Siemens PLC Add-On Block

[shazad5444]

Dear Friends, How we can create Add-On in Siemens PLC system as we are creating in Rockwell. If any example of program then it will be great.

 

[JesperMP]

Is a Rockwell Add-On a reuasable block of code with its own data ?
In that case, the same thing in Siemens S7 is a Function Block with Instance Data.

Or try to describe what a Rockwell Add-On is.