
Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | 3IF787.9 |
| Manufacturer | B&R Industrial Automation (ABB Group) |
| Product Type | aPCI Interface Module |
| Slot Type | aPCI Insert (e.g., CP360) |
| Interfaces | 1 x ETHERNET POWERLINK, 1 x CAN Bus |
| POWERLINK Interface | 100 Mbps, 100 Base-T (ANSI/IEEE 802.3), Shielded RJ45 |
| POWERLINK Node Function | Managing or Controlled Node |
| POWERLINK Cable Length | Max. 100 m (Segment Length) |
| CAN Bus Interface | 4-Pin Multipoint Connector, SJA 1000 Controller |
| CAN Bus Max. Transfer Rate | 500 kbps (Bus Length ≤60 m) |
| CAN Bus Distance | Max. 1000 m |
| CAN Bus Rate Options | 500/250/50 kbps depending on bus length |
| Object Buffers | 20 KB In/Out (Firmware Version ≥ V50) |
| Power Consumption | Total 3.0 W (2.5 W @ 3.3V, 0.5 W @ 5V) |
| Electrical Isolation | Yes (PLC – IFx, IF1 – IF2) |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -25°C to +70°C |
| Relative Humidity | 5% to 95%, Non-Condensing |
| Ingress Protection | IP20 |
| Certification | CE, C-UL-US, GOST-R |
| Weight | Approx. 0.2 kg |
| Dimensions | 13.00 × 7.00 × 2.00 cm |
Main Features and Advantages
Dual-Protocol Connectivity for Versatile Integration: The B&R 3IF787.9 offers a powerful combination of ETHERNET POWERLINK and CAN bus interfaces, making it an ideal solution for systems that require both high-speed real-time communication and robust device-level networking. The POWERLINK interface of the B&R 3IF787.9 supports 100 Mbps data rates over standard 100 Base-T Ethernet, ensuring deterministic performance for motion control and synchronization applications . Meanwhile, the CAN interface provides a proven, reliable communication channel for connecting sensors, actuators, and other field devices, with support for various transmission rates depending on bus length requirements . This dual-protocol capability allows the B&R 3IF787.9 to serve as a unified communication hub, reducing hardware complexity and simplifying system design.
Flexible Node Configuration: The B&R 3IF787.9 can be configured as either a managing node (network manager) or a controlled node on the POWERLINK network, providing exceptional deployment flexibility . When configured as a managing node, the B&R 3IF787.9 can take full control of the POWERLINK network, managing communication cycles and coordinating multiple devices. In controlled node mode, the B&R 3IF787.9 seamlessly integrates into an existing POWERLINK network managed by another controller . This flexibility makes the B&R 3IF787.9 suitable for a wide range of applications, from simple data acquisition systems to complex, multi-axis motion control architectures. The B&R Automation Studio environment provides intuitive configuration tools that simplify the setup process for the B&R 3IF787.9, regardless of its operational role.
Robust Data Handling and Diagnostics: The B&R 3IF787.9 is equipped with substantial object buffers of up to 20 KB for both transmit and receive directions, ensuring efficient data handling even in high-traffic scenarios . The module incorporates comprehensive diagnostic capabilities through both hardware and software status indicators. Status LEDs for the CAN interface (RXD, TXD) provide real-time visual feedback on data transmission activity, while the POWERLINK interface features status, Tx, Rx, and L/C LEDs for detailed network diagnostics . The B&R 3IF787.9 also offers full electrical isolation between the PLC and interfaces, as well as between the CAN and POWERLINK interfaces themselves, ensuring robust operation and protection against ground loops and electrical interference in industrial environments .
Network-Capable and Electrically Isolated Design: The B&R 3IF787.9 supports network-capable topologies, allowing multiple modules to be connected and configured in a single system . The CAN interface supports bus lengths up to 1000 meters with appropriate termination resistors, while the POWERLINK interface supports standard Ethernet cabling with segment lengths up to 100 meters . The electrically isolated design of the B&R 3IF787.9 ensures reliable operation in noisy industrial environments, protecting both the host system and connected devices from potential damage. This combination of network capability and isolation makes the B&R 3IF787.9 an ideal solution for distributed automation architectures.







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