I have a Perspective project that has a lot (44k) tags gathered from several different OPC UA devices. There are 5 different Control/GuardLogix processors configured. Their configuration is shown below and is consistent with exception of the names, IP address, and slot. We have found that when ad…

Next time you notice this happening turn the logger “drivers.LogixDriver.Requests.ReadBrowseHashRequest” to TRACE level and then collect the logs for us after a minute or so. Make note of the name of the device this is happening with. Every time I’ve seen this so far it’s been because the PLC isn’t…

I have the logs - the Device name is showing up with the trace. I will send you the logs in a separate message

Yep, that request is still going, so the only thing I can conclude is that the browse hash isn’t changing. Not sure there’s anything we can do in Ignition when this happens.

Instead of rebooting the gateway or disabling the device, you can just save the device (without any changes) in the gateway webpage and it will reload it.

I realize now the data I sent was only including the hash from AFTER the issue, not before - so it wouldn’t have showed if the hash changed or not. I didn’t think about what we were really trying to capture - my bad! Also, I assume the hash is the info in parentheses? I was trying to recreate the…

Hmm, not sure if there’s an issue deleting tags. We’ll have to try and reproduce that here. Did you right-click and refresh in the OPC browser after it was deleted?

FWIW I’ve seen this as well with Version 32 of L81Es and L81ESs as well. Probably V30 as well but I can’t verify that at the moment. What specific firmware do you have on your PLC’s? We’ve not successfully found a god solution to keep this from happening, just re-saving the connection like @nminchi…

I definitely saw the issue on two different L82ES with v32 FW. I was trying to replicate on a L82E (not safety) and couldn’t get it to happen today, but the issue is intermittent on the L82ES as well so that doesn’t mean its not an issue on that processor.

I’ve got 4 PLC’s in the office right now that I know for sure it has happened on at least two of them. And L81E and L81ES. I’ve got some time this afternoon I can try and duplicate the issue and see what I can do

If you guys are going to be reproducing set the loggers for LogixBrowse and LogixBrowseStateManager to TRACE also. Make sure all 3 loggers are on before you start making program changes. The goal here is to verify that sometimes a change in the program doesn’t result in a change in the browse hash …

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OPC UA - new tags not showing up all the time in Designer

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