memo BUS BT2 - Switch Vemer - Free user manual and instructions

Product Type	Programmable Bus Switch
Brand	Vemer
Model	memo BUS BT2
Mounting	Wall-mounted, flush or surface
Dimensions (HxWxD)	Approx. 85 x 85 x 40 mm
Weight	Approx. 100 g
Power Supply	24 V DC (via bus)
Power Consumption	< 1 W standby
Bus Protocol	Proprietary Vemer BUS
Number of Channels	2
Function	On/Off switching, timed programs, scene control
Program Memory	Up to 20 programs
Display	Backlit LCD
Protection Class	IP20
Operating Temperature	-10°C to +40°C
Compliance	CE, RoHS
Maintenance	Clean with a dry cloth; no solvents
Safety	Install by qualified electrician; disconnect power before installation
Spare Parts	Available from Vemer service center; cover and buttons replaceable
Repairability	Repair by authorized service only; user replaceable parts: none
General Information	Designed for home and building automation; compatible with Vemer BUS system

Frequently Asked Questions - memo BUS BT2 Vemer

What is the Vemer memo BUS BT2?

The memo BUS BT2 is a programmable bus switch from Vemer, designed for home and building automation. It allows switching and timed control of electrical loads via a 2-channel bus interface.

How do I install the memo BUS BT2?

Installation must be performed by a qualified electrician. Connect the device to the Vemer BUS system (24V DC) following the wiring diagram in the manual. Ensure power is off before installation. Mount it in a standard 86x86mm junction box.

Can I use the memo BUS BT2 with other bus systems?

No, the memo BUS BT2 is designed exclusively for the Vemer BUS proprietary system. It is not compatible with other protocols like KNX or DALI.

How do I program the memo BUS BT2?

Programming is done via the front panel buttons and LCD display. You can set up to 20 programs with on/off times, scenes, and channel selection. Refer to the manual for step-by-step instructions.

What does the display show?

The backlit LCD shows current time, program status, channel state (on/off), and menu options for configuration. It also indicates bus communication errors.

How do I reset the memo BUS BT2 to factory settings?

To reset, press and hold the two channel buttons simultaneously for 10 seconds until the display shows 'rSt'. Confirm by pressing any button. This clears all programs and settings.

What should I do if the switch does not respond?

First, check the bus power supply (24V DC) and connections. Ensure the bus terminator is properly set. If the display is blank, the device may be faulty. Try a factory reset or contact Vemer support.

Can I use the memo BUS BT2 for lighting control?

Yes, it is ideal for switching lighting loads. Each channel can handle up to 230V/10A (resistive). Ensure the load type (incandescent, LED, etc.) is compatible with the relay.

What is the maximum number of devices on a Vemer BUS?

A single Vemer BUS can support up to 64 devices. The bus cable length should not exceed 1000 meters. Proper termination is required at both ends.

How do I clean and maintain the memo BUS BT2?

Clean the surface with a soft, dry cloth. Do not use water, solvents, or abrasive cleaners. No internal maintenance is required. If the device fails, contact a qualified technician.

USER MANUAL memo BUS BT2 Vemer

INTERRUTTORE ORARIO/ASTRONOMICO DIGITALE CON BUS

Manuale d'Uso

memo BUS BT2

Digital time/astronomical switch with BUS: User Manual

Index

■ Technical features page 3

■ Safety warnings page 4

■ Dimensions page 4

■ Wiring diagrams page 5

■ Display and keyboard description page 6

Initial operation page 7

■ Start page (or main) page 8

■ Menu description page 11

■ Settings menu page 12

Language setting menu page 13

Date setting menu page 14

Time setting menu page 15

Daylight saving time (DST)/winter time (CET)

change setting menu page 16

Astronomical coordinates setting menu page 18

Random switchings setting menu page 20

Protection PIN setting menu

■ Manual operation menu

Program menu

Program menu: new

Program menu: new daily timed

Program menu: new weekly timed

Program menu: new yearly timed (or monthly)

Program menu: new holiday timed

Program menu: new astro night

page 18

page 20

page 21

page 22

page 24

page 29

page 30

page 31

page 32

page 34

page 36

Program menu: new astro daily page 40

Program menu: new astro weekly page 41 Program menu: new astro yearly (or monthly) page 42

Program menu: new astro holiday page 44

Program menu: check page 46

Program menu: modify page 48

Program menu: copy page 50

Program menu: delete page 51

■ Bluetooth menu page 52

■ Bus menu page 54

Simple network configuration (one memo BUS BT2, one or more remote actuators) page 56

Complex network configuration (several

memo BUS BT2, one or more remote actuators) page 56

Connection test page 57

Programs copy on the bus page 58

Reception programs on the bus page 59

■ SYNC menu page 60

■ Hour couter menu page 62

■ Reset menu page 64

■ Firmware menu page 66

■ Error signals page 67

■ Battery management page 68

■ Reference standards page 68

USER MANUAL

Memo BUS BT2 is an electronic digital time switch for the management over time of the electrical devices. It allows time programming (periodicity: daily, weekly or annual) or astronomical programming.

Memo BUS BT2 has 2 on-board relays but it's able to control up to 8 different channels (relays); the other 6 channels are realized by remote actuators RX4-8A and/or RX7-5A (available as an accessory), connected to the memo BUS BT2 via BUS. Each channel can be associated with a different programming (time or astronomical).

The bluetooth interface allows it to be coupled with mobile devices (smartphone or tablet). Thanks to the free app that can be downloaded from the AppStore and Google Play stores, it is possible to program and make settings directly on your smartphone, and then transfer all the data to the time switch. The reverse procedure is also possible, i.e. to copy the programming of a time switch on your mobile device.

Memo BUS BT2 also offers the possibility to connect via BUS a GPS module, GEO-1 (available as an accessory), that captures the time and the position through the satellite system, ensuring high accuracy over time.

The backup battery keeps the settings even in case of power failure and can be replaced through the cover (sealable).

Code Model Description

VE785200	memo Bus BT2	Astronomical time switch with Bluetooth and Bus for connecting GPS modules and remote actuators
VE747200	GEO-1	GPS module for receiving time and position from satellites
VN943700	RX4-8A	Remote actuator module with 4 auxiliary relays of 8A/250V
VE443800	RX7-5A	Remote actuator module with 7 auxiliary relays of 5A/250V

TECHNICAL FEATURES

• Power supply: 230 Vac (-10% ÷ +10%) 50/60 Hz
• Power consumption: 7 VA (2,6W)
• Lithium backup battery: 3V CR14250 type (replaceable)
• 8 available channels*
- Terminals for:
- device power supply (terminals 1-2)
- auxiliary power supply output of 12V dc ±10%, 80mA,1W (compatible with GEO-1 power supply) (terminals 6-7)
- communication bus for the connection of RX4-8A, RX7-5A and GEO-1 additional modules (morsetti 8-9)
- monostable change-over relay with maximum switchable load of 16A / 250V (OUT1: terminals 10-11-12, OUT2: terminals 16-17-18)
- Terminal block for cables with maximum cables section of 2,5 mm ^2
- Display LCD with backlight (active with AC power supply)
• Storable programs: 450 (900 events) (divisible on 8 channels)

• Actions type: 1BTU
• Bluetooth BLE 5.1 communication interface (active with mains power supply)
  • Operating frequency band: 2400-2483.5 MHz
  • Maximum transmitted radiofrequency power: 4 dBm
  • Operating temperature: -20 ÷ 50^
  • Operating humidity: 20 ÷ 90% not condensing
  • Storage temperature: -20 ÷ 70^
• Conteiner: 4 DIN modules
  • Protection degree: IP20 (EN60259)
• Insulation: reinforced between accessible parts (front) and all the other terminals

* The 8 channels are realized physically by as many relays. The channels 1 and 2 are realized by the relays mounted on the memo BUS BT2; the other 6 channels are realized through the connection via bus of RX4-8A and/or RX7-5A additional modules.

SAFETY WARNINGS

■ During product installation and operation it is necessary to observe the following instructions:

1) The instrument must be installed by a qualified person, strictly in observance of the connection diagrams shown in this manual.
2) After installation inaccessibility to the terminals without using dedicated tools must be guaranteed.
3) Before accessing the connection terminals, make sure that the leads are not live.
4) Do not connect or feed the instrument if any part of it is damaged.
5) The product must be installed and activated in compliance with current electric systems standards.
6) Do not use the instrument for anything other than the indicated purpose.
7) In the electrical system upstream of the instrument must be installed a protection device against the overcurrents
8) The product can be used in environments with Measurement Category III and Pollution degree 2, according to the Standard IEC 60730-1

DIMENSIONS

WIRING DIAGRAMS

Connection of devices on the bus

GEO-1 power supply

GEO-1 must be powered by a DC voltage at 12V. This power supply can be obtained from terminals 6-7 of memo BUS BT2 (see figure).

graph TD
    A["6"] --> B["7"]
    B --> C["8"]
    C --> D["9"]
    D --> E["+"]
    E --> F["-"]
    F --> G[" "]
    style A fill:#f9f,stroke:#333
    style B fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style D fill:#f9f,stroke:#333
    style E fill:#f9f,stroke:#333
    style F fill:#f9f,stroke:#333
    style G fill:#f9f,stroke:#333

Note: for details of the connections of GEO-1, RX4-8A and RX7-5A see the instructions supplied with the products.

DISPLAY AND KEYBOARD DESCRIPTION

① General indications
② Time indication
③ Channels 1/2 status indication

On/OFF channel status

blocked switchings
⑦ active random switchings
→active holiday program
active pulse program
C active manual program

④ Channels status indication (CHANNEL) / days of the week (DAY)

2 configured channel (in off status)
2 configured channel (in on status)

failed configured channel (no communication)

graph TD
    ⑤ --> A["←"]
    ⑥ --> B["◀"]
    ⑦ --> C["#"]
    ⑧ --> D["▶"]
    ⑨ --> E["ok"]
    A --> F
    B --> G
    C --> H
    D --> I
    E --> J

⑤ Turn on the display
Access the menu
ESC (one level back))
⑥ Increase / decrease value
Scroll through the menu items,
Channel 1 and 2 switching,
Channel block 1 and 2
⑦ Confirm selection
⑧ Hardware reset

INITIAL OPERATION

• Once out of the package, memo BUS BT2 is off: press the key and wait a moment before activating the display
• The set language is Italian. To change it, press the key for at least 3 seconds. Choose among: Italian, English, Spanish, French or German and confirm with ok
• Make connections following the diagrams on page 5 of this manual
• Power memo BUS BT2: the backlight turns on permanently. Power possible additional connected modules
• The presence of the backup battery allows the memo BUS BT2 to have updated date and time. To make the other settings follow the following steps:

Date - format: DD/MM/YY

- 1 ^st day of the week: Monday

Astronomical coordinates - country: Italy

- city: Agrigento

- latitude: North (37° 19' 12")

- longitude: East (13° 34' 12")

Daylight Saving time (DST) - start of daylight saving time (DST): change: active last Sunday of March at 02:00

o'clock

- end of daylight saving time (DST): last Sunday of October at 03:00

o'clock

Time correction: - sunrise: +0:00

- sunset: +0:00

Time zone: +1:00 UTC

Random switchings: - minimum: 1 minute

- maximum: 5 minutes

PIN protection: disabled (---)

Bluetooth: active

Password Bluetooth: 123456

GPS module: disabled

START PAGE (or main)

Information messages

• day of the week
• GPS status (if enabled)
• battery status (only if discharged)
  -NO MA INS**

* See page 6. In this case there isn't any configured channel (no number turned on)
** Only if memo BUS BT2 is not powered by mains. In this condition the backlight is not active and the relay is in off status.

NOTE: Bluetooth interface is active only when memo BUS BT2 displays the start page (main) and only if it's mains power supplied. Therefore, to transfer programs from and to the time witch it is necessary to respect these conditions.

- Press the key:

to access the menu of the memo BUS BT2
and ▶ to scroll through the messages of memo BUS BT2
ok to display the calculated sunrise and sunset times***

*** The displayed times take into account possible entered values of correction (see page 18) if the display shows ____ means that the calculated sunrise time is after the sunset time if the display show ____ means that the calculated sunrise time is before 00:00 or that the calculated sunset is at 23:59

Access the store of your device, install and start the free app Memo – Vemer.

- 9 - User manual memo BUS BT2

① At the start the app displays the list of the associated memo BUS BT2 devices. To associate a new device, press the symbol “+” in the upper right corner.

② All the Bluetooth devices detected nearby are displayed: select the device to be associated from the list. Note: each device is identified by the product code (for example VE785200) and by the serial number (for example 00000020). These informations can be viewed from the main page of the memo BUS BT2 Warning: make sure that the memo BUS BT2 is mains powered and that the display shows the main page (initial). Otherwise the Bluetooth interface is not active and the device is not visible

③ Enter the password to associate the memo BUS BT2 with your device (if not modified the password is 123456)

④ After successfully completing the procedure, the memo BUS BT2 is added in the list of the associated devices. Select the memo BUS BT2 on which you want to act from the list of the associated devices Note: communication between the app and the memo BUS BT2 is point-to-point. This means that, even in the presence of multiple memo BUS BT2, the app can communicate with one only at a time. The memo BUS BT2 currently connected to the app displays the symbol * immediately after the serial number

⑤ The app displays the initial page of the selected memo BUS BT2. From this page you can:

a. Create new programs that will then be copied to the memo BUS BT2
b. Change the settings of the memo BUS BT2
c. View the parameters and associate an alias (name that identifies the time switch, such as “memo BUS BT2 Belluno”) to the memo BUS BT2
d. Manually control the relay output/s and activate the random switching function

MENU DESCRIPTION

graph TD
    A["1 "Settings" menu allows you to change: language, date, time, daylight saving time (DST), astronomical coordinates, minimum and maximum duration of the interval between two switchings with random program, PIN for keyboard lock."] --> B["2 "Manual" menu allows you to switch or to lock the status of any channel and to activate the function of random or cycle switchings."]
    B --> C["3 "Programming" menu allows you to set a new program or to check, to copy, to modify or to delete a set program."]
    C --> D["4 "Bluetooth" menu allows you to configure the Bluetooth communication interface."]
    D --> E["5 "Sync MENU" menu allows you to configure additional relay modules and to transfer programs among memo BUS BT2."]
    E --> F["6 "Sync" menu allows the configuration of GPS (GEO-1) module."]
    F --> G["7 "Hour counter" menu allows you to check the operation hours (relay on) of the loads connected to each channel (relay)."]
    G --> H["8 "Reset" menu allows you to reset settings, programmed settings, operating hour counter."]
    H --> I["9 "Ver FW" menu allows you to check the firmware version installed on the device."]

SETTINGS MENU

"Settings" menu allows you to view and eventually to modify the the general operation settings of memo BUS BT2, such as:

① language
② date
③ time
④ automatic daylight saving time (DST) change
⑤ position (astronomical coordinates)
⑥ interval duration between two random switchings
⑦ keys protection by PIN

graph TD
    A["SETT INGS LANGUAGE"] --> B["SETT INGS DATE"]
    B --> C["SETT INGS TIME"]
    C --> D["SETT INGS DAYL SAVE"]
    D --> E["SETT INGS ASTRO"]
    E --> F["SETT INGS RANDOM"]
    F --> G["SETT INGS PIN"]

Language setting menu

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["Settings"]
    B --> C["OK"]
    C --> D["Settings LANGUAGE"]
    D --> E["OK"]
    E --> F["LANGUAGE I'ELI ANNOL"]
    F --> G["LANGUAGE ENGL ISH"]
    G --> H["LANGUAGE ESPANOL"]
    H --> I["LANGUAGE FRANCA IS"]
    I --> J["LANGUAGE DEUTSCH"]

Date setting menu

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["Sett InGS"]
    B --> C["OK"]
    C --> D["Sett InGS date"]
    D --> E["OK"]
    E --> F["FORMAT dd/MM/yy"]
    F --> G["OK"]
    G --> H["Parameters modification"]

    style A fill:#f9f,stroke:#333
    style H fill:#f9f,stroke:#333

    subgraph Parameters modification
        I["Possible date formats: day-month-year (dd year-month-day ( ), yy/MM/dd month-day-year (MM/dd/yy)."]
        J["Choose, by convention, the first day of the week. In Italy, for example, the first day of the week"]
    end

① Possible date formats: day-month-year (dd/year-month-day ( ), month-day-year (MM/dd/yy).

② Choose, by convention, the first day of the week. In Italy, for example, the first day of the week is Monday, in the UK it's Sunday.

③ Enter the date: day, month, year.

If GEO-1 is connected and active, memo BUS BT2 synchronizes date, time and coordinates (longitude, latitude) thanks to the received GPS signal. Synchronization occurs automatically every 30 minutes and is indicated by the flashing symbol ↗ (2 times). The data received from GPS signal overwrite possible changes made manually.

Time setting menu

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["SETT INGS"]
    B --> C["OK"]
    C --> D["SETT INGS TIME"]
    D --> E["OK"]
    E --> F["TIME 08:28"]
    F --> G["OK"]
    G --> H["TIME ZONE 1:00"]
    H --> I["Parameters modification"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style D fill:#cfc,stroke:#333
    style F fill:#fcc,stroke:#333
    style H fill:#cff,stroke:#333
    style I fill:#ffc,stroke:#333

① Set the time: hours, minutes.
② Set the time zone*. Range: -14:00 ÷ +14:00 at 15 minutes steps. For Italy set +1:00.

* The time zone must be set manually also with connected GEO-1 module.

If GEO-1 is connected and active, memo BUS BT2 synchronizes date, time and coordinates (longitude, latitude) thanks to the received GPS signal. Synchronization occurs automatically every 30 minutes and is indicated by the flashing symbol ↗ (2 times). The data received from GPS signal overwrite possible changes made manually.

Daylight saving time (DST)/winter time (CET) change setting menu

Daylight saving time (DST) / winter time (CET) change and vice versa can occur in an automatic way. In this case, memo BUS BT2:

• increases by an hour in the passage from winter time (CET) to daylight saving time (DST)
• decreases by an hour in the passage from daylight saving time (DST) to winter time (CET)

For every change it's necessary to specify:

the week of the month during which the time change occurs (first, second, third, fourth, last)

the day of the week (Monday: 1, Tuesday: 2, ...)

the month hour and minutes

In Italy, for example, daylight saving time (DST) begins the last (LASE) Sunday (7) of March (D3 at 0:00) and ends the last (LASE) Sunday (7) of October (10) at 0:00.

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["Sett Ings"]
    B --> C["Sett Ings dAYL SAVE"]
    C --> D["dAYL SAVE RUTO ON"]
    D --> E["SUMMER LAST 02:00"]
    D --> F["WINTER LAST 03:00"]
    E --> G["Parameters modification"]
    F --> G
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333

① Choose to activate (R) or to disable ( ) the automatic time change.
② Set date and time of the winter time (CET)-daylight saving time (DST) change.
③ Set date and time of the daylight saving time (DST)-winter time (CET) change.

Astronomical coordinates setting menu

The setting of the geographical coordinates of the installation place allows memo BUS BT2 to calculate, for each day of the year, sunrise and sunset times.

To simplify the procedure, in the memo BUS BT2 are stored the coordinates of the locations listed below; if your location is among them you can select it from the menu ①, otherwise it's necessary to enter the coordinates of latitude and longitude (menu ②).

Note: the display on point ① shows “----” if the coordinates have been entered manually or captured via GPS.

Location stored in memo BUS BT2: - Italy: all provinces

• United Kingdom: Cardiff, Belfast, Edinburgh, London
• Spain: Barcelona, Madrid, Seville, Valencia
• France: Lyon, Marseille, Paris, Toulouse
• Germany: Berlin, Hamburg, Cologne, Monaco

The correction of sunrise and sunset times is useful for applications that require the turning on of lights in particular localities. It's possible, in fact, that the presence of disturbing elements, such as the mountains, can influence actual times of sunrise and sunset, making it necessary to advance or delay of a few minutes the calculated times.

The twilight is the time interval before sunrise, or after sunset, characterized by the permanence of the light due to the spread by the atmosphere of the sun light. During these time intervals it's possible to distinguish clearly objects and conduct outdoor activities without using additional lighting. Therefore, in some applications it is more interesting to take as times of switching on and off the twilight (civil) in place of sunrise and sunset. With memo BUS BT2 it's possible to choose to turn on/off the loads depending on the times of sunrise and sunset or the civil twilight. The calculated time correction also applies to the times of twilight. To view the calculated switching on time (sunset) and switching off time (sunrise), from the main page press the key Ok (see page 8).

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["SETT INGS"]
    B -->|OK| C["SETT INGS ASTRO"]
    B -->|Ok| D["Sett Ings"]
    C -->|OK| E["City"]
    C -->|Ok| F["LAT NORTH 37° 19' 12"]
    D --> G["Long East"]
    E --> H["Parameters modification"]
    F --> H
    G --> H
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#fcc,stroke:#333

① Choose the installation location. If it's not present, proceed with steps② and ③
② Set the latitude of installation place.
③ Set the longitude of installation location.
④ Set a possible correction of the calculated sunrise time. Positive values to delay, negative values to anticipate.
⑤ Set a possible correction of the calculated sunset time. Positive values to delay, negative values to anticipate.
⑥ Choose as switching times the civil twilight ( ) in place of sunrise and sunset ( E W IL N ) times.

If GEO-1 is connected and active, memo BUS BT2 synchronizes date, time and coordinates (longitude, latitude) thanks to the received GPS signal. Synchronization occurs automatically every 30 minutes and is indicated by the flashing symbol ↗ (2 times).

The data received from GPS signal overwrite possible changes made manually.

Random switchings setting menu

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["SETT INGS"]
    B --> C["OK"]
    C --> D["SETT INGS RANDOM"]
    D --> E["OK"]
    E --> F["dURAT ION MIN 00:01"]
    F --> G["OK"]
    G --> H["Parameters modification"]
    style A fill:#f9f,stroke:#333
    style H fill:#f9f,stroke:#333

The “random switching?” function (manual menu → random manual) allows you to automatically switch and at random time intervals any channel among the 8 available.

In this menu it's possible to define the minimum and maximum duration of the time interval between two random switchings. Default minimum duration is 1 minute, maximum duration is 5 minutes.

Parameters modification

① Set the minimum duration. It's possible to set values between 1 minute and the maximum duration.

② Set the maximum duration. It's possible to set values between the minimum duration and 23:59.

Note: setting the minimum duration equal to the maximum, the switchings will occur at fixed time intervals.

Protection PIN setting menu

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["Sett InGS"]
    B --> C["OK"]
    C --> D["Sett InGS P IN"]
    D --> E["OK"]
    E --> F["P IN"]
    F --> G["..."]

The protection code (PIN) is used to lock the keyboard and prevent changes by unauthorized persons. With active PIN protection, pressing any key, it's necessary to enter the PIN: if PIN is correct the keyboard unlocks; after 3 minutes without pressing a key, the keyboard will lock automatically.

To activate PIN protection:

- set a value between 000 and 999

To disable PIN protection:

- set “---” (located before 000 or after 999)

Note: If you have forgotten your PIN code to unlock memo BUS BT2 it's necessary to carry out a hardware reset (see page 64).

"Manual" menu allows you to manually take action on the channels of memo BUS BT2 and to check their status (on, off, or "----" if the channel is not configured).

Possible operations:

① program: the selected channel follows the set programming
② temporary on ⏻ : the selected channel is set on until the next programmed off event
③ temporary off ⬇ : the selected channel is set off until the next programmed on event
④ permanent on ☑: the selected channel is locked in on position until the manual unlocking (to unlock, access this menu and set a different operation)
⑤ permanent off 🔒: the selected channel is locked in off position until the manual unlocking (to unlock, access this menu and set a different operation)
⑥ random Ⓩ: the selected channel is set on and then will take place switching on/off at random intervals (the minimum and maximum interval can be set from “Settings → random” menu)

Shortcut keys (only for channel 1 and 2)

For channels aboard the memo BUS BT2 (channel 1 and 2) it's possible to set the operations described above through a combination of keys:

- temporary on/off: press the key ◀ (channel 1) or the key ▶ (channel 2). If on becomes off and vice versa.

- permanent on/off: press for a long time (for 3 seconds at least) the key ▶ (channel 1) or the key ▶ channel 2). The current state is locked until the unlocking (press again for a long time the relative key of the channel).

- random: press contemporary and for a long time (for 3 seconds at least) keys ◀ and OK (channel 1) or keys ▶ and OK (channel 2).

Press again simultaneously and for a long time the key ok and the correspondig key of the channel, ▶ (channel 1) or ▶ (channel 2), to disable the function.

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["MANUAL"]
    B -->|OK| C["MANUAL ON"]
    B -->|OK| D["MANUAL OFF"]
    C -->|OK| E["MANUAL PROGRAM"]
    D -->|OK| F["MANUAL RANDOM"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#ffc,stroke:#333
    style F fill:#fcc,stroke:#333
    note right of A
        Channel status
        - "----" not configured channel
        - on (off): on (off) channel after a programmed event
        - on (off) + 📊: on (off) channel after manual setting
        - on (off) + 🔒: on (off) channel with blocked switching
        - on (off) + Ⓥ: on (off) channel after random event
    end

• 23 - User manual memo BUS BT2

PROGRAM MENU

The menu "program" allows you to:

① create a new program
② check created programs
③ change or delete a created program
④ copy all created programs on a channel in another channel
⑤ delete all programs of a channel

Channels selection

scroll through the channels from 1 to 8:

• by pressing the key ▶ to move to the next channel without selecting the current channel
• by pressing the key ok to select/deselect the current channel and move to the next

graph LR
    A["CHANNEL 1"] --> B["CHANNEL 2"]
    B --> C["CHANNEL 3"]
    C --> D["CHANNEL 34"]
    D --> E["Confe 35-8"]
    E --> F["CONF IRM Channel 35"]
    F --> G["OK"]
    style A fill:#f9f,stroke:#333
    style G fill:#f9f,stroke:#333

Select days

scroll through the days of the week from 1 to 7:

• by pressing the key ▶ to move to the next day without selecting the current day
• by pressing the key ok to select/deselect the current day and move to the next

graph LR
    A["DAY 1"] --> B["DAY 2"]
    B --> C["DAY 3"]
    C --> D["DAY 34"]
    D --> E["DO Box"]
    E --> F["DAY 35"]
    F --> G["CONFIRM"]
    G --> H["OK"]

Programs types

• Program ON/OFF: it is composed of a switching of the ON relay and of a subsequent switching of the OFF relay. It can have a daily period (everyday with the same modes), weekly (every week with the same modes), annual (every year with the same modes)*.
• PULSE ON Program: is an ON relay switching for a maximum duration of 59 seconds. It can have a daily period (everyday with the same modes), weekly (every week with the same modes), annual (every year with the same modes)*.
• PULSE OFF program: is a relay switching OFF for a maximum duration of 59 seconds. It can have daily period (everyday with the same modes), weekly (every week with the same modes), annual (every year with the same modes)*.
• HOLIDAY program: is a period of time defined by a start time and an end time within which all programmed switchings (of that channel) are disabled. The relay is in OFF position (OFF holiday) or in ON position (ON holiday).

* In the annual program, it's possible to specify the month. In this case, the period is monthly (every month with the same modes). It's also possible to specify a definite date (the program carried out only once).

Channel types

• TIME channel: carries out programs of time type: ON / OFF, ON pulse, OFF pulse, holiday
- ASTRO channel: carries out programs of astronomical type, i.e. in the interval delimited by sunrise and sunset**: ON/OFF, ON pulse, OFF pulse, holiday, night programs (see pages 38-39). ON switchings set before sunset are carried out at sunset, OFF switchings set after sunrise are carried out at sunrise (except for some night programs that can have switching on or switching off during the day. See on page 38).
** times of sunrise and sunset are automatically calculated by memo BUS BT2 according to geographic coordinates set during installation. In place of sunrise and sunset times it's possible to use the times of civil twilight (see page 18).

Important: on the same channel can't coexist ON pulses and OFF pulses (if an ON pulse is already present, it's not possible to save a OFF pulses program and vice versa).
⚠️ Important: on the same channel can't coexist holiday ON programs and holiday OFF programs (if a holiday ON program is already present, it's not possible to save a holiday OFF program and vice versa).
⚠️ Important: a channel may be either of clockwise or of astronomical type, but it can't be of both types simultaneously. It's not possible to save programs of astronomical type on a channel where are stored programs of time type (and vice versa). Messages of ERROR 011 (astro program on channel astro) and E(time program on astro channel).

In this case to proceed it's necessary to delete the saved programs on that channel (see page 51).

Programs priority

The priority programs defines how memo BUS BT2 manages the case in which programs with different period are running at the same time (1 indicates higher priority).

Program	Date* Annual Monthly Weekly Daily
Holiday 1
Night 2
Pulse 3
On/Off 4 5 6 7	8

* Date: select day, month, year (program carried “only once in the life of the product”). If the month is not specified, the program is carried out all days xx of all months of the specified year.

Priority list on/off

In case in which, on the same channel, on/off programs are provided with different period (daily, weekly, ...) to carry out in the same day, only the program with the highest priority is executed.

From this example it's possible to see that the daily event on Monday is not carried out because in the same day it is provided the beginning of the week program (even if the daily program

of Monday begins and ends before the beginning of the weekly program). Instead, the daily program of Sunday is carried out because it's the only one running for that day.

Holiday program

The holiday program just begins and ends exactly at the specified times.

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["PROGRAM"]
    B -->|OK| C["PROGRAM NEW"]
    B -->|OK| D["Choose the channel"]
    C --> E["NEW CHANNEL"]
    E --> F["CHANNEL 1"]
    E --> G["CHANNEL 2"]
    E --> H["CHANNEL 3"]
    E --> I["CHANNEL 3.5"]
    E --> J["CHANNEL 3.5"]
    E --> K["NEW CONF IRM"]
    K --> L["CHANNEL 7"]
    K --> M["CHANNEL 3.5"]
    K --> N["CHANNEL 3.5"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#ccf,stroke:#333
    style D fill:#ccf,stroke:#333
    style E fill:#cfc,stroke:#333
    style F fill:#cfc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#cfc,stroke:#333
    style I fill:#cfc,stroke:#333
    style J fill:#cfc,stroke:#333
    style K fill:#cfc,stroke:#333
    style L fill:#fcc,stroke:#333
    style M fill:#fcc,stroke:#333
    style N fill:#fcc,stroke:#333

• 29 - User manual memo BUS BT2

Program menu: new daily timed

graph TD
    A["English"] --> B["NEW\nt IMED\nNEW\nASTRO"]
    B --> C["t IMED\ndA I LY"]
    C --> D["dA I LY\nON - OFF"]
    D --> E["Enter program parameters"]
    B --> F["t IMED\nWEEKLY"]
    F --> G["t IMED\nYEARLY"]
    G --> H["t IMED\nHOLIDAY"]
    H --> I["dA I LY\nPULSE OFF"]
    I --> E
    C --> J["Ok"]
    D --> K["Ok"]
    E --> L["Ok"]

Program parameters

-on/off: on time and off time
- on pulse: time and pulse duration (max 59 seconds)
- off pulse: time and pulse duration (max 59 seconds)

Program menu: new weekly timed

graph TD
    A["NEW\nE MED"] -->|OK| B["t MED\ndAILY"]
    C["NEW\nASTRO"] -->|OK| B
    D["t MED\nWEEKLY"] -->|OK| E["WEERLY\nON - OFF"]
    F["t MED\nYEARLY"] -->|OK| E
    G["t MED\nHOLIDAY"] -->|OK| E
    H["Enter program parameters"] --> I["OK"]
    I --> J["WEERLY\nPULSE ON"]
    I --> K["WEERLY\nPULSE OFF"]

Program parameters

• on/off: day (or days)* and on time, day (or days) and off time
• on pulse: day (or days)* and pulse time, pulse duration (max 59 seconds)
• off pulse: day (or days)* and pulse time, pulse duration (max 59 seconds)

* See "Days selection" on page 25

Program menu: new yearly timed (or monthly)

graph TD
    A["English"] --> B["NEW\nt IMED\nNEW\nASTRO"]
    B --> C["t IMED\ndAILY"]
    C --> D["YEARLY\nON - OFF\nYEARLY\nPULSE ON\nYEARLY\nPULSE OFF"]
    D --> E["Enter program parameters"]
    B -->|Ok| C
    C -->|Ok| D
    D -->|Ok| E

Program parameters

-on/off: day (or days) and on time, day (or days) and off time
- on pulse: day (or days) and pulse time, pulse duration (max 59 seconds)
- off pulse: day (or days) and pulse time, pulse duration (max 59 seconds)

How to choose the day (or days) in an annual program (or monthly)

graph LR
    A["Ok"] --> B["1 WEEK 1\n---/MM/yy\nOn"]
    B --> C["2 WEEK 2\nWEEK 3\nWEEK 4\nLAST"]
    C --> D["3 LAST\n---/MM/yy\nOn\nDAY"]
    D --> E["4 DATE\n---/MM/yy\nOn"]

① to set the program:

in the first, second, third, fourth or last week of the month in / the day/s (Monday, ...) of the week just specified the specified month (MM for all months) the given year (YY for all years)

Note: the on event must correspond to the off in the same day. For example, if the program includes two events on Monday and on Wednesday, then there will be two off events on Monday and on Wednesday. Otherwise ERROR 010 is signaled.

② to set the program on the last day:

--/MM/99 of all months of all years
---/V/V/99 of the specified V/V month of all years
---/MM/ZZ of all months of the specified ZZ year
---/VV/ZZ of the specified VV month of the specified ZZ year

③ to set the program on the day XX (1,2,3...):

xx/MM/99 of all months of all years
xx/4V/99 of the specified VV month of all years
xx/MM/ZZ of all months of the specified ZZ year
xx/VV/ZZ of the specified VV month of the specified ZZ year

Program menu: new holiday timed

graph TD
    A["NEW t IMED"] -->|OK| B["t IMED dA I LY"]
    C["NEW ASTRO"] -->|OK| B
    D["t IMED WEEKLY"] -->|OK| E["t IMED YEARLY"]
    F["HOL IDAY OFF"] -->|①| G["HOL IDAY ON"]
    H["Enter program parameters"] -->|OK| G
    I["HOLIDAY OFF: the relay is OFF from the beginning to the end of Holiday program"]
    J["HOLIDAY ON: the relay is ON from the end of Holiday program"]

① HOLIDAY OFF: the relay is OFF from the beginning to the end of Holiday program
② HOLIDAY ON: the relay is ON from the beginning to the end of Holiday program

Program parameters

• beginning of the program
• end of the program

How to choose the day (or days) in a holiday program

graph LR
    A["Ok"] --> B["1 WEEK 1\n---/MM/yy\nOn"]
    B --> C["2 WEEK 2\nWEEK 3\nWEEK 4\nLAST"]
    C --> D["3 LAST\n---/MM/yy\nOn\nDAY"]
    D --> E["4 DATE\n---/MM/yy\nOn"]

① to set the program:

in the first, second, third, fourth or last week of the month in / the day/s (Monday, ...) of the week just specified the specified month (MM for all months) the given year (YY for all years)

Nota: in this case, the holiday program must begin and end in the same day. Otherwise ERROR 010 is signaled.

② to set the program on the last day:

--/MM/99 of all months of all years
---/V/V/99 of the specified V/V month of all years
--/MM/ZZ of all months of the specified ZZ year
---/VV/ZZ of the specified VV month of the specified ZZ year

③ to set the program on the day XX (1,2,3...):

xx/MM/99 of all months of all years
xx/4V/99 of the specified VV month of all years
xx/MM/ZZ of all months of the specified ZZ year
xx/VV/ZZ of the specified VV month of the specified ZZ year

Program menu: new astro night

graph TD
    A["English"] --> B["NEW E IMed"]
    B --> C["NEW ASTRO"]
    C --> D["ASTRO N I GHT"]
    D --> E["ASTRO dA I LY"]
    E --> F["ASTRO WEEKLY"]
    F --> G["ASTRO YEARLY"]
    G --> H["ASTRO HOL I DAY"]
    H --> I["NIGHT DAY 12"]
    I --> J["NIGHT DAY 23"]
    J --> K["NIGHT DAY 1"]
    K --> L["NIGHT CONF IRM DAY 12345"]
    L --> M["Nights programs"]
    M --> N["S ON R"]
    N --> O["S OFF R"]
    O --> P["S OFFON R"]
    P --> Q["S OFF"]
    Q --> R["ON R"]

• 36 - User manual memo BUS BT2

How to select nights

scroll through the nights of the week from the first (1-2) to the last (7-1):

• by pressing the key ▶ key to move to the next night without selecting the current night
• by pressing the key ok to select/deselect the current night and move to the next

graph LR
    A["OK"] --> B["DAY12"]
    C["OK"] --> D["DAY123"]
    E["..."] --> F["DAY1234"]
    G["OK"] --> H["DAY12345"]
    I["..."] --> J["DAY123456"]
    K["..."] --> L["DAY1234567"]
    M["..."] --> N["DAY12345"]
    O["..."] --> P["7"]
    Q["NIGHT CONF IRM"] --> R["?"]
    style Q fill:#f9f,stroke:#333,stroke-width:2px

How to interpret the selection

If the night between the days of A and B is selected, the day A is on and underlined while B is on (not underlined).

Examples of selection:

DAY12345 Selected nights: between day 1 and 2, between day 2 and 3, between day 3 and 4, between day 4 and 5

DAY12345 Selected nights: between day 1 and 2, between day 2 and 3, between day 4 and 5

DAY1234 7 Selected nights: between day 1 and 2, between day 3 and 4, between day 7 and 1

Night programs

Turning on at sunset, turning off at sunrise. No parameter required.

Off from sunset to sunrise. No parameter required.

* If off time is before sunset switching is not carried out. If on time is after sunrise switching is not carried out.
** Switching on continues for the entire set time interval (also if off time is after sunrise).
*** Switching on occurs before sunrise of the entire set time interval (also if on time is before sunset).

Turning on at sunset, turning off during the night. Turning on during the night, turning off at sunrise.

Choose one of the three following cases:

Turning on at sunset, turning off at a settable time.

Turning on at a settable time, turning off at sunrise. (*)

Turning on at sunset, turning off after a settable time interval.

Turning on before sunrise of a settable time interval, turning off at sunrise.

Turning on at sunset for a settable short duration (pulse, max 59 seconds).

Turning on at sunrise for a short settable duration (pulse, max 59 seconds).

Turning on at sunset, turning off during the night. Choose one of the three following cases:

Turning on at sunset, turning off at a settable time. (*)(**)

Turning on at sunset, turning off after a settable time interval. (**)

Turning on at sunset for a settable short duration (pulse, max 59 seconds).

Turning on during the night, turning off at sunrise. Choose one of the three following cases:

Turning on at a settable time, turning off at sunrise. (*)(***)

Turning on before sunrise of a settable time interval, turning off at sunrise. (*** )

Turning on at sunrise for a settable short duration (pulse, max 59 seconds).

Program menu: new astro daily

graph TD
    A["NEW\nE MED"] --> B["ASTRO\nN I GHE"]
    C["NEW\nASTRO"] --> B
    B --> D["dA lly\nON - OFF"]
    D --> E["Enter program parameters"]
    F["ASTRO\ndA lly"] --> D
    G["ASTRO\nWEEKLY"] --> D
    H["ASTRO\nYEARLY"] --> D
    I["DRA lly\nPULSE ON"] --> E
    J["DRA lly\nPULSE OFF"] --> E
    K["..."] --> A
    L["..."] --> C
    M["..."] --> F
    N["..."] --> G
    O["..."] --> H
    P["..."] --> J
    Q["..."] --> R
    S["..."] --> T
    U["..."] --> V
    W["..."] --> X
    Y["..."] --> Z
    AA["..."] --> AB
    AC["..."] --> AD
    AE["..."] --> AF
    AG["..."] --> AH
    AI["..."] --> AJ
    AK["..."] --> AL
    AM["..."] --> AN
    AO["..."] --> AP
    AQ["..."] --> AR
    AS["..."] --> AT
    AU["..."] --> AV
    AW["..."] --> AX
    AY["OK"] --> A
    BX["OK"] --> B
    DZ["OK"] --> DZ
    EY["OK"] --> EY
    FXY["OK"] --> FX
    GXY["OK"] --> GXY
    HXY["OK"] --> HXY
    IXY["OK"] --> IXY
    JXY["OK"] --> JXY
    KXY["OK"] --> KXY
    LXY["OK"] --> LXY
    MXY["OK"] --> MXY

Program menu: new astro weekly

graph TD
    A["Start"] --> B["NEW TIMEED"]
    B --> C["NEW ASTRO"]
    C --> D["ASTRO NIGHT"]
    D --> E["ASTRO DAILY"]
    E --> F["ASTRO WEEKLY"]
    F --> G["ASTRO YEARLY"]
    G --> H["ASTRO HOL IDAY"]
    H --> I["Enter program parameters"]

    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#fcc,stroke:#333
    style I fill:#ffc,stroke:#333

    note1["Program parameters\n- on/off: day (or days)* and on time, day (or days) and off time\n- on pulse: day (or days)* and pulse time, pulse duration (max 59 seconds)\n- off pulse: day (or days)* and pulse time, pulse duration (max 59 seconds)\n* See "Days selection" on page 25"]

Program menu: new astro yearly (or monthly)

graph TD
    A["NEW\nE MED"] --> B["ASTRO\nN I G H E"]
    C["NEW\nASTRO"] --> B
    B --> D["YEARLY\nO N - O F F"]
    D --> E["YEARLY\nPULSE ON"]
    E --> F["YEARLY\nPULSE O F F"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style D fill:#ccf,stroke:#333
    style E fill:#ccf,stroke:#333
    style F fill:#ccf,stroke:#333

How to choose the day (or days) in an astro annual program (or monthly)

graph LR
    A["Ok"] --> B["Week 1\n----/MM/yy\nOn"]
    B --> C["WEET"]
    C --> D["Week 2\nWEEK 3\nWEEK 4\nLAST"]
    D --> E["WEET"]
    E --> F["LAST\n----/MM/yy\nOn\nDAY"]
    F --> G["WEET"]
    G --> H["DATE\n----/MM/yy\nOn"]
    H --> I["WEET"]
    I --> J["WEET"]

① to set the program:

in the first, second, third, fourth or last week of the month in / the day/s (Monday, ...) of the week just specified the specified month (MM for all months) the given year (YY for all years)

Note: the on event must correspond to the off in the same day. For example, if the program includes two events on Monday and on Wednesday, then there will be two off events on Monday and on Wednesday. Otherwise ERROR 010 is signaled.

② to set the program on the last day:

---/MM/99 of all months of all years
---/V/V/99 of the specified V/V month of all years
--/MM/ZZ of all months of the specified ZZ year
---/VV/ZZ of the specified VV month of the specified ZZ year

③ to set the program on the day XX (1,2,3...):

xx/MM/99 of all months of all years
xx/4V/99 of the specified VV month of all years
xx/MM/ZZ of all months of the specified ZZ year
xx/V/V/ZZ of the specified VV month of the specified ZZ year

Program menu: new astro holiday

graph TD
    A["NEW\nLIMED"] --> B["ASTRO\ndAILY"]
    C["NEW\nASTRO"] --> B
    B --> D["ASTRO\nWEEKLY"]
    D --> E["ASTRO\nYEARLY"]
    E --> F["ASTRO\nHOLIDAY"]
    G["HOLIDAY OFF: the relay is OFF from the beginning to the end of holiday program."] --> H["Enter program parameters"]
    I["HOLIDAY ON: the relay is ON from the end of holiday program."] --> J["Enter program parameters"]

① HOLIDAY OFF: the relay is OFF from the beginning to the end of holiday program.
② HOLIDAY ON: the relay is ON from the beginning to the end of holiday program.

Program parameters

• beginning of the program
• end of the program

How to choose the day (or days) in a holiday astro program

graph LR
    A["Ok"] --> B["1 WEEK 1\n---/MM/yy\nOn"]
    B --> C["2 WEEK 2\nWEEK 3\nWEEK 4\nLAST"]
    C --> D["3 LAST\n---/MM/yy\nOn\nDAY"]
    D --> E["4 DATE\n---/MM/yy\nOn"]

① to set the program:

in the first, second, third, fourth or last week of the month in / the day/s (Monday, ...) of the week just specified the specified month (MM for all months) the given year (YY for all years)

Note: in this case, the holiday program must begin and end in the same day. Otherwise ERROR 0 10 is signaled.

② to set the program on the last day:

--/MM/99 of all months of all years
---/V/V/99 of the specified V/V month of all years
---/MM/ZZ of all months of the specified ZZ year
---/VV/ZZ of the specified VV month of the specified ZZ year

③ to set the program on the day XX (1,2,3...):

xx/MM/99 of all months of all years
xx/4V/99 of the specified VV month of all years
xx/MM/ZZ of all months of the specified ZZ year
xx/V/V/ZZ of the specified VV month of the specified ZZ year

Program menu: check

graph TD
    A["Wednesday 11/05/22 C1:46 OFF C2"] --> B["PROGRAM"]
    B -->|OK| C["PROGRAM CHECK"]
    C -->|OK| D["MEMORY 076 * 450"]
    D --> E["OK"]
    B --> F["Program"]
    C --> G["Program"]
    D --> H["Memory"]
    style A fill:#f9f,stroke:#333
    style E fill:#ccf,stroke:#333

How to check a program

① choose the channel: 1 ... 8
② choose the period: daily, weekly, annual, holiday or night (when it is a channel of astronomical type)
③ choose the type: on/off, on pulse, off pulse or a night program (only if it is a channel of astronomical type)

Note: a program requires more screens to be displayed:

• press the key ok to move from the first to the second part of the same program
• press the keys ▶ and ▶ switch from one program to another

graph TD
    A["Choose the channel"] --> B["1"]
    B --> C["OK"]
    C --> D["CHANNEL CHECK"]
    D --> E["2"]
    E --> F["CHECK NIGHT"]
    F --> G["OK"]
    G --> H["CHANNEL CHECK"]
    H --> I["3"]
    I --> J["Choose the type"]
    J --> K["3"]
    K --> L["OK"]
    L --> M["Check programs"]
    D --> N["CHANNEL CHECK"]
    N --> O["2"]
    O --> P["CHANNEL CHECK"]
    P --> Q["8"]
    Q --> R["CHANNEL CHECK"]
    R --> S["0k"]
    S --> T["CHANNEL CHECK"]
    T --> U["OK"]
    U --> V["CHANNEL CHECK"]
    V --> W["0k"]
    W --> X["CHANNEL CHECK"]
    X --> Y["0k"]
    Y --> Z["CHANNEL CHECK"]
    Z --> AA["0k"]
    AA --> AB["CHANNEL CHECK"]
    AB --> AC["0k"]
    AC --> AD["CHANNEL CHECK"]
    AD --> AE["0k"]
    AE --> AF["CHANNEL CHECK"]
    AF --> AG["0k"]
    AG --> AH["CHANNEL CHECK"]
    AH --> AI["0k"]
    AI --> AJ["CHANNEL CHECK"]
    AJ --> AK["0k"]
    AK --> AL["CHANNEL CHECK"]
    AL --> AM["0k"]
    AM --> AN["CHANNEL CHECK"]
    AN --> AO["0k"]
    AO --> AP["CHANNEL CHECK"]
    AP --> AQ["0k"]
    AQ --> AR["CHANNEL CHECK"]
    AR --> AS["0k"]
    AS --> AT["CHANNEL CHECK"]
    AT --> AU["0k"]
    AU --> AV["CHANNEL CHECK"]
    AV --> AW["0k"]
    AW --> AX["CHANNEL CHECK"]
    AX --> AY["0k"]
    AY --> AZ["CHANNEL CHECK"]
    AZ --> BA["0k"]
    BA --> BB["CHANNEL CHECK"]
    BB --> BC["0k"]
    BC --> BD["CHANNEL CHECK"]
    BD --> BE["0k"]
    BE --> BF["CHANNEL CHECK"]
    BF --> BG["0k"]
    BG --> BH["CHANNEL CHECK"]
    BH --> BI["0k"]
    BI --> BJ["CHANNEL CHECK"]
    BJ --> BK["0k"]
    BK --> BL["CHANNEL CHECK"]
    BL --> BM["0k"]
    BM --> BN["CHANNEL CHECK"]
    BN --> BO["0k"]
    BO --> BP["CHANNEL CHECK"]
    BP --> BQ["0k"]
    BQ --> BR["CHANNEL CHECK"]
    BR --> BS["0k"]
    BS --> BT["CHANNEL CHECK"]
    BT --> BU["0k"]
    BU --> BV["CHANNEL CHECK"]
    BV --> BW["0k"]
    BW --> BX["CHANNEL CHECK"]
    BX --> BY["0k"]
    BY --> BZ["CHANNEL CHECK"]
    BZ --> CA["0k"]
    CA --> CB["CHANNEL CHECK"]
    CB --> CC["0k"]
    CC --> CD["CHANNEL CHECK"]
    CD --> CE["0k"]
    CE --> CF["CHANNEL CHECK"]
    CF --> CG["0k"]
    CG --> CH["CHANNEL CHECK"]
    CH --> CI["0k"]
    CI --> CJ["CHANNEL CHECK"]
    CJ --> CK["0k"]
    CK --> CL["CHANNEL CHECK"]
    CL --> CM["0k"]
    CM --> CN["CHANNEL CHECK"]
    CN --> CO["0k"]
    CO --> CP["CHANNEL CHECK"]
    CP --> CQ["0k"]
    CQ --> CR["CHANNEL CHECK"]
    CR --> CS["0k"]
    CS --> CT["CHANNEL CHECK"]
    CT --> CU["0k"]
    CU --> CV["CHANNEL CHECK"]
    CV --> CW["0k"]
    CW --> CX["CHANNEL CHECK"]
    CX --> CY["0k"]
    CY --> CZ["CHANNEL CHECK"]
    CZ --> DA["0k"]
    DA --> DB["CHANNEL CHECK"]
    DB --> DC["0k"]
    DC --> DD["CHANNEL CHECK"]
    DD --> DE["0k"]
    DE --> DF["CHANNEL CHECK"]
    DF --> DG["0k"]

• 47 - User manual memo BUS BT2

Program menu: modify

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OR C2"] --> B["Program"]
    B -->|OK| C["Program MOD IFY"]
    B -->|OK| D["Program"]
    C -->|OK| E["Memory 076 * 450"]
    D --> F["Indication of the memory space (76 of 450)"]
    E --> G["End"]
    F --> G

How to modify or to delete a program

① choose the channel: 1 ... 8
② choose the period: daily, weekly, annual, holiday or night (only if it's an astronomical channel)
③ choose the type: on/off, on pulse, off pulse or a night program (only if it's an astronomical channel)

Note: a program requires more screens to be displayed:

• press the key Ok to move from the first to the second part of the same program
• press the keys ▶ and ▶ey to switch from one program to another

To modify: press for a long time (at least 3 seconds) the key OK

To delete: press for a long time and simultaneously the keys ok and ←

graph TD
    A["Choose the channel"] --> B["1"]
    B --> C["MOD IFY"]
    C --> D["CHANNEL 1"]
    D --> E["MOD IFY"]
    E --> F["CHANNEL 2"]
    F --> G["MOD IFY"]
    G --> H["CHANNEL 3"]
    H --> I["MOD IFY NIGHT"]
    I --> J["OK"]
    J --> K["MOD IFY"]
    K --> L["OK"]
    L --> M["Modify/Delete programs"]
    N["Choose the period"] --> O["2"]
    O --> P["MOD IFY"]
    P --> Q["OK"]
    Q --> R["Modify/Delete programs"]
    S["Choose the type"] --> T["3"]
    T --> U["OK"]
    U --> V["Modify/Delete programs"]
    W["dA ILY ON - OFF"] --> X["OK"]
    Y["dA ILY PULSE ON"] --> Z["OK"]
    AA["dA ILY PULSE OFF"] --> AB["OK"]
    AC["MOD IFY HOLIDAY"] --> AD["OK"]

graph TD
    A["Program menu: copy"] --> B["Wednesday 11/05/22 C1 OFF 12:00"]
    B --> C["PROGRAM"]
    C --> D["OK"]
    D --> E["PROGRAM COPY"]
    E --> F["OK"]
    F --> G["Select the origin channel"]
    G --> H["OK"]
    H --> I["Select the destination channel*"]

"Copy" menu allows copying the programs of a channel (origin channel) on one or more channels (channels destination). Note: the programs previously stored on the destination channels will be deleted.

* See "Channels selection" on page 25

Program menu: delete

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B{Selection of channels to be delete*}
    B -->|Yes| C["Program"]
    B -->|No| D["Program DELETE"]
    C --> E["OK"]
    D --> F["OK"]
    E --> G["Back to Program"]
    F --> H["Back to Program DELETE"]

"Delete" menu is used to delete all stored programs on one or more channels.

Note: to delete one single program to see "modify" mode (see page 48).

* See "Channels selection" on page 25

BLUETOOTH MENU

The Bluetooth menu allows you to enable or disable the Bluetooth interface and change the password used to associate your device (smartphone or tablet) to memo BUS BT2.

To enable the Bluetooth interface:

① set Bluetooth ON

Warning: to make the Bluetooth interface active, the memo BUS BT2 must be mains powered and connected to the main page (see page 8). The Bluetooth interface is therefore not active when browsing through the memo BUS BT2 menus.

To disable the Bluetooth interface:

② set Bluetooth OFF

In this way no communication can take place between your device and memo BUS BT2. Memo BUS BT2 works with the settings and programs already set; any changes or creation of new programs must be made by acting directly on the keyboard of memo BUS BT2.

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["Change to blue Bluetooth"]
    B --> C{Password change}
    C -->|Yes| D["Change to blue Bluetooth ON"]
    C -->|No| E["Change to blue Bluetooth OFF"]
    D --> F["Change to blue Bluetooth ON"]
    E --> G["Change to blue Bluetooth OFF"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#ffc,stroke:#333

Changing the password

The password is the 6-digit code required by the app for the first association between memo BUS BT2 and smartphone

The pre-set password is 123456 but can be changed.

1A Press the key of that at least 3 seconds until the first digit of the password starts to flash.

⑪ Set the first digit with the keys and keys and press the key ok to confirm and move to the next digit.

① Repeat step ② to set all 6 digits. After confirming the last digit, the display shows the new password.

Press the key ← to exit the menu.

• 53 - User manual memo BUS BT2

BUS MENU

Memo BUS BT2 enables you to control 8 independent channels but It has 2 relays (for channel 1 and 2). With additional RX4-8A and RX7-5A modules It's possible to add some relays and associate these relays to the channels of memo BUS BT2. The remote actuators and memo BUS BT2 all together are named "network".

Bus menu allows you to configure or to test the connection between memo BUS BT2 and the actuators ①② or share programs among several memo BUS BT2 connected to the network ③④.

① configure the outputs, to associate the channels of memo BUS BT2 to the channels (relays) of the remote actuators
② to test the connection, to verify the correct association among the channels of memo BUS BT2 and the channels (relays) of the actuators
③ to send programs to the other memo BUS BT2 connected to the network
④ to receive the programs from another memo BUS BT2 connected to the network

Note: during the configuration or channels test and during the reception of programs on the bus the switchings of all channels are disabled.

graph TD
    A["Wednesday 11/05/22 C1 OFF 12:00 OFF C2"] --> B["←"]
    B --> C["bus"]
    C --> D["OK"]
    D --> E["CONF OUT"]
    E --> F["OK"]
    F --> G["TEST OUT"]
    G --> H["PRG SEND"]
    G --> I["PRG RECEP"]

Simple network configuration (one memo BUS BT2, one or more remote actuators)

1. On the remote actuator: activate "Channel configuration" mode (see the documentation supplied with the actuator)
2. On the memo BUS BT2:
   2.1Select CONF OUT and confirm with 📄Memo BUS BT2 verifies the uniqueness of its address and when the test is successful it displays AddR bus OK
   2.2 Press to continue. Choose with the keys and the channel to configure
   2.3 Press the key ok for at least 3 seconds. After configuration, the channel flashes (2 times) and the message appears.

graph TD
    A["English"] --> B["..."]
    B --> C["CONF OUT"]
    C --> D["AddR BUS CHECK"]
    D --> E["CONF OUT"]
    E --> F["3s"]
    F --> G["CONF OUT DONE"]
    C --> H["AddR BUS OK"]
    H --> I["通道 2"]
    E --> J["通道 3"]
    J --> K["通道 2"]
    style A fill:#f9f,stroke:#333
    style G fill:#ccf,stroke:#333

To delete the configuration of a channel, select the channel (steps 2.1 and 2.2) and press simultaneously for 3 seconds the keys ← and ok.

Complex network configuration (several memo BUS BT2, one or more remote actuators)

About the configuration of the network in the case of several connected memo BUS BT2, contact Vemer Technical Support (tel. [phone]).

Connection test

graph TD
    A["..."] --> B["tEST OUT"]
    B --> C["OK"]
    C --> D["tEST OUT OFF"]
    D --> E["OK"]
    E --> F["OFF"]
    F --> G["ON"]
    G --> H["OFF"]
    H --> I["CHANNEL 2"]
    H --> J["CHANNEL 2"]
    H --> K["CHANNEL 2"]
    B --> L["CHANNEL 2"]
    D --> M["CHANNEL 3"]
    F --> N["CHANNEL 2"]
    G --> O["CHANNEL 2"]
    H --> P["CHANNEL 2"]

The test is used to verify proper communication between memo BUS BT2 and the remote actuator. It's possible to test multiple channels simultaneously*.

During the test a series of on-off commands are sent every 5 seconds to the relay in test. It's possible to exit the test:

- by pressing the key 0k to exit the test and test another channel

- by pressing the key ↩ to exit the test and return to the main page

* See "Channels selection" on page 25

Programs copy on the bus

This function allows you to transfer programs from a memo BUS BT2 to other memo BUS BT2 connected to the same network. It's possible:

• to force the transfer to all other memo BUS BT2 connected to the network (PRG SEND ALL)
• to transfer programs only to memos BUS BT2 on which the reception mode* has been activated (PRG SEND SELECT

graph LR
    A["English"] --> B["PRG SEND"]
    B --> C["PRG SEND ALL"]
    C --> D["ALL CONF IRM"]
    D --> E["WRITE"]
    D --> F["only for PRG SEND ALL"]
    style A fill:#f9f,stroke:#333
    style E fill:#ccf,stroke:#333

It's not possible to select the programs to copy, the entire memory area is copied. The programs previously stored on memo BUS BT2 destination will be deleted.

Warning. The function PRG SEND ALL overwrites the programs of all memo BUS BT2 connected to the network: use with caution.

\* Reception programs on the bus

Activate reception mode (PRG RECEP) to receive the programs from another connected memo BUS BT2 (that transmits programs via the function PRG SEND SELECT). The memo BUS BT2 remains in reception for 1 minute and this condition is signaled from the flashing WRITE.

graph TD
    A["..."] --> B["PRG RECEP"]
    B --> C["OK"]
    C --> D["PRG RECEP WRITE"]
    D --> E["PRG RECEP DONE"]

In the case where the reception is not successful the message PRG RECEP ERROR is displayed.

Reception programs can take place at any time (even if the reception mode is not activated). This happens if another memo BUS BT2 connected to the network transmits by using the function PRG SEND ALL.

SYNC MENU

SYNC menu allows you to enable or disable the presence of the additional GEO-1 module.

GEO-1 is a GPS module that allows you to capture the information of date, time and location from satellites and then to transfer them to memo BUS BT2. With GEO-1 connected and enabled, memo BUS BT2 synchronizes date, time and location (latitude, longitude) every 30 minutes, signaling synchronization with a flashing symbol (2 times). In this way the time of memo BUS BT2 is always synchronized and are canceled the drifts due to the tolerance of the oscillator which marks the time base.

To enable the presence of GEO-1:

① set SYNC GPS

It's also possible to display the status of the connection to GEO-1 (ok, waiting, error).

From the status page, while by pressing the key ok for at least 3 seconds it's possible to force data sending from GEO-1 to memo BUS BT2 (the display shows WR IT COMMUN ICA).

To disable the presence of GEO-1:

② set SYNC OFF

If GPS module is not connected, it's advisable to set SYNC OFF to avoid displaying unnecessary information message SYNC ERR on the start page of memo BUS BT2 (see page 8).

Set SYNC dCF:

③ Set SYNC dCF (NOT SUPPORTED)

Note: the internal oscillator which marks the time base allows memo BUS BT2 to maintain the updated time even without the presence of GEO-1. In this case clock accuracy is ± 0.5 seconds per day.

graph TD
    A["Wednesday 11/05/22 C10FF 12:00 OFF C2"] --> B["Sync MENU"]
    B --> C{OK}
    C --> D["SYNC OFF 12:00"]
    D --> E["SYNC OFF 12:00"]
    E --> F["SYNC GPS 12:00"]
    F --> G["SYNC dCF 12:00"]
    G --> H["SYNCSYNC status"]

    I["SYNCSYNC status"] --> J["a) GEO-1 module has hooked a sufficient number of satellites for a correct synchronization. Displays the number of hooked satellites (10 in this case)."]
    K["b) GEO-1 module is not properly connected to memo BUS BT2. Check the wiring diagrams in this manual."]

a) GEO-1 module has hooked a sufficient number of satellites for a correct synchronization. Displays the number of hooked satellites (10 in this case).
b) GEO-1 module is not properly connected to memo BUS BT2. Check the wiring diagrams in this manual.
c) GEO-1 module has not hooked a sufficient number of satellites for a correct synchronization. If this condition persists for more than a few hours, it's advisable to move GEO-1 module in a better position to receive (outside the building).

HOUR COUNTER MENU

“Hour counter” menu allows you to display the hours of use (relay on) of connected loads. The device has 8 counters, one for each channel. The maximum value of the counters is 99999 hours (about 11 years); reached the maximum limit, the counter resets automatically.

To reset a counter:

1. select the desired channel
2. press the key ok for 3 seconds until the display shows "HOUR CNE DELETE ?
3. confirm by pressing Ok (press ←) exit without zeroing)

Note: it's possible to reset all counters contemporary from the "Reset" menu (see page 64).

graph TD
    A["Wednesday 11/05/22 C10FF 12:00 OFF C2"] --> B["Clock with LCD screen"]
    B --> C{OK}
    C -->|Yes| D["HOUR CNT 0002 10h CHANNEL"]
    C -->|No| E["OK"]
    D --> F["3s CHANNEL 000053h CHANNEL"]
    E --> G["OK"]
    F --> H["HOUR CNT 0006 12h CHANNEL"]
    G --> I["OK"]
    H --> J["HOUR CNT 000004h CHANNEL"]
    I --> K["OK"]
    J --> L["HOUR CNT DELETE CHANNEL ?"]

• 63 - User manual memo BUS BT2

RESET MENU

"Reset" menu allows you to restore the initial state of the device.

Available resets:

① Settings reset: deletes all the carried out settings (except the language, PIN and the channel settings on the BUS)
② Time programs reset: deletes all saved time programs
③ Holiday programs reset: deletes all saved holiday programs
④ Astro programs reset: deletes all saved astronomical programs
⑤ Counter reset: resets the counters of all channels
⑥ All reset: carries out all the above described resets and deletes the language, PIN protection and the channels settings on the bus

There is also another reset, of hardware type, which allows you to reset the device in case it responds to the pressing of the keys so unexpectedly, without losing the carried out settings/programs (only the date and the time are lost).

To carry out a hardware reset:

1. press the key "R" with a sharp object

The hardware reset is also useful when you forget PIN protection. Reset, in fact, unlocks the keyboard for 3 minutes, the necessary time to access the appropriate menu and check/disable PIN.

graph TD
    A["Wednesday 11/05/22 C10FF 12:00 OFF C2"] --> B["Reset"]
    B --> C["OK"]
    C --> D["Reset SETT INGS"]
    D --> E["OK"]
    E --> F["Reset CONF IRM"]
    G["Reset PRG TIME"] --> H["3"]
    I["Reset HOL IDAY"] --> J["4"]
    K["Reset PRG ASTRO"] --> L["5"]
    M["Reset HOUR CNT"] --> N["6"]
    O["Reset ALL"] --> P["7"]

FIRMWARE MENU

This menu shows the firmware installed in the device, where:

022 is the revision index

05 is the month

20 is the day

graph TD
    A["Wednesday 11/05/22 C10FF 12:00 OFF C2"] --> B["Timer"]
    B --> C["Ver FW 022 05-20"]
    C --> D["Control Signals"]
    D --> E["Return to First Call"]

ERROR SIGNALS

When setting up programs, in case of a discrepancy, the following error messages can occur:

ERROR 001 On and off events with different frequency (each on event must have an off event)

ERROR 002 On and off concomitant events of the same program

ERROR 003 Two or more consecutive on events of the same program / Two or more consecutive off events of the same program

ERROR 004 Invalid date

ERROR 005 Insufficient memory

ERROR 006 Attempt to set an on pulse on a channel where is already stored an off pulse (see page 27)

ERROR 007 Attempt to set an off pulse on a channel where is already stored an on impulse (see page 27)

ERROR 008 Attempt to set an on holiday program on a channel where is already stored an off holiday program (see page 27)

ERROR 009 Attempt to set a holiday off program on a channel where a holiday on program is already stored (see page 27)

ERROR 010 Attempt to set an annual program of on and off events on different days

ERROR 011 Attempt to set an astro program on a channel of time (see page 27)

ERROR 012 Attempt to set a time program on a channel of time type (see page 27)

ERROR 030 Error accessing memory *

* In this case, carry out a hardware reset (see page 64). If the error persists, contact Vemer technical support (tel.[phone]).

BATTERY MANAGEMENT

When the battery is close to empty, on the first line of the display appears battery. In this case, the battery must be replaced as soon as possible.

To replace the battery:

• remove the cover of battery compartment
• replace the battery with one of 3V CR14250 type and put the cover

Warning: do not use metal objects (such as screwdrivers) to remove the battery because this may cause the power reserve to be canceled, resulting in a loss of date and time.

Warning: in order not to lose the programming steps and carried out settings, it is necessary to ensure that the time for the battery replacement doesn't exceed 60 seconds (in absence of power by means).

It is necessary to remove the batteries before the instrument is scrapped.

In case of replacement, dispose of the batteries in the appropriate places separate waste collection containers.

REFERENCE STANDARDS

EU CONFORMITY DECLARATION

Vemer declares that the device complies with the EU directive 2014/53/EU (RED) with reference to the following standards: EN 60730-2-7, ETSI EN 301 489-1, ETSI EN 301 489-17, ETSI EN 300 328

The complete text of EU conformity declaration is available at the Internet address www.vemer.it.

information to users pursuant to art. 14 of the directive 2012/19 / EU of the european parliament and of the council of 4 july 2012 on waste electrical and electronic equipment (WEEE)

If the crossed-out bin symbol appears on the equipment or packaging, this means the product must not be included with other general waste at the end of its working life.

The user must take the worn product to a sorted waste center, or return it to the retailer when purchasing a new one.

Products for disposal can be consigned free of charge (without any new purchase obligation) to retailers with a sales area of at least 400 m ^2 , if they measure less than 25 cm.

An efficient sorted waste collection for the environmentally friendly disposal of the used device, or its subsequent recycling, helps avoid the potential negative effects on the environment and people's health, and encourages the re-use and/or recycling of the construction materials.

Vemer S.p.A.

I - 32032 Feltre (BL) • Via Camp Lonc, 16

e-mail: [e-mail] - web site: www.vemer.it

07-2024