Hi, I’m making my first Scada with Ignition and I’m trying to understand what would be the best and fastest way to link my templates in Ignition to my PLC UDTs and other tags.
I have recreated a PLC UDT structure in Igntion and created a template using this UDT.
When the time come to link my AB PLC UDTs to my Ignition UDTs is it automatically going to recognize the name and structure are the same and then work in the template?
I noticed as well, in a template, if I have a UDT type parameter I’m using it does work even if the UDT I bind to the parameter is not of the same type. Ex: I have a DOL motor UDT and VFD UDT that have the same structure but the VFD UDT obviously have extra information. If my template is expecting a VFD UDT and I bind a DOL UDT it still take it and work. It’s perfect in my situation but is it a normal behavior or is going to change?
Still regardin UDTs in templates I could read that because it loads the entire UDT every time you use it, it can slow down a bit displays when you have big UDTs, even if you use only a few tags of it in your template. So apparently some people prefer working with Tag path rather than UDT.
Tag path and indirect binding is great but how does it work when you want to link you templates to the OPC tags? It seems really long having to copy every OPC tag path and paste them in the template parameter.
Is there a way as well when developing the Scada to pre link our tags to the PLC (like we would with addresses on other Scada) so when the PLC program is done they is no re work to do in Ignition?