BECKHOFF

BECKHOFF FC5121 CANopen Master/Slave Card

SKU FC5121

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: BECKHOFF

  • Product No.: FC5121

  • Country of origin:Germany

  • Product Type: Fieldbus Cards

  • Payment: T/T, Western Union

  • Weight: 500g

  • Dimensions: appro x . 100 mm x 130 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Integrating PC-based control systems directly with CANopen fieldbus networks, the Beckhoff FC5121 interface card provides a high-performance PCI Express (PCIe) connection for demanding industrial automation environments. This single-channel CANopen master/slave card enables seamless communication between industrial PCs and distributed I/O, drives, or other CANopen-compliant field devices. Operating within the TwinCAT software environment, the module supports both master and slave configurations, offering flexible integration into diverse control architectures without compromising processing speed.

Features

  • Single-channel CANopen interface designed for standard PCI Express x1 slots.
  • Supports adjustable data transfer rates ranging from 10 kbaud up to 1000 kbaud.
  • Galvanically decoupled 9-pin D-sub connection to protect host hardware from voltage spikes.
  • Integrated, switchable termination resistor for simplified network topology configuration.
  • Onboard hardware diagnostics via dual LED indicators per channel for rapid status monitoring.
  • Process image capacity of up to 4 kbytes total input and output data.

Applications

  • Industrial PC-based automation and control systems.
  • Distributed I/O and motion control integration in manufacturing lines.
  • Machine building and factory automation systems requiring CANopen connectivity.
  • Test benches and real-time simulation environments.

Technical Specifications

Manufacturer BECKHOFF
Part Number/Model FC5121
Fieldbus Type CANopen
PC Interface PCI Express x1 (PCIe x1)
Number of Channels 1
Data Transfer Rates 10, 20, 50, 100, 125, 250, 500, 800, 1000 kbaud
Bus Interface 1 x D-sub socket, 9-pin, galvanically decoupled
Termination Resistor Switchable (onboard)
Hardware Diagnostics 2 LEDs per channel
Process Image Bit Width Max. 4 kbyte input and output data (total)
Operating Temperature 0 to +55 degC
Software Driver TwinCAT 2.11 R3 and higher
Dimensions Approx. 100 mm x 130 mm

Connections and Interfaces

Connector Pin Function / Signal
Pin 2 CAN_L (CAN low bus line)
Pin 3 CAN_GND (CAN ground)
Pin 7 CAN_H (CAN high bus line)
Pin 9 CAN_V+ (Optional external positive supply)
Pins 1, 4, 5, 6, 8 NC (Not connected / Reserved)

Installation Guidelines

  • Ensure the Industrial PC is completely powered down and disconnected from the main power supply before inserting the card.
  • Insert the card firmly into a free PCI Express x1 (or higher) slot and secure the bracket to the PC chassis.
  • Configure the switchable termination resistor depending on the card's position in the CANopen network topology (enable if the card is at the physical end of the bus line).
  • Use shielded twisted-pair cabling compliant with CANopen standards to minimize electromagnetic interference.
  • Ground the cable shield at both ends where possible, or according to local electromagnetic compatibility (EMC) guidelines.

Compliance and Certifications

  • CE

FAQ

Does the Beckhoff FC5121 support both master and slave modes?

Yes, the FC5121 can be configured as either a CANopen master or a CANopen slave within the TwinCAT environment.

What PC interface slot is required for the FC5121?

The card requires a standard PCI Express (PCIe) x1 slot, but it can also be installed in x4, x8, or x16 PCIe slots.

Is there an integrated termination resistor on the FC5121?

Yes, the card features an onboard, switchable termination resistor that can be enabled or disabled via a physical switch on the card.

View all FAQs →

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Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical 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 .

TECHNICAL SPECIFICATIONS

Country of origin
Germany

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