R4AVA07 Voltage-analog 7-channel RS485 support for Modbus RTU analog voltage sensing 03 06 Function codeJNNJV

The A1 / 2/3/4 channel voltage measurement range is 0-5V, while the A5 / 6/7 channel voltage measurement range is 0-10V. The drive capability of the voltage source under test must be greater than 1MA, otherwise the measurement will be inaccurate (the MCU IO voltage cannot be measured). The voltage measurement accuracy is 1%, and if the error is greater than 1%, calibration can be performed. MODBUS RTU commands can be input via PLC in addition to computer serial port/HyperTerminal input. MODBUS RTU command support the 03 and 06 function codes. In MODBUS RTU command mode, up to 247 devices can be used in parallel. Specification Item Type: Voltage Analog Collector Working Voltage: 8-24V Working Current: 10-15MA Color: Yellow Material: PCB Package Contents: 1 * Voltage Acquisition Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.Please note the model and size.