1756-MVI56-LTQ - Modbus Data Parsing/Duplex Field Bus Transmit - Metal PLC Communication Interface Module ControlLogix Limitorque Valve Master Module The MVI56-LTQ is a single-slot 1756 backplane module that interfaces ControlLogix processors with up to 150 Limitorque valve actuators via RS-232/485/422, supporting baud rates from 1200-115200 with 1500-word register space and 800 mA@5.1V power consumption. Valve Automation & ESD Control This module polls valve position, status