DDMF2-4DA is an analog output expansion device for programmable controllers and data acquisition systems. It uses MODBUS RTU RS-485 communication, supports multiple configuration software; has 4 channels of 12-bit analog output, selectable communication rate, supports receive and send indication states; analog output is isolated from the communication circuit, and has power polarity protection.
The DDMF2-4DA is a 4‑channel analog output module that supports MODBUS RTU over RS‑485 and is intended for use with PLCs, DCS, PCS and PC‑based control systems. It provides selectable voltage (0‑5 V, 0‑10 V) or current (0‑20 mA, 1‑5 V, 4‑20 mA) output ranges with 12‑bit resolution and isolated outputs.
The manual covers the module’s main features, technical parameters, wiring diagrams, communication settings, parameter configuration methods and safety precautions. It also includes example MODBUS register maps and step‑by‑step instructions for installing and configuring the device. This manual is written in Chinese.
| Power consumption (max) | 2200 mW |
|---|---|
| Maximum transmission distance | <1200 m at 19200 bps |
| Resolution | 12 bit |
| Isolation voltage | 1200 V |
| Power supply | DC 24 V ±5 % |
| Weight (without packaging) | ≈0.22 kg |
The maximum power consumption is 2200 mW.