Flashback Friday! RSLogix 5 Sum Integer File using FAL

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Welcome to The Automation Blog’s “Flashback Friday!”

Today I’m highlighting PLC-5 code I wrote and published twelve years ago using RSLogix 5.

ap_ladderlogic_clx_asciiint2string_1The year was 2002, and my client needed to calculate a running average based on file of integer values he had been collecting.

The first step in doing this was to sum all those integer values together, and this is the simple code I put together to show him how to accomplish that task using the FAL instruction in the PLC-5.

Posted on my original website back on October 11th, 2002, you can now find this article and link to the RSLogix 5 RSP program file HERE on The Automation Blog:


And if you have any questions, comments, or suggestions, please don’t hesitate to share them with us by using the “leave a reply” form at the bottom of this page.


Shawn Tierney
Automation Consultant
Insights In Automation

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