7252 ControlLogix LDT Interface Module

7252 ControlLogix LDT Interface Module


  • Two-channel LDT interface
  • Direct interface to most sensors that output PWM, control pulse, or start/stop signals
  • Onboard diagnostics monitor and report errors
  • Latch inputs for capturing the position data value
  • PLC time can be sent to the module to generate an interpolated (look ahead) data value
  • Incorporates Rockwell Automation licensed technology for 100% compatibility with 1756 PLC


7252 user manual






7252 ControlLogix LDT Interface Module

Bringing LDT position sensor data into the ControlLogix PLC has never been easier! AMCI's (2) channel 7252 LDT interface card can directly interface to two magnetostrictive sensors with PWM, control pulse, or start/stop signals.

AMCI's LDT Interface Card is a magnetostrictive linear displacement transducer (LDT) based module that incorporates Allen-Bradley licensed technology for guaranteed compatibility with A-B Series 1756 I/O chassis. Plus, it's a direct interface to today's most popular LDT sensors, including Balluff, Ametek, Gemco, MTS, and Turck.

AMCI's 7252 card monitors machine position and delivers continuous absolute position data to the ControlLogix processor down to 0.001" or 0.10mm resolution. The module also returns velocity data, based on the position scaling in counts per second, and transducer diagnostics. System Integrators and PLC programmers will value the module's simplicity and flexible performance. 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.

Customers working in markets such as Forestry and Wastewater control will appreciate the module's latch inputs. Whereas customers configuring machinery for Injection Molding, Slitting, and Hydraulic Cylinder control will value the module's simplicity and flexible performance.

AMCI's 7252 interface module is a cost effective approach to system upgrades, enabling you to specify a ControlLogix PLC without obsoleting your LDT sensors.

Available Versions

7252: Two-channel LDT (linear displacement transducer) interface plug-in module for the Allen-Bradley ControlLogix.
Price | $1,590/ea

Note: Pricing is US Domestic only



Consult the factory for availability

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Licensed By Allen-Bradley

All AMCI plug-in module products for Allen-Bradley PLCs or PACs are approved for sale by Rockwell Automation and utilize licensed technology to ensure trouble-free performance.

Advanced Micro Controls Inc. (AMCI) is a global Encompass member of the Rockwell Automation PartnerNetwork™ program. Through collaboration with Rockwell Automation, AMCI helps its customers improve time to market, lower total cost of ownership, better manage assets and minimize manufacturing business risk.



Encompass Product Partner since 1992

rockwell-automation-encompass-program-amci-logo.gifAMCI is a founding member of Rockwell Automation's Encompass Product Partner program. 


The Best PLC Integration Available

AMCI products are uniquely designed to provide the best PLC integration available. Unlike other products that require a separate software package for configuration or operation, AMCI's PLC-based products are programmed using your PLC's software - nothing new to buy or learn!

Our expertise with the leading PLC manufacturers (e.g. Allen-Bradley Schneider, GE, etc) is unmatched when it comes to high performance Specialty I/O, Position Sensing, and Motion Control technology. 

Program Using Your Existing Software


AMCI's products program using your PLC's native software - nothing new to learn or buy!


Product Specifications

AMCI Module7252
PLC platform1756 ControlLogix
Number of channels(2) channels
Number of recirculations(1)
Resolution0.001 in or 0.1mm
Modes of operation-PWM external interrogation
-Control Pulse
-PWM internal interrogation
Transducer compatibilityMost linear displacement transducers, including:
Balluff / Ametek / Gemco / MTS / Turck
Number of I/O2 in direct (used for capturing scaled position data) opto-isolated
Velocity update time32 ms or 120 ms
DC supply requirements400ma @ 5Vdc from PLC backplane
Temperature rangeOperating: 32° to 131°F (°0 to 55°C)
Storage: 0° to 150°F (-17° to 65°C)
Cable requirementssensor dependent
Required hardwareexternal 24V power supply for sensor and latch inputs
Optional hardwarena

AMCI makes buying PLC-based automation easy...our sales group will help you:

  • Select the right product for your application
  • Pay by credit card using your Visa, Mastercard, Discover, or American Express
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  • Locate a distributor convenient to your region of the country


Contact AMCI Sales today:

telephone: 860-585-1254
email: AMCI sales

Ordering Information

AMCI's sales team takes the hassle out of placing your order. We'll advise on product selection, alternatives, lead times, and present you with point of purchase options. Call (860) 585-1254 or email AMCI sales today!

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