Industrial Automation Co. is NOT an Authorized Rockwell Distributor - we have our own unique inventory and sourcing relationships. Review our Reseller notice, here.

The Allen-Bradley 1771-QB is a versatile linear positioning module designed for the 1771 PLC platform, supporting dual independent axes for advanced motion and hydraulic control. With its rapid 2-millisecond update rate, this module utilizes PID and feed-forward control algorithms to manage velocities up to 327.67 inches per second. It interfaces with various linear displacement transducers, and directly connects to servo-controlled valves or motor controllers, offering an impressive 12-bit resolution and an output range of +/- 1.0 to +/- 100mA and +/- 0.1 to +/- 10 Volts. The 1771-QB monitors several critical functions, all contained in a single-slot backplane design suitable for the 1771 Universal I/O chassis, and it operates efficiently between -25 to 60 degrees Celsius, conforming to rigorous safety standards for both hazardous and non-hazardous environments.