Omron DEVICENET SAFETY - 04-2005 Operation Manual page 29

If an error is detected, safety input data and individual safety input status will turn OFF.
Setting Dual Channel Mode and Discrepancy Time
The consistency between signals on two channels can be evaluated. Either of the following settings can be
selected. This function monitors the time during which there is a discrepancy in the logic between the two
channels set as dual channels. If the length of the discrepancy exceeds the set discrepancy time (0 to 65,530
ms, in increments of 10 ms), the safety input data and the individual safety input status will turn OFF for both
inputs.
IMPORTANT: The dual channel function is used with 2 consecutive inputs that start from even input num-
1-4 Description of Safety Functions
* Normal
T0
External device
IN0
Safety input 0
Remote
I/O data
Status of safety
input 0
* Error
T0
External device
IN0
Safety input 0
Remote
I/O data
Status of safety
input 0
bers: inputs 0 and 1, inputs 2 and 3, inputs 4 and 5, etc.
24 V
0 V
ON
OFF
ON
OFF
ON
OFF
ON
OFF
24 V
0 V
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Error
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