Description
🔹 Product Overview
The BOSCH REXROTH 109-1129-3B05-01 is an HCP08 PLC control board and industrial circuit module designed for use in Bosch Rexroth automation and machine-control equipment.
This board is identified by the HCP08 designation and part number 109-1129-3B05-01. It is typically supplied as a replacement or maintenance component for legacy industrial control systems where maintaining the original hardware configuration is important.
For replacement applications, the exact board revision, connector arrangement, firmware, memory configuration, and system configuration should be checked against the existing unit before installation.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | BOSCH REXROTH |
| Model | 109-1129-3B05-01 |
| Product Series | HCP08 |
| Product Name | HCP08 PLC Control Board |
| Product Type | PLC / Industrial Control Circuit Board |
| Board Function | PLC Control / Machine Control |
| Board Identification | 109-1129-3B05-01 |
| Approx. Dimensions | 220 × 160 mm |
| Application | Industrial Automation / Machine Control |
| Condition / Status | Verify actual unit condition before installation |
⚙️ Key Features
- HCP08 industrial PLC control board
- Bosch Rexroth legacy automation hardware
- Part number 109-1129-3B05-01 for identification
- Suitable for replacement and maintenance applications
- Compact PCB format for cabinet-mounted control equipment
- Useful for maintaining existing machine-control configurations
- Appropriate for spare-parts inventory and long-term maintenance programs
- Exact hardware revision should be matched before commissioning
🏭 Industrial Automation Application
The HCP08 board can be used as part of an industrial PLC and machine-control architecture. In a legacy machine, the control board may interact with I/O assemblies, operator interfaces, drives, sensors, actuators, and other control electronics.
Typical applications may include:
- CNC and machine tools
- Industrial production machinery
- Material-handling equipment
- Factory automation systems
- Motion and machine-control cabinets
- Legacy Bosch Rexroth automation installations
- Replacement and repair of discontinued control hardware
Because older control systems can contain application-specific programming and configuration data, replacing a board should not be treated as a simple plug-and-play operation without checking the complete system configuration.
🔌 System Integration
Before installing the replacement board, compare the following items with the existing unit:
- Part number: 109-1129-3B05-01
- HCP08 identification
- Board revision and hardware markings
- Connector locations and pin assignments
- Memory or configuration components
- PLC program and machine parameters
- Associated I/O modules
- Drive and communication connections
- Cabinet power-supply configuration
- Existing fault and diagnostic records
If the removed board contains application-specific data, determine whether the replacement requires program transfer, parameter restoration, or configuration backup before returning the machine to production.
🛠️ Installation & Maintenance
Installation
- Disconnect and isolate system power before removing the original board.
- Record connector positions and cable identification before disassembly.
- Check the replacement PCB for visible damage, corrosion, contamination, or bent connectors.
- Confirm the complete part number and revision.
- Use appropriate ESD protection when handling the PCB.
- Install the board without applying excessive force to connectors or mounting points.
- Confirm all connections before energizing the cabinet.
Preventive Maintenance
Keep the control cabinet clean and dry. Inspect cooling airflow, fans, connectors, terminal connections, and PCB surfaces during scheduled maintenance.
For long-term spare storage, use an ESD-safe package and avoid environments with high humidity, condensation, dust, or strong electromagnetic interference.
🔍 Troubleshooting
PLC does not start
Check cabinet power, board seating, connectors, fuses, and the condition of the associated power supply before replacing additional components.
Machine reports a communication fault
Check communication cables, connectors, interface modules, configuration parameters, and the corresponding PLC or machine-control configuration.
I/O devices are not responding
Verify the I/O configuration and wiring first. Confirm that the replacement board matches the original hardware revision and system configuration.
Machine program or parameters are missing
Check whether the original board contained application-specific memory or configuration data. Restore the correct machine program and parameters only after confirming the correct backup.
Intermittent operation
Inspect connectors, oxidation, vibration-related connection problems, cabinet temperature, cooling airflow, and power quality.
✅ First-Operation Checklist
Before returning the machine to service:
- Confirm 109-1129-3B05-01 matches the required spare part
- Verify HCP08 identification
- Compare board revision and physical layout
- Inspect PCB and connectors
- Verify cabinet power supply
- Confirm I/O and communication wiring
- Restore required PLC program/configuration
- Check machine parameters
- Perform a controlled power-up
- Review diagnostic messages
- Test inputs and outputs
- Perform a low-risk machine test cycle
- Record the replacement and test results
❓ FAQ
Is 109-1129-3B05-01 a PLC board?
Yes. It is identified as a Bosch Rexroth HCP08 PLC board / circuit board used in industrial control equipment.
What is HCP08?
HCP08 is the product identification associated with this Bosch Rexroth control-board family. The exact machine function depends on the complete control-system configuration.
Can this board be used as a direct replacement?
Only when the part number, revision, connectors, system configuration, and application requirements match the original unit.
Is the board suitable for a legacy machine?
It can be particularly useful as a replacement or maintenance spare for existing HCP08-based equipment, subject to configuration verification.
Should the PLC program be backed up before replacement?
Yes. If the original control system contains application-specific programs or parameters, a verified backup should be available before removing the original board.
What should be checked when ordering?
Provide the complete part number, board revision, photographs of the identification labels, and the machine/control-system information whenever possible.
🔟 Related BOSCH REXROTH Models / Series
- HCP08 PLC Control Boards
- HCP08 Control PCB Series
- HCP08 Industrial PLC Modules
- Bosch Rexroth Legacy PLC Boards
- Bosch Rexroth CNC Control Boards
- Bosch Rexroth Machine Control Boards
- Bosch Rexroth Industrial Computer Boards
- Bosch Rexroth PLC Interface Boards
- Bosch Rexroth Control Circuit Boards
- Bosch Rexroth Legacy Automation Spare Boards
Related models and series are provided for reference only. They should not be considered direct substitutes for 109-1129-3B05-01 without technical verification.
📦 Spare-Parts & Lifecycle Planning
For legacy HCP08 control systems, maintaining a dedicated spare-board strategy can reduce downtime caused by unexpected PCB failure.
A practical inventory plan should include:
- Critical spare: Keep at least one verified replacement board for production-critical machines.
- ABC classification: Classify HCP08 boards used in high-impact machines as higher-priority inventory.
- Condition control: Record part number, revision, condition, test status, and storage location.
- Functional testing: Test replacement boards before placing them into emergency stock when suitable test equipment is available.
- Buffer stock: Increase the spare quantity when procurement lead time is long or the machine has no practical modern replacement.
- Last-time-buy planning: For obsolete or difficult-to-source control boards, consider securing additional verified units before inventory becomes limited.
- Traceability: Keep photographs and identification records for every stocked board to prevent ordering a visually similar but electrically incompatible version.
