Batch Reading Of The Extension File Register (Command: 17) - Mitsubishi MELSEC Q Series Reference Manual

6.4.4 Batch reading of the extension file register (command: 17)

[Control procedure]
(Data name)
External device
side
(Example)
(Data name)
Programmable controller CPU side
(Example)
6 - 47
The examples shown in this section explain the command/response format when
batch-reading extension file registers.
For more details on the order and contents of data items of the areas marked by " "
shown in the control procedure diagram, refer to Section 6.1.
Reading the contents of R70 to R72 in extension file register number 2 block of the
programmable controller CPU on which the E71 is loaded.
(1) Communication in binary code
Device No.
L L
H - -
17 FF 0A 00 46 00 00
H H H H H H H
Designates R70
REMARKS
Use the designation "00
6 WHEN COMMUNICATING USING THE A COMPATIBLE 1E FRAMES
L
- - H H
00 20 59 02 00 03 00
H H H H H H H
Designates the
block No.2
Indicates the content of R70 in block No. 2
Indicates the content of R71 in block No. 2
Indicates the content of R72 in block No. 2
" when the number of device points is 256 points.
H
Data for the number of
designated device points in
the designated block No.
Characters for the
number of device points
L H L L
H H
97 00 34 12 65 87 3F 01
H H H H H H H H
6 - 47