Host Engineering Forum

General Category => Do-more CPUs and Do-more Designer Software => Topic started by: Mike Nash on April 14, 2016, 03:38:23 PM

Title: Another Little Oddity
Post by: Mike Nash on April 14, 2016, 03:38:23 PM

Yes, yes old computer and OS, and I am online with the same CPU from two computers, but both are refreshed and one shows the same memory usage in the status bar as in the System Information while the other consistently shows higher in the status bar. Sys Info in the "other" shows the same as both in the first.

Title: Re: Another Little Oddity
Post by: franji1 on April 14, 2016, 04:11:27 PM

I am assuming you are talking about the Ladder Memory values (3086 in the dialog, 3107 in the status bar).

The dialog shows the ACTUAL value (reported by the PLC).  The one on the Status Bar is "calculated" by Designer.  This may be "off" due trailing NOPs in each code-block, rung comment handle values, et. al.  It "synchronizes" when you download (it has a "slop delta" that it uses to help "calculate" that number on the status bar, and so this "delta" value is "calibrated" at download time).

Designer determines the precise length at download time.  It's an "estimate" up until that point.  Even then, the reported value on the status bar may be a little off  :-\.

Title: Re: Another Little Oddity
Post by: Mike Nash on April 14, 2016, 05:10:27 PM

I only noticed because the one I was actually programming on always seemed to match. But I was downloading with it and only disconnecting and reconnecting the other to refresh it.