DDM5A1 is a digital display table technology mainly used for displaying parameters in programmable logic controllers (PLC), DCS computers, and other control acquisition systems. It features Mitsubishi LINK RS 485 communication, 5-digit 0.8 LED digital display, and a display range of 00000-99999.
The DDM5A1 digital display table is designed for use with programmable logic controllers (PLC), DCS, computers and other control and acquisition systems to show parameters such as temperature, pressure, flow, speed, angle, position, quantity, frequency, voltage, current, time and fault codes. It supports RS‑485 communication (up to 32 devices) and optional RS‑232 via a converter.
The module features a 5‑digit 0.8" LED display with optional sign, 15 special symbols, 10‑segment bar‑graph display, programmable decimal point, and polarity protection. It operates from a 4.8‑5.5 V DC supply, consumes up to 300 nW, and can be mounted in any orientation. This manual is written in Chinese.
| Working voltage | DC 4.8‑5.5 V |
|---|---|
| Power consumption | Maximum 300 nW |
| Interface signal | Two‑wire half‑duplex RS‑485 |
| Communication speed | Selectable (e.g., 9600 bps) |
| Transmission distance | < 1200 m |
| Refresh speed | > 20 ns |
| Display accuracy | Matches PLC internal data exactly |
| Dimensions (W×H×D) | 160 mm × 76 mm × 65 mm |
| Weight (without packaging) | ≈ 0.20 kg |
| Operating humidity | 35 %‑85 % RH |
| Maximum number of devices on RS‑485 bus | 32 |
The address is stored in register B5; for example, setting DB5=H3130 (CB5H=30H) assigns the slave address 01.
Up to 32 DDM5A1 modules can be connected on a single RS‑485 network.
The module operates from a DC supply of 4.8 V to 5.5 V.