3IF772 B & R Automation
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The B & R Automation 3IF772 is part of the System 2005 Controllers series and features a total power consumption of 2.0 W, with 1.8 W on 5 Vdc and 0.2 W on 3.3 Vdc. It offers two CAN interfaces supporting up to 500 kbit/s, one RS232 interface with a maximum transfer rate of 115.2 kbit/s, and uses an aPCI form factor. The device has a 4-pin male multipoint CAN connector, a 9-pin male DSUB for IF1, and an IP20 degree of protection.
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Product Description:
B&R Automation's 3IF772 communication module is part of the System 2005 Controllers series. Installed on the controller backplane, this board expands a machine's I/O map by adding dedicated network ports and serial connectivity. In an industrial automation setting, the module links sensors, drive inverters, and supervisory HMI stations to the central CPU so that process variables, setpoints, and diagnostic data can move reliably between subsystems. It is used when a compact interface card is needed to consolidate field traffic without relying on external gateways, helping maintain deterministic control cycles for packaging lines, conveyors, or assembly machines.
The mechanical profile follows the aPCI standard, permitting direct insertion into the System 2005 carrier rail without extra brackets. On its fieldbus side, the board provides 2 dedicated CAN channels. Each channel operates with a programmable arbitration clock up to 500 kbit/s, allowing medium-speed exchange of parameter blocks and status words. Both channels terminate on a 4-pin male multipoint connector that supports quick crimp wiring in control cabinets. During operation, the assembly is rated at IP20, indicating finger protection and suitability for closed enclosures. Internal galvanic separation between the two CAN paths prevents cross-coupling noise and helps maintain bus integrity when separate machine segments share the same power distribution.
The remaining resources focus on serial diagnostics and low power demand. A 3.3 V rail supplies only 0.2 W, while the 5 V backplane contributes 1.8 W, bringing the module's consumption to 2.0 W. This light draw eases heat management in densely packed racks. One RS232 port is present, routed to an If1 interface that uses a 9-pin male DSUB and supports full-duplex transfers to 115.2 kbit/s for programming terminals or barcode scanners. Isolation exists between interface sections, yet the PLC logic ground is directly linked to the RS232 channel, so common-mode paths must be considered when connecting external devices.
Frequently Asked Questions about 3IF772:
Q: How many CAN interfaces does the 3IF772 controller offer?
A: The 3IF772 supports up to 2 CAN interfaces, facilitating connectivity for multiple CAN devices.
Q: What is the maximum CAN bus transfer rate for the 3IF772?
A: The maximum CAN transfer rate on this unit is 500 kbit/s.
Q: Which connector is used for the RS232 interface on the 3IF772?
A: The RS232 interface uses a 9-pin male DSUB connector for device connection.
Q: What is the degree of protection for the 3IF772 module?
A: The 3IF772 has an IP20 degree of protection, suitable for environments without exposure to dust or moisture.
Q: How much power does the 3IF772 consume during operation?
A: This controller uses 2.0 W total power, with 0.2 W at 3.3 Vdc and 1.8 W at 5 Vdc.
