Features: This 4-channel voltage/current analog acquisition module is perfect for accurate and reliable datacollection with its simple wiring, high security, and wide applications The measurement ofV1 channel voltage is 0-5V, and the measurement ofV2 channel voltage is 0-10V The measurement ofC1C2 channel current is 0-20MA；The voltage resolution is 0.01V, and the measurement accuracy is 1%; Current resolution 0.1MA, measurement accuracy 1%; If the error is greater than 1%, it can be calibrated The MODBUS RTU instruction can be input byPLC in addition to the computer serialport super terminalinput In MODBUS RTU instructionmode, it can support up to 247 devices for paralleluse Specifications: Working voltage 8-24V Working current: 10-15MA MODBUS RTU command supports 03 06 function code The measurement ofV1 channel voltage is 0-5V, and the measurement ofV2 channel voltage is 0-10V The measurement ofC1C2 channel current is 0-20MA Package Includes: 1PC 4-20ma Rs485 Voltage Current Analog Data Collector note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.