PLC single input-output module features:

1, two bus polarity.
2, the power cord, there is polarity.
3, accounting for two consecutive address points, using electronic encoding encoding.
4, each two monochromatic PLC show the input and plc output module operation information.
5, enter the linkage equipment operation after two feedback signals.
6, dual voltage output signal.
7, the power line power, the feedback input line circuit, the input line open or short circuit, the module returns fault signal.
8, has a line fault detection options.
9, the module output can be set to pulse output or level plc module, appearances default level output.
10, can be connected with an output module  output a set of normally open and normally closed output one active node or 24V voltage signal (to increase the output current).