This 4-20mA to RS485 converter is known for its stability and low power consumption, with a typical power consumption of only 0.08W, making it ideal for long hours of continuous operation. It adopts standard RS485 interface, supports ModBus-RTU protocol, and the signal input and output are strictly optimized to ensure high-quality data transmission. The converter module is compact in size, supports flexible installation, adapts to rail mounting, and is easy and convenient to operate.
Specification
Model |
ATO-SN-3002-I20-7 |
ATO-SN-3002-V05-7 |
Acquisition Signal |
4-20mA |
0~5V |
DC Power Supply |
5-30V |
Maximum Power Consumption |
0.08W (DC12V) |
AD Conversion Resolution |
12-bit |
Accuracy |
Typical accuracy: ±0.1%FS |
Communication Interface |
ModBus-RTU (2-way, fully independent) |
Calibration Method |
Numerical range: 0-2 |
0: No checksum (None) |
1: Odd parity (ODD) |
2: Even parity (EVEN) |
Default: No parity |
Input Resistance |
4-20mA: ≤200Ω |
0-5V: ≥10kΩ |
Address Range |
1-254 (default 1) |
Baud Rate |
Numeric range: 0-7 |
0: 2400bps |
1: 4800bps |
2: 9600bps |
3: 19200bps |
4: 38400bps |
5: 57600bps |
6: 115200bps |
7: 1200bps |
Default: 4800bps |
Working Temperature |
-40℃~+60℃ |
Dimension |
122.5mm*70mm |
Net Weight |
≤550g |
Features
- 7 analog current inputs 4~20mA, voltage inputs 0~5V.
- 2-channel 485 outputs are completely independent, address baud rate can be set individually.
- 12-bit resolution, 0.1% accuracy.
- ADC supports standard ModBus-RTU communication protocol.
- Communication operation indicator, anti-dead watchdog.
- With lightning protection, static protection RS485 communication interface, op-amp signal isolation address, baud rate, parity bit can be set through the host computer software.
- Configuration software can be set independently of each current or voltage input type anti-reverse connection, over-voltage protection, over-current protection, short-circuit protection.
Dimensional Drawing (unit: mm)
Wiring Drawing
Attention:
The user can switch the current input/voltage input according to the field conditions.
The circuit board needs to be changed accordingly:
- If current input is selected, short the shorting cap of the corresponding channel.
- If voltage input is selected, remove the shorting cap of the corresponding channel.
Applications
Tips: What input signals does this RS485 converter support?
This 4-20mA/0-5V to RS485 converter supports 7 channels of analog signal inputs, including 4-20mA current signals and 0-5V voltage signals. Each channel can be set independently of the input type, which is suitable for a wide range of sensors and equipment signal acquisition needs, providing a flexible and efficient data transmission solution.
The converter adopts standard RS485 communication interface and supports Modbus-RTU protocol. It is easily compatible with industrial automation systems, PLCs, HMIs and other devices to ensure the stability and accuracy of data transmission. In addition, the communication rate is adjustable and supports multi-device networking to meet complex industrial application scenarios.