3IF797.9-1 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The 3IF797.9-1 is an aPCI interface module manufactured by B & R Automation for the System 2005 Controllers series. It features a CAN bus interface with a maximum distance of 1000 meters and a maximum data rate of 500 kbit/s. The module includes an RS232 serial interface supporting up to 115.2 kbit/s over 900 meters and has a total power consumption of 1.96 W.
Internal Product Review
The 3IF797.9-1 is a highly practical aPCI interface module for System 2005 controllers with CAN bus connectivity. IP20 protection and low total power consumption of 1.96 W support efficient cabinet installation and stable operation. The 500 kbit/s CAN rate makes this module a strong choice for dependable controller networking.
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Product Description:
The 3IF797.9-1 is an aPCI interface module manufactured by B&R Automation for the System 2005 Controllers series. The card occupies a single controller slot and supplies multiple fieldbus channels so the main CPU can communicate with remote I/O, drives, and diagnostic terminals within automated production lines. By concentrating CAN, serial, and X2X master functions on one board, it streamlines wiring and reduces overall rack footprint in industrial automation systems. This arrangement also leaves more space in the controller for processing, motion, or additional communication modules.
Internally, the module draws 0.68 W from the 3.3 V plane and 1.28 W from the 5 V plane; together they add up to 1.96 W, which helps limit heat buildup in densely packed cabinets. A 4-pin male multipoint plug terminates the embedded CAN bus, and arbitration remains reliable at up to 500 kbit/s through integrated transceivers and proper line matching. These operating values suit mid-range motion networks where stable telegram timing matters more than maximum throughput. The aPCI form factor also allows automatic resource assignment by the host without DIP-switch configuration, which simplifies installation inside compatible controller racks.
In addition to its power budget and CAN capability, the card offers a service port based on RS232, presented on a 9-pin male D-sub for straightforward field connection. This channel sustains 115.2 kbit/s over cable runs reaching 900 m, supporting operator terminals placed across large factory floors and maintenance access points that are not mounted beside the control cabinet. When the plant layout is larger, the CAN line can stretch 1000 m by selecting suitable bit rates, while a second 4-pin male multipoint connector acts as an X2X Link master and bridges remote stations with gaps up to 100 m. The housing complies with IP20, so installation inside a protected control enclosure is required.
