3IF787.9-1 Network and Fieldbus Module

The 3IF787.9-1 is a high-performance aPCI-based network and fieldbus module developed by B&R, designed exclusively for the System 2005 control platform. It integrates dual industrial communication interfaces to serve as a core expansion unit for controllers, enabling multi-protocol data interaction and cross-device interconnection in industrial automation systems. Manufactured in Austria, the module features compact mechanical design, high integration density and excellent anti-interference capability, supporting stable operation in complex and harsh industrial environments.

The official product model is 3IF787.9-1, classified as an aPCI interface communication module within B&R’s product portfolio, and it maintains full compatibility with the System 2005 rack system. Adopting a plug-in structure, the module can be directly installed into standard aPCI slots of matching controllers. It has compact overall dimensions and a net weight of approximately 0.5 kg, which effectively saves cabinet space and facilitates on-site layout. As a standard communication accessory for medium and large industrial control projects, it complies with international industrial electronic component standards and delivers reliable quality and universal compatibility.

As a dedicated network and fieldbus expansion module for B&R industrial controllers, the 3IF787.9-1 is designed to expand the communication capacity of the main controller and build multi-type industrial communication links. It is equipped with one independent POWERLINK fieldbus interface, which can be configured as either a managing node or a controlled node in the network to construct high-speed real-time fieldbus networks for distributed control systems. Meanwhile, it is integrated with one CAN bus interface, which is mainly used for data exchange with CAN-based field devices, sensor units and auxiliary control equipment. Built-in send and receive object buffers optimize data processing efficiency. The module effectively breaks the interface limitations of the host controller and realizes integrated networking of fieldbus and upper computer communication.

For fieldbus communication, the POWERLINK interface complies with corresponding international standards and supports a transmission rate up to 100 Mbit/s, featuring outstanding real-time performance and stable transmission quality. It is adaptable to linear, star and other common network topologies. The CAN bus interface supports a maximum transmission rate of 500 kbps and conforms to standard CAN bus specifications, ensuring good compatibility with various CAN industrial devices. All core communication circuits of the module adopt electrical isolation design, which can isolate external electrical interference and surge signals, and protect the safe operation of the module and the entire control system. The module is powered directly by the controller’s aPCI bus without requiring an additional external power supply, simplifying on-site wiring work. It is also fitted with status indicator LED lights to help users check operating status and conduct fault diagnosis quickly. The operating temperature range covers 0 to 60 degrees Celsius, adapting to conventional industrial temperature conditions.

The 3IF787.9-1 adopts standard aPCI slot plug-in installation, and no extra fixing components are required for the main unit. For on-site wiring, industrial Ethernet cables for POWERLINK communication and standard CAN bus cables are applicable. It is recommended to select original B&R cables to guarantee long-term communication stability. The CAN interface of the module requires terminal block connection, and the TB704 terminal block is a necessary matching accessory that needs to be purchased separately. This module can be flexibly combined with various CPU modules and I/O modules of the System 2005 series to form a complete industrial control and communication system.

This network and fieldbus module is widely applied in industrial scenarios that demand multi-protocol communication. It is commonly used in automated production lines, packaging machinery, textile equipment, 3C manufacturing equipment and industrial robot systems. It also suits industrial sectors such as food and pharmaceutical machinery that have strict requirements on communication real-time performance and stability. Relying on the dual communication capabilities of POWERLINK real-time fieldbus and CAN bus, the module achieves seamless data exchange between controllers, field actuators, remote I/O units and upper monitoring equipment, and serves as a key component for building intelligent and integrated industrial automation systems.

Before installation, ensure the connected controller is fully powered off to avoid electrostatic damage and short-circuit faults. Insert the module into the designated aPCI slot and lock it firmly to prevent poor contact caused by equipment vibration. After installation, carefully inspect the connection of all cables and terminals to ensure correct and reliable wiring. The module should be installed away from strong electromagnetic interference sources, humid areas and heavily dusty environments. For daily maintenance, regular inspection of loose interfaces, aging cables and oxidized terminals is sufficient. The product comes with a standard warranty period, and it is advised to use original parts for replacement and maintenance to maintain the overall performance and stability of the control system.