7XX426.50-1 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 7XX426.50-1 is part of the 7XX Bus Controllers series and operates on a 24 VDC supply with a power consumption of 5.0 watts. It features 5 analog inputs and 3 analog outputs, each with a 12-bit resolution, as well as 8 digital inputs and 8 digital outputs. This unit offers IP20 protection and supports potentiometer resolution up to 14 bits with a 4.5 VDC supply.
Internal Product Review
The 7XX426.50-1 is a B & R Automation bus controller that stands out with 5 analog inputs and 3 analog outputs, along with 8 digital inputs and 8 digital outputs. A ±10 V analog output range paired with 12-bit analog output resolution gives this unit precise and dependable signal handling for machine control.
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Product Description:
The 7XX426.50-1 is a bus controller manufactured by B&R Automation for the 7XX Bus Controllers series. Installed on a machine-level rail, it gathers multiple field signals and transmits them over the vendor’s X2X real-time backplane. This arrangement allows process data from sensors and actuators to be exchanged with higher-level PLCs without long parallel wiring runs. The unit consolidates analog, digital, and encoder feedback into a single deterministic network node for industrial automation systems.
The electronics are powered by a 24 VDC supply, and the internal circuitry draws only 5.0 W, which simplifies cabinet thermal calculations. The analog interface provides 5 inputs and 3 outputs for measurement and control tasks. Each output can source or sink signals across a ±10 V range. Analog conversion is performed with 12-bit resolution, providing steps of 4.88 mV. The differential input path presents an impedance of 20 MΩ, minimizing signal loading while maintaining measurement precision. Potentiometers can be wired directly because the module provides a regulated 4.5 VDC reference and resolves shaft position to 14 bits. An input filter attenuates unwanted high-frequency noise above 10 kHz. The internal X2X system has a minimum I/O scan time of 300 µs, keeping signal latency predictable during machine operation.
Discrete control is handled by 8 inputs and 8 outputs that receive or drive standard DC control signals. Encoder feedback is accepted at frequencies up to 30 kHz, allowing incremental position sensors to connect directly to the controller. The analog comparator has a response time of ≤200 µs, allowing threshold events to be flagged within a single network cycle. Output drivers can switch load currents at frequencies up to 100 Hz, making them suitable for relay coils and pneumatic valves. The digital and analog circuits share an IP20-rated housing. This enclosure protects against accidental contact with internal components when the controller is installed in a grounded control cabinet.
