Mitsubishi MELSEC Q Series Reference Manual page 254

(Data name)
External device
side
(Example)
(Data name)
Programmable controller CPU side
(Example)
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3 WHEN COMMUNICATING USING THE QnA COMPATIBLE 3E/3C/4C FRAMES OR 4E FRAME
(2) Communication in binary code
L H L H
28 18 00 00 00
H H H H
POINT
(1) When reading data, the maximum number of bytes per data is predetermined.
Read all the data written to the designated file by dividing it into several parts
by adjusting the offset address and number of bytes read.
Store the data read to the external device as is.
The file size can be checked using the following functions.
• Read file information list read function :
• File search function:
(2) Designate the relevant values within the following range.
• Offset address
• Number of bytes read
L H L - - H L H
00 00 00 00 00 00 04
H H H H H H H H
L
00
: Designate an even number address within the
following range.
0 address  (file size - 1)
: 0 number of bytes 1920
H
L - - - H
04
H H
Refer to Section 3.8.5.
: Refer to Section 3.8.6.
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