The DVP04AD-H2 is a 4‑channel analog input module for Delta DVP series PLCs, converting voltage or current signals to 14‑bit digital data. It supports voltage input of ±10 V (1.25 mV resolution) and current input of ±20 mA (5 µA resolution) and provides RS‑485 communication in ASCII or RTU mode.
The manual details safe installation practices, including power‑off before wiring, proper grounding, and enclosure requirements. It also covers wiring diagrams, control register settings, and adjustment of offset/gain curves for precise A/D conversion. This manual is written in Chinese.
| Voltage input range | ±10 V DC |
|---|---|
| Current input range | ±20 mA |
| Resolution (voltage) | 14 bits (1 LSB = 2.5 mV) |
| Power supply voltage | 24 V DC (20.4 V ~ 28.8 V) |
| Operating temperature | 0 °C ~ 55 °C |
| Storage temperature | -25 °C ~ 70 °C |
| Communication speed | 4,800 ~ 115,200 bps |
| Number of analog input channels | 4 |
It supports four analog input channels.
Switch off the power, ensure the enclosure prevents unauthorized access, correctly ground the module, and avoid touching terminals while power is on.
RS‑485 communication with selectable ASCII or RTU mode.
The module provides 14‑bit resolution, with 1 LSB equal to 2.5 mV for voltage input.