Product Description:

The 3IF681.96 interface module is produced by B&R Automation for the System 2005 Controllers series. The module provides configurable communication paths so that a controller rack can exchange data with field instruments and higher-level networks. Within an automation cabinet, it occupies a dedicated slot alongside CPU units, translating local sensor information and drive signals into packets that match the expected protocol timing of the control system. By adding this module, the base controller receives Ethernet and serial channels required for machine coordination.

At the hardware level, the board draws 1.65 W from the 5 V backplane, so its thermal contribution inside the enclosure is low. Network traffic enters through a single RJ45 Socket, and the physical medium is Twisted Pair, which minimizes electromagnetic interference on long cable runs. Signaling follows the 10BASE-T standard, guaranteeing compatibility with legacy 10 Mbps segments that are still common in deterministic factory networks. Only one Ethernet line is present, and the 1-port configuration reduces address conflicts and simplifies topology planning. Internal logic schedules message arbitration and forwards frames directly to the controller memory image without requiring external switches or repeaters.

Mechanical integration follows the Insert Slot mounting style, allowing the card to slide into the rack without additional fasteners and to lock against the backplane connector. The front-panel receptacle is Female, so patch cords terminate without adapters and maintain strain-relief clearance. For serial communication, the board can operate with a CP260 or IF260 host and exposes one RS232 channel. The supported controller can use that single port for parameter transfers and diagnostic echo without burdening the Ethernet bandwidth.