Description
Product Overview
The ABB 560CMU04 serves as a communication and processing module within the ABB RTU560 remote terminal unit family. In a substation or distributed industrial facility, the RTU collects field information and exchanges status, event, and control data with supervisory systems. The 560CMU04 supports this communication role through Ethernet and serial interfaces, allowing the RTU560 to connect with remote control centers, local man-machine interfaces (MMI), and compatible peripheral equipment. It is a communication-system component, not a general-purpose PLC I/O card.
The documented interface arrangement includes an Ethernet LAN interface and four serial channels identified as CP1, CP2, CPA, and CPB. The serial channels support different electrical interface modes according to the channel and configuration; RS-232, RS-422, and RS-485 are not necessarily available in the same way on every port. The local MMI interface uses a 9-pin D-sub connector, and the module connects to the RTU system through a 48-pole DIN 41612 connector. Communication settings are managed through ABB RTU configuration tools, so replacement involves more than matching the board’s physical dimensions.
For maintenance and procurement, the ABB 560CMU04 1KGT011300R0001 is most relevant when restoring an existing RTU560 installation or holding a verified spare for critical communications. Before ordering, check the exact model and revision, the installed RTU560 subrack, the current firmware, port configuration, and communication protocols used by the site. The original hardware documentation should govern acceptance and commissioning. Supplier listings contain inconsistent electrical and environmental specifications, so verify those details against the correct hardware data sheet rather than assuming values from another RTU560 module apply.
Product Introduction
The ABB 560CMU04 provides the communication paths needed for an RTU560 installation to exchange data with external control systems. Its Ethernet and serial channels can support different network and field communication arrangements, depending on the installed firmware, software configuration, and connected equipment. This is particularly relevant in electrical substations and remote infrastructure sites where a communications failure can interrupt visibility of field conditions or remote supervisory control.
When replacing a failed unit, record the existing port assignments, interface modes, baud rates, node and IP settings, and protocol configuration before removing the original module, where site procedures permit. Confirm whether the application uses redundancy and whether the replacement needs firmware loading or configuration restoration. Do not assume that a module advertised as compatible with the is automatically compatible with every hardware revision or subrack. For safety-related or operationally critical installations, follow the approved outage, change-control, and commissioning procedures.
Key Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | ABB |
| Model | 560CMU04 |
| Ordering code | 1KGT011300R0001 |
| Product type | Central communication unit |
| System platform | ABB |
| Processor | 32-bit processor architecture reported in supplier documentation |
| Ethernet interface | 10/100Base-T LAN |
| Serial interfaces | Four channels: CP1, CP2, CPA, CPB |
| Serial interface modes | RS-232, RS-422, or RS-485, depending on channel and configuration |
| Local MMI interface | 9-pin D-sub, RS-232C |
| System bus connector | 48-pole DIN 41612 |
| Communication configuration | ABB RTU configuration software; verify required version |
| Power supply | Confirm from the applicable hardware data sheet and installed system |
| Operating temperature | Verify against the exact hardware revision |
| Protection rating | Verify system and enclosure requirements |
| Installation method | Designated communication subrack position |
| Weight | Approximately 0.21 kg reported by supplier listings; verify actual variant |
The interface and connector details are supported by the communication-unit documentation. Exact power requirements, environmental limits, and some physical specifications vary or are not consistently confirmed in the available listings.
560CMU04
Related Products
The following parts are associated with the system or its communication architecture. They are related components, not automatic substitutes.
- 560CMU02 — An earlier communication-unit variant with a different interface arrangement.
- 560CMU05 — Another communication-unit variant; port configuration differs from the 560CMU04.
- 560CSR01 — communication subrack referenced in the 560CMU04 installation documentation.
- 560BCU02 / 560BCU03 — Bus connection units documented for certain extension-subrack arrangements.
- I/O modules — Field-interface modules used with the architecture; select according to the actual I/O and subrack configuration.
Frequently Asked Questions
Q1: What is the ABB 560CMU04 used for?
It is a central communication unit for ABB systems. It handles communications between the RTU and control centers, local operator interfaces, and compatible peripheral equipment.
Q2: What is the ordering code for the 560CMU04?
Supplier references associate model 560CMU04 with ordering code 1KGT011300R0001. Match this against the original nameplate before purchasing.
Q3: How many communication interfaces does it have?
Documentation identifies one Ethernet LAN interface and four serial channels—CP1, CP2, CPA, and CPB—plus a local MMI interface. The exact connector and electrical mode depend on the channel.
Q4: Does it support RS-232, RS-422, and RS-485?
These interface modes are documented across its serial channels, but not every mode is necessarily available on every port. Verify the channel-specific wiring and configuration in the hardware manual.
Q5: Can the 560CMU04 replace a 560CMU02 or 560CMU05?
Do not assume direct interchangeability. These variants have different communication-interface arrangements. Confirm hardware revision, port requirements, firmware, and the applicable ABB replacement guidance before approving a substitution.
Q6: Does replacing the module require configuration work?
Potentially. Port modes, baud rates, network addressing, protocol parameters, and redundancy settings may need to be restored or checked using the site’s RTU configuration tools.
Q7: What should be checked before ordering a replacement?
Confirm the ordering code, revision, subrack compatibility, actual connector layout, firmware requirements, condition, and supplier test evidence. For a used or refurbished module, request photographs of the actual unit and ask what functional testing was performed.
Procurement recommendation
For the ABB 560CMU04, prioritize exact ordering-code matching and verified communication-interface configuration. If the module is intended to replace a unit in a live installation, document the existing settings and confirm the replacement against the site’s hardware manual before commissioning.
