Giao tiếp qua Modbus RTU RS485.
SKU:25821 Default Current Mode (0~20mA) và đọc được tín hiệu 0~5V.
SKU:25767 Default Voltage Mode (0~10V) và đọc được tín hiệu 0~20mA.
Sản phẩm nhập khẩu chính hãng Waveshare
Hỗ trợ kỹ thuật trong suốt quá trình sử dụng
Xuất hóa đơn GTGT cho cá nhân, đơn vị có nhu cầu
Sản phẩm được bảo hành 06 tháng
Analog Signal:
Xóa
Features At A Glance
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.
+ 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
Specifications
Model | Modbus RTU Analog Input 8CH | Modbus RTU Analog Input 8CH (B) |
---|---|---|
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 |
Supports sending Modbus RTU protocol commands via RS485
to acquire data from 0~20mA/0~10V sensor
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.
8-ch analog acquisition interfaces, voltage and current acquisition is switchable via jumper. Multiple Ranges Configurable via Software
Supports setting device address (1~255) for Multi-Device Cascading, supports single-ended/differential input, supports voltage and current simultaneous acquisition.
Built-in fuse and anti-reverse protection, with ESD protection for analog input
Supports 35mm standard guide rail, with rail-mount buckle, easy to install.