General Electric IC200ERM002 Non-Isolated Expansion Receiver Module

Description

The General Electric IC200ERM002 is a Non-Isolated Expansion Receiver Module designed to interface an expansion rack to a PLC or Network Interface Unit (NIU) I/O station within PACSystems and compatible distributed control architectures. This module serves as the primary communication and power distribution node for an expansion rack, capable of supporting up to eight standard discrete I/O, analog, or special-purpose modules. Equipped with an onboard power supply, the unit provides the necessary 5VDC and 3.3VDC operating power directly to the modules slotted within the same rack, streamlining hardware footprints by eliminating external auxiliary power routing for rack-level logic.

The module features dual 26-pin female D-shell expansion ports configured for RS-485 differential or single-ended communication topologies. In multi-rack configurations utilizing an Expansion Transmitter Module (ETM001), the upper port accepts incoming data from the main rack or preceding expansion node, while the lower port facilitates daisy-chaining to subsequent racks or accepting a terminal termination plug. Alternatively, in single-rack local systems, the IC200ERM002 interfaces directly with the CPU or NIU serial port over distances up to 1 meter using dedicated cabling. Occupying slot 0 (the leftmost position) of the expansion backplane, the unit integrates rotary rack ID selection switches (1 through 7) and comprehensive diagnostic LED indicators for real-time monitoring of power status, communication links, and scan synchronization.

Features

• Supports connection of up to 8 I/O and special-purpose modules per expansion rack
• Dual 26-pin female D-shell connectors for incoming data and daisy-chaining or termination
• Integrated power supply providing 5VDC (70mA max) and 3.3VDC (20mA) backplane outputs
• Rotary expansion rack ID switch (settings 1 through 7) located behind upper access door
• Comprehensive diagnostic LED array displaying PWR, EXP RX, and SCAN operational states
• Compatible with RS-485 differential multi-rack architectures up to 15 meters total cable length

Applications

• Distributed I/O rack expansion for GE PACSystems PLC and NIU controller nodes
• Multi-rack industrial automation networking requiring synchronized backplane data exchange
• Modular machine control systems demanding localized I/O drop positioning
• Retrofit and expansion of legacy GE-Fanuc control architectures up to seven remote racks

Technical Specifications

Connections / Interfaces

• Upper D-Shell Port: Receives incoming expansion cable from the main rack transmitter or preceding expansion receiver.
• Lower D-Shell Port: Used for daisy-chaining to the next expansion rack or attaching the *ACC201 termination plug on the final rack.
• Rack ID Switch: Rotary dial positioned beneath the upper-left access door for assigning rack addresses 1 through 7.
• LED Status Indicators: Green PWR (5VDC presence), bi-color EXP RX (bus communication), and green/amber SCAN (CPU scan state).

Compliance and Certifications

• CE Compliant
• UL / cUL-us Listed
• Demko Hazardous Location Approval (Ex nV II T4)