Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | B&R |
| Model | 3CP152.9 |
| Module designation | CP152 |
| Product family | System 2005 |
| Module type | CPU, double-width |
| Dual-ported RAM | 64 KB SRAM |
| System RAM | 256 KB SRAM |
| Application memory | Separately ordered |
| Supported application memory | ME950, ME953, ME960, ME963 |
| RS232 interface | 1 |
| RS232 maximum baud rate | 64 kbaud |
| Additional serial interface | 1 electrically isolated RS485/RS422/TTY |
| Network capability | RS485/RS422 network-capable |
| Expansion interface | 1 expansion master interface |
| Instruction cycle time | 0.8 μs |
| Power consumption | Maximum 6 W, including application memory |
| Real-time clock | Nonvolatile, 1-second resolution |
| Expansion master function | Supported |
| NC synchronization | Not supported |
| Certification | C-UL-US listed; CE and UKCA listed in current product information |
The manufacturer confirms the CPU architecture and interface configuration. Application memory is not included as a standard part of the CPU specification and must be selected separately.
Product Introduction
The B&R 3CP152.9 is the CP152 central processing unit for the B&R System 2005 automation platform. It provides the processing resources required to execute PLC applications, communicate with external devices through serial interfaces, and manage an expansion rack through its dedicated expansion master interface.
Its combination of RS232 and electrically isolated RS485/RS422/TTY communication supports established industrial control architectures. The separately ordered application memory is an important procurement consideration because a replacement CPU does not automatically include the original machine program or memory configuration.
3CP152.9
Application Scenarios & Field Pitfalls (Engineer’s Perspective)
A legacy PLC replacement can become complicated when the original CPU is still available but its application memory, expansion configuration, or communication settings are undocumented. Installing a 3CP152.9 without confirming these details may result in a controller that powers up but cannot resume the machine’s original operating sequence.
Typical application scenarios include:
- Manufacturing automation: Central program execution for established B&R System 2005 machine-control systems.
- Distributed I/O systems: Managing supported expansion racks through the CPU’s expansion master interface.
- Industrial equipment communication: Connecting serial devices through RS232 or electrically isolated RS485/RS422/TTY interfaces.
- Legacy machine maintenance: Replacing a failed CP152 while retaining the existing System 2005 architecture.
Field pitfalls
1. Application memory must be checked separately. The CPU’s 64 KB dual-ported SRAM and 256 KB system SRAM are not equivalent to the separately ordered application memory. B&R identifies ME950, ME953, ME960, and ME963 as supported application-memory options. Confirm the original memory module, program size, and operating-system requirements before purchasing.
2. Do not confuse CP152 variants. The 3CP152.9 supports an expansion master interface but does not support NC synchronization. The 3CP152.90-2 adds NC synchronization. The 3CP153.9 does not provide the expansion master interface. These differences matter when matching an existing machine configuration.
3. Verify serial interface configuration. The second interface supports electrically isolated RS485, RS422, or TTY operation. Confirm the actual electrical mode, wiring, termination, and communication parameters. The presence of RS485/RS422 capability does not establish the application protocol used by the machine.
For replacement work, record the existing CPU configuration, application-memory part number, expansion-rack connections, and serial communication settings before removing the original controller. Incoming inspection should include connector condition, PCB inspection, battery status, and a functional startup test.
Related Products
- 3CP152.90-2 — CPU variant with expansion master interface and NC synchronization support. Not identical to the standard 3CP152.9.
- 3CP153.9 — System 2005 CPU with RS232 and isolated //TTY interfaces, but without the expansion master interface.
- 3ME950.90-1 — System 2005 application memory option with 64 KB SRAM and 128 KB FlashPROM.
- 3ME953.90-1 — System 2005 application memory option with 256 KB SRAM and 512 KB FlashPROM.
- 3ME960.90-1 — Application memory option with 64 KB SRAM and 256 KB FlashPROM.
- 3ME963.90-1 — Application memory option with 512 KB SRAM and 1 MB FlashPROM.
- 3ME965.90-1 — Application memory option with 1 MB SRAM and 2 MB FlashPROM.
- 3BP151.4 — System 2005 main base plate with 12 slots.
- 3BP152.4 — System 2005 base plate with nine slots.
- 3EX350.6 — System 2005 local I/O master controller for managing supported I/O expansion racks.
These products are documented within the B&R System 2005 hardware family. Application memory selection and expansion hardware must be matched to the original machine configuration.
Procurement and quality-control note: Specify the full part number 3CP152.9, not just . Confirm whether the application memory is included, since it is ordered separately in the manufacturer’s configuration. For surplus replacements, request photographs of the CPU label and expansion connector, confirmation of serial-interface operation, and a startup test. A functioning CPU without the correct application memory and machine program is not a complete operational replacement.
