Industrial 8-Ch Analog Acquisition Module
12-bit High-precision | Supports Voltage and Current Acquisition | DC 7~36V Wide Voltage | Modbus RTU Protocol | Multiple Isolation Protection
- 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
Version Options
Modbus RTU Analog Input 8CH
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Modbus RTU Analog Input 8CH
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Specifications
MODEL | Modbus RTU Analog Input 8CH | Modbus RTU Analog Input 8CH (B) |
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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 current mode, 0~20mA | 8-ch voltage mode, 0~10V |
RANGE | 0~5V/1~5V 0~20mA/4~20mA |
0~10V/2~10V 0~20mA/4~20mA |
CURRENT SAMPLING RESISTOR | 249Ω | 499Ω |
Primary Function
Supports Sending Modbus RTU Protocol Commands Via RS485
To Acquire Data From 0~20mA/0~10V Sensor
Industrial Grade Isolated Protection
Onboard power and signal dual isolation for RS485 communication, provides stable isolation voltage, features high reliability and strong anti-interference performance. Built-in TVS (transient voltage suppression tube) can effectively suppress the surge voltage and transient peak voltage in the circuit, lightningproof & ESD protection. Built-in resettable fuse and protection diode to ensure stable current and voltage output, provides over-current and over-voltage proof, improves shock-proof performance, suitable for the industrial environments with high requirement.
Supports Voltage/Current Acquisition
Wider Measurement Range
8-Ch Analog Acquisition Interfaces, Voltage And Current Acquisition Is Switchable Via Jumper. Multiple Ranges Configurable Via Software
Interface Introduction
Connection Diagram
Supports Setting Device Address (1~255) For Multi-Device Cascading, Supports Single-Ended/Differential Input, Supports Voltage And Current Simultaneous Acquisition
Wide Voltage Power Supply, Isolated RS485 Interface
Built-In Fuse And Anti-Reverse Protection, With ESD Protection For Analog Input
Rail-Mount Support
Supports 35mm Standard Guide Rail, With Rail-Mount Buckle, Easy To Install.
Supports Stacking Installation
Dimensions
Resources & Services
Wiki: www.waveshare.com/wiki/Modbus_RTU_Analog_Input_8CH
Package Contains:
Weight: 0.141 kg
Modbus RTU Analog Input 8CH (default current mode)
- Modbus RTU Analog Input 8CH x1
- Power supply terminal adapter x1
Modbus RTU Analog Input 8CH (default Voltage mode)
- Modbus RTU Analog Input 8CH (B) x1
- Power supply terminal adapter x1
- Jumper cap 10PCS x1