Indirect addressing of tags?

[markrit@hotmail.com]

Is anyone aware of a method (ST, FB, LD, etc) of using a string from an external file, DB, etc. to retrieve the value of an internal or global variable tag. For example if I have a tag called Pointer of type = String and the value of ‘Cyc_Count’ is there a method to retrieve the value of the tag called Cyc_Count’ of type Integer using the value in tag Pointer?

[Sergei Troizky]

I wish it existed. Lack of such is one of the biggest downsides of the tag addressing. Edited November 28, 2015 by Sergei Troizky

[Crossbow]

No indirect addressing, but for that type of thing you should look at using arrays. The array pointer can be any integer variable.

[Berti Baker]

Pointers are powerful, but potentially deadly.  Just look at the quantity of Windows Security Updates protecting heap trampling of rouge pointers!  That's why IEC language doesn't include pointers to help create stable code.  Like Crossbow, in my experience you can usually create an array (or array of structures) and 'step' through them with an index.