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alistair. frith

alistair_frith

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Joined: 21 Oct 2024

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Latest Posts

Re: Clicking on Events table n Axiom to open a display for the selected event
Thanks, yes, in the end I did something like that. I was somewhat stymied by the fact that the online documentation did not give me all the properties of the PropertyEventInstance object,…
- alistair_frith
- 5 mths ago
- Questions & Answers
- Reported - view
Clicking on Events table n Axiom to open a display for the selected event

I'm trying and failing to do this using scripting in Axiom but maybe there's another way to do what I want (I'm running Canary V25.1)? What I wanted was, within Axiom,…
- alistair_frith
- 6 mths ago
- 2replies
- 47
- Questions & Answers
Re: Axiom scripting class reference
Yep, thanks. I also found there's a link to it in the '?' on the title bar of the script edit window. Unfortunately, the event handler crashes, even with nothing in it:
- alistair_frith
- 8 mths ago
- Questions & Answers
- Reported - view
Add Intellisense to Axiom scripting

Most modern development environments include Intellisense in their code editing windows. This would be massively helpful when dealing with unfamiliar classes.
- alistair_frith
- 8 mths ago
- 13
- 2
- Axiom
Axiom scripting class reference

I've been playing with scripting in Axiom and I'm wondering if there is documentation of the classes available, eg properties for all the control objects that can be put on the screen.…
- alistair_frith
- 8 mths ago
- 2replies
- 73
- Questions & Answers
Re: Basic web API usage
I've solved it: I was retrieving a new session token on each scan. Canary was rejecting the new token presumably until the old one had expired (or some time after that).…
- alistair_frith
- 8 mths ago
- Questions & Answers
- Reported - view
Re: Basic web API usage
@alistair. frith Ok, I've got data being written to Canary from my C# app through the web API. But I now have 2 more issues: 1. Unless I leave several minutes between writes,…
- alistair_frith
- 8 mths ago
- Questions & Answers
- Reported - view
Re: Basic web API usage
@alistair. frith Hmm, looking at the API reference at Canary Labs | Store and Forward Web API Documentation I should be using storeData, not sendData. Not sure where I got sendData from!
- alistair_frith
- 8 mths ago
- Questions & Answers
- Reported - view
Re: Basic web API usage
@Steve Mason Fantastic, thank you, I knew it would be a silly mistake! I can now get a session token. But... when I then try to use that session token to write a value into Canary,…
- alistair_frith
- 8 mths ago
- Questions & Answers
- Reported - view
Re: Basic web API usage
@Steve Mason Finally got back to this and yes, if I change to use https in PoastMan, then it works. Yay! But... My program still fails at the same point as before.…
- alistair_frith
- 8 mths ago
- Questions & Answers
- Reported - view
Re: Basic web API usage
Thanks Steve, yes we are running V24. Unfortunately, when I try following the instructions in that linked article, I get this Any suggestions why?
- alistair_frith
- 9 mths ago
- Questions & Answers
- Reported - view
Basic web API usage

I'm trying to write a little tool to put data into Canary tags through the Web API but am hitting my lack of knowledge on such things. Looking at the endpoints in the Identity tile,…
- alistair_frith
- updated 9 mths ago
- 10replies
- 206
- Questions & Answers
- Answered
- Answered
Collecting data from a Web API (api.openweathermap.org)

We want to collect local weather information from openweathermap.org and store it in Canary. I could write a little tool to get the data and put it into a CSV for Canary to read with the CSV…
- alistair_frith
- updated 9 mths ago
- 1reply
- 70
- Questions & Answers
Re: Asset properties question
Hi@Damon Vinciguerra This is a demo environment. We have MQTT data coming in from the inverters and solar PV strings. I am trying to also model some static asset data such as inverter…
- alistair_frith
- 9 mths ago
- 1
- Questions & Answers
- Reported - view
Re: Date/time arithmetic in Calculations
Discovered I also have SunriseSeconds and SunsetSeconds, being the total seconds since the start of the day for Sunrise and Sunset. So that makes the calculation much easier.…
- alistair_frith
- 9 mths ago
- Questions & Answers
- Reported - view
Date/time arithmetic in Calculations

Apologies if this is a silly question or if I'm repeating something I've already asked (I'm sure I asked something like this a while ago) but what is the best way to do date and time arithmetic in…
- alistair_frith
- updated 9 mths ago
- 2replies
- 85
- Questions & Answers
Re: Asset properties question
Thanks. I already have a little SQL data so I have created another collector connection to another table with a 'Properties' tag for each solar string. That tag then has all the static properties I…
- alistair_frith
- 9 mths ago
- Questions & Answers
- Reported - view
Asset properties question

We have a database monitoring solar PV generation. We have several inverters, each connected to several strings of solar panels. We want to monitor the output of each string of panels and compare…
- alistair_frith
- 9 mths ago
- 4replies
- 34
- Questions & Answers
Re: How to Configure External Property Storage for Populating Metadata in Virtual Views (version 24)
I'm trying to get this working and, though the connection test to the SQL Server database succeeds, I see no signs that it is doing it's regular 30s check,…
- alistair_frith
- 10 mths ago
- Views and Asset Models
- Reported - view
Re: Dataset storage questions
Thank you, that clarifies a lot. I'm currently trying to implement external metadata storage but am hitting what Canary currently think may be a bug when making the initial connection to the SQL…
- alistair_frith
- 10 mths ago
- Questions & Answers
- Reported - view
Dataset storage questions

I'm trying to understand how Canary 'knows' what tags it has. As far as I can tell, if a collector sends data for a tag name then that tag is created in the relevant dataset file for that day,…
- alistair_frith
- 10 mths ago
- 2replies
- 52
- Questions & Answers
- Answered
- Answered
SQL connection issue for tag attributes in views configuration

I have a test installation with data in a SQL database that is already sending time-series data through the SQL collector. I'm trying to connect to the same DB in the Views configuration to pick up…
- alistair_frith
- 10 mths ago
- 1reply
- 39
- Questions & Answers
Re: Rollup calculation syntax
@Steve Mason Perfect, thanks. That fixed it. In fact, what I should have done was remove Site00 from the asset path, since I want it applied to all units at all sites.
- alistair_frith
- 11 mths ago
- Questions & Answers
- Reported - view
Rollup calculation syntax

I'm trying to create a rollup calculation but I don't really understand he syntax and I can't find any examples. I have a virtual view with these asset types: one Company, with multiple Sites,…
- alistair_frith
- updated 11 mths ago
- 3replies
- 57
- Questions & Answers
- Answered
- Answered
Re: Asset hierarchy definition help
@Damon Vinciguerra Yep, that's pretty close to my format. I also adjusted the tag names coming in (since it's a demo system using randomly generated data and I have full control over the naming),…
- alistair_frith
- 11 mths ago
- 1
- Questions & Answers
- Reported - view

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