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Input circuit delay time
When a signal is input, the input circuit produces a delay
time until the signal is transmitted to the internal processing
block. Care should be taken as this delay time varies widely
according to the operating voltage of the input circuit.
(Example)
During +5 V operation,
there is a delay time of approximately 3 ms until the
signal is transmitted internally.
During +24 V operation,
there is a delay time of approximately 350 µs until the
signal is transmitted internally.
The processing time from when the signal is transmitted
internally until the set number is actually switched varies
according to the operating conditions. When not using any
expansion unit, this processing time is a minimum of about
10 ms. When expansion units are installed, this time
increases.
The delay time can be greatly shortened by not connecting
portion 1 of the circuit shown on the previous page. In this
case, however, misoperation occurs easily due to noise, etc.
Therefore, be sure to implement sufficient noise
countermeasures for use with portion 1 not connected.
Reference
When 1 is not connected during +24 V operation:
Delay time = approximately 3 µs
When 1 is not connected during +5 V operation:
Delay time = approximately 20 µs
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