Manual
3–22 Status Word/Bit Descriptions
Publication
1771-6.5.126 – March 1998
Notes: For [ ] engineering units, see page 2.
Word
Bit Description
SYS18 Status of Last Successful Decode
The module latches one of the bits in SYS17 and SYS18 (while unlatching all others) when it successfully decodes the
referenced command block and places the new data into operational memory. The module does not latch any bit asso-
ciated with an unrecognizable command block. Set no more than one bit at a time in SYS17 and SYS18.
This bit
latched ON:
when last successful decode was:
B00-07 RFU
B08 DYC
B09 RLC
B10 RFU
B11 PTC
B12-B15 RFU
SYS19 Programming-error Alarms
The module latches bits when it attempts to decode a newly received copy of the subject command block and is forced
to discard the data due to the presence of a programming error in the newly received block. The module does not latch
any bit associated with an unrecognizable command block. The module unlatches each bit when it successfully de-
codes the referenced command block and places the new data into operational memory.
This bit
latched
ON:
when the module detected a programming error in:
B00 MCC The module ceases all action execution and sets its outputs to zero when forced to set this bit. The module
does not respond to any action execution commands as long as this bit remains SET.
B01 JGC
B02-06 RFU
B07 INC
B08 IPC
B09 PKC
B10 HDC
B11 HPC
B12 PRC
B13 PLC
B14 PPC
B15 PSC
SYS20 Programming-error Alarms
The module latches bits when it attempts to decode a newly received copy of the subject command block and is forced
to discard the data due to the presence of a programming error in the newly received block. The module does not latch
any bit associated with an unrecognizable command block. The module unlatches each bit when it successfully de-
codes the referenced command block and places the new data into operational memory.
This bit
latched ON:
when the module detected a programming error in:
B00-07 RFU
B08 DYC The module ceases all action execution and sets its outputs to zero when forced to set this bit. The module
does not respond to any action execution commands as long as this bit remains SET.
B09 RLC
B10 RFU
B11 PTC
B12-B15 RFU