We’re currently working with a customer who is considering the replacement of their existing SCADA platform which is riddled with bugs and issues, and is difficult to maintain.
The site currently has ~50,000 tags across 20 or so PLCs, all communicating via a Kepware OPC server. Most PLCs are Allen-Bradley. We would like to remove the Kepware middle-man and communicate these PLCs directly to Ignition (combo of SLCs, CompactLogix, ControlLogix, PLC5/05s)
I would like to know other users’ previous experiences in using Ignition SCADA on such large sites in terms of performance, both server and on clients. How suitable is Ignition for such applications?
Are there any gotchas or do-not-do’s that you have come across?
e.g. never pass UDT types around between pages and template objects - always pass the base tag path and use indirect addressing to access UDT tags.
Any feedback would be much appreciated.