OPC Device Connection Status - Via Scripting

Ignition
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1

Good Morning -

I am running Perspective, 8.1.19. Looking to get the status of my OPC UA devices via a scripting so I can put it in a customer dashboard. I can get a listing of the device names easily enough using a script like this -

devices = system.opc.browseServer(opcServer, nodeId)
for device in devices:
	print device.getDisplayName()

but can't find a way to get the status of each of these devices (connected, connecting, etc.). Has anyone done this before?

Thanks!
Matt

2

Usually there is a 'Connected' OPC tag created with each OPC device.

Just monitor that tag and you should be good to go.

1 Like
3

Thanks @kyler.kamyszek, that's what I was looking for! Each connection is listed under the tag folder Gateway/Devices for anyone wondering.

1 Like
4

To answer in the context of the original quesion, system.device.listDevices() will return a dataset with the same information.

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2 Likes
5

When I look in the tag browser, I do see System - > Gateway -> OPC ->Connections but I don't see devices listed here in the tags. I am looking to display the same information.

6

You have to create the tag and point it to the connection property.

OPC connected
OPC connected896×609 80 KB

7

Is there anyway to also get an enabled bit for if it's enabled in the gateway.

8

Just from the output of .listDevices(). The device itself can't give that information because its code isn't running at all when disabled, and therefore cannot respond to such a request.