6

Default State:

For a triplex group, if all three blocks in the group are lost or if only two blocks are lost and Voting Adaptation is selected as 3±2±0, the GMR system software will use a selected minimum or maximum value (see below) in voting, or hold the last value updated.

For a duplex group, select what should happen if both inputs for a channel are lost or if one block is lost and Voting Adaptation is selected as 3±2±0. The input can be:

Hset to its configured maximum value.

Hset to its configured minimum value.

HHold its last value.

For a simplex group, select which of the above should be done if the input data for the channel is lost.

Maximum,Minimum: The maximum and minimum values (shown in the next illustration) entered for an input represent the block's configured engineering units. The maximum and minimum values are used in two ways. First, either the specified maximum or minimum value can be used as the Default State if actual input data for that channel is not available. Second, the maximum and minimum values entered here represent the full-scale deflection for the input. They are used by the software to monitor the point for limit discrepancy. This is explained in more detail on the next page.

Enter a maximum and minimum value for each GMR analog input channel by first selecting the channel (using the mouse or Tab and Return keys).

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The range for either maximum or minimum is ±32767 to +32767.

GFK-0787B

Chapter 6 Configuration

6-35

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Image 123
GE GFK-0787B user manual Default State