Industrial 8-Ch Analog Acquisition Module (B), 12-bit , 0~10V (default) / 2~10V / 0~20mA /4~20mA

Modbus RTU Analog Input 8CH is an industrial standard analog acquisition module, supports multiple ranges and 8-ch simultaneous acquisition. Adopts Modbus RTU protocol with built-in protection circuits such as power isolation, magnetical isolation, resettable fuse, and TVS.

User Manual / Datasheet / Example Codes Etc.

Features

•  Configurable device address (1~255), multi devices can be cascaded on RS485 bus

•  Onboard voltage regulator, supports 7~36V wide range power supply

•  Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal

•  Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference

•  Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, provides            over-current/over-voltage proof, lightningproof & anti-electrostatic

•  Supports 12-bit high-precision acquisition with multiple range input modes, supports single-ended/differential input, supports voltage and current                      simultaneous acquisition

•  Adopts high-precision resistors and zero-drift high-precision operational amplifier for more accurate data acquisition

•  Built-in oversampling digital filtering algorithm, onboard watchdog, for stable output without crashing

•  Rail-mount case design, support stacking combination, easy to install and safer to use

•  3x LEDs for indicating the MCU status and signal transceiving status

Specifications

•  COMMUNICATION INTERFACE : RS485

•  BAUD RATE : 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000

•  DEFAULT COMMUNICATION FORMAT : 9600, N, 8, 1

•  MODBUS PROTOCOL : Standard Modbus RTU protocol

•  POWER SUPPLY : DC 7~36V

•  SAMPLING ACCURACY : 12-bit resolution, accuracy ≤3%

•  DATA UPDATE RATE : 25Hz

•  INPUT MODE : supports single-ended/differential input, supports voltage and current simultaneous acquisition

•  DEFAULT MODE : 8-ch voltage mode, 0~10V

•  RANGE :  0~10V/2~10V , 0~20mA/4~20mA

•  CURRENT SAMPLING RESISTOR : 499Ω

Package Includes 

Primary Function

Supports Sending Modbus RTU Protocol Commands Via RS485

To Acquire Data From 0~20mA/0~10V Sensor

Industrial Grade Isolated Protection

Supports Voltage/Current Acquisition Wider Measurement Range

Interface Introduction

Connection Diagram

Wide Voltage Power Supply, Isolated RS485 Interface

Built-In Fuse And Anti-Reverse Protection, With ESD Protection For Analog Input

Dimensions

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