Application Scenarios
In a high-speed packaging machinery line, the original controller struggled with the processing demands of synchronized servo axes, causing intermittent timing errors that led to product rejects and downtime. The system integrator upgraded the control cabinet with the B&R 3CP260.60-1 CPU module, leveraging its 0.2 µs cycle time and integrated NC-synchronization capability to handle the real-time motion control requirements. The PCMCIA slot was populated with a 4 MB FlashPROM card (0MC112.9) to store the complex motion profiles and recipe data, while the two interface slots accommodated a CANopen module for servo drive communication and an Ethernet module for connection to the plant’s SCADA system. Since the retrofit, the packaging line has achieved 99.7% uptime, with zero timing-related rejects. The maintenance manager noted: “The 3CP260.60-1 gave us the processing power and expansion flexibility to handle our most demanding applications. The PCMCIA card swap feature alone has reduced our recipe changeover time from 45 minutes to under 5.” This scenario underscores a critical industry pain point: in modern automation, the CPU must not only process logic quickly but also accommodate evolving communication needs and growing program memory requirements. The B&R 3CP260.60-1 addresses this with its modular architecture, allowing system integrators to scale functionality precisely as application demands grow.
Parameters
| Main Parameters | Value / Description |
|---|---|
| Product Model | B&R 3CP260.60-1 (CP260 Central Unit) |
| Manufacturer | B&R Industrial Automation (now part of ABB) |
| Product Category | CPU Module / Central Processing Unit |
| Series | B&R System 2005 |
| Slot Requirement | 2 slots in main rack (positions 3 + 4) |
| Typical Instruction Cycle Time | 0.2 µs — rapid processing for time-critical control loops |
| DRAM | 4 MB — standard working memory for program execution |
| System SRAM | 174 KB — for operating system and system data |
| User SRAM | 850 KB — for user program and data variables |
| System PROM | 512 KB FlashPROM — firmware storage |
| User PROM | 512 KB FlashPROM — non-volatile program storage |
| PCMCIA Interface | 1 slot, supports Type I cards (max 3 mm height), up to 16 MB SRAM or FlashPROM — enables memory expansion and field program exchange |
| Insert Slots | 2 (for interface modules) — flexible integration of various bus and network systems |
| Standard Communication | RS232 (IF1), 9-pin DSUB, max 15 m / 19200 Baud — for programming and basic connectivity |
| NC-Synchronization | Yes — supports motion control applications |
| Real-Time Clock | Nonvolatile, 1s resolution — maintains time during power loss |
| Power Consumption (5V) | Max 5.7 W |
| Power Consumption (24V) | Max 2.3 W |
| Total Power Consumption | Max 8 W (without memory cards and interface modules) |
| Data Buffering | ≥4 years with backup battery in backplane; ≥2.5 years with AC240 battery module; ≥2 months with NiMH battery |
| Battery Monitoring | Yes — provides early warning of low battery status |
| Status Display | LEDs: READY, RUN, MODE, ERROR, BAT — immediate visual feedback on module status |
| Reset Button | Yes — for manual system restart |
| Certifications | CE, UKCA, cULus E115267 Industrial Control Equipment |
| Dimensions | B&R 2005 double-width |
Technical Principles and Innovative Values
Innovation Point 1: High-Speed Processing with 0.2 µs Instruction Cycle Time
The B&R 3CP260.60-1 achieves a typical instruction cycle time of 0.2 µs, enabling deterministic control even in applications with demanding response requirements such as high-speed packaging, printing, and material handling. This rapid execution ensures that critical control loops—such as PID regulation and motion synchronization—are updated with minimal latency, maintaining product quality and process stability even at maximum throughput.
Innovation Point 2: Modular Memory Architecture with PCMCIA Expansion
The CPU incorporates a multi-tier memory structure: 4 MB DRAM for active program execution, 850 KB SRAM for user data, and 512 KB FlashPROM for non-volatile program storage. The PCMCIA interface supports memory cards up to 16 MB (SRAM or FlashPROM), allowing engineers to expand storage capacity based on project requirements. This design enables field program exchange via memory card swap—a feature that significantly simplifies software updates in distributed or remote installations without requiring a programming cable or laptop.
Innovation Point 3: Flexible System Integration with Two Interface Slots
The 3CP260.60-1 provides two insert slots for interface modules, supporting a wide variety of bus and network systems including CANopen, PROFIBUS, Ethernet, and others. This flexibility allows the CPU to adapt to diverse automation architectures—from simple standalone machinery to complex distributed control systems—without requiring hardware redesign. System integrators can mix and match interface modules to suit specific application needs, ensuring seamless connectivity with drives, HMIs, and higher-level control systems.
Innovation Point 4: Comprehensive Diagnostics and Data Integrity Protection
The module features LED status indicators (READY, RUN, MODE, ERROR, BAT) providing immediate visual feedback on operational state, program execution, and battery health. The nonvolatile real-time clock maintains accurate time during power interruptions, while the battery-backed SRAM preserves critical program variables for extended periods—up to 4 years with the backplane battery. Battery monitoring ensures early warning of low battery status, preventing unexpected data loss during power cycles.
