AC1325 - Industrial Automation IFM - Free user manual and instructions

Product Type	AS-i DP Gateway
Brand	IFM
Model	AC1325
Power Supply	24 V DC (20...30 V SELV)
Profibus-DP Interface	Yes, data rate from 9600 to 12 MBaud
AS-i Interface	AS-i Master (version 2.1)
RS232C Interface	Not used
LED Indicators	PWR/COM, PROJ, CONF/PF, Profibus DP
Protection Rating	IP20
Mounting	On 35 mm profile rail
Required Environment	Protected location, no condensation, avoid dust, vibrations and shocks
Electrical Connection	Terminals +24 V, 0 V, FE
Profibus-DP Connection	Pin 3: signal B, pin 8: signal A
Galvanic Isolation	Yes, with the gateway power supply
Main Functions	Controls data exchange of sensors/actuators, communication with higher-level control system (gateway mode)
Contrast Adjustment	Simultaneous press of right button and up/down button
Menu Navigation	MENU, up, down buttons; language change German/English by simultaneous press
Automatic AS-i Addressing	Yes (easy startup)
Operating Modes	Project mode (configuration) and protected mode (configuration monitoring)
Max Number of Gateways in Parallel	31
Required AS-i Power Supply	Specific, e.g. AC1216, with data decoupling
Maintenance	Ensure air circulation, avoid obstruction of ventilation holes
Safety	Disconnect power before connection, do not connect negative potentials to each other or to FE

Frequently Asked Questions - AC1325 IFM

How to electrically connect the AC1325 gateway?

Disconnect the installation from power. Connect the 24 V DC power supply to terminals +24 V and 0 V, and terminal FE to earth. Never connect negative potentials together or to FE.

What do the LEDs on the front panel mean?

PWR/COM on: AS-i power present and at least one slave detected. PROJ on: project mode active. CONF/PF on: configuration not identical. Profibus DP on: Profibus bus error.

How to adjust the display contrast?

Simultaneously press the right button and the up button (to lighten) or down (to darken).

What type of AS-i power supply is required?

Use a specific AS-i power supply, for example the model AC1216 from ifm, which ensures data decoupling and symmetry with respect to ground.

How to access the main menu?

From the start screen, press the left button MENU. Use the up/down buttons to navigate and the right button to confirm.

How to change the menu language?

Simultaneously press both pushbuttons to toggle between German and English.

What is the maximum distance between the gateway and the Profibus host?

The distance depends on the transmission rate used. For 12 MBaud, it is limited to a few meters; for 9600 baud, it can reach 1200 meters. Consult the Profibus specifications.

How to automatically address a new AS-i slave?

Activate the easy startup function in the menu. The gateway will automatically assign the next available address to any connected slave.

What to do if the PWR/COM LED flashes?

This means that no AS-i slave has been detected correctly. Check the AS-i power supply, cables and slave addresses.

What are the environmental conditions for installation?

The device is IP20 and must be mounted in a protected location (electrical cabinet). Avoid condensation, excessive dust, vibrations and shocks. Ensure free air circulation around the ventilation holes.

USER MANUAL AC1325 IFM

Line drawing of a server rack unit with ports, connectors, and indicator lights (no text or symbols)

Function and features

• The AS-i DP gateway integrates one or two AS-i masters (AC1325/AC1326, both in accordance with the AS-i version 2.1) and a Profibus DP interface
• It controls the exchange of data to the sensor/actuator level
• communicates with the higher control level (in the gateway mode)

Interface RS232C

The serial interface cannot be used.

Profibus-DP interface

• Baud rate 9600 to 12MBaud
• Max. distance between gateway and host: depending on the baud rate
  • Potential separation from the gateway power supply
• Up to 31 gateways connected in parallel
• Pin connection: pin 3: signal B, pin 8: signal A

Installation

Fix the AS-i DP gateway onto a 35mm rail. The protection rating of the unit is IP20, 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 inverters.

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 save ground connection between AS-i DP gateway (terminal FE) and ground of the unit.

Supply the AS-i DP gateway with a 24V DC voltage (20 ... 30V PELV), e.g. from the 24V power supply DN2011 of ifm electronic. The connection is made to the terminals +24V and 0V.

Operating and indicating elements

Information concerning the state of the master (AC1325)/masters/AC1326) and the connected system is given via three diagnostic LEDs on the AS-i DP gateway.

• 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
  • LED Profibus DP lights: Bus error Profibus DP

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 (e.g. AC1216). The AS-i power supply supplies the yellow AS-i cable with energy and implements a data decoupling to the voltage regulator of the power supply. Standard switched-mode power supplies would consider the AS-i data signals as interference signals and suppress them.

Disconnect the power supply before connecting the AS-i DP gateway.

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 gateway
∇ 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

O System setup (Setting of the gateway device)

∇ Input of the password to enable changes in the system configuration
∇ Update of the gateway firmware (special programming software required)

O System info (Device information)

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

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 (Setting of the fieldbus interface)

∇ Input of the slave address of the gateway in the higher-level Profibus DP

∇ Further inputs via the higher-level Profibus DP