DDMF5 16DI is a switch input expansion module produced by JTPLC. It is used for fieldbus FCS programmable controllers PLC DCS PCS computer and other control data acquisition systems. It adopts Profibus communication method, supports multiple configuration software and PLC systems, has 16 switch input channels, supports leakage input or source input mode selection, with input status LED indication and communication indicator, supports adaptive baud rate selection, electrical isolation and power polarity protection, etc.
This manual describes the DDMF5-16DI digital input module, a 16‑channel switch input device for Profibus‑DP networks. It outlines the module’s main purposes, features such as selectable source or sink inputs, LED status indicators, and its electrical specifications.
The guide covers installation on a standard U‑rail, power connection, PROFIBUS wiring, address setting via DIP switches, and configuration using Siemens STEP 7 software, including GSD file installation and program block setup. Troubleshooting tips and test procedures are also provided. This manual is written in Chinese.
| Operating voltage | DC24V |
|---|---|
| Maximum power consumption | 3800 mW |
| Communication interface | Standard Profibus |
| Communication speed | 19.2 Kbps – 6 Mbps (adaptive, up to 12 Mbps) |
| Number of input channels | 16 |
| Input type selection | Source or sink (voltage) selectable |
| Input isolation voltage | 2500 V |
| Dimensions (W×H×L) | 71 mm × 26 mm × 128 mm |
| Weight (without packaging) | ≈0.21 kg |
| Operating temperature range | -10 °C to +55 °C |
| Operating humidity | 35 % – 85 % non‑condensing |
The address is set manually with the DIP switch SW1; each switch position represents a BCD digit, allowing addresses from 01 to 99.
The module operates from a DC24 V supply; maximum current is about 160 mA when all inputs are used, or about 60 mA if an external DC24 V source supplies the inputs.
In STEP 7 open the Hardware configuration, choose Options → Install New GSD, browse to the Jt_gsd folder and select the file for the DDMF5‑16DI module.