Hi all...
Trying to do the Ignition Design Challenge RioOso to prep up for the core exam and have hit a brick wall... on the UDT creation page -- [Connection and Tags] the table ColdBrewUDT doesn't match the RioOso.csv uploaded in previous instruction? Am I supposed to create new tags (status, highSP, waterTemp etc...) and if so what type? OPC? Memory? Or am I looking at it totally wrong? Or is it a version thing? I'm on 8.1....
The CSV contains the data to load into the simulation device. It uses raw old-style plc addressing. Your ignition tags then should use these addresses in their opc item paths. The two tables in the doco describe:
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the tags to create in the UDT definition
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and then the instances to create and what the various tag opcitempaths should point to in the simulator plc
Note: You should be using the station number parameter passed in to calculate the tag addresses, you clshouldnt be overriding the opcitempaths in the UDT instances. I'm trying to find a reference in the manual but can't... Basically you can do simple arithmetic inside of tag addresses like ns=1;s=[plca]N{param1+45}:4
I don't remember all of the operands supported as I never use them
Thanks for the reply Nick... I'm steaming ahead until I cant understand an instruction then I'm kaput....I'll set it up as above.