7 for ch Analog Voltage Acquisition Sampler RS485 ModBus RTU Module for PLC OscilloscopeDescription: brand new, high quality Features:MODBUS RTU instruction supports 03 06 function codeThe voltage measurement range of A1 / 2/3/4 channel is 0-5V, and the voltage measurement range of A5 / 6/7 channel is 0-10V. The driving capability of the voltage source under test must be greater than 1MA, otherwise the measurement cannot be accurate (MCU IO voltage cannot measuring)Voltage measurement accuracy is 1%, if the error is greater than 1%, it can be calibratedMODBUS RTU instruction can be input by PLC in addition to the serial port of the computer.MODBUS RTU instruction mode can support up to 247 devices in parallelSize: 45 * 30 * 15 Specifications:Item Type: Voltage Acquisition SamplerMaterial: Electronic componentSize: approx.45x 30 mm / 1.77 / 1.18inWorking voltage 8-24VWorking current: 10-15MAColor: As ShownQuantity: 1 Pc Note:No retail package.Transition: 1cm = 10mm = 0.39inch.Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes:1 x Voltage Acquisition Sampler (other accessories demo in the picture is not included.)