Hi,

I would like to know if we can pull setpoint values of configured points using the NHaystack API. These are explicitly configured setpoint in Niagara for a control point.

Thank you, Ram Iyer

Hi Chris,

Would you know if this is possible and how using NHaystack API?

Thank you, Ram Iyer

You would need to do a live watch on the point and collect histories in SkySpark or add a history in Niagara and sync with SkySpark. Basically, you would treat it like any other Niagara control point.

Hi Paul,

Thanks for the reply. Can I tag the point as a sp and use it as his? I was reading your blog. https://project-haystack.org/tag/sp

If I have a point setup as his how can I invoke it using the REST API? I am looking for the exact filter condition? Could you please share that?

Regards, Ram Iyer

Hi Paul,

I am trying to invoke the hisRead op using rest API.Could you give me an example of how I can invoke this on a control point that is defined with his tag?

https://tridium.iot.sip.demo.cloud.synchronoss.net/haystack/hisRead?id@

How do I give the id and hisStart and hisEnd in the query parameter?

Just another update: I am pretty close but getting the following error.

https://tridium.iot.sip.demo.cloud.synchronoss.net/haystack/[email protected]_02.setpoint_sample

How do I give the range now?

"dis": "s:org.projecthaystack.UnknownNameException: range",

"errTrace": "s:org.projecthaystack.UnknownNameException: range\n  at org.projecthaystack.HRow.get(HRow.java:46)\n  at org.projecthaystack.HDict.get(HDict.java:49)\n  at org.projecthaystack.HDict.getStr(HDict.java:82)\n  at org.projecthaystack.server.HisReadOp.onService(HStdOps.java:314)\n  at org.projecthaystack.server.HOp.onService(HOp.java:48)\n  at 

The documentation the hisRead operation is here

If using a GET, it would be ?id={id}&range={range}

Hi Brian,

I was able to use the it the same way earlier today and able to do run the get successfully? Thanks for update.

Thank you!