What is a PLC module?

PLC module is the functional unit of the plc analog output module were made as the building blocks of modules that can be combined as needed to accommodate a variety of needs, commonly used power supply module, CPU module, digital input modules, digital output modules, analog input modules, analog output modules, high-speed counter plc output module, communication module, digital input and output modules, analog input and output modules, Where there are a variety of specifications for each model. May need to be combined in accordance.