7900 Series RX7i SSI / LDT Interface Modules

  • Rotation Slide


    This is a legacy product. While it is available at this time, please note that we anticipate phasing it out (retiring) it by the end of 2023. If you have any questions, or would like assistance seeking an alternative solution, please contact our sales department.


  • Choose SSI or LDT interface.
  • SSI module offer direct interface to most sensors that output SSI data .
  • LDT module is compatible with Balluf, MTS, Ametek and Turck linear displacement transducer sensors with start - stop or pwm digital outputs.
  • Onboard diagnostics monitor and report errors.
  • Industry leading warranty and support .
  • Licensed by GE Automation & Controls to ensure 100% compatibility with the PACSystems RX7i controller.
  • download-icon.jpg

    7961 user manual











    7900 Series RX7i SSI/LDT Interface Modules

    Supplying absolute position and velocity data to your programmable controller, the single slot 7951 & 7952 Linear Displacement Transducer interface modules are a direct interface between most major brands of LDTs and the GE PACSystems RX7i controller. The 7961 will interface to any sensor that outputs up to 32 bits of SSI data.

    The 7951 & 7952 are fully programmable from the sealed keyboard and display or through the backplane, and offer programmable position resolution down to one thousandth of an inch, with transducer lengths under one hundred inches. Additional programmable features include: position preset, count direction, and transducer type.

    The 7961 is programmed through the backplane with resolution limited only by the sensor. Programming features include: position preset, data word length (up to 32 bit), and data scaling.

    Available Versions

    7951: Single-channel LDT interface module for GE PACSystems RX7i
    Price| $2,167/ea

    7952: Two-channel LDT interface module for GE PACSystems RX7i
    Price| $2,891/ea

    7961: Single-channel SSI interface module for GE PACSystems RX7i
    Price| $2,079/ea

    Note: Pricing is US Domestic only







    Consult the factory for availability

    Contact Sales

    AMCI PLC Modules for GE PACSystems RX7i

    All AMCI plug-in module products for GE PACSystems RX7i PLCs provide guaranteed compatibility and utilize licensed I/O interface technology to ensure trouble-free performance.

    By combining all electronics into one easily installed plug-in module, these single slot products eliminate the hassles associated with interfacing stand alone controllers and /or interfaces to Programmable Logic Controllers. Customers choose AMCI control solutions with confidence, knowing that we have over 20 years of experience in the design, development, and manufacturing of modules for General Electric PLCs.



    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!


    AMCI Module

    AMCI Module 7951
    PLC Platform GE PACSystems RX7i
    Number of channels 1
    Position sensor LDT - start/stop or pwm
    Maximum resolution 0.001", LDT<100"
    0.01", LDT<650"
    0.1mm, LDT<9,999mm
    Transducer compatibility Balluf / MTS / Ametek / Turck
    -----------------------above brands with start - stop or pwm digital outputs
    Tachometer update time programmable: 32, 60, 120, or 240ms
    DC supply requirements 850 mA max. @ 5Vdc
    Cable requirements transducer dependent
    Required hardware external power supply for sensor
    Optional hardware na
    AMCI Module 7952
    PLC Platform
    Number of channels 2
    Position sensor
    Maximum resolution
    Transducer compatibility
    Tachometer update time
    DC supply requirements
    Cable requirements
    Required hardware
    Optional hardware
    AMCI Module 7961
    PLC Platform
    Number of channels 1
    Position sensor SSI
    Maximum resolution transducer dependent
    Transducer compatibility AMCI: DC25 SSI
    AMCI: ME15 SSI
    Balluff / MTS / SICK Stegmann
    Tachometer update time programmable:
    1 - 1,000ms
    DC supply requirements 550 mA max. @ 5Vdc
    Cable requirements
    Required hardware
    Optional hardware


    Rotary Encoders

    Rotary Encoders Learn More


    Cables Learn More

    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
    • Coordinate alternative payment methods (P.O., wire transfers, etc.)
    • Locate a distributor convenient to your region of the country

    credit cards accepted lineup.png
    Contact AMCI Sales today:



    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! 

    Down Arrow



    Visit our Youtube!

    SSI Sensors and Interfaces: This 15 minute webinar explains SSI including why, where, and how i...

    Watch Now