Chapter 9. Diagnostics
GFK-2950C February 2018 433
9.5.5 Loss of Block (Category 2)
The fault category Loss of Block applies to Genius devices.
Action: Diagnostic.
Loss of Block
The GBC generates this error when it is unable to communicate to the Genius device.
Correction
1) Verify power and wiring to the block.
2) Replace the block.
Loss of Block - A/D Communications Fault
The GBC generates this error when it detects a failure of A/D communications on a Genius device.
Correction
1) Verify power and serial bus wiring to the block.
2) Replace the block.
Fault Extra Data for Loss of Block
The Loss of Block fault provides four bytes of fault extra data. The second byte contains the block
configuration and is encoded as shown in the following table. The third byte specifies the number of
input circuits possibly used, and the fourth byte specifies the number of output circuits possibly
used.
Block Configuration (Byte 2)
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