Mitsubishi Electric Q173CPU Programming Manual page 224

6 MOTION SFC PROGRAMS
POINT
(1) Motion SFC comments are stored into the CPU code area. The CPU code
area stores the Motion SFC chart codes, operation control (F/FS) program
codes, transition (G) program codes and Motion SFC comments.
Be careful not to set too many comments to avoid code area overflow. (Refer
to Section "1.2.2 (2) (b) Motion SFC Performance Specifications" for the code
area sizes.)
(2) You cannot use "," in comment statements.
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