Rockwell Automation T8448 Trusted TMR Zone Interface Module - 40 Channel - Manual (Page 26)

Trusted
TM
Module T8448
Issue 14 Apr 10 PD-T8448 26
3.2.5. Rack 5: LINE_FLT
Channel Description
1 Field channel 1 line fault
2 Field channel 2 line fault
40 Field channel 40 line fault
Table 11 Rack 5: LINE_FLT bit descriptions
The line fault input state is reported as true (logic ‘1’) for a line fault condition (open circuit, short circuit,
and no field supply voltage). The logic state is the majority voted value.
3.2.6. Rack 6: DISCREP
Channel Description
1 Discrepancy status channels 1 to 16
(Channel 1 is LSB)
2 Discrepancy status channels 17 to 32
(channel 17 is LSB)
3 Discrepancy status channels 33 to 40
(channel 33 is LSB)
Table 12 Rack 6: DISCREP bit descriptions
Each of the words reports the discrepancy status of 16 channels. The corresponding bit within the
word is set to ‘1’ when a discrepancy condition is detected on that channel’s state (rack 2).