Hello everyone, is there a way to read Controller Scope tags via Ignition?
Is it just [ DEVICE_NAME ] (TAG_NAME)?
If you’re using the newer Logix Driver for V21+ firmware then yes.
Drag one in from the OPC Browser and look at the OPC Item Path of the tag that gets created.
Is there a reason the tag scope requirements are different for the new driver vs the old one? Is the scope still relevant with the newer driver?
Old (scope required)
ns=1;s=[PLC-H7-SAWP-3]Global.HMI_WP_Alm00
vs New (no scope)
ns=1;s=[PLC-H7-SAWP-3]HMI_WP_Alm00.
Implementation detail. You'll just have to deal with it. Most people use a regex-capable text editor to do smart search-and-replace on a tag export.