Waveshare Industrial 8-Ch Analog Acquisition Module with 12-Bit High-Precision Voltage & Current

Description

The Waveshare 8-Ch Analog Acquisition Module is an industrial-grade 8-channel analog input module designed for accurate monitoring and data collection from voltage and current sensors. It provides 12-bit resolution, a sampling accuracy of ≤3%, and an update rate of 25Hz, allowing all 8 channels to be acquired simultaneously.

The module supports configurable input ranges of 0–5V, 1–5V, 0–20mA, and 4–20mA, with both single-ended and differential input modes. Communication is handled through RS485 using the standard Modbus RTU protocol, with baud rates from 4800 to 256000 bps and a default setting of 9600, N, 8, 1.

It operates from a wide DC 7–36V power supply and supports device addresses from 1–255, making it suitable for multi-device RS485 networks. Built-in power isolation, magnetic signal isolation, TVS protection, a resettable fuse, and protection circuitry improve reliability in industrial environments. Features: Cascade several devices on the RS485 bus with configurable device addresses (1-255).

Onboard voltage regulator supports 7-36V power supply. Onboard unibody power supply separation delivers stable isolated voltage and does not require an additional power source for the isolated terminal. Onboard unibody magnetic isolation provides signal separation, great dependability, and powerful anti-interference.

Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, providing over-current/over-voltage proof, lightningproof, and anti-electrostatic Supports 12-bit high-precision acquisition with numerous range input modes, single-ended/differential input, and simultaneous acquisition of voltage and current.

Uses high-precision resistors and a zero-drift high-precision operational amplifier for more precise data gathering. Onboard watchdog and built-in oversampling digital filtering technology ensure reliable output without crashing. Rail-mount case design, supports stacking combinations, is simple to install and safer to use. 3x LEDs to indicate the MCU and signal transceiving status.

Specifications

Brand

Waveshare

SKU

TIFPS0687

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