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-LI Loop Controller Interface Module is designed for seamless integration of a PLC with up to 15 loop PID controllers via an RS-485 serial link, enabling robust communication over a span of up to 4000 cable feet. It operates efficiently from a single slot in the 1771 I/O chassis, drawing 1.2A at 5V DC from the backplane, and supports half-duplex communication at 4,800 Baud with a loop update time of approximately 2 seconds. With a temperature operating range from 0 to 60°C and humidity tolerance of 5-95% non-condensing, the 1771-LI is well-suited for industrial environments, ensuring reliable functionality across a variety of conditions.