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4-12 Genius Modular Redundancy Flexible Triple Modular Redundant (TMR) System
User’s Manual – March 1995
GFK-0787B
Analog Inputs
The method of analog input processing is similar to the method used for discrete inputs.
During the Input Scan, data from analog input blocks is placed in the Analog Input Table
as shown below. Inputs from blocks that have been included in the GMR configuration
are placed in the areas labelled A, B, and C. Data from any additional analog input
blocks (non-voted blocks or blocks on other busses) is placed in a separate area as
shown.
Analog Input Table
Voted Inputs
Non-voted Inputs
Input
Voting
Logic
A inputs
A
B
C
B inputs
C inputs
The GMR software creates and maintains the separate areas of the analog Input Table. In
addition to the four areas used for the inputs received from Genius blocks, there is an
additional area at the beginning of the analog Input Table for voted inputs.
The chapter on Programming explains in detail how Analog Input table memory is
allocated.