22
Precautions when Reusing Programs from Earlier Models Section 2-4
1:N Format
• Command
• Response
1:1 Format
As shown in the following diagrams, the 1:1 format is equivalent to the 1:N for-
mat without the @ character, Host Link unit number, and FCS byte.
• Command format
• Response format
2-4-3 C-mode Command Support
Use the following table as reference when reusing programs for host comput-
ers developed for earlier Host Link models.
• If a command is not supported for the new model of PLC, consider using
another C-mode or FINS command.
• Even if the command is supported, differences may exist in the data sizes
that can be processed or in the meaning of the values if the models or
Series vary.
• Refer to the applicable operation manuals for details.
0
0 R D
FCS
CR
@
××
*
Header
code
Unit number
in host link
Terminato
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