GE GFK-0787B user manual Voting for Two Analog Inputs

4

Voting for Two Analog Inputs

Two inputs may be present in either a Duplex input group, or in a Triplex input group where one of the three inputs has failed.

Three vote options in duplex mode are determined by the duplex state: highest, lowest, or average.

hIf lowest has been configured, the GMR software selects the intermediate value with the unused (third) channel being assigned its minimum configured value.

	Field Input Data
	Input 1	152
Field Input	Input 2	150
Data
	Input 3	175
Duplex State
		lowest
(low, high, or average value)
Default State (hold last,
		max.
minimum, or maximum)

Single Input Provided to Application Logic

150

100minimumvalue

175maximum value

hIf highest has been configured, the GMR software selects the intermediate value, with the unused (third) channel being assigned its maximum configured value.

	Field Input Data
	Input 1	152
Field Input	Input 2	150
Data
	Input 3	175
Duplex State
		highest
(low, high, or average value)
Default State (hold last,
		max.
minimum, or maximum)

Single Input Provided to Application Logic

152

100minimumvalue

175maximum value

hIf average has been configured, the GMR software averages the two remaining input values and supplies the result to the PLC Input Table.

	Field Input Data
	Input 1	152
Field Input	Input 2	150
Data
	Input 3	175
Duplex State
		average
(low, high, or average value)
Default State (hold last,
		max.
minimum, or maximum)

Single Input Provided to Application Logic

151

125minimumvalue

175maximum value

GFK-0787B Chapter 4 PLC Subsystem 4-15