Need python client (asyncua ) to be able to connect anonymously and write tags for development env. Have setup tag Write security Public.
Can read tag, but attempts to write tag produce - “BadUserAccessDenied: User does not have permission to perform the requested operation”
What am I missing?
If you don't set up any permissions at all it should just work by default.
I found OPC UA Server Settings → Permissions, where write was disabled for anonymous, that fixed it.
Ah, are you using Ignition 8.3 then?
(post deleted by author)
Yes
Ok, yep, you found the right solution then.
Previously nothing would have been required.
It can get a little confusing if you start configuring Ignition Tag permissions because the OPC UA server uses a different authentication profile by default, though I'm not sure it actually matters in this case.
Yep, thanks for the quick response.
I'm evaluating some Ignition features for a client. We would like to perform supervisory control functions using python against the Ignition OPCUA server, which will provide access our ModBUS (and potentially CAN) devices. Might run it all on a Revolution Pi or some such.