The Mitsubishi L60AD4-CM is a 4-channel analog input module that sits in the MELSEC programmable controller rack. It accepts voltage inputs from -10 to 10 VDC at 1 MΩ input resistance and current inputs from 0 to 20 mA DC at 250 Ω input resistance, making it suitable for standard industrial transmitters and sensors. Each of the 4 channels is independently selectable for voltage or current mode, and the module outputs a digital value ranging from -20480 to 20479 in normal mode; with the scaling function enabled, the range extends to -32768 to 32767.
Input characteristics
On the current input side, the 250 Ω burden on each channel keeps voltage drop low for loop-powered transmitters. The voltage input's 1 MΩ impedance minimizes loading on the source, preserving signal accuracy for high-impedance sensors.