Remanufactured GE-Emerson IC687RCM711 Series 90-70 Redundancy Communications Module

1.2 Amps current required from 5V bus.

Remanufactured

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Part Number
  • IC687RCM711RMN
Manufactured

Features

  • 50ft max. cable length
  • 500Kbytes/sec effective data rate
  • Non-isolated differential communication
  • System designed to support the VME standard C.1
  • Supports FIP Redundant system configurations
  • Two Redundancy Communications Modules required per system (in redundancy rack)
  • Single slot VME width module
  • Provides path for shared I/O and synchronizing message between Primary and Secondary PLCs
  • High Speed Parallel Bus Expansion interface
  • Five LED indicators for board and system status
  • Pushbutton switch for manual switch from active to backup unit

The GE-Emerson IC687RCM711 Series 90-70 Redundancy Communications Module is a half slot module for HSB systems. It provides a path for a synchronizing message from the active to the backup unit, which is used to synchronize the two CPUs in a FIP single rack redundancy system. It also provides the path for the transfer of shared I/O data between the two units. The physical connection between units in a FIP single rack redundancy system can have up to 3ft (0.9m) total of interconnecting cable. The CPUs for FIP single rack redundancy systems can be either IC697CFR782 or IC697CFR28.

The module occupies a single slot in a redundant rack and has two connectors, the top connector is for attachment to the Bus Transmitter Module in the other rack section, and the bottom connector is unused.

Five green LEDs provide status indication of the health of the RCM module and monitor the control status of the Hot Standby CPU Redundancy system. These LEDs are labeled BOARD OK, LOCAL READY, LOCAL ACTIVE, REMOTE READY, and REMOTE ACTIVE. Local refers to the system that the RCM is in; remote is the other system connected through the expansion bus.

A pushbutton on the module allows the user to manually switch control from the active to the backup unit (if the backup unit is ready), which allows maintenance of the previously active unit while the system is online.

The RCM must be configured into the FIP redundancy system using the MS-DOSr or Windowsr programming software configuration function.