Clarification using _MEM

[DSMan195276]

However MemBlock.SIZE never changes in value as I navigate through the memory block. What does the wiki mean by stating " size of block remaining at offset(changes with position) "?

Any help would be appreciated. I'm delving into the MEM statements and making great progress but this has me baffled.

The comment on the definition is a little odd, maybe there's a situation where you can get a new _MEM that is offset from the original but I don't know of it.

That said I wouldn't read into it too much, `_MEM` works like any regular UDT except that the it's read-only. The logic `Offset = MemBlock.OFFSET` and `Offset = Offset + 4` only modifies the `Offset` variable you created, it has no impact on the original `_MEM` variable.