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The interface of alarm setup is shown in Figure 4-4.
Alarm input is corresponding to the alarm input port of device I/O cable. It is to set corresponding NO
and NC according to the high and low level signal generated by alarm input device when alarm occurs.
Alarm output is corresponding to the alarm output port of device I/O cable.
Figure 4-4
Alarm input and output figures
Figure 4-5
Alarm input: input signal is idle or grounded; the device can collect different states of alarm input port. Input
signal is connected to 3.3V or idle, device collects logic
“1”; input signal is grounded, the device collects
logic
“0”.
Figure 4-6
