ABB 88TR01 GJR2391100R1210 Redundancy Control Module

 88TR01 GJR2391100R1210 is a redundant control module used for redundant applications in the Procontrol P system. It can identify redundancy-related interference signals sent by redundant modules in its own redundant station, monitor the normal operation of modules in its own redundant station, the normal operation of its own redundant station on the remote bus, the same configuration of redundant stations, and its own basic module functions.

In a PROCONTROL station, the redundancy control module isused for redundancy applications.
The redundancy control module:
Working principle:
*Interface connection: Use standard interface to connect to Procontrol station bus, connection with redundant module is established through printed station bus circuit board, connection with other redundant control modules is established through partner interface on the lower edge connector of module and Procontrol bus.
*Signal transmission and verification: The telegram received from the bus is checked for transmission error through parity bit, and the telegram sent to the bus also has parity bit to ensure transmission error.

Performance characteristics:
Redundancy switching function: When the redundancy-related monitoring function does not respond or interference occurs in its own redundant station, the module will perform redundancy switching together with the redundant control modules of other redundant stations.
Status indication function: The LEDs (ST, SG, SR, DF, BE, AK) on the front panel of the module can indicate interference in the module, interference in the redundant station, and module status.

Whenever a redundancy-relevant monitoring function doesrespond,this module will - in conjunction with the redun.dancy control module of the other redundant station - effect aredundancy switchover.
When a station is used as a redundancy, the station's addressmay be within n= 1 to 121.In that case station addressn+128 must not be used by any other station.

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