1746 Remote I/O Adapter Module

The SLC 500 Remote I/O Adapter Module provides access to a communication link between SLC or PLC scanners and a variety of 1746 I/O modules; it can control up to 30 slots of I/O installed in three remote 1746 I/O chassis. The 1747-ASB module uses the time-tested Allen-Bradley Universal Remote I/O link for remote I/O communication.

Each 1747-ASB module features a status display that provides alphanumeric status of the ASB module, the 1746 I/O that it controls, and the communication with the remote I/O system. When combined with the COMM and FAULT indicators, this display can be an effective diagnostic tool.

• Does not require user programming
• Supports ½-slot, 1-slot, and 2-slot addressing modes and provides efficient image use by allowing you to assign the amount of image space required per slot for your particular I/O configuration
• Provides switch-selectable single- or block-transfer of I/O data with SLC CPUs or to PLC processors (for I/O modules capable of block-transfers)
• Secures I/O and switch configurations in non-volatile memory. To help prevent system problems and save troubleshooting time, you can inhibit operation of the 1747-ASB module if the I/O configuration or switch settings were modified since the last save
• Uses the switch assemblies to establish an expanded selection of operational settings and safeguards for the ASB module. The ASB module has a processor-restart lockout feature, single- or block-transfer mapping options, and selectable remote I/O image size, making it easier to optimize system performance

Allen-Bradley/Rockwell Automation, 1 Allen-Bradley Drive. Tel: 216-646-5000; Fax: 216-646-3525.