This module is used to exchange data between Profibus field bus and Modbus devices. It adopts Profibus dedicated chip and supports all Profibus-dp field bus systems
The DDMC2PF1 is a protocol conversion module that enables data exchange between Profibus‑DP fieldbus and Modbus RTU/ASCII devices. It supports all Profibus‑DP networks and up to eight Modbus devices, providing flexible integration for PLCs, DCS, and other controllers.
The manual covers power connection, hardware installation on a standard U‑rail, address setting via DIP switches, communication parameter configuration, and fault‑diagnosis features. Detailed wiring diagrams, software setup steps, and example configurations for Siemens S7‑300/315 PLCs are provided to help users quickly deploy the module in industrial automation systems. This manual is written in Chinese.
| Power supply voltage | DC24V ±5% |
|---|---|
| Maximum power consumption | 1800 mW |
| Profibus‑DP communication speed | 19.2 Kbps – 6 Mbps (adaptive) |
| Modbus communication speed | 4.8 Kbps – 115.2 Kbps |
| Maximum Modbus devices supported | 8 devices |
| Input registers | 47 words |
| Output registers | 48 words |
| Physical dimensions | 71 mm × 26 mm × 128 mm |
| Weight (without packaging) | 0.22 kg |
| Installation method | Standard U‑rail |
The module can connect up to eight Modbus devices.
It requires a DC24 V supply with polarity protection, drawing about 70 mA.
The address is set using DIP switch SV4, where each switch position selects a binary value for the station address.
Profibus‑DP speeds range from 19.2 Kbps up to 6 Mbps and are auto‑adaptive.