State Industries FANUC GFK-0827 - Manual (Page 23)

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12 Series 90-70 Hot Standby CPU Redundancy User’s Guide – December 1993 GFK-0827
Commonly Used Acronyms
A list of acronyms used in this manual are defined for your convenience in the following
table.
Acronym Definition
BRM Bus Receiver Module
BSM Bus Switching Module
BTM Bus Transmitter Module
CPU Central Processor Unit
EPROM Erasable Programmable Read Only Memory
GBC Genius Bus Controller
GHS Genius Hot Standby Redundancy
GMR Genius Modular Redundancy
HHM Hand Held Monitor
LED Light Emitting Diode
OI Operator Interface
PLC Programmable Logic Controller
PROM Programmable Read–Only Memory
RAM Random Access Memory
RCM Redundancy Communications Module
PLD Relay Ladder Diagram
SBA Serial Bus Address
SNP Series 90 Protocol
VME VersaModule Europe: the backplane standard
used by the Series 90-70 PLC system