The Jietong DDM3A4 DeviceNet angle indicator user manual provides installation, wiring, parameter settings, and operation instructions.
The DDM3A4 is a DeviceNet angle indicator designed for PLC, DCS and computer control systems. It features a 3‑digit LED numeric display, 40 red LED analog points, RS‑485 communication, and supports up to 64 devices on the network.
The manual covers hardware installation, EDS file installation, wiring diagrams, address and baud‑rate configuration, network setup with OMRON PLCs, and troubleshooting steps. It also lists technical specifications and mechanical dimensions. This manual is written in Chinese.
| Power supply voltage | DC 22–25 V |
|---|---|
| Maximum communication distance | < 1700 m |
| Communication speed options | 125 kbps, 250 kbps, 500 kbps |
| LED numeric display | 3‑digit, 0.8" (20 mm high) |
| Analog LED display points | 40 × 5 mm red LEDs (1 point per 9°) |
| Refresh speed | > 100 ms |
| Mechanical dimensions | 130 mm × 130 mm × 132 mm |
| Operating temperature range | -10 °C to +55 °C |
Short the SET and GND pins to enter parameter setting mode, then short GND and SEL to cycle through address or baud‑rate values; short GND and SET again to confirm.
It operates from a DC supply of 22 to 25 volts.
The module supports a transmission distance of less than 1700 meters.
The indicator provides a 3‑digit LED numeric display.