Description
🔹 Product Introduction
The ABB 560CMU05 is a Communication Unit (CMU) designed for the ABB RTU560 remote terminal unit system. It serves as a central processing and communication module, managing communication between the RTU, field I/O modules, control centers, and local monitoring systems. The module features a 32-bit processor, four configurable serial communication interfaces, and two Ethernet ports.
The four serial interfaces support RS-232C or RS-485, depending on configuration, while the two Ethernet interfaces support 10/100Base-T communication. The module can support multiple communication protocols, subject to the installed firmware, configuration, and applicable licenses. It is suitable for substation automation, electrical utility monitoring, remote data acquisition, and industrial control applications.
Before replacing a unit, confirm the complete model and revision, especially 560CMU05 R0001 or R0002, along with the RTU configuration and protocol requirements.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Model | 560CMU05 |
| Order Number | 1KGT012700R0002 for R0002; verify the installed revision |
| Series | ABB RTU560 / RTU500 |
| Product Name | Communication Unit (CMU) |
| Place of Manufacture | ABB manufacturing origin; individual unit not verified |
| Product Status | Seller-listed refurbished; confirm actual condition |
| Dimensions | Approximately 160 × 100 mm circuit board; 3HE Eurocard format |
| Weight | Approximately 0.21 kg net; about 0.3 kg in some datasheets |
| Country of Origin | Germany, according to catalog data |
| Power Requirements | 5 V DC, approximately 1.06 A |
| Communication Ports | 4 serial ports and 2 Ethernet ports |
| Serial Interfaces | RS-232C or RS-485, configurable |
| Ethernet Interfaces | 2 × 10/100Base-T, RJ45 |
| Processor | AMD Élan520, 133 MHz, 32-bit |
| Memory | 64 MB RAM; 128 MB CompactFlash |
| Operating Temperature | 0–70°C, as specified in the referenced datasheet |
| Discontinued | Confirm current lifecycle status with ABB |
🔧 Fault Troubleshooting and Common Questions
- RTU560 does not start normally: Check the module seating, rack connector, power supply, and status indicators. Follow the system’s diagnostic procedure.
- Serial communication failure: Verify the port configuration, RS-232C/RS-485 selection, wiring, baud rate, and communication protocol.
- Ethernet communication failure: Check the network cable, IP configuration, link/activity LEDs, and connected network equipment.
- Can all four serial ports be used for field communication? They can be configured for serial communication, but port assignments and the use of the CPA/CPB interfaces for the serial peripheral bus depend on the system configuration.
- Does it support all RTU560 protocols? No. Supported protocols depend on hardware revision, firmware, configuration, and licensing. Certain bit-oriented protocols are specific to the R0002 version.
- What is the replacement model? ABB’s RTU500 documentation identifies the 560CMR02 as a successor to the 560CMU05. Confirm the required migration procedure and configuration compatibility before substituting it.
⚠️ Safety Precautions
Isolate the equipment according to the approved maintenance procedure before removing or installing the communication unit. Use electrostatic-discharge protection when handling the circuit board. Back up the RTU configuration and verify firmware, communication settings, and protocol licenses before commissioning the replacement.
⭐ Recommended 15 ABB Models
- 560CMU05 R0001 — Earlier revision of the RTU560 communication unit.
- 560CMU05 R0002 — RTU560 CMU with four serial ports and two Ethernet interfaces.
- 560CMR02 — Successor communication unit for RTU560, with six serial ports and two Ethernet ports; verify migration compatibility.
- 560CMU02 R0001 — RTU560 communication unit with serial and Ethernet interfaces.
- 560CMU02 R0002 — RTU560 communication unit with two serial ports and two Ethernet interfaces.
- 560CMR01 — RTU560 communication unit with two serial ports and two Ethernet ports.
- 560PSU01 — ABB RTU560 power supply family reference; confirm the exact order number.
- 560SFR02 — RTU560 subrack-related component; verify the specific configuration.
- 23BE23 — RTU560 binary input module for compatible systems.
- 23BA20 — RTU560 binary output module.
- 23BA22 — RTU560 binary output module variant.
- 23AE23 — RTU560 analog input module.
- 23AC23 — ABB RTU I/O family reference; verify the exact module function.
- 560AIO01 — RTU500-series I/O family reference; confirm exact availability and compatibility.
- RTU560 — ABB remote terminal unit platform for utility and industrial telecontrol applications.
The closest alternatives are other RTU560 communication units, particularly the 560CMR02. I/O modules and power-supply components serve different functions and are not direct replacements for the 560CMU05.
