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Not accept narrow input pulse signal
PLC’s input ON/OFF time should be longer than its loop time. If consider input filter’s
response delay 10ms, loop time is 10ms,then ON/OFF time needs 20 ms separately. So, up
to 1, 000/(20+20)=25Hz input pulse can’t be processed. But, this condition could be improved
when use PLC’s special function and applied instructions (such as high speed count, input
interruption, input filter adjustment).
Dual output(Dual coils)action
As shown in the left map, please
consider the case of using the same coil
Y0 at many positions:
E.g. X0=ON, X1=OFF
The first Y0: X0 is ON, its image area is
ON, output Y1 is also ON.
The second Y0: as input X1 is OFF, the
image area is OFF.
So, the actual output is: Y0=OFF,
Y1= ON.