1747-DCM
The 1747-DCM is a Direct Communication Module for Allen-Bradley’s SLC 500 PLC series, serving as a Remote I/O (RIO) adapter to enable distributed processing systems. It connects SLC 500 controllers via RIO communication links, supporting data transfer between PLCs and industrial networks. Key features include configurable baud rates (up to 230.4K bps), DIP switches for address setup, and compliance with industrial standards (CSA, NEMA). Designed for harsh environments, it operates in 0–60°C temperatures with 5–95% humidity tolerance and integrates into SLC chassis with minimal slot footprint
Description
| Attribute | Value |
|---|---|
| Model | 1747-DCM |
| Type | Direct Communication Module |
| Compatible Series | SLC 500 Fixed/Modular PLCs |
| Backplane Current | 360 mA @ 5V DC |
| Power Dissipation | 1.80 W |
| Communication Protocol | Remote I/O (RIO) |
| Baud Rates | 57.6K bps @ 3,048 m (standard) |
| 115.2K bps @ 1,524 m (standard) | |
| 230.4K bps @ 762 m (extended) | |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Relative Humidity | 5–95% (non-condensing) |
| Slot Requirement | 1 slot in SLC 500 chassis |
| Termination Resistor | 82 Ω/150 Ω (½ W, depending on mode) |
| Certifications | CSA, NEMA ICS 2-230, EN50081-2 Class A |
