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9 - 6
MELSEC-F
WHEN COMMUNICATING DATA USING THE MC PROTOCOL9
9 - 6
2) When writing data to the local station PLC from the external device side
External device side
PLC side (Command message)
PLC side
External device side (Response message)
(Normal completion) (Abnormal completion)
Text (Command)
(Data name)
(Example)
Header
Subheader
PC No.
Monitoring
timer
LH
02
H
FFH
0AH
00H
The contents and arrangement of the data items in
the text differs according to the function to use.
See the sections explaining functions found in
Subsection 9.3.2 and after for details
Text (Response)
Header
Subheader
Complete code
When complete code
5B
H is returned
Text (Response)
Header
Subheader
Complete code
Abnormal code
Character area C
00
H82H
Exists only when the complete code is "5B."
00
H
82H
5BH
12H