12
Command/Response Formats Section 2-2
The following diagram shows the response format when there are more than
131 characters.
Note 1. Frames in partitioned commands or responses must have not more than
128 characters including the delimiter/terminator.
2. Delimiters from the host computer are detected by the presence of a CR
code. The delimiter will be detected even if there is data in front of it.
128 characters max. 128 characters max.
PLC
Command frame
Response frame 3
131 characters max.
Response frame 2
Response frame 1
Delimiter
@Unit number
Terminator
Text
FCS
Header code
Host computer
Delimiter
@Unit number
Delimiter
Text
FCS
End code
Header code
Delimiter
Text
FCS
Terminator
Text
FCS
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