Phoenix Contact EEM-EM157-EE - Measurement

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Product Type MID Energy Meter (Single-Phase)
Brand Phoenix Contact
Model EEM-EM157-EE
Order No. 1311993
Measurement Type Bidirectional (import/export)
Rated Voltage (UN) 230 V AC
Voltage Range 80%...120% UN (184...276 V AC)
Frequency 50 Hz
Maximum Current (Imax) 45 A (direct measurement)
Accuracy (Active Energy) Class B per EN 50470-3 / Class 1 per EN 62053-21
Accuracy (Reactive Energy) Class 2 per EN 62053-23
MID Compliance Yes (Directive 2014/32/EU)
Communication Interface RS-485, Modbus/RTU protocol
Baud Rate 1200...19200 bps (configurable)
Pulse Outputs 2 passive opto-isolated outputs; 1 configurable, 1 fixed (1000 imp/kWh)
Display Backlit LCD
Mounting DIN rail (DIN 43880)
Protection Degree (Front) IP51 (when installed in IP51 cabinet or higher)
Protection Degree (Connection) IP20
Operating Temperature -40 °C to 70 °C
Storage Temperature -40 °C to 70 °C
Power Consumption 10 VA (2 W)
Safety Class II (double insulation)
Pollution Degree 2
Flame Resistance (Housing) UL94 V0
Maximum Cable Cross-Section 10 mm² (measurement), 1.5 mm² (other)
Maintenance Clean with damp cloth; switch off before cleaning; no abrasive agents
Repairability Repairs only by manufacturer; no user serviceable parts

Frequently Asked Questions - EEM-EM157-EE Phoenix Contact

What is the intended use of the EEM-EM157-EE energy meter?
The EEM-EM157-EE is an MID-approved single-phase energy meter intended for measuring electrical characteristic values in applications that meet the specified technical data. It can measure voltage, current, frequency, power, power factor, active and reactive energy, and is suitable for billing purposes with its MID certification.
Does the EEM-EM157-EE have MID approval?
Yes, the device complies with Directive 2014/32/EU (MID). The MID approval covers only total import active energy and total export active energy for billing. Other functions are informative and not part of the MID conformity.
How do I configure the Modbus address on the EEM-EM157-EE?
The Modbus address can be set via the setting mode on the device or via the RS-485 interface. In setting mode, navigate to the 'Id' parameter and use the Next/Enter key to change the address (range 1...247, default 1). Alternatively, use Modbus register 40021 to set the meter ID.
What is the maximum current the EEM-EM157-EE can measure directly?
The meter supports direct measurement up to 45 A (Imax). It is not suitable for use with current transformers or voltage transformers.
Can the EEM-EM157-EE be used with current transformers?
No, the device is intended for direct measurement only. Using it with current transformers is considered foreseeable misuse and may damage the device.
How do I reset the demand information on the EEM-EM157-EE?
Demand information can be reset via the Modbus register 461457 (hex 0xF010). Writing 0x0000 to this register resets all demand values. Alternatively, the demand period can be configured via register 40003.
What types of pulse outputs does the EEM-EM157-EE have?
The device has two passive opto-isolated pulse outputs. Pulse output 1 is configurable (energy type and constant) and can be set via Modbus. Pulse output 2 is fixed at total kWh with a constant of 1000 imp/kWh and pulse width of 60 ms.
What is the operating temperature range of the EEM-EM157-EE?
The operating temperature range is -40 °C to 70 °C (-40 °F to 158 °F). Storage temperature is the same. Humidity should be ≤90%, non-condensing.
How should I clean the EEM-EM157-EE?
Switch off the device before cleaning. Use a suitable damp cloth only. Do not use abrasive agents or solvents. Ensure no moisture enters the device.
Can I repair the EEM-EM157-EE myself?
No, repairs may only be carried out by the manufacturer. Do not attempt to repair the device yourself. If defective, contact Phoenix Contact. Unauthorized repairs can endanger safety and void warranty.

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USER MANUAL EEM-EM157-EE Phoenix Contact

MID energy meters

User manual

UM EN EEM-EM157-EE

Order No. 1311993

User manual MID energy meters

UM EN EEM-EM157-EE, Revision 02

2023-07-01

This user manual is valid for:

Designation Order No.

EEM-EM157-EE 1311993

Table of contents

1 For your safety....5

1.1 Labeling of warning notes.... 5

1.2 Qualification of users....5

1.3 Field of application of the product.... 5

1.3.1 Intended use 5

1.3.2 Foreseeable misuse 5

1.3.3 Product changes 6

1.4 Safety notes 6

2 Device description....7

2.1 Scope of supply....7

2.2 Operating and indication elements 8

2.3 MID conformity 8

3 Quick start guide....8

4 Mounting and installation....9

4.1 Snapping the device onto the DIN rail....9

4.2 Network type 10

4.3 Modbus/RTU installation 11

4.4 Sealing 12

5 Configuration....12

5.1 Setting mode 12

5.2 Opening setting mode 13

5.3 Parameters in setting mode.... 13

5.4 Leave setting mode 13

6 Operation....14

6.1 Start mode....14

6.2 Operating mode.... 14

6.3 Communication 15

6.4 Outputs....16

7 Technical data....16

7.1 Dimensions....16

7.2 Technical data....17

MID energy meters

7.3 MID Data 18

8 Modbus register....20

8.1 Measuring values ...... 20

8.2 Device information and configuration 22

A Appendixes....25

A 1 List of figures ...... 25

A 2 List of tables ...... 27

1 For your safety

Read this user manual carefully and keep it for future reference.

1.1 Labeling of warning notes

Phoenix Contact EEM-EM157-EE - Labeling of warning notes - 1

This symbol indicates hazards that could lead to personal injury.

There are three signal words indicating the severity of a potential injury.

DANGER

Indicates a hazard with a high risk level. If this hazardous situation is not avoided, it will result in death or serious injury.

WARNING

Indicates a hazard with a medium risk level. If this hazardous situation is not avoided, it could result in death or serious injury.

CAUTION

Indicates a hazard with a low risk level. If this hazardous situation is not avoided, it could result in minor or moderate injury.

Phoenix Contact EEM-EM157-EE - CAUTION - 1

This symbol together with the NOTE signal word warns the reader of actions that might cause property damage or a malfunction.

Phoenix Contact EEM-EM157-EE - CAUTION - 2

Here you will find additional information or detailed sources of information.

1.2 Qualification of users

The use of products described in this user manual is oriented exclusively to:

– Electrically skilled persons or persons instructed by them. The users must be familiar with the relevant safety concepts of automation technology as well as applicable standards and other regulations

– Qualified application programmers and software engineers. The users must be familiar with the relevant safety concepts of automation technology as well as applicable standards and other regulations.

1.3 Field of application of the product

1.3.1 Intended use

MID energy meters may only be used to measure electric characteristic values in applications that meet the specified technical data.

1.3.2 Foreseeable misuse

MID energy meters with direct measurement are not suitable for use with voltage transformers or current transformers.

1.3.3 Product changes

Changes or modifications to hardware and software of the device are not permitted.

Incorrect operation or modifications to the device can endanger your safety or damage the device. Do not repair the device yourself. If the device is defective, please contact Phoenix Contact.

1.4 Safety notes

The "exclamation mark" on the device labeling means that you need to:

Read the installation note in its entirety. Follow the installation note to avoid impairing the intended protection.

  • The installation, operation, and maintenance work must be completed by a qualified electrician. Follow the installation instructions as described. When installing and operating the device, the applicable regulations and safety directives (including national safety directives), as well as general technical regulations must be observed.
  • Use an appropriate voltage measuring device to ensure that no voltage is present.
  • Install the device in accordance with instructions described in the installation notes. Accessing circuits within the device is prohibited.
    – Repairs may only be carried out by the manufacturer.
  • Only clean the device with a suitable damp cloth. Switch the device off before cleaning and do not use abrasive agents or solvents.
  • Ensure that all connection terminals are connected correctly to prevent the device from being damaged.
  • Observe the maximum permissible voltages (276V AC) and network frequency (50Hz).

2 Device description

The device is a single-phase energy meter with backlight LCD display. It can measure voltage, current, frequency, power, power factor, active and reactive energy, imported and exported energy, etc.

The energy values provided by the energy meters can be used for billing purposes with MID approval.

The device supports maximum 45A direct measurement, with 2 pulse outputs and RS-485 interface.

2.1 Scope of supply

Figure 2-1 Scope of supply
1 2

1 Energy meter, certified in accordance with MID directive 2 2x covers

2.2 Operating and indication elements

Figure 2-2 Operating and indication elements
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

1 LCD display
2 Modbus interface
3 Neutral conductor input↑ and output↓
4 Next/Enter key
5 Pulse LED
6 Pulse outputs
7 Line conductor input↑ and output↓

2.3 MID conformity

– MID conformity refers to compliance with Directive 2014/32/EU.
- In terms of MID conformity, only Total import active energy and Total export active energy is calibrated.
- The device contains additional functions that are informative and do not play a role in the sense of MID conformity.
- The product label on the side seals the device in terms of MID conformity.
- After installation and commissioning, the covers with sealing must be applied. (see Section 4.4, "Sealing").

3 Quick start guide

After the voltage is applied, the device enters start mode. It will do self-test and then display device information.

Following start mode, the device automatically switches to operating mode default display energy values.

Navigation

Next/Enter key – In operating mode:Scroll through the displayed pagesEnter setting mode: long press *In setting mode: Change setting valueMove to next setting menu itemEnter edit mode: long press *

* Long press means to keep pressing the key for at least 3 seconds.

Configuring parameters

Parameters are configured in setting mode, see Section 5.1, "Setting mode"

1 Press Next/Enter key for at least 3 seconds to enter setting mode.
2 Configure the parameters, see Section 5.3, "Parameters in setting mode"

4 Mounting and installation

4.1 Snapping the device onto the DIN rail

The device is snapped onto a DIN rail in the control cabinet. The measuring position can be freely selected, but will be determined by the readability of the LCD.

Figure 4-1 Snapping the device onto the DIN rail
Phoenix Contact EEM-EM157-EE - Snapping the device onto the DIN rail - 1

natural_image Technical diagram showing two mechanical assembly configurations with directional arrows indicating motion (no text or symbols)

4.2 Network type

Figure 4-2 Connection
N RS-485 G B- A+ F= T10 KWAHz 20V/12.5-8/50C C#33# Ort No: 131120 FBL/PUS-FE 1000mA/W 20V/12.5-8/50C Pulse output Pulse 1+ Pulse - Pulse 2+ 45A

  1. L input↑
  2. L output↓
  3. Neutral conductor input↑ and output↓
  4. Neutral conductor input↑ and output↓
  5. Pulse output 2+
  6. Pulse output -
  7. Pulse output 1+
  8. RS-485 GND
  9. RS-485 B-
  10. RS-485 A+

4.3 Modbus/RTU installation

Figure 4-3 Modbus/RTU network
Phoenix Contact EEM-EM157-EE - Modbus/RTU installation - 1

flowchart
graph TD
    COM["COM"] --> RS-485["RS-485"]
    RS-485 --> USB["USB"]
    USB --> Display["Computer"]
    RS-485 --> RS-4851["RS-485"]
    RS-4851 --> PSI-REP["PSI-REP Repeater"]
    PSI-REP --> Display
    Display --> RT1["RT 120 Ω"]
    RT1 --> RS-4851
    RS-4851 --> RS-4852["RS-485"]
    RS-4852 --> RS-4853["RS-485"]
    RS-4853 --> RS-4854["RS-485"]
    RS-4854 --> RS-4855["RS-485"]
    RS-4855 --> RS-4856["RS-485"]
    RS-4856 --> RS-4857["RS-485"]
    RS-4857 --> RS-4858["RS-485"]
    RS-4858 --> RS-4859["RS-485"]
    RS-4859 --> RS-4860["RS-486"]
    RS-4860 --> RS-4861["RS-486"]
    RS-4861 --> RS-4862["RS-486"]
    RS-4862 --> RS-4863["RS-486"]
    RS-4863 --> RS-4864["RS-486"]
    RS-4864 --> RS-4865["RS-486"]
    RS-4865 --> RS-4866["RS-486"]
    RS-4866 --> RS-4867["RS-486"]
    RS-4867 --> RS-4868["RS-486"]
    RS-4868 --> RS-4869["RS-486"]
    RS-4869 --> RS-4870["RS-486"]
    RS-4870 --> RS-4871["RS-486"]
    RS-4871 --> RS-4872["RS-486"]
    RS-4872 --> RS-4873["RS-486"]
    RS-4873 --> RS-4874["RS-486"]
    RS-4874 --> RS-4875["RS-486"]
    RS-4875 --> RS-4876["RS-486"]
    RS-4876 --> RS-4877["RS-486"]
    RS-4877 --> RS-4878["RS-486"]
    RS-4878 --> RS-4879["RS-486"]
    RS-4879 --> RS-487A["RS-486A"]
    RS-487A --> RS-487B["RS-486B"]
    RS-487B --> RS-487C["RS-486C"]
    RS-487C --> RS-487D["RS-486D"]
    RS-487D --> RS-487E["RS-486E"]
    RS-487E --> RS-487F["RS-486F"]
    RS-487F --> RS-487G["RS-486G"]
    RS-487G --> RS-487H["RS-486H"]
    RS-487H --> RS-487I["RS-486I"]
    RS-487I --> RS-487J["RS-486J"]
    RS-487J --> RS-487K["RS-486K"]
    RS-487K --> RS-487L["RS-486L"]
    RS-487L --> RS-487M["RS-486M"]
    RS-487M --> RS-487N["RS-486N"]
    RS-487N --> RS-487O["RS-486O"]
    RS-487O --> RS-487P["RS-486P"]
    RS-487P --> RS-487Q["RS-486Q"]
    RS-487Q --> RS-487R["RS-486R"]
    RS-487R --> RS-487S["RS-486S"]
    RS-487S --> RS-487T["RS-486T"]
    RS-487T --> RS-487U["RS-486U"]

4.4 Sealing

1 Insert the upper cover (A).
2 Insert the seal cord through the hole on the device (B).
3 Tighten the cord so that the seal is located directly on the upper cover.
4 Repeat these steps for the lower cover.

Figure 4-4 Sealing
A B C

5 Configuration

This section describes how you can access the relevant setting mode and configure the parameters, e.g. the parameters of the integrated communication interface.

5.1 Setting mode

To scroll through setting menu items:

1 Press Next/Enter key.

To change the displayed value:

1 Keep pressing Next/Enter key for at least 3 seconds to enter edit mode. The value flashes.
2 Press Next/Enter key to change setting value.
3 Wait for 4 seconds to save current setting value of current setting menu item. Next setting value flashes automatically if there is more than one value in the setting menu item.

4 After all setting values of current setting menu item have been saved automatically, it exits edit mode and no value flashes.

Figure 5-1 To change the displayed values
Phoenix Contact EEM-EM157-EE - Setting mode - 1

flowchart
graph TD
    A["1d 001"] -->|Next/Enter key\nEnter edit mode: long press| B["1d 001"]
    B -->|Next/Enter key\nChange current setting value| C["1d 002"]
    C -->|Wait for 4 seconds\nSave current setting value automatically| D["1d 002"]

5.2 Opening setting mode

Press Next/Enter key for at least 3 seconds to enter setting mode.

5.3 Parameters in setting mode

The following display pages are available.

To scroll through setting menu items or change displayed values, see Section 5.1, "Setting mode".

Figure 5-2 Setting mode
id 001 Set RS485 address Range: 1...247 Default 1 Next/Enter key b 2400 Set baud rate Range: 1200, 2400, 4800, 9600, 19200 Default 9600 Next/Enter key Prty n Set parity Range: none, even, odd Default none

* Other parameters can be set via RS-485 Modbus RTU communication.

5.4 Leave setting mode

If there is no operation in setting mode for more than 10 seconds, it will back to operating mode default display automatically.

6 Operation

6.1 Start mode

After the voltage is applied, the device enters start mode. It will do self-test and then display device information.

Figure 6-1 Full screen
8888.8.8 KVAH ΣT12

Table 6-1 Display pages: Start mode

Menu item Description
Display segments All display segments
0201.01 Software version information (subject to in kind)

6.2 Operating mode

Following start mode, the device automatically switches to operating mode default display energy page. The following display pages are shown in operating mode.

To scroll through the displayed pages, press Next/Enter key.

Figure 6-2 Operating mode
Phoenix Contact EEM-EM157-EE - Operating mode - 1

other | Component | Next/Enter Key | Value | | :--- | :--- | :--- | | Total active energy | Next/Enter key | 0004.78±0.98 | | Total active energy | Imported active energy | 0002.45±1.1 | | Total active energy | Exported active energy | 0002.32±1.1 | | Active power | Next/Enter key | 22.102±1.6 | | Active power | Current | 20.18+ | | Voltage | Next/Enter key | 2.198< | | Frequency | Next/Enter key | F 5000 | | Frequency | Power factor | PF 100 | | Modbus address | Next/Enter key | Id 001 | | Software version | Next/Enter key | 020.105 | | Software version | Parity | Prty n | | Modbus address | Next/Enter key | b 2400 | | Modbus address | Parity | b 2400 (Default of Baud rate:9600 bps) | Next/Enter key: Next/Enter key Next/Enter key: Next/Enter key

6.3 Communication

The RS-485 interface is used for the local remote readout with the Modbus/RTU protocol. During this process, the measuring device is the server and the PC or controller is the client. Connect a terminal resistance RT=120Ω (0.25W min.) at the start and end of the network. The maximum length for transmission is 1000m at a speed of 1200 bps. A maximum of 32 electrical nodes can be connected, including the controller. Broadcast mode (address 0) is supported

Table 6-2 Setting range and default settings of Modbus RTU communication

Parameters Setting range Default settings
Address 1...247 1
Baud rate 1200 bps, 2400 bps,4800bps, 9600 bps,19200 bps9600
Parity None, even, odd none
Stop bit * 1, 21

* For stop bit, it can't be configured directly in setting mode on the device, but can be set via RS-485 interface.

Figure 6-3 Modbus/RTU network
Phoenix Contact EEM-EM157-EE - Communication - 1

flowchart
graph TD
    COM["COM"] --> RS-485["RS-485"]
    RS-485 --> USB["USB"]
    USB --> RT1["RT 120 Ω"]
    RT1 --> RS-485
    RS-485 --> RS-485A["A"]
    RS-485 --> RS-485B["B"]
    RS-485 --> RS-485C["RS-485"]
    RS-485 --> RS-485D["RS-485"]
    RS-485 --> RS-485E["RS-485"]
    RS-485 --> RS-485F["RS-485"]
    RS-485 --> RS-485G["RS-485"]
    RS-485 --> RS-485H["RS-485"]
    RS-485 --> RS-485I["RS-485"]
    RS-485 --> RS-485J["RS-485"]
    RS-485K["RS-485"] --> RT1
    RS-485K --> RT2
    RS-485K --> RT3
    RS-485K --> RT4
    RS-485K --> RT5
    RS-485K --> RT6
    RS-485K --> RT7
    RS-485K --> RT8
    RS-485K --> RT9
    RS-485K --> RT10
    RS-485K --> RT11
    RS-485K --> RT12
    RS-485K --> RT13
    RS-485K --> RT14
    RS-485K --> RT15
    RS-485K --> RT16
    RS-485K --> RT17
    RS-485K --> RT18
    RS-485K --> RT19
    RS-485K --> RT20
    RS-485K --> RT21
    RS-485K --> RT22
    RS-485K --> RT23
    RS-485K --> RT24
    RS-485K --> RT25
    RS-485K --> RT26
    RS-485K --> RT27
    RS-485K --> RT28
    RS-485K --> RT29
    RS-485K --> RT30
    RS-485K --> RT31
    RS-485K --> RT32
    RS-485K --> RT33
    RS-485K --> RT34
    RS-485K --> RT35
    RS-485K --> RT36
    RS-485K --> RT37
    RS-485K --> RT38
    RS-485K --> RT39
    RS-485K --> RT40
    RS-485K --> RT41
    RS-485K --> RT42
    RS-485K --> RT43
    RS-485K --> RT44
    RS-485K --> RT45
    RS-485K --> RT46
    RS-485K --> RT47
    RS-485K --> RT48
    RS-485K --> RT49
    RS-485K --> RT50
    RS-485K --> RT51
    RS-485K --> RT52
    RS-485K --> RT53
    RS-485K --> RT54
    RS-485K --> RT55
    RS-485K --> RT56
    RS-485K --> RT57
    RS-485K --> RT58
    RS-485K --> RT59
    RS-485K --> RT60
    RS-485K --> RT61
    RS-485K --> RT62
    RS-485K --> RT63
    RS-485K --> RT64
    RS-485K --> RT65
    RS-485K --> RT66
    RS-485K --> RT67
    RS-485K --> RT68
    RS-485K --> RT69
    RS-485K --> RT70
    RS-485K --> RT71
    RS-485K --> RT72
    RS-485K --> RT73
    RS-485K --> RT74
    RS-485K --> RT75
    RS-485K --> RT76
    RS-485K --> RT77
    RS-485K --> RT78
    RS-485K --> RT79
    RS-485K --> RT80

6.4 Outputs

The device provides two pulse outputs. Both pulse outputs are passive type.

Pulse output 1 is configurable. The pulse output 1 can be set to generate pulses to represent total / import / export kWh or kVArh.

The pulse constant can be set to generate 1 pulse per:

0.001 kWh/kVArh (default)

0.01 kWh/kVArh

0.1kWh/kVArh

1 kWh/kVArh

Pulse width: 200/100/60ms(default)

Pulse output 2 is non-configurable. It is fixed at total kWh. The constant is 1000imp/kWh. Its width is fixed at 60ms.

* For pulse output 1, it can't be configured directly in setting mode on the device, but can be configured via RS-485 interface.

7 Technical data

7.1 Dimensions

Figure 7-1 Dimensions
45mm 18mm 64mm 35mm 118mm

7.2 Technical data

Table 7-1 technical data

Measuring input data
Voltage UN 230 V
Input voltage range 80%...120% UN
Power consumption 10 VA (2 W)
Frequency 50 Hz
Auxiliary voltage Device is supplied by the measuring circuit
Starting current Ist 0.02 A
Minimum current Imin 0.25 A
Transient current ltr 0.5 A
Nominal current lref 5 A
Maximum current Imax 45 A
Measurement connection data
Measurement connection 2.5...10 mm ^2 (1.5 Nm)
Other connections0.5...1.5 mm ^2 (0.2 Nm)
Electric strength as per EN 50470-11.2 μs/50 μs at 6 kV
Electric strength as per EN 50470-3, 7.24 kV for 1 minute
Ambient conditions
Mechanical environmentM1
Electromagnetic environ-mentE2
Operation temperature-40 °C...70 °C
Storage temperature-40 °C...70 °C
HumidityMax. 90%, non-condensing
Degree of protection-frontIP51 if mounted in a control cabinet with IP51 degree of protection or higher
Degree of protection-connectionIP20
Internal/external meter typeInternal
Meter typeBidirectional
Safety
Pollution degree2
Protection class as per EN 50470-1II
Flame resistance-housingUL94 V0
Accuracy
Real energy as per EN 50470-3Class B
Real energy as per EN 62053-21Class 1
Reactive energy as per EN 62053-23Class 2
Housing
Standard DIN 43880
Metrological LED
Pulse output 1 Pulse output 2
Meter constant Configurable1000 imp/kWh
Communication
Standard RS 485
Protocol Modbus/RTU
Speed 1200...19200 bps
Parameters Address, speed, parity, stop
Outputs
Pulse output 1 Pulse output 2
Meter constant Configurable1000 imp/kWh
Pulse width Configurable 60 ms
Type Passive opto-isolated
Maximum voltage 27 V DC
Maximum current 27 mA DC

7.3 MID Data

Table 7-2 MID data

AccuracyClass B (EN 50470-3)
Voltage UN230 V
Rated frequency fN50 Hz
Cosine φ0.5 inductive...0.8 capacitive
Starting current Ist0.02 A
Minimum current Imin 0.25 A
Transient current Itr0.5 A
Nominal current Iref5 A
Maximum current Imax45 A
Operation temperature-40 °C...70 °C (-40 °F...158 °F)
Relative humidity≤90%, non-condensing
Electromagnetic ambient conditionsE2

Table 7-2 MID data [...]

Mechanical ambient conditions M1
Type of application Interior space counter
Protection class To ensure that protection against dust and water is provided in accordance with the specific standards as per MID, the energy meter must be installed in a housing or control cabinet with protection class IP51 (or higher).

8 Modbus register

Table 8-1 The format for each byte in RTU mode

Coding system: 8-bit per byte
Data format: 4 bytes (2 registers) per parameterFloating point format (to IEEE 754) if there is no special note.Most significant register first (Default). The default may be changed if required
Error Check Field: 2 byte Cyclical Redundancy Check (CRC)
Framing: 1 start bit8 data bits, least significant bit sent first1 bit for even/odd parity (or no parity)1 stop bit if parity is used, 1 or 2 bits if no parity

The device can transfer a maximum of 10 values in a single transaction. Therefore, the maximum number of registers requestable is 20. Exceeding this limit will prompt the device to generate an exception response.

8.1 Measuring values

Table 8-2 Measuring values

Decimal start addressHexadecimal start addressTypeFunctions Format
30001 0x0000Read04Float
Decimal addressHexadecimal addressNumber of registersDescriptionUnitData type
300010x00002VoltageVFloat
300070x00062CurrentAFloat
300130x000C2Active powerWFloat
300190x00122Apparent powerVAFloat
300250x00182Reactive powerVArFloat
300310x001E2Power factorNoneFloat
300710x00462FrequencyHzFloat
300730x00482Import active energykWhFloat
300750x004A2Export active energykWhFloat
300770x004C2Import reactive energykVArhFloat
3007930085 0x0054 2 Total system power de-0x004E2mandExport reactive energyWkVArhFFloatI
30087 0x0056 2 Maximum total systempower demandWFI
30089 0x0058 2 Import system power de-mandWFI
30091 0x005A 2 Maximum Import systempower demandWFI
30093 0x005C 2 Export system power de-mandWFI
30095 0x005E 2 Maximum Export systempower demandWFI
30259 0x0102 2 Current demand A Float
30265 0x0108 2 Maximum current de-mandAFI
30343 0x0156 2 Total active energy kWh Float
30345 0x0158 2 Total reactive energy kVArh Float

8.2 Device information and configuration

Table 8-3 Device information and configuration

Decimal start address Hexadecimal start address Functions
40003 0x0002 03/10
Decimal addressHexadecimal addressNumber of registersDescription Type Data type
40003 0x0002 2Demand period0, 5, 8, 10, 15, 20, 30, 60minsDefault 60 minsr/w Float
40013 0x000C 2Pulse 1 width60, 100, 200msDefault 60msr/w Float
40019 0x0012 2Network parity stop1: stop bit 1, even parity2: stop bit 1, odd parity3: stop bit 2, none parityDefault 1r/w Float
40021 0x0014 2Meter ID1...247Default 1r/w Float
40029 0x001C 2Baud rate0: 2400 bps1: 4800 bps2: 9600 bps3: 19200 bps5: 1200 bpsDefault 2r/w Float
40087 0x0056 2Pulse output 1 energy type0001: import active energy0002: total active energy (import+export)0004: export active energy0005: import reactive energy0006: total reactive energy (import+export)0008: export reactive energyDefault 0004r/w Float
461457 0xF0101 Reset00 00: reset demand infowo Hex
463745 0xF9002 Time of scroll display0...30s configurableDefault 0sr/w BCD
463761 0xF9102 Pulse output 10000: 0.001kWh/kVArh0001: 0.01kWh/ kVArh0002: 0.1kWh/ kVArh0003: 1kWh/ kVArhDefault 0000r/w Hex
463777 0xF9202 Measurement mode0001: mode 1, total=import0002: mode 2,total=import+export0003: mode 3,total=import-exportDefault 0002r/w Hex
464513 0xFC002 Serial number ro Ulnt32

A Appendixes

A 1 List of figures

Section 2

Figure 2-1: Scope of supply ....7

Figure 2-2: Operating and indication elements ....8

Section 4

Figure 4-1: Snapping the device onto the DIN rail 9

Figure 4-2: Connection .... 10

Figure 4-3: Modbus/RTU network 11

Figure 4-4: Sealing .... 12

Section 5

Figure 5-1: To change the displayed values .... 13

Figure 5-2: Setting mode ....13

Section 6

Figure 6-1: Full screen 14

Figure 6-2: Operating mode ....14

Figure 6-3: Modbus/RTU network ..... 15

Section 7

Figure 7-1: Dimensions ...... 16

A 2 List of tables

Section 6

Table 6-1: Display pages: Start mode....14

Table 6-2: Setting range and default settings of Modbus RTU communication .... 15

Section 7

Table 7-1: technical data .... 17

Table 7-2: MID data....18

Section 8

Table 8-1: The format for each byte in RTU mode....20

Table 8-2: Measuring values....20

Table 8-3: Device information and configuration....22

Please observe the following notes

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Product information

Brand : Phoenix Contact

Model : EEM-EM157-EE

Category : Measurement