12.4 Binary Opto Inputs
The binary inputs are not checked by the self-monitoring function. However, a
testing function is integrated into the software so that the trigger state of each
input can be read out (Oper/Cycl/Phys menu branch). This check should be
performed for each input being used and can be done, if necessary, without
disconnecting any device wiring.
P634 12 Maintenance
12-6 P634/EN M/R-42-A // P634‑311‑653
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