Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 7CP476.60-1 |
| CPU family | B&R 2003 |
| Module ID | CP476 |
| Module width | Double-width |
| Mounting position | Slots 1 + 2 |
| Supply voltage | 24 VDC nominal |
| Permitted voltage range | 18–30 VDC |
| Power consumption | 20 W listed in System 2003 catalog |
| I/O supply output | 12.5 W |
| User RAM | 750 KB SRAM |
| System PROM | 512 KB FlashPROM |
| User PROM | 1.5 MB FlashPROM |
| Serial interface | 1 × RS-232, 9-pin D-sub |
| CAN interface | 1 × CAN, 9-pin D-sub; electrically isolated |
| CAN transfer rate | Up to 500 kbit/s |
| RS-232 transfer rate | Up to 57.6 kbit/s |
| Local module capacity | Four screw-in module slots |
| Maximum I/O points | Up to 272 digital / 80 analog points, configuration-dependent |
| Protection rating | IP20 |
| Operating temperature | 0 to +60°C horizontal; 0 to +50°C vertical |
| Storage temperature | -25 to +60°C |
| Relative humidity | 5–95%, non-condensing |
| Backup | 3 V / 950 mAh lithium battery |
| Watchdog | Hardware watchdog |
| Installation | B&R System 2003 double-width module position |
The voltage, interface, environmental, and mechanical details are drawn from the System 2003 catalog documentation. The OEM product page confirms the core model identity, memory, interfaces, 24 VDC supply, and expansion provisions.
Product Introduction
The B&R 7CP476.60-1 CP476 is a central processing module designed for the B&R System 2003 PLC platform. Its processor section executes the control program while an additional I/O processor handles I/O data points. The module provides 750 KB of SRAM and 1.5 MB of user FlashPROM, with a separate system PROM allocation. Its hardware watchdog and internal voltage monitoring support controller diagnostics and fault detection.
7CP476.60-1
The CP476 occupies two module positions in the System 2003 rack and provides four slots for screw-in modules. Its RS-232 interface supports serial communication and engineering access, while its electrically isolated CAN interface supports networked devices. The system bus provides the connection path for expansion modules. Published system documentation lists a maximum configuration of 272 digital and 80 analog I/O points; this is a platform configuration limit, not a guarantee that every installation can reach that capacity without checking its module arrangement and addressing rules.
Application Scenarios and Field Pitfalls
Typical applications
- Legacy System 2003 PLC installations in machine automation and industrial process equipment.
- Control systems using local digital and analog screw-in I/O modules.
- CAN-connected equipment where electrical isolation between the CPU and CAN interface is required.
- Existing ACOPOS-related installations where the CP476 is part of the documented PLC configuration.
Engineering checks before replacement
- Confirm the controller platform. The 7CP476.60-1 belongs to System 2003. It is not a direct replacement for a B&R System 2005 or X20 CPU.
- Check the Automation Studio project. Confirm the hardware configuration, CPU support, software version, and module definitions before installing replacement hardware. B&R lists hardware upgrades for Automation Studio V2.6, V3.0, and V4.0 for this CPU.
- Inspect the backup battery. The CPU uses a 3 V lithium battery for data buffering. Check battery condition and the effect of battery removal on retained data before servicing.
- Verify CAN wiring and node settings. Confirm bus termination, node addressing, connector wiring, and communication parameters. The electrically isolated CAN interface does not eliminate the need for correct bus installation.
- Check mounting orientation and cooling. The published operating-temperature limit is lower for vertical installation than for horizontal installation.
Related Products and Accessories
| Model | Relationship |
|---|---|
| 4A0006.00-000 | 3 V / 950 mAh lithium backup battery |
| 0AC201.91 | Lithium battery package |
| 7AC911.9 | CAN bus connector |
| 0AC912.9 | CAN bus adapter with one CAN interface |
| 0AC913.92 | CAN bus adapter with two CAN interfaces |
| 0G0001.00-090 | RS-232 PC-to-PLC / Panelware online cable |
These are documented accessories or infrastructure components, not alternative CPU models. Confirm connector and accessory revisions against the installed hardware before ordering.
Procurement and Quality Control
The 7CP476.60-1 is legacy System 2003 hardware. A secondary catalog listing reports it as discontinued, but the B&R product page still provides product documentation and hardware-upgrade downloads. Treat current production status and repair availability as items requiring direct confirmation.
Before purchasing, request:
- A clear photograph of the complete front label and material number.
- Photographs of the connectors, PCB, and module edges.
- Confirmation of new, refurbished, or used condition.
- Battery status and whether the unit retains its configuration.
- Power-up and diagnostic LED test results.
- RS-232 and CAN communication test evidence, where available.
- Confirmation that the supplied unit is exactly 7CP476.60-1, not a different System 2003 CPU.
Replacement recommendation: Match the complete material number and verify the existing project configuration before installing the module. A visually similar B&R CPU should not be treated as interchangeable without documented hardware and software compatibility.
