ABB | 560CMU04 | Central Module Unit (CMU)
Product Description:
The ABB 560CMU04 is a Central Module Unit (CMU) designed for ABB’s Advant OCS (Open Control System) distributed control platform. It acts as the primary controller and communication hub for process automation, executing control logic, managing I/O subsystems, and enabling real-time data exchange via industrial networks.
Product Data:
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Parameter
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Specification
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Series
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ABB Advant OCS (Open Control System)
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Module Type
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Central Module Unit (CMU)
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Part Number Suffix
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04 = Standard variant (revision/model) |
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CPU Architecture
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32-bit RISC processor
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Memory
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Configurable RAM/EPROM for application logic & OS
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Communication Ports
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MasterBus 300 (MB300), S100 I/O bus, Ethernet (optional via add-on)
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I/O Capacity
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Supports ≤32 I/O subunits (S800 I/O) via S100 bus
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Redundancy
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Supports hot-standby CPU redundancy (dual CMUs)
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Power Supply
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5V DC via backplane (PSU module dependent, e.g., 561WA01)
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Operating Temp
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0°C to +60°C (standard industrial)
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Relative Humidity
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5–95% (non-condensing)
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MTBF
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>150,000 hours (typical)
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Mounting
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Advant AC 800 controller rack
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Key Features
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Real-time Control, I/O Management, Redundancy, Network Integration
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Features:
- Real-Time Control: Executes complex PID, sequential, and logic control algorithms.
- Dual-CPU Redundancy: Automatic failover for high-availability systems (requires paired CMUs).
- Multi-Network Support: Integrates with MasterBus 300 (MB300), Ethernet TCP/IP (via gateway), and S100 I/O bus.
- I/O Subsystem Management: Controls ABB S800 I/O modules (analog/digital) via S100 bus.
- Hot-Swappable: Modules replaceable without system shutdown (redundant setups).
- Diagnostic Capabilities: LED status indicators for CPU, memory, comms, and faults.
- Firmware Flexibility: Field-upgradable OS and application software.
Function/Role:
Serves as the core processing unit of Advant OCS, handling real-time control tasks, data acquisition from I/O subsystems, and communication with HMI/SCADA systems or higher-level networks.
Purpose:
To provide reliable, high-speed automation control for critical industrial processes while ensuring fault tolerance through redundancy and robust diagnostics.
Applications & Use Cases:
- Process Control: Continuous control (e.g., refining, chemical reactions, pulp/paper).
- Power Generation: Boiler control, turbine sequencing, BOP (Balance of Plant) systems.
- Oil & Gas: Pipeline monitoring, compressor control, offshore platform automation.
- Water/Wastewater: Pump station control, chemical dosing, filtration.
- Manufacturing: Batch processing, material handling, quality control.
Application Fields:
- Chemical/Petrochemical Plants
- Power Plants (Thermal, Hydro, Nuclear)
- Oil & Gas Production/Refining
- Pharmaceutical Manufacturing
- Food & Beverage Processing
- Water Treatment Facilities
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