Triangle Research International -
PLC Specialists for Automation and OEMs

Triangle Research International specializes in manufacturing programmable logic controllers (PLCs) since 1993. Our family of no frills, PCB style Ethernet-equipped Super PLCs are designed for embedding into OEM applications, and provide a complete array of high-value solutions for any OEM manufacturer's needs.

More importantly, our highly acclaimed i-TRiLOGITM Ladder+BASIC software reduces programming of complex control tasks on these Super PLCs into a few simple keywords. i-TRiLOGI's ease of use, coupled with its built-in simulator makes it a software of choice for many educational institutes. Today, more than half a million copies of the educational version of this popular software have been downloaded worldwide.


TRi Corporate History (From 1993 - ) - Click here to view


News & Announcements:

Mar 19th, 2014

New SmartTILE, Fx2424 and Fx1616-BA that support floating-point math on i-TRiLOGI version 7 is now available. .. <Read More>


August 15th, 2013

We have added a new packaging application from Fidalgo Bay Coffee to our Application & Industries page... <Read More>


July 9th, 2013

We are pleased to announce the official release of our 3 latest PLC peripherals... <Read More>