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Failsafe
P840 Output Fail-safe Mode
This parameter determines what happens to the output in the event of the
unit going into fail-safe mode. The default is to do the same as the system
fail-safe (P808), but this can be overridden to force the mA output to an
independent fail-safe mode as follows:
output will retain its last known value.
3 = High
output will fail to its high condition (5
4 = Very high
output will fail to its highest or fault
condition of greater than 5 VDC.