Functions in SCADAPack Workbench vs Functions in SCADAPack x70 Logic

AlbertoArdila · ‎2022-01-07

Hi

I am converting a program from Workbench to SCADAPack x70 Logic

In SCADAPack Workbench there are in Lib the Functions and the Functions Blocks

In SCADAPack x70 Logic I use the DBF type to create the functions blocks create in Workbench under Lib / Function Blocks.

My question is: In SCADAPack x70 Logic , where I can create the functions that were created in SCADAPack Workbench under / Lib / Function? (Not under Lib / Function Blocks)

Thank You

BevanWeiss · ‎2022-01-07

The only difference between FB (Function Block) and F (Function) is that the Function Block can carry with it instance data.

The Function must purely be Inputs, Outputs and Temporaries. It can't have any Private / Public variables associated with it.

My understanding of ControlExpert (aka Logic Editor in RemoteConnect) is that it has the following callable types:

Elementary Function
Elementary Function Block
Derived Function Block

Hence in terms of what the user can create, it is limited to Derived Function Blocks, unless you start to get into development of custom EF/EFB items using the C Language SDK (which I wouldn't recommend).

If you develop a DFB without any instance data, then it should be fine if you just create a single instance of it and reference that everywhere (although you may get compile warnings if you have enabled the duplicate execution of single instance option.. not defaulted enabled).

Lead Control Systems Engineer for Alliance Automation (VIC).
All opinions are my own and do not represent the opinions or policies of my employer, or of my cat..

See Answer In Context

BevanWeiss · ‎2022-01-07

The only difference between FB (Function Block) and F (Function) is that the Function Block can carry with it instance data.

The Function must purely be Inputs, Outputs and Temporaries. It can't have any Private / Public variables associated with it.

My understanding of ControlExpert (aka Logic Editor in RemoteConnect) is that it has the following callable types:

Elementary Function
Elementary Function Block
Derived Function Block

Hence in terms of what the user can create, it is limited to Derived Function Blocks, unless you start to get into development of custom EF/EFB items using the C Language SDK (which I wouldn't recommend).

If you develop a DFB without any instance data, then it should be fine if you just create a single instance of it and reference that everywhere (although you may get compile warnings if you have enabled the duplicate execution of single instance option.. not defaulted enabled).

Lead Control Systems Engineer for Alliance Automation (VIC).
All opinions are my own and do not represent the opinions or policies of my employer, or of my cat..

AlbertoArdila · ‎2022-01-12

Hi BevanWeiss

Thanks for the reply

have a good day

BevanWeiss · ‎2022-01-13

Not sure that you picked the right 'solution' here...

For people coming along later, your message saying 'thanks' isn't going to be very helpful for them (it won't "solve" their query).

Lead Control Systems Engineer for Alliance Automation (VIC).
All opinions are my own and do not represent the opinions or policies of my employer, or of my cat..

Joel_Weder · ‎2022-01-13

Just fixed, Bevan. Thanks for pointing it out.

Joel Weder
Remote Operations Specialist
Schneider Electric

AlbertoArdila · ‎2022-01-13

Hi BevanWeiss

I am agree with You, my answer was not complete

I had chosen to create both the FB (Function Block) and F (Function) from Workbench to Derived Function Blocks in SCADAPack x70 Logic

Thanks