Description
Designed for integration with RMIO motor control and I/O boards, the RDCO-01 module provides multi-channel Distributed Drives Communication System (DDCS) functionality. This communication option card mounts directly to RDCU control units and BCU units, establishing high-speed fiber optic links between drives and external control systems. The board features four distinct communication channels (CH0 to CH3), enabling parallel connections to PLC/fieldbus adapters, decentralized I/O, master/follower drive networks, and engineering PC tools. High-speed data transmission is managed via dedicated optical components, ensuring electrical isolation and noise-immune signaling in demanding industrial environments.
Features
- Four independent fiber optic transmitter/receiver channel pairs (CH0, CH1, CH2, and CH3).
- Supports selectable communication speeds of 1, 2, or 4 Mbit/s.
- Direct physical and electrical interface via a 20-pin pinheader.
- Compatible with Plastic Optical Fiber (POF) and Hard Clad Silica (HCS) cables on 10 MBd channels for extended distances.
- Compact footprint designed for direct internal mounting within the drive enclosure.
Applications
- Coordinated master/follower multi-drive configurations in industrial automation.
- Integration of ABB ACS800 series drives into overriding PLC and DCS architectures.
- Decentralized I/O expansion and supply unit communication.
- Drive commissioning, diagnostic monitoring, and parameterization via PC-based engineering tools.
Technical Specifications
| Manufacturer |
ABB |
| Part Number / Model |
RDCO-01 |
| Module Type |
DDCS Communication Option Module |
| Number of Channels |
4 (CH0, CH1, CH2, CH3) |
| Optical Transmitter/Receiver Speeds |
CH0: 10 MBd CH1: 5 MBd CH2: 10 MBd CH3: 10 MBd |
| Communication Speed |
1, 2, or 4 Mbit/s |
| Operating Voltage |
+5 V DC (±10%) supplied by the host drive |
| Current Consumption |
200 mA (maximum) |
| Degree of Protection |
IP20 |
| Dimensions (H x D x W) |
95 mm x 34 mm x 30 mm |
Connections and Interfaces
| Channel |
Assigned Function |
Optical Transmitter/Receiver Performance |
| CH0 |
Overriding system (e.g., fieldbus adapter module) |
10 MBd (supports POF and HCS) |
| CH1 |
I/O options and supply unit interface |
5 MBd |
| CH2 |
Master/Follower link configuration |
10 MBd (supports POF and HCS) |
| CH3 |
PC tool connection (specifically for ACS800) |
10 MBd (supports POF and HCS) |
Installation Guidelines
- Ensure the host drive and RDCU/BCU unit are completely powered down and safe discharge times have elapsed before commencing installation.
- Align the 20-pin female connector on the RDCO-01 with the matching male header on the RMIO board, pressing firmly to seat the module.
- Secure the board using the provided mechanical fasteners to guarantee proper grounding, shielding, and vibration resistance.
- Observe the minimum bend radius specified by the fiber optic cable manufacturer to prevent signal attenuation or physical damage to the core.