Details
12-bit High-precision
Supports Voltage and Current Acquisition
DC 7~36V Wide Voltage
Modbus RTU Protocol
Multiple Isolation Protection
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
Modbus RTU Analog Input 8CH
Supports four ranges (configurable):
0~5V/1~5V
0~20mA (default) /4~20mA
Modbus RTU Analog Input 8CH (B)
Supports four ranges (configurable):
0~10V (default)/2~10V
0~20mA /4~20mA
| 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.
Wider Measurement range
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.
Quick Overview
Modbus RTU Analog Input 8CH
- Modbus RTU Analog Input 8CH x1
- Power supply terminal adapter x1
Modbus RTU Analog Input 8CH (B)
- Modbus RTU Analog Input 8CH (B) x1
- Power supply terminal adapter x1
- Jumper cap 10PCS x1
