Welcome to our new forum
All users of the legacy CODESYS Forums, please create a new account at account.codesys.com. But make sure to use the same E-Mail address as in the old Forum. Then your posts will be matched.
Close
It is possible to declare, in a function block, an output which is the instance of the same function block.
I' d like to use in my project fucntion blocks orderers (like MC_MoveAbsolute) which accepts the instance of the object to be ordered as an in_out (For example the ordered is the functionBlock Axis_ref_virtual and the orderer is the functionBlock MC_MoveAbsolute).
But I'd dont like use global variables as an in_out to MC_MoveAbsolute (As axes are).
I have made a fucntion block wich controls the movement of a pneumatic cillinder, I'd like that this function block gives an output as an one instance of himsrlf to be connected to the inout input of a functionBlock named FB_setCillinderIn, Because I d'ont like that the instance of the pneumatic cillinder be global.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Anonymous
-
2016-05-10
Originally created by: scott_cunningham
Look into using THIS keyword. You can define an output variable of type MyFunctionBlock and use THIS or THIS^ to supply your instance. I use something like this to add objects to a collection.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Thanks Scott. I try that. But if I use this i Will use a copy of my instace, and if i Will use this^ i Will use an pointer. My idea was to use a "reference to" as an output, but Is not possible.
I d like to use t'he same function like axes. I have seen that axes_ref is not an instance of the axes, is an intermediate classe beetwen the axes and t'he orders function blocs (mc move absolutes) i Will use t'he same method.
Enviat des del meu bq Aquaris 5 usant Tapatalk
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Dears.
It is possible to declare, in a function block, an output which is the instance of the same function block.
I' d like to use in my project fucntion blocks orderers (like MC_MoveAbsolute) which accepts the instance of the object to be ordered as an in_out (For example the ordered is the functionBlock Axis_ref_virtual and the orderer is the functionBlock MC_MoveAbsolute).
But I'd dont like use global variables as an in_out to MC_MoveAbsolute (As axes are).
I have made a fucntion block wich controls the movement of a pneumatic cillinder, I'd like that this function block gives an output as an one instance of himsrlf to be connected to the inout input of a functionBlock named FB_setCillinderIn, Because I d'ont like that the instance of the pneumatic cillinder be global.
Originally created by: scott_cunningham
Look into using THIS keyword. You can define an output variable of type MyFunctionBlock and use THIS or THIS^ to supply your instance. I use something like this to add objects to a collection.
Thanks Scott. I try that. But if I use this i Will use a copy of my instace, and if i Will use this^ i Will use an pointer. My idea was to use a "reference to" as an output, but Is not possible.
I d like to use t'he same function like axes. I have seen that axes_ref is not an instance of the axes, is an intermediate classe beetwen the axes and t'he orders function blocs (mc move absolutes) i Will use t'he same method.
Enviat des del meu bq Aquaris 5 usant Tapatalk