PLC Design & Programming

With more than 30 years of PLC design and programming experience, ISDTech has worked with applications such as waste water treatment (San Jose), cogeneration power plant (Dinuba), high speed packaging systems (Santa Fe Springs), to one of a kind machines (LaMirada). 

A hallmark of ISDTech's design and programming philosophy is "maintainability".  The engineers at ISDTech pay particular attention to devising process & control strategies that not only accomplish the task at hand, but are programmed with the technicians and maintenance people in mind.

Modularity, compartmentalization, object oriented (tasks inherit traits from other tasks), and clearly understood "division of responsibilities", are cornerstone philosophies of our PLC programming methodology. 

Beyond programming strategies is clarity.  ISDTech is fanatical about programming object names that make sense, and adding verbose program comments for others to follow (see example below).

ISDTech PLC programming rates very competitive, and when quoting a job, ISDTech will provide a comprehensive "Statement of work" that details what will be accomplished and how.  ISDTech has particular expertise with interfacing PLC's to these different technologies:

Open & Closed Loop Motion Control Systems
Vision Inspection Systems
Automated Guided Vehicles
Customized "G & M" Code Interpreters
All Types Of CNC Machines
Laser Marking & Welding Systems

Example Programming
The PLC program snippet shown below isn't particularly complex, but we show it here to demonstrate how thoroughly our PLC's programs are commented.  Everyone knows that program "comments" are essential, but the type and clarity of a program comment is like a programmers "signature".  The amount and style of program comments is unique to each programmer.  Comments are added as the program develops, and an additional "Comments Review" procedure is performed after the program is complete