I/O Status Data - Omron DST1-ID12SL-1 Operation Manual

Description of Safety Functions
Error Recovery
1-4-4

I/O Status Data

Normal Flags
16
The status is treated as normal when both channels are normal. If an error is
detected for one channel, the safety output data and the individual safety out-
put status will turn OFF for both channels.
* Normal
ON
OUT0
OFF
ON
OUT1
OFF
ON
Remote Status of safety
I/O data outputs 0 and 1
OFF
* Error
ON
OUT0
OFF
ON
OUT1
OFF
ON
Remote Status of safety
I/O data outputs 0 and 1
OFF
All conditions below are necessary to recover from an error that has occurred
in a safety output.
• The cause of the error must be removed.
• Error latch time must have passed.
• The output signals to the output I/O tags from the user application that
correspond to the safety output must go inactive.
In addition to I/O data, the DST1-series Safety I/O Terminals support status
data to check the I/O circuits. The status data includes the following data, for
which remote I/O communications can be performed.
• Normal Flags (ON when there is no faults in the internal circuit and the
external wiring)
• An AND Flag of the Normal Flags
• Output monitors (the actual output ON/OFF status)
Normal Flags indicates whether each safety input, safety output, or test output
is normal (normal status: ON, error status: OFF).
Error
Section 1-4