I’ve successfully exposed my gateways tags to and external OPC-UA client. I can read everything. I can write values to memory Integer and String tags from the client. However, I can’t write to a memory JSON tag from the client. When I try writing the client gives me an error,
The access level does not allow writing to the node. There is nothing different about my three test tags, just the data type.
Does Ignition not allow writing to a JSON tag from an OPC client or do I have to set up some kind of special permission or rule? Why would writing to a JSON tag be different to writing to an Integer or String.