Data Request - Mitsubishi MELSEC-Q Series User Manual

4 VERIFYING THE OPERATION OF THE WEB FUNCTION USING
A SAMPLE SCREEN

4.4.3 Data Request

Text (Command)
Network
Subheader
PC No.
No.
H L H L H
5 0 0 0 0 0 F F 0
35 30 30 30 30 30 46 46 30
H H H H H H H H H
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The Data Request function accesses the programmable controller CPU by inputting
the application data of the MC protocol (QnA compatible 3E frame).
This section explains how to read four points of the data registers D0 through D3 by
specifying the application data of Device Memory Batch Read (command 0401) for the
QnA compatible 3E frame.
(1) Data Request screen
Setting item
Connection target
Command Data
(Example) The following shows an example of the format for the application data
of the MC protocol that is equivalent to the command data.
Q header
Request Request
destination
destination
Request data
module
module
length
station
I/O No.
No.
- - L H L H - - L
3 F F 0 0 0 0 1 8
33 46 46 30 30 30 30 31 38
H H H H H H H H H
Specify this part in the command data.
Setting value
10. 97. 85. 200
500000FF03FF000018001004010000D 0000000004
CPU
Command Subcommand
monitoring
timer
H - - L H - - L H
0 0 1 0 0 4 0 1 0
30 30 31 30 30 34 30 31 30
H H H H H H H H
Device
Head device
code
- - L H - - -
0 0 0 D 0 0 0 0
30 30 30 44 2A 30 30 30 30
H H H H H H H H H
MELSEC-Q
Number of
device
- L H - - L
0 0 0 0 0 4
30 30 30 30 30 34
H H H H H H H
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