For how to input the symbol variable comments,
refer to the following.
30.3.2.1 Registering Symbol
Variables
You can also add and change the symbol variable
comments in [Properties].
30.13.5 Using Reference Features
to Search Logic Programs
You can display a list of symbol variable
comments and edit the comments in the [Comment List] window.
30.7.4 [Comment List]
Window
A comment about the system variable can be
added or changed using the [Edit Symbol Variable Comment] dialog
box, which is displayed by right-clicking the symbol variable
section allocated to the instruction and selecting [Edit Symbol
Variable Comments (V)].

A comment about the symbol variable is
displayed in a tool tip when the cursor is placed over the symbol
variable part of the instruction.

Press the [F9] key to display all comments in
the logic.
If the entire comment does not fit in the
comment area, the rest of the comment is indicated by a "...".
Click the comment to view it in its entirety.
