a. The analog expansion module provides the function of analog input / output<br>Best adaptability: it can be used in complex control situations;<br>b. Direct connection with sensor and actuator, 12 bit resolution and multiple input / output range can be directly connected with sensor and actuator without additional amplifier. For example, em235cn module can be directly connected with PT100 thermistor<br>c. Flexibility: when the actual application changes, PLC can be expanded accordingly, and it is very easy to adjust the user program.<br>
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