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Function Description

4-2 Operating Manual: PSS67 F 16DI SB-T

Signal detection at the inputs

To guarantee that a signal at an input (“0” signal or “1” signal) is detected, it

must be present for a certain time period. This period must be longer than

the event timeout configured in the PSS WIN-PRO system software. Once

a signal has been detected, a corresponding event telegram will be

triggered.

A signal (“0” signal or “1” signal) is ignored if it does not exceed the pulse

suppression time of 300 µs. In this case, no event telegram is triggered.

"1"-Signal

"0"-Signal

: Pulse duration to guarantee signal detection for “1” signals or “0” signals

(> Event Timeout)

: Max. pulse duration for pulse suppression with “1” signals or “0” signals

(300 µs)

Fig. 4-1: Signal detection at the inputs

Signal change behaviour

If a signal at an input changes, the module will send an event telegram.

The module must then wait for a confirmation telegram (ACK) from the

Master LD before it can send out a new event telegram.

If there is another signal change while the module is waiting for the

telegram, the module’s behaviour will depend on the configured signal

change behaviour.

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Pilz PSS67 F 16DI SB-T Bedienungsanleitung Seite 18