Mitsubishi MELSEC Q Series Reference Manual page 66

External device side
(Data name)
(Example)
5 0 0 0
35 30 30 30
H H H H
Programmable controller CPU side
(Normal completion)
Text (Response)
H L
D 0 0 0 0 0
44 30 30 30
30 30 46
H H H H H H
(Abnormal completion)
Text (Response)
H L
D 0 0 0
0 0
44 30 30 30 30 30 46
H H H H
H H
3 - 6
3 WHEN COMMUNICATING USING THE QnA COMPATIBLE 3E/3C/4C FRAMES OR 4E FRAME
2) When the external device reads data from the programmable controller
CPU on the local station
Programmable controller CPU side
(Command message)
Text (Command)
Q header
H L H L H – – L H
0 0 F F 0 3 F F 0
30 30 46 46 30 33 46 46 30
H H H H H H H H
External device side
(Response message)
Q header
H L H – – L H L H
F F 0 3 F F 0 0 0
46 30 33 46 46 30 30 30
H H H H H H H H H
Q header
H L H – – L H L H
F F 0 3 F F 0 0 0
46 30 33 46 46 30 30 30
H H H H H H H H H
L H – – L H – – L
0 0 0 2 0 0 0 1 0
30 30 30 32 30 30 30 31 30
H H H H H H H H H
– – L H – – L
0 0 4 0 0 0 0
30 30 34 30 30 30 30
H H H H H H H
(4 bytes)
– – L H – – L H L
0 1 6 C 0 5 1 0 0
30 31 36 43 30 35 31 30 30
H H H H H H H H H
Character area C
H – – L H – – L
H
(Example) when this is 32 bytes
The arrangement of the data items differs according
to the command and sub command.
Refer to the sections explaining commands found in
Section 3.3.2 and after for details.
Error information section
H L H – – L H L H
F F 0 3 F F 0 0
46 46 30 33 46 46 30 30
H H H H H H H H
(22 bytes)
Request data section
– – L H – – L
3 - 6