I have a OPC server that use following hierarchy for tags:
Device = PLC name like HIMA,FCN,S71200,…
EquipmentID = FIC212
Signal = PV, XA, HOA,…
In ignition I mimic same hierarchy folder in tag list and UDT:
- The Area and Device is folder name.
- The UDT instance is EquipmentID.
- Singals is UDT element tag.
In UDT for OPC Item Path string I want to use the UDT instance name and parent folders name reference.
Now it is something like this and is not dynamic:
I do NOT want to use custom parameters to fill this data for each instance manually.
If I can make reference to folder and instance UDT name this string is fill automatically for each items. For example in wonderware I can use me. to reference to UDT isntance name and Parent to reference to parent folder.
I search document but didn’t find any trick to reference parent folder and UDT itself instance name. Can someone help me in this.