Binary, single-pole signals issued by the system may be transmitted by the P632 via its appropriately configured binary signal inputs to the control station.

Such single-pole input signals are conditioned by debouncing and chatter suppression (see Chapter “Debouncing and Chatter Suppression”). This conditioned signal is then presented as SIG_1: Logic signal S001 (to SIG_1: Logic signal S012).

Signaling behavior via the communications interface is determined by selecting the operating mode. The following settings are possible:

If setting Without function has been selected then no message is transmitted when the signal state at the binary signal input changes. If setting Start/end signal has been selected then a message is transmitted every time the signal state at the binary signal input changes. A requirement for transmission of the “Start signal” message is that the logic “1” signal is present for the set minimum time period. If setting Transient signal has been selected then a message is transmitted every time the signal state at the binary signal input changes form logic “0” to logic “1”.

The following figure displays setting modes and the functional sequence with the example for logic signal S001. This will apply accordingly to all other single-pole signals.