MpLink/ mcAxisTyp access inside IEC Library

[whyleys (Shaun Whyley)]

Hello,

I’m creating a custom IEC function block (ST) and want to use the following function blocks which require my axis link mpAxisBasic, MC_BR_VelocityControl & MC_BR_CommandError. But I can’t figure out how to pass the ADR() &mcAxisTyp into the function block without causing service mode and Page fault.

I have read the help on dynamic variables and have tried the ACCESS call multiple ways but still scratching my head

I’m assuming this is possible, is anyone able to give me an example of passing this variable inside with program call and datatype?

Thanks
Shaun

[christoph.hilchenbac (Christoph Hilchenbach)]

actually the MC_ function block require a pointer to a McAxisType so you can just use an UDINT instead a REFERENCE TO McAxixType:

this can then simply be passed to the system function blocks:

With C or C++ you can alternatively use a REFERENCE TO McAxisType:

I’m very curious to see if someone can make it look nicer with ST.

[whyleys (Shaun Whyley)]

Thank you Christoph!! I jumped straight past the simplest form and over complicated this for myself! Solution solved… I love this platform