EM 235 Analog Combination 4AI/1AO
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Product Description
The SIMATIC S7-200 EM 235 is an analog combination module providing 4 analog input channels and 1 analog output channel for process monitoring and control applications. This module enables the S7-200 PLC to interface with analog sensors and actuators commonly found in temperature, pressure, flow, and position control systems. The 4 analog inputs support multiple signal types including 0-10V voltage, 0-5V voltage, 0-20mA current, and 4-20mA current, with 12-bit resolution providing precise measurement capability. The single analog output can generate 0-10V voltage or 0-20mA current signals for controlling variable frequency drives, electronic valves, and other analog actuators. Calibration is accomplished via DIP switches and trim potentiometers on the module, with factory calibration eliminating the need for field calibration in most applications.
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