AdvancedHMI Software

General Category => Support Questions => Topic started by: dd33 on April 02, 2017, 09:18:24 PM

Title: Only one meter at a time works
Post by: dd33 on April 02, 2017, 09:18:24 PM

Hello,
I have been experimenting with AdvancedHMI for the last couple of hours.  I am polling a DL06 PLC and trying to display 9 analog meters and 2 bar meters on a single page.  For some reason only one of the meters will work at a time.  Every time I re-run the application a different one will work.  The modbus tcp polling is set for 100ms
and I am using floating point numbers.  Can anyone offer some advice?

Title: Re: Only one meter at a time works
Post by: Archie on April 02, 2017, 10:05:20 PM

I would recommend trying to use a Modbus simulator such as ModRSim2, so you can eliminate the possibility of PLC communications:

https://sourceforge.net/projects/modrssim2/?source=directory

Title: Re: Only one meter at a time works
Post by: dd33 on April 03, 2017, 11:14:13 AM

Strangely the problem is intermittent.  If I use the pc to simulate the modbus values I get similar results.  The meters only work intermittently, some of them seem to be more problematic than others.  I just ran the program 15 times.  One meter didn't work 5 of those times, another didn't work 6 of them, the other 9 were reliable.

This behavior sounds a bit different from what I described in the original post.  I was not polling data for all 11 meters last night so it looked a little different to me.

Title: Re: Only one meter at a time works
Post by: Godra on April 03, 2017, 12:30:51 PM

Have you tried starting your form with 1 meter only and then adding other meters one by one to see at what point it becomes intermittent?

What are the addresses that you are polling?

Title: Re: Only one meter at a time works
Post by: dd33 on April 03, 2017, 02:04:11 PM

I switched from Floating Point numbers to unsigned integers and I think it is working now.  I will restart it a few dozen times and try to report back.

Thanks