LDT sensor interface module for ControlLogix PLC

AMCI has released what it says is the only linear displacement transducer (LDT) position sensor interface module for the Rockwell Automation 1756 ControlLogix PLC.
By Renee Robbins November 11, 2009
AMCI LDT Sensor Interface Module for ControlLogix PLC
AMCI has released what it says is the only LDT interface module for Allen-Bradley’s ControlLogix PLC. Bringing Linear Displacement Transducer (LDT) position sensor data into the 1756 ControlLogix PLC, AMCI’s 2 channel 7252 LDT/MDT interface card can directly interface to two magnetostrictive sensors with PWM, control pulse, or start/stop signals. Features include latch inputs, onboard diagnostics, and Rockwell Automation licensed technology to ensure 100% compatibility.

The 7252 LDT interface module is a direct interface to common LDT sensors including those from MTS Temposonics, Balluff, Gemco, and Turck. If required, the module can use the coordinated system time (CST) to generate an interpolated position data value for high speed applications, and latch inputs are available for capturing the position data value. Because constant and consistent LDT positional readings are essential over an extended period of time, the 7252 interface module incorporates onboard diagnostics to monitor and report errors ensuring reliable readings, saving time for system integrators and PLC programmers.

Some other applications that would benefit from the module’s simple installation and ease of use are hydraulic stamping press, plastic injection molding, and slitting.

– Edited by Renee Robbins, senior editor
Control Engineering News Desk

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