topic Re: Steam Sensor Bug? in ThingWorx Developers

Steam Sensor Bug?

byutz — Fri, 12 Aug 2016 12:52:11 GMT

Hello All,

I have been developing an app with the edge .NET SDK and wanted to share something that I have found. I thought I had an issue with the application I had built. I noticed that during the first scan of processing, even though all the functions are being stepped through correctly, the thing properties were not being updated. I could not for the life of me figure out what I had done wrong, so I went back to the original Steam Sensor example. To my surprise, it has the same issue! One interesting thing to note, is that if I add in a console read, gathering some sort of user response, the properties will actually update on the first scan.

I know this isn't a huge issue, but I would just like some clarification on why it is happening. Is it a bug? Or is there some sort of function that needs to be called right of the bat that is not being called in the original example? Has anyone noticed this before?

Hopefully this will be useful to others, and save them 4 hours of troubleshooting a preexisting condition

Re: Steam Sensor Bug?

SajidPatel — Fri, 12 Aug 2016 14:49:02 GMT

Try adding some delay (3-5 seconds) before the very first scan to allow the binding to settle down.

Re: Steam Sensor Bug?

Aanjan — Fri, 12 Aug 2016 19:43:43 GMT

Brian, quick question - do you have a static property? A property that sends in a value just once, like a boolean property and then never changes. Does that ever update after? What is the Cache Options set to on your remote property?

Re: Steam Sensor Bug?

byutz — Fri, 12 Aug 2016 21:04:46 GMT

Aanjan,

My property cache is set to: Read From Server Cache.

And no I do not have any static properties at the moment. Thanks!

Re: Steam Sensor Bug?

Aanjan — Fri, 12 Aug 2016 21:23:23 GMT

Can you try switching to 'Fetched every remote read' as a quick test? This would increase your network traffic by a bit, depending on how often the properties are getting pushed/ updated.