Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | B&R |
| Model | 2EX301.5 |
| Module designation | EX301 |
| System | SYSTEM 2010 |
| Module type | I/O module |
| Function | I/O bus expansion slave |
| Backplane | BP202 |
| Interfaces | 1 expansion-master connection |
| Transmission medium | Dedicated expansion cable |
| Supported cable lengths | 1 m or 2 m |
| Power consumption | Maximum 3 W |
| Dimensions (H × W × D) | 285 × 40 × 185 mm |
| B&R identification code | $18 |
| CE approval | Yes |
| UKCA approval | Yes |
| UL certification | cULus E115267 |
Product Introduction
The B&R 2EX301.5 Expansion Slave is designed to extend the I/O bus architecture of B&R SYSTEM 2010 control installations. It divides the existing I/O bus into separate segments, providing a structured method of expanding distributed I/O arrangements within the automation system.
The EX301 connects to an expansion master through a dedicated expansion cable. Its BP202 backplane provides the corresponding module interface. This arrangement allows additional I/O sections to be incorporated into an existing SYSTEM 2010 installation without treating the EX301 as an independent controller or signal-processing module. The expansion cable is a separate order item and must be included in the installation plan.
2EX301.5
Application Scenarios and Field Considerations
Typical applications
- B&R SYSTEM 2010 I/O bus expansion.
- Distributed industrial control cabinets.
- Additional I/O segment installation.
- Legacy machine automation upgrades.
- Expansion of existing B&R control-system hardware.
Important engineering checks
- Master compatibility: Confirm that the installed expansion master is the correct EX302 configuration.
- Backplane: Verify the BP202 base module and its mechanical condition.
- Expansion cable: Confirm the required 1 m or 2 m cable. It is not included as an integral part of the module.
- Bus segmentation: Review the existing I/O bus layout before adding another segment.
- Power budget: Account for the module’s maximum 3 W consumption.
- System configuration: Check the controller’s hardware configuration and bus topology after installation.
Related Products and Accessories
| Model | Description |
|---|---|
| 2EX302.5 | EX302 Expansion Master |
| BP202 | Backplane for EX301 |
| 0G0010.00-090 | 1 m I/O bus expansion cable |
| 0G0012.00-090 | 2 m I/O bus expansion cable |
The EX302.5 is the corresponding expansion-master module. It has two slave connections, whereas the EX301.5 provides one master connection. They perform different functions and are not interchangeable.
Procurement and Quality Control
Before purchasing a replacement, verify:
- Complete model number:
2EX301.5. - EX301 module identification.
- BP202 backplane compatibility.
- Expansion connector condition.
- PCB condition and signs of overheating.
- Correct expansion cable length.
- Bus communication and segment recognition during functional testing.
Lifecycle consideration: Secondary industrial component listings report the 2EX301.5 as discontinued. Confirm current manufacturer support and availability before planning a long-term system expansion.
Procurement recommendation: Specify the complete B&R part number 2EX301.5 and separately identify the required expansion cable. A visually similar EX302.5 is not a substitute because it serves the expansion-master role rather than the slave role.
