4 Replies Latest reply on Dec 5, 2018 2:42 PM by PeteHoffswell

Node-Red + Pi OMF connector + Weather Underground - Getting it running

PeteHoffswell Dec 3, 2018 3:57 PM

Good morning -

We are working on a new field-based sensor network monitoring surface temperatures of our power-plant-connected snow-melt system here in Holland Michigan. Using LoRa technology, we are successfully gathering data. The final step is to import this into our Pi installation.

I have been following the how-to: "PI-World-2018---Learn-How-to-Leverage-OSIsoft-Message-Format-(OMF)-to-handle-IoT-Data-Streams", and trying to get it to work in our environment. I've successfully installed the connector and Node-Red, and have been stepping through the how-to. No success.

I note that there is an export of the Node-Red flow called "wUnderground.txt" noted in the documents. Does anyone know where I might be able to get a copy of this?

I'd be interested to know how others have done with this how-to.

Thanks in advance for your comments!

Re: Node-Red + Pi OMF connector + Weather Underground - Getting it running

dendres Dec 4, 2018 1:54 PM (in response to PeteHoffswell)

From what I remember, the wUnderground.txt contained an API key for interacting with the free wUnderground API. I was going to suggest getting a new API key from https://www.wunderground.com/weather/api/. But the free API is no more and the wUnderground API in general is changing soon according to that announcement on that page.
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- Re: Node-Red + Pi OMF connector + Weather Underground - Getting it running
  
  PeteHoffswell Dec 4, 2018 2:28 PM (in response to dendres)
  
  Hi Derek -
  
  I have the Wunderground component working just fine. I seem to be having trouble with the latter part of the flow, where it connects up with Pi.
  
  The how-to doesn't go into detail regarding prodtokens - I'm assuming that I need to generate new tokens to connect to my local PI connector. Not sure how to do that.
  
  Also, the http request URLs in the how-to are blank. I believe these need to be filled in, but unsure what that would be.
  
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  - Re: Node-Red + Pi OMF connector + Weather Underground - Getting it running
    
    dendres Dec 5, 2018 1:29 PM (in response to PeteHoffswell)
    
    Pete,
    
    This link explains the process for the PI System to data ingress via OMF:
    https://livelibrary.osisoft.com/LiveLibrary/content/en/omf-v1/GUID-B1B25ED5-9FEF-4E28-A967-8B2A9926152C#addHistory=true&filename=GUID-BD049028-F39F-49B8-AFFF-AF2E6360000D.xml&docid=GUID-5E02BBD0-385B-4D53-AC89-276A64C2316B&inner_id=&tid=&query=&scope=&resource=&toc=false&eventType=lcContent.loadDocGUID-5E02BBD0-385B-4D53-AC89-276A64C2316B
    
    It ultimately leads you to the PI Connector Administration Guide: https://techsupport.osisoft.com/Downloads/File/ebf4f4af-56e7-4bd1-970c-04b648a7045c. Specifically the sections on:
    Pre-installation tasks
    Installation
    Workflow for configuring data flow
    Add an OMF application
    Complete the OMF application data flow
    
    Let me know if that helps
    2 of 2 people found this helpful
    
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    - Re: Node-Red + Pi OMF connector + Weather Underground - Getting it running
      
      PeteHoffswell Dec 5, 2018 2:42 PM (in response to dendres)
      
      This is perfect, Derek. You are correct in your analysis - we need to do more work on our PI system to set up the connector.
      
      Thanks for pointing us in the right direction.
      
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