GE GFK-0787B user manual Limits

6

I/O Limits

Select System again. From the configuration menu, select ConfigLimits (click the mouse on that line or cursor down and press Enter).

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Entries made on this screen determine how the GMR software allocates memory. The maximum number of groups that can be configured is 128. Additional parameter limits for this screen are summarized below.

Item	Parameters	Comment
Totalnumber of voted digital inputs	1...112 (788 CPU)	In increments of 16 or 32
and redundant outputs	1...2048(789CPU)
Number of voted analog inputs	1...1024	In increments of 4 or 6
%AI Analog Input Table size	1...8192
%R register table size	1 to 16	Specified in increments of 1K

Voted Discrete

Enter the number of 16-circuit and 32-circuit discrete input and output groups in the system (plus any spare groups you may add in the future). Each input group may consist of 1, 2, or 3 blocks. The GMR software will assign these voted I/O addresses at the beginning of the I/O tables, and ªrawº data addresses at the end of the I/O tables (similar to the illustration of analog inputs, below, and discussed in detail in chapter 7).

Analog	Enter the number of groups made up of 6-input analog blocks and the
In Groups	number of groups made up of 4-input (2-output) blocks. Include any
	spare groups you may add in the future
Tables	Enter the amounts of word memory to be allocated to analog input data
	(%AI) and register data (%R). These values must match the
	corresponding values configured using Logicmaster 90.
	%AI Size: Allow enough %AI memory to accommodate all analog input
	data, as explained below. The maximum size is 8192 analog channels (words).
	%AI memory is divided into sections:

Input

Voting

Logic

Ainputs

Binputs

Cinputs

%AI0001

A

B

C

Voted Inputs

non-voted Inputs

6-18	GeniustModular Redundancy Flexible Triple Modular Redundant (TMR) System	GFK-0787B
	User's Manual ± March 1995