8-Channel Analog Input 485 Module is a remote MODBUS RTU data acquisition module designed for linear signal input measurement, and it can be used for 8-channel analog remote data acquisition. 8-Channel Analog Input 485 Module features a three-terminal isolation function. It enables convenient driver-free and seamless connection with various configuration software, touch screens, and different DCS (Distributed Control System) systems. The measurement input has a 16-bit AD resolution. Additionally, it can be used as a PLC (Programmable Logic Controller) measurement accessory.
Features
A digital intelligent data acquisition module with a high-speed signal processor and microprocessor as its core.
The circuit design adopts three-terminal isolation for input, power supply, and communication.
Input
Capable of measuring 8 channels of DC voltage signals within the range of 0-5V;
Or 8 channels of DC voltage signals within the range of 0-10V;
Or 8 channels of DC current signals within the range of 0-20mA.
Other Detailed Parameters
| Parameter Category | Specifications |
| Number of Input Channels | 8 channels |
| A/D Conversion Resolution | 16 BIT |
| A/D Conversion Time | 250 KHz (Note:Typically refers to A/D sampling rate, a common industrial expression) |
| D/A Conversion Resolution | 12 BIT |
| D/A Conversion Time | 12 BIT (Note:It is recommended to confirm whether this is a parameter label error; normally, D/A conversion time is expressed in units like μs. If it is consistent with resolution, it can be understood as "D/A Conversion Resolution |
| Communication Method | RS485 interface, 2-wire system |
| Driving Distance | 1200 meters |
| Communication Baud Rate | 4800, 9600, 19200 bps |
| Communication Parity Mode | No parity, odd parity, even parity; 8 data bits, 1 stop bit |
| Communication Protocol | MODBUS RTU |
| Isolation Voltage | 1000V (Note |
| Power Supply Voltage | DC24V ± 0.1V (Supplementary unit "V" for clarity, consistent with industrial power parameter specifications) |
| Model Selection Dimensions |
Overall Dimensions: 88mm × 72mm × 59mm |
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