ProSoftAN-X2-AB-DHRIO A-B Remote I/O Adapter Module

The AN-X2 uses the same hardware interface to the automation networks.

Differences in Remote I/O Operation 

The diagnostic counters are slightly different. The diagnostic tags for the AN-X2 are 

different to match the diagnostic counters.

The module uses listen only connections instead of input only connections. You can now

have more than one listen only connection. Listen only connections require an owning 

connection (input only connections do not).

The AN-X2 module now supports unicast as well as multicast connections.

Using the MicroSD Card

The AN-X2 microSD card stores configuration data and firmware.

The are no restrictions on the size or speed of the card. The format must be FAT-16 or 

FAT-32.

An adapter is provided so you can insert the microSD card in an SD slot in your 

computer.

The card must be present while the AN-X2 is running.

WARNING! Do not remove the card while the AN-X2 is powered on! 

If the AN-X2 is inaccessible from Ethernet because of its settings, you can remove the 

card and edit the file config.txt. Refer to page 14 for details.

Reinsert the card in the slot at the back of the AN-X2, with the pins facing up.

WARNING!

If you remove the card to edit the configuration file, push the card in 

straight or the card might fall inside the case and you will have to 

disassemble the AN-X2 to retrieve it .

AN-X2 Modes of Operation

There are two AN-X2 modes of operation:

• Maintenance mode. The AN-X2 runs the maintenance firmware at startup. 

It performs diagnostics (memory tests, etc), copies any changes from the 

microSD card. If there are no errors, it starts the AN-X2 in production mode.

• Production mode. This is the normal runtime mode of operation.

Prevent Electrostatic Discharge

The module is sensitive to electrostatic discharge.

WARNING! Electrostatic discharge can damage integrated circuits or semiconductors. Follow these 

guidelines when you handle the module:

• Touch a grounded object to discharge static potential

• Do not touch the connector pins

Power

AN-X requires a DC power input of anywhere from 12 to 24 VDC.

Left to right the pins on the power connector are chassis ground, negative voltage and 

positive voltage.

The chassis ground should be connected.

Power consumption is 200 mA @ 12VDC or 100mA @ 24VDC.

The part number for the power connector is Phoenix MSTB 2.5/3-ST-5.08

Contact us if you need a suitable wall adapter.

Cabling and Termination

Follow Allen-Bradley cabling recommendations for remote I/O. Refer to Approved 

Vendor List for DH, DH+, DH-485, and Remote I/O Cables, publication ICCG-2.2, 

February 1996.

On the AN-X module, the connections are line 1, shield, line 2.

Line 1 on the AN-X is closest to the power connector. 

Check the wiring to ensure that line 1 on the AN-X is connected to line 1 on the PLC, and 

so on.

Terminate both ends of a remote I/O network by using external resistors attached to the 

physical ends of the network. There should be two and only two terminators on the 

network.

Use 82 ohm resistors if the network operates at 230.4 kbps or if the network operates at 

57.6 kbps or 115.2 kbps and none of the devices in the table below are present. The

maximum number of physical devices on the network is 32.

Use 150 ohm resistors if the network contains any of the devices in the table below, or if 

the network operates at 57.6 kbps or 115.2 kbps and you do not require the network to 

support more than 16 physical devices.

Software Installation

You must uninstall any previous version of the software before you can install a new 

version. Use the Windows Control Panel Add and Remove Programs or Programs and 

Features to remove the old version.

Run the program AnxAbRioSetup.msi in the ABRIO folder to install the configuration 

and monitoring software.

CE Installations

If you are installing the AN-X2 in a location which requires CE, install the following 

ferrites or their equivalents on the cables:

Steward 28A2024-0A2 on Ethernet cable close to module, one loop

Steward 28A2024-0A2 on power cable

Steward 28A2025-0A2 on DH+/RIO Cable