Mitsubishi Electric MELSEC-Q Series Programming Manual page 134

*3 Comments to be read are stored as follows.
Area name
Total number of steps
Number of steps that have read
comments (N)
Step No.
Comment
End of comment
Empty
*4 The number of characters for each comment in the comment range setting is set in the programming tool.
For details, refer to the manual for the programming tool.
With S(P) .SFCSCOMR instruction, the points calculated by the following formula are occupied from the device No. specified
at (d1).
(Points to be used for storing a comment) = 2 + 20  (number of comment to read (n2))
For (d1), make sure to set device No. that can store the above points successively.
4 SFC PROGRAM CONFIGURATION
132
4.8 SFC Comment Readout Instruction
Data to be stored
• 0000 is stored at S(P). SFCSCOMR instruction, and the total number of steps are stored at completion of
H
comment readout.
• 0000 is stored at S(P). SFCSCOMR instruction, and the total number of steps that have actually read
H
comments are stored.
• Active step No. that has read comment is stored.
• Comments that have been read are stored.
• Comment area is fixed by a maximum of 32 characters.
• In case the word length to be set for 1 comment
stored to the area after the number of characters for 1 comment.
• 0000 is stored.
H
• Not used area (0000 is stored.)
H
*4
at the comment range setting is set by 32 or less, 0000 is
H