25767 8-channel industrial analog acquisition MODBUS module

The 8-channel Modbus RTU analog input is an industrial standard analog acquisition module, which supports multiple ranges and 8-channel simultaneous acquisition. Adopts Modbus RTU protocol with built-in protection circuits such as power isolation, magnetic isolation, resettable fuse and TVS.

• Configurable device address (1 to 255), multiple devices can be cascaded on the RS485 bus
• Onboard voltage regulator, supports 7-36V wide range power supply
• On-board monocoque power supply isolation, provides stable isolated voltage, requires no additional power supply for the isolated terminal
• On-board monocoque magnetic isolation, achieves signal isolation, high reliability, strong anti-interference
• Built-in resettable fuse and TVS (Transient Voltage Suppressor), effectively suppresses surges and transient voltage spikes in the circuit, provides protection against overcurrent/overvoltage, lightning and electrostatic
• Supports 12-bit high-precision acquisition with multiple range input modes, supports single-ended/differential input, supports simultaneous voltage and current acquisition
• Adopts high-precision resistors and high-precision zero-drift operational amplifier for more accurate data acquisition
• Built-in oversampling digital filtering algorithm, built-in monitoring, for stable output without crashing
• Rail mount housing design, support stacking combination, easy to install and safer to use
• 3x LEDs to indicate MCU status and signal transmission and reception status

Main function

Supports sending Modbus RTU protocol commands via RS485
to acquire data from a 0~20mA/0~10V sensor

Industrial grade insulated protection

Double isolation of onboard power supply and signal for RS485 communication, provides stable isolation voltage, has high reliability and strong anti-interference performance. Built-in transient voltage suppression (TVS) tube can effectively suppress surge and transient peak voltage in the circuit, lightning protection and electrostatic discharge protection. Built-in resettable fuse and protection diode to ensure stable current and voltage output, provides overcurrent and overvoltage protection, improves shockproof performance, suitable for high-requirement industrial environments.

Supports voltage/current acquisition
Wider measuring range

8-channel analog acquisition interfaces, voltage and current acquisition is switchable via a jumper. Multiple ranges configurable via software

Interface Overview

Connection diagram

Supports setting device address (1 to 255) for cascading multiple devices, supports single-ended/differential input, supports simultaneous acquisition of voltage and current

Wide voltage power supply, isolated RS485 interface

Built-in fuse and reverse protection, with ESD protection for analog input

Rail mounting bracket

Supports standard 35mm guide rail, with rail mounting buckle, easy to install.

Supports stacking installation

Product presentation

Dimensions