3 Operation
(continued)
C232-302-401/402/403/404-603 / C232/EN M/A23 3-151
3.23 Single-Pole Signals (Function Group SIG_1)
Binary, single-pole signals from the station can be transmitted by the C232 to the control
station through appropriately configured binary signal inputs.
The input signal is conditioned by debouncing and chatter suppression (see: 'Main
Functions of the C232). The conditioned signal is then available as SIG_1: Logic
signal xxx.
Signaling characteristics can be defined through the communication interface by setting
the operating mode. The following settings are possible:
Without function:
Start/end signal
Transient signal
If the setting is Without function, then no telegram is sent when there is a state change at
the binary input. If the setting is Start/end signal then a telegram is sent each time there
is a state change. The requirement for sending the 'start' signal is that the logic '1' signal
be available for the set minimum time. If the setting is Transient signal, telegrams are
only sent if there is a state change from logic '0' to logic '1'.
The following figure shows the setting options and the functional sequence for signal
S001. Equivalent considerations apply to all other single-pole signals.
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