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Understand the Operation of Safety Functions
Publication 1791DS-UM001H-EN-P - April 2009
Dual-channel Setting
When the data of both channels is in the on state, and neither channel
has an alarm, the outputs are turned on. The status is treated as OK
when both channels are OK. If an alarm is detected for one channel,
the safety output data and the individual-safety output status turn off
for both channels.
Dual-channel Setting
OUT0
OUT1
Remote
Safety Input
I/O
Status 0, 1
Data
Fault Detection
OUT0
OUT1
Remote
Safety Input
I/O
Status 0, 1
Data
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Er ror
ON
Detected
OFF
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