Waveshare Industrial 8-Channel Analog Acquisition Module, Voltage Mode

Waveshare 25767 Industrial 8-Channel Analog Acquisition Module, 12-bit High Precision, Supports Voltage and Current Acquisition, DC 7~36V Wide Voltage Supply, Modbus RTU Protocol

The Modbus RTU Analog Input 8CH is an industrial-standard analog acquisition module that supports multi-range and simultaneous acquisition of 8 channels. It uses the Modbus RTU protocol with integrated protection circuits such as current isolation, magnetic isolation, a resettable fuse, and TVS.

Features:

• Configurable device address (1~255), multiple devices can be cascaded on the RS485 bus.
  
• Integrated voltage regulator, supports a wide voltage supply of 7~36 V.
  
• Integrated unibody power supply isolation, provides stable isolated voltage, no additional power supply required for the isolated port.
  
• Integrated unibody magnetic isolation, enables signal isolation, high reliability, strong anti-interference.
  
• Built-in resettable fuse and TVS (Transient Voltage Suppressor), effectively suppresses overvoltages and transient voltage spikes in the circuit, provides overcurrent/overvoltage protection, lightning protection and anti-static.
  
• Supports 12-bit high-precision acquisition with multiple input range modes, supports single-ended/differential inputs, supports simultaneous acquisition of voltage and current.
  
• Uses high-precision resistors and a high-precision, zero-drift operational amplifier for more accurate data acquisition
  
• Integrated oversampling digital filter algorithm, integrated watchdog for stable output without crashes
  
• Rail mounting enclosure, supports stacking combinations, easy to install and safer to use
  
• 3 LEDs to display MCU status and signal transmission status

Specifications:

• Model name: Modbus RTU Analog Input 8CH (B)
• Communication interface: RS485
• Baud rate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
• Standard communication format: 9600, N, 8, 1
• Modbus protocol: Standard Modbus RTU protocol
• Power supply: DC 7 to 36 volts
• Sampling accuracy: 12-bit resolution, accuracy ≤3%
• Data refresh rate: 25 Hz
• Input mode: Supports single-ended/differential inputs, supports simultaneous voltage and current acquisition.
• Standard mode: 8-channel voltage mode, 0~10 V
• Area:
  • 0~10V/2~10V
  • 0~20 mA/4~20 mA
• Current tap resistance: 499 Ω

For further technical details please visit the manufacturer's product page .