Mitsubishi BL227XB-K02VL-P Analog Input Module for MELSEC FX3UC Series

The Mitsubishi BL227XB-K02VL-P is a four-channel analog input module designed for MELSEC-F FX3UC series programmable logic controllers. Functionally equivalent to the FX3UC-4AD expansion unit, this module enables precision data acquisition by converting analog signals from industrial instrumentation, field sensors, and transmitters into digital values for the PLC CPU. It features four independent analog input channels supporting selectable voltage signals from -10 V DC to +10 V DC as well as current signals across -20 mA to +20 mA and 4 mA to 20 mA ranges. High-precision signal conversion provides 15-bit plus sign resolution for voltage measurements and 14-bit plus sign resolution for current measurements. Equipped with screw terminal connections for reliable field wiring, the module is engineered for compact DIN rail mounting inside control cabinets. Operating power is sourced via a 5 V DC supply drawn from the main controller unit alongside an external 24 V DC power supply. The BL227XB-K02VL-P is widely deployed across automated machinery, process automation, temperature and pressure monitoring systems, and discrete manufacturing environments where dependable analog signal processing is required.