Integrating standard K-bus I/O terminals into high-speed CANopen fieldbus networks, the Beckhoff BK5151 offers a compact, cost-efficient interface solution. This unit acts as a gateway, mapping standard terminal signal channels to the CANopen communication layer and process image. The complete Beckhoff BK5151 system supports automatic baud rate configuration and diagnostic feedback, ensuring seamless integration into distributed control systems.
| Parameter | Specification |
|---|---|
| Manufacturer | Beckhoff |
| Model / SKU | BK5151 |
| Fieldbus Protocol | CANopen |
| Bus Interface Connection | 9-pin D-sub socket |
| Baud Rate | Up to 1 Mbaud (automatic detection) |
| Number of Bus Terminals | 64 (up to 255 with K-bus extension) |
| Internal K-Bus Current | 1750 mA |
| Power Supply Voltage | 24 V DC (-15% / +20%) |
| Diagnostic LEDs | 2 x power supply, 2 x K-bus, 2 x fieldbus |
| Protection Rating | IP20 |
| Operating Temperature Range | -25 to +60 degC |
| Storage Temperature Range | -40 to +85 degC |
| Hazardous Area Certifications | ATEX: II 3G Ex ec IIC T4 Gc / IECEx: Ex ec IIC T4 Gc |
| Net Weight | 100 g |
| Shipping Weight (Calculated) | 1.0 kg |
The BK5151 replaces older BK5120 couplers in typical architectures. However, configure your software environments carefully: any hardware modifications or firmware transitions from standard BK series to the compact "BK5151" require an updated EDS (Electronic Datasheet) file imported directly into your CANopen master configuration utility to correctly register the updated device ID and dynamic mapping options.
When sizing your system, calculate the total current consumption of the connected K-bus terminals. Although the integrated power unit outputs 1750 mA, exceeding this threshold will trigger a K-bus undervoltage alarm, interrupting communication. If your I/O array draws higher currents, insert a PE2001 power feed terminal downstream on the rail to supply supplemental voltage.
Always ensure that both physical ends of the CANopen network bus segment are terminated with a standard 120-Ohm resistor connected between CAN-H (pin 7) and CAN-L (pin 2). Omission of physical termination is a primary cause of packet collisions, CRC errors, and intermittent bus-off states. Use only double-shielded twisted pair copper media for field connections.
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Returns & Warranty
Manufacturer: BECKHOFF
Product No.: BK5151
Country of origin:Germany
Product Type: CANopen Bus Couplers
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
Integrating standard K-bus I/O terminals into high-speed CANopen fieldbus networks, the Beckhoff BK5151 offers a compact, cost-efficient interface solution. This unit acts as a gateway, mapping standard terminal signal channels to the CANopen communication layer and process image. The complete Beckhoff BK5151 system supports automatic baud rate configuration and diagnostic feedback, ensuring seamless integration into distributed control systems.
| Parameter | Specification |
|---|---|
| Manufacturer | Beckhoff |
| Model / SKU | BK5151 |
| Fieldbus Protocol | CANopen |
| Bus Interface Connection | 9-pin D-sub socket |
| Baud Rate | Up to 1 Mbaud (automatic detection) |
| Number of Bus Terminals | 64 (up to 255 with K-bus extension) |
| Internal K-Bus Current | 1750 mA |
| Power Supply Voltage | 24 V DC (-15% / +20%) |
| Diagnostic LEDs | 2 x power supply, 2 x K-bus, 2 x fieldbus |
| Protection Rating | IP20 |
| Operating Temperature Range | -25 to +60 degC |
| Storage Temperature Range | -40 to +85 degC |
| Hazardous Area Certifications | ATEX: II 3G Ex ec IIC T4 Gc / IECEx: Ex ec IIC T4 Gc |
| Net Weight | 100 g |
| Shipping Weight (Calculated) | 1.0 kg |
The BK5151 replaces older BK5120 couplers in typical architectures. However, configure your software environments carefully: any hardware modifications or firmware transitions from standard BK series to the compact "BK5151" require an updated EDS (Electronic Datasheet) file imported directly into your CANopen master configuration utility to correctly register the updated device ID and dynamic mapping options.
When sizing your system, calculate the total current consumption of the connected K-bus terminals. Although the integrated power unit outputs 1750 mA, exceeding this threshold will trigger a K-bus undervoltage alarm, interrupting communication. If your I/O array draws higher currents, insert a PE2001 power feed terminal downstream on the rail to supply supplemental voltage.
Always ensure that both physical ends of the CANopen network bus segment are terminated with a standard 120-Ohm resistor connected between CAN-H (pin 7) and CAN-L (pin 2). Omission of physical termination is a primary cause of packet collisions, CRC errors, and intermittent bus-off states. Use only double-shielded twisted pair copper media for field connections.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|
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