AC1322 - Programmable Logic Controller IFM - Free user manual and instructions

Product type	Programmable logic controller (AS-i controller)
Brand	IFM
Model	AC1322
Dimensions (W x H x D)	Approximately 97 x 107 x 62 mm
Weight	Approximately 0.5 kg
Power supply	24 V DC (20...30 V DC)
Interfaces	2 AS-i masters (version 2.1), 1 CANopen interface, 1 RS232C serial port
CANopen transmission rate	10 k, 20 k, 50 k, 125 k, 250 k, 500 k, 800 k, 1 Mbit/s
Maximum number of CANopen slaves	127
Max. serial link distance	20 m
Protection rating	IP20 (mounting in electrical cabinet)
Operating temperature	Not specified in the manual (estimated: 0 to 55 °C)
Display	Adjustable contrast screen, 3 AS-i status LEDs, 3 CANopen LEDs, 1 power LED
Main functions	Data exchange control with sensors/actuators, signal preprocessing, standalone or gateway operation, programming via RS232C
Maintenance and cleaning	Clean with a dry, lint-free cloth. Avoid dust accumulation and moisture.
Safety	Disconnect power before any connection. Ensure a low-resistance equipotential bonding. Do not expose to vibration, shock or condensation.
Spare parts and repairability	Contact IFM manufacturer for any spare parts or repairs.
General information	Manual downloadable free of charge in PDF format. Available languages: FR, DE, EN.

Frequently Asked Questions - AC1322 IFM

How to connect the power supply to the AC1322?

Connect the 24 V DC power supply to the +24 V and 0 V terminals. Ensure the system is de-energized before connection. The voltage must be between 20 and 30 V DC.

What do the LEDs on the front panel mean?

The PWR/COM, PROJ and CONF/PF LEDs indicate the status of the AS-i master and the connected system. The CANopen LEDs indicate the status of the module and network. The green power LED indicates voltage presence.

How to adjust the display contrast?

Press simultaneously the right button and the Δ button (increase contrast) or ∇ button (decrease contrast).

What is the procedure to change the interface language?

In the main menu, press both navigation buttons simultaneously to toggle between German and English.

How to configure the CANopen transmission rate?

Go to the Fieldbus Setup menu, then enter the desired rate (e.g. 125 kbit/s). Possible values are: 10 k, 20 k, 50 k, 125 k, 250 k, 500 k, 800 k, 1 Mbit/s.

Can I use the AC1322 as a gateway?

Yes, by disabling the integrated PLC (PLC Setup) and enabling gateway mode, the controller can communicate with a higher-level control system via CANopen.

How to automatically address a new AS-i slave?

Use the Easy Startup function in the Address Slave menu. It automatically assigns the next available address to a new slave.

What to do if the CONF/PF LED flashes?

This indicates a peripheral fault on at least one AS-i slave. Check the list of slaves with fault (LPF) in the Slave Lists menu to identify the problem.

What is the maximum wiring distance for the RS232C port?

The maximum distance between the controller and the host is 20 meters. Use the E70320 programming cable.

Is the AC1322 compatible with analog input/output modules?

Yes, AS-i slaves can provide analog inputs/outputs. The controller can read analog modules via module configurations 9 (multiplexed analog input) and 10 (multiplexed analog output).

USER MANUAL AC1322 IFM

Line drawing of an electrical control panel with buttons and a meter (no text or symbols)

CANopen Status LEDs (Network Status)

Function and features

• The controller _e (AC1321/AC1322) integrates one or two AS-i masters (both in accordance with the AS-i version 2.1), a mini controller and a CANopen interface
• It controls the exchange of data to the sensor/actuator level
• processes the peripheral data in the integrated processor (signal preprocessing)
• works as stand-alone controller with exchange of data to the PC (visualisation)
• communicates with the higher control level (in the gateway mode)

Programming interface RS232C

• Baud rate 4800 to 115,200 baud
- Max. distance between controller e and host: 20 m
- Potential separation from the controller e power supply
- Programming cable E70320 for connection to host required

CANopen interface

• Baud rate 10 k, 20 k, 50 k, 125 k, 250 k, 500 k, 800 k, 1 Mbits/s
• Max. distance between controller _e and host: depending on the baud rate
• Potential separation from the controller _e power supply
• Up to 127 controllers connected in parallel
• Pin connection: Pin 1: V-; Pin 2: CAN_L; Pin 3: Shield; Pin 4: CAN_H; Pin 5: V+

Installation

Fix the controller _e onto a 35 mm rail. The protection rating of the unit is IP 20, therefore it should be mounted in a protected location (e.g. control cabinet).

Ensure a condensation-free environment. Avoid excessive dust, vibration and shock. The air circulation through the vents must not be impeded.

Avoid installation in direct vicinity of frequency converters.

Electrical connection

Disconnect the installation from power. Connect the unit as indicated on the terminals. Never connect the minus potentials to each other or the minus potentials to the FE connection. Ensure an electrically safe ground connection between AS-i controller _e (terminal FE) and ground of the unit.

Supply the CANopen controller _e with a 24 V DC voltage (20...30V DC).

Connection is made to the terminals +24 V and 0 V.

Operating and indicating elements

Information concerning the state of the master (AC1321) / master AC1322) and the connected system is given via three diagnostic LEDs on the controller _e .

• LED PWR/COM lights: AS-i voltage present, at least one slave was detected
• LED PWR/COM flashes: AS-i voltage present, but no slave was detected correctly
• LED PROJ lights: Projection mode active, the configuration monitoring is deactivated
• LED PROJ flashes: Projection mode active, changeover to protected mode not possible as a slave with the address 0 is connected
• LED CONF/PF lights: Projected and current configuration do not match
• LED CONF/PF flashes: Periphery fault on at least one connected slave

CANopen status LEDs (module status)

• LED green flashes 1 Hz: Pre-operational status
• LED green flashes 2 Hz: Prepared status
• LED green lights: Operational status
- LED red flashes 1 Hz: Initialisation error

CANopen status LEDs (network status)

• LED green flashes 1 Hz: BUS OFF
• LED green lights: Online, connection ok
• LED red flashes 1 Hz: Other faults

CANopen power

• LED green lights: Supply voltage on
• LED green is off: No voltage, controller

_e not initialised

graph TD
    A["LED indicators and pin connection"] --> B["CANopen"]
    B --> C["Module Status"]
    B --> D["Reserved"]
    B --> E["Network Status"]
    B --> F["Power"]
    G["ASI2 only AC1322"] --> H["PWR/COM PROJ CONF/PF"]
    G --> I["PWR/COM PROJ CONF/PF"]
    G --> J["24V PWR PLC RUN"]
    K["ASI1"] --> L["CANopen interface"]
    M["RS232C"] --> N["RS232C"]
    O["display"] --> P["Device with buttons"]
    Q["pushbuttons"] --> R["Device with push buttons"]
    S["SI2+"] --> T["SI2-"]
    U["ASI2-"] --> V["ASI1+"]
    W["ASI1-"] --> X["ASI1-"]
    Y["FE+"] --> Z["FE+"]
    AA["+24V"] --> AB["+24V"]
    AC["OV"] --> AD["OV"]

Contrast setting

The contrast can be directly changed by simultaneously pressing the right button and the -button (too bright) or the -button (too dark).

increase contrast

decrease contrast

Operation

To operate an AS-i system a special AS-i power supply is required. Connection is made to the terminals AS-i + and AS-i -.

Disconnect the power supply before connecting the controller _e .

The AS-i system is operated ungrounded. AS-i + and AS-i - are to be symmetrical to the ground potential of the installation. Ensure a low resistance connection of the symmetry point of the AS-i power supply (terminal shield) to the ground of the installation.

Menu overview

Open the main menu by pressing the left button "MENU" in the start display.

To navigate within a menu point press the button or .

Press the buttons simultaneously to switch between the German and English menu.

Menu navigation

O Slave lists (Checking of the addresses of the connected AS-i slaves)

∇ List of the detected AS-i slaves (LDS)
∇ List of the projected AS-i slaves (LPS)
∇ List of the activated AS-i slaves (LAS)
∇ List of the AS-i slaves with periphery fault (LPF)

O Address slave (Programming of the correct addresses in the connected AS-i slaves)

∇ Readdressing of an AS-i slave connected to the controller _e
∇ Automatic addressing of new AS-i slaves to the next free address (easy startup)

O Quick setup (Summary of the menu points required for a basic configuration)

∇ Reading of the current AS-i configuration (config all)

∇ Setting of the fieldbus connection (optional)

O System setup (Setting of the controller e device)

∇ Baud rate of the serial programming interface
∇ IP address of the Ethernet programming interface (optional)
∇ Input of the password to enable changes in the system configuration
∇ Update of the controller _e firmware (special programming software required)

O System info (Device information)

∇ Hardware and firmware version numbers of this controller e
∇ Serial number of this controller e
∇ Current /maximum PLC cycle time

O PLC setup (Using the integrated PLC is optional)

∇ Activation or deactivation of the gateway mode (no PLC used)
∇ Start or stop of the PLC in the controller _e (if used)

O PLC info (Display of the user program name, author, date)

O Master setup (AS-i master flags)

∇ Reading of the current AS-i configuration (config all)
∇ Changeover to the projection mode: configuration of the AS-i system
∇ Changeover to the protected mode: standard mode (the master monitors the configuration)
∇ Deactivation of the automatic AS-i slave addressing in the protected mode
∇ Deactivation of the AS-i reset when exiting the projection mode
∇ Display of the config.error counter of the connected AS-i system
∇ Reset of the config.error counter
∇ Display of the percentage fault rate of the connected AS-i system

O Slave setup (Details about the connected AS-i slaves)

∇ Digital or analogue inputs/outputs of the connected AS-i slaves
∇ Current and projected parameters of the connected AS-i slaves
∇ Current and projected I/O and ID codes of the connected AS-i slaves
∇ Message faults in the communication to the connected AS-i slaves

O Fieldbus setup

∇ Input of the CANopen Node Address of controller
∇ Input of the baud rate of the controller
∇ Input of the module length

Modul 1 = digital inputs master1A

Modul 2 = digital outputs master1A

Modul 3 = digital inputs master2A

Modul 4 = digital outputs master2A

Modul 5 = digital inputs master1B

Modul 6 = digital outputs master1B

Modul 7 = digital inputs master2B

Modul 8 = digital outputs master2B

Modul 9 = analogue multiplexed input

Modul 10 = analog. multiplexed output

Modul 11 = command channel

Modul 12 = PLC inputs

Modul 13 = PLC outputs

Modul 14 = analogue input master 1

Modul 15 = analogue output master 1

Modul 16 = analogue input master 2

Modul 17 = analogue output master 2

Modul 18 = diagnosis