Emerson KJ2201X1-HA1 - DCS Distributed I/O Unit Module

The RX3i control system hardware consists of an RX3i universal backplane and up to seven

Series 90-30 expansion or remote racks. The CPU can be in any slot in the universal backplane except

the last slot, which is reserved for the serial bus transmitter, IC695LRE001.

The RX3i supports user defined Function Blocks (LD logic only) and Structured Text programming.

The RX3i universal backplane uses a dual bus that provides both:

▪ High-speed PCI for fast throughput of new advanced I/O.

▪ Serial backplane for easy migration of existing Series 90-30 I/O

The RX3i universal backplane and Series 90-30 expansion/remote racks support the Series 90-30

Genius Bus Controller and Motion Control modules, and most Series 90-30/RX3i discrete and analog

I/O with catalog prefixes IC693 and IC694. RX3i modules with catalog prefixes IC695. including the

Ethernet and other communications modules can only be installed in the universal backplane. See the

PACSystems RX3i System Manual, GFK-2314 for a list of supported modules.

PAC Machine Edition programming software provides a universal engineering development

environment for all programming, configuration and diagnostics of PACSystems.

A PACSystems CPU is programmed and configured using 

the programming software to perform process and discreteautomation for various applications.

The CPU communicates with IO and smart option modules

through a rack-mounted backplane. It communicates with the programmer andor HMI devices via

the Ethernet ports or via the serial ports COM1 and COM2 using Serial IO, or Modbus RTU slave protocols.