Allen-Bradley 1794-OF4IXT Analog Output Module

Allen-Bradley 1794-OF4IXT Flex I/O-XT is a four-channel, isolated analog output module for the FLEX I/O-XT system. It provides four independent channels that can be configured to output either current or voltage signals, with a per-channel 16-bit resolution (15 bits plus sign) for precise control. The XT variant supports extended temperature operation, typically -20 to +70°C, making it suitable for harsher industrial environments. Each channel offers isolation from the backplane and from other channels, helping protect controllers and improve signal integrity in distributed I/O networks. The module delivers conversion times of 2.5 ms or 5.0 ms per channel, enabling responsive analog control loops, and voltage outputs can drive up to 750 Ω loads (with defined loading constraints for current outputs). It mounts in an open-style faceplate on a DIN rail and is designed to integrate with Rockwell Automation FLEX I/O backplanes used by ControlLogix and CompactLogix controllers. Common applications include process control, valve actuation, motor control, and instrumentation signaling where multi-channel, precise analog output is required in distributed automation architectures.