RS485 to 4-20mA/0-5V/0-10V Converter, 2 Channel

The energy-saving and efficient dual-channel RS485 to analog signal converter is a must-have tool for industrial control, providing a wide range of 4-20mA, 0-5V, and 0-10V signal outputs with high compatibility to meet different system requirements. The converter is based on ModBus-RTU protocol for stable and reliable communication and supports address range 1-254 with flexible baud rate adjustment. 12-bit AD conversion resolution and ±0.1%FS typical accuracy ensure highly accurate signal output.

Specification

Features

1. Supports 2 analog outputs of current type and voltage type, each output type is selectable.
2. 12-bit resolution, 0.1% accuracy.
3. ADC supports standard ModBus-RTU communication protocol.
4. With lightning, static protection RS485 communication interface, op amp signal isolation address, baud rate can be set through the host computer software.
5. With anti-reverse connection, over-voltage protection, over-current protection, short circuit protection.

Dimensional Drawing (unit: mm)

Wiring Drawing

Note: The circuit board needs to be modified accordingly.

• If current input is selected, short the left and center pins of the shorting cap corresponding to the number of circuits.
• If voltage input is selected, short the right and center pins of the corresponding shorting cap. I and V are indicated on the circuit board.

Applications

Tips: Why is there a problem of unstable output signal?

The unstable output signal is usually caused by the following reasons:

• Power supply problem: Check whether the power supply voltage is stable and meets the converter requirements.
• Wiring problem: Make sure the RS485 communication and analog output are wired correctly to avoid short circuit or poor contact.
• Communication interference: RS485 line may be subject to electromagnetic interference, need to use shielded wire and proper grounding.
• Configuration error: Check whether the software configuration matches the actual demand.
• If the problem persists, it is recommended to contact the manufacturer's technical support for further assistance.