The ABB 560CMU05 (1KGT012700R0001) is a high-performance communication unit (CMU) designed for the RTU560 remote terminal unit series. This model acts as the central processing intelligence for the RTU, managing data acquisition, protocol conversion, and communication between the substation field devices and the higher-level SCADA system.
Technical Specifications
| Feature | Details |
| Model Number | 560CMU05 / 1KGT012700R0001 |
| Processor | 32-bit ARM Cortex-A8 (600 MHz) |
| Onboard RAM | 128 MB |
| Flash Memory | 128 MB (Internal) |
| Interfaces | 2x Ethernet (10/100 BaseT), 4x Serial (RS-232/RS-485) |
| Country of Origin | Germany |
| Dimensions (WxHxD) | 30 x 125 x 85 mm |
| Weight | Approx. 0.25 kg |
Operational Precautions
- SD Card Handling: Use only industrial-grade SD cards for configuration storage; consumer-grade cards may fail due to high write cycles and temperature fluctuations.
- IP Configuration: Ensure the Ethernet ports are configured on different subnets if used for redundant paths to prevent routing loops.
- Firmware Lifecycle: Before deployment, verify that the CMU firmware version is compatible with the RTUtil500 engineering software version being used.
- Hot-Swap Safety: While the RTU560 rack supports hot-swapping, ensure the “Run” LED is not flashing during removal to avoid data corruption on the storage media.
Common Q&A
Q: Which protocols does the 560CMU05 support? A: It supports a wide array of industry standards, including IEC 60870-5-101/104, DNP3 (Serial/TCP), Modbus, and IEC 61850 (Client/Server and GOOSE).
Q: Can this module be used in a redundant configuration? A: Yes, the 560CMU05 supports “Hot-Standby” redundancy when two units are installed in the same subrack and linked via the internal bus.
Q: How is the module programmed? A: Configuration is performed using the RTUtil500 tool, where parameters, I/O mapping, and protocol stacks are defined and then uploaded via Ethernet.
Recommended Similar Models
- 560CMU02: An earlier communication unit version with lower processing overhead.
- 560MPR03: The standard multi-processor rack used to house the 560CMU modules.
- 560PSU02: The redundant power supply module designed for RTU560 subracks.
- 23BE23: A binary input/output module frequently controlled by the 560CMU05.
- 560ETH01: An Ethernet interface expansion for additional network connectivity.



