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Ana/Anucpu Common Commands And Device Numbers - Mitsubishi MELSEC Q Series Reference Manual

With melsec communication protocol
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6.4.2 AnA/AnUCPU common commands and device numbers

Command/response
Item
format
Direct read
3B
Direct write
3C
In the programmable controller CPU status column of the table above,
executable.
Device numbers designated with the ACPU
common commands shown in Section 6.4.1.

0

to
Block number 1
8191
0
to
Block number 2
8191
6 - 43
(1) This section explains the AnUCPU dedicated commands used for directly reading
from and writing to the extension file register.
This command allow the access to extension file register blocks numbered from
0 to 256 by designating addresses from device number 0 of block number 1 as
the device number, regardless of each block number.
(Access the extension file registers for the usable block count  8192 points
using consecutive device numbers.)
Processing
Reads extension file register (R) in 1-point
H
units.
Writes to extension file register (R) in 1-point
H
units.
(2) Device number of extension file register
The range of device numbers that can be designated is as follows.
0 to (number of available blocks  8192) - 1
1 word
6 WHEN COMMUNICATING USING THE A COMPATIBLE 1E FRAMES
Number of points
processed per
communication
256 points
256 points
indicates that the corresponding function is executable and
Device numbers designated with the AnA/AnUCPU
common commands shown in Section 6.4.2.
0
to
8191
8192
to
16383
16384
Device numbers are automatically assigned in
ascending order beginning from the device with
block number 1 to the device with block number 256.
Programmable controller CPU status
During
STOP
Write enabled
indicate that it is not
Area of
black number 1
Area of
black number 2
1 word
During RUN
Write disabled
6 - 43

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