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Variable History?


Jamison_IO

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Posted

I looked at the log and it doesn't appear to be there.

 

I know I can open up the event viewer and let that run (not sure if PC needs to be 'awake' for that to keep recording).

 

Is there any place that keeps a history of variable changes, or takes a snapshot over a period of time?

 

I'd like to see when my variable is changing.

 

Thanks.

 

 

Posted (edited)

This could be done with the internal ISY logging facility via the notification technique also.

 

There is a thread on this back a few months ago with mwareman, myself, and others.

 

 

Here you go:

http://forum.universal-devices.com/topic/7269-logging-variables/page-1

 

 

I looked through this and tried to follow some links, but had no luck (i copy pasted the actual link target):

 

http://forum.universal-devices.com/viewtopic.php?f=79&t=7763

 

http://forum.universal-devices.com/viewtopic.php?f=51&t=11857&view=next  (jumps to: http://topic/7293-isylogger-latest-version-v067/)

 

nevermind - i just popped it in the pattern of the current forum and it worked. that was confusing.

Edited by Jamison_IO
Posted

i am working on this and can't figure out how to monitor the variable to trigger the update. Is there a way to monitor the variable and write to file when it changes?

Posted

i am working on this and can't figure out how to monitor the variable to trigger the update. Is there a way to monitor the variable and write to file when it changes?

It must be a state variable, then it will trigger. Integer variables won't trigger automatically.
Posted (edited)

Thanks -I am using a state variable. I read the info, and am probably going about it all wrong.

 

I have the custom notification ready to go, I just do not know what to use in the program to trigger its use.

 

Edit - I am trying to use the internal logging, not the ISYlogger. I think that is where the disconnect is. My apologies, I should have been clearer.

Edited by Jamison_IO
Posted

Got it to work - it never says in the instructions what to use for the "Settings/Groups" in order to point it to the custom notification. That's where i was confused.

Posted

I use one notification to write the column headers each month for a new file.

I use another notification to write the data to the same file each time a variable changes.

 

I use mwareman's script and some plug-ins to view the data on a chart.

 

I have discovered a lot of flaws in my HVAC system using these methods.

Posted

To put one more option on the table, is io_guy's ISY Logger. I think it does exactly what you want and can ship the results to syslog if you'd like. You id the variables you want to track by checking a box next to their name. You do need a separate windows or Raspberry Pi type system to run it on your network

 

 

Here is a sample of the csv output.. header row definition, followed by values:

Time,Day,Month,Month_compare,Day_compare,V_FR_Fan_Cycle_Sequence,V_US_Fan_Cycle_Sequence
03/10/2016 00:12:40,9,3,3,9,29,52
03/10/2016 00:17:43,9,3,3,9,29,53
03/10/2016 00:32:41,9,3,3,9,30,53
03/10/2016 00:37:44,9,3,3,9,30,54
03/10/2016 00:52:41,9,3,3,9,31,54
03/10/2016 00:57:44,9,3,3,9,31,55
03/10/2016 00:59:58,10,3,3,10,31,55
03/10/2016 01:12:43,10,3,3,10,32,55
03/10/2016 01:17:46,10,3,3,10,32,56
03/10/2016 01:32:43,10,3,3,10,33,56
03/10/2016 01:37:48,10,3,3,10,33,57
03/10/2016 01:52:45,10,3,3,10,34,57
03/10/2016 01:57:48,10,3,3,10,34,58
03/10/2016 02:12:46,10,3,3,10,35,58
03/10/2016 02:17:49,10,3,3,10,35,59
03/10/2016 02:32:46,10,3,3,10,36,59
03/10/2016 02:37:50,10,3,3,10,36,60
03/10/2016 02:52:47,10,3,3,10,37,60
03/10/2016 02:57:51,10,3,3,10,37,61
.....

Paul

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