Remote Expansion Based on EtherCAT Bus l0 Module
It can include digital input, digital output, analog input, analog output, etc. Each chip includes 16 channels of DI, 16 channels of DO, 1 channel of AI, and 1 channel of AO.
I/O modules can be divided into various types, such as discrete, analog, and special modules. These modules can be installed on rails or racks with multiple slots, with each module inserted into one of the slots. In industrial control, some input quantities are continuously changing analog quantities (such as pressure, temperature, flow, rotational speed, etc.), while some execution devices require the use of analog signals for control (such as electric control valves, servo motors, frequency converters, etc.), while the processor of the PLC can only process digital quantities. In order for the PLC to be able to process analog quantities, it is necessary to achieve AD conversion and DA conversion between analog and digital quantities. The AD module converts the analog voltage and current input by the detection device into digital quantities and transmits them to the PLC.