Mitsubishi Electric MELSEC IQ-R series Reference Manual page 359

Communication example (Reading bit device memory)
Read bit devices in 16-point units under the following conditions.
• Message wait: 0 ms
• Head device: X040
• Number of device points: 32 points (2 words)
(Request data)
■When using WR (ACPU common command)
Message wait
Head device
W R 0 X 0 0 4
57 52 30 58 30 30 34
H H H H H H H
■When using QR (AnA/AnUCPU common command)
Message wait
Head device
Q R 0 X 0 0 0
51 52 30 58 30 30 30
H H H H H H H
(Response data)
Data read
0001 0010
(Hexadecimal : 1) (Hexadecimal : 2)
31 32
H H
(X4F) to (X4C) (X4B) to (X48)
Communication example (Reading word device memory)
Read word devices in 1-point units under the following conditions.
• Message wait: 0 ms
• Head device: Current value of T123
• Number of device points: 2 points (2 words)
(Request data)
■When using WR (ACPU common command)
Message wait
Head device
W R 0 T N 1 2
57 52 30 54 4E 31 32
H H H H H H H
■When using QR (AnA/AnUCPU common command)
Message wait
Head device
Q R 0 T N 0 0
51 52 30 54 4E 30 30
H H H H H H H
(Response data)
Data read
7 B C 9 1 2 3 4
37 42 43 39 31 32 33 34
H H H H H H H H
(T123) (T124)
Number of device points
(Number of words)
0 0 2
30 30 32
H H H
Number of device points
(Number of words)
0 4 0 0 2
30 34 30 30 32
H H H H H
0011 0100
(Hexadecimal : 3) (Hexadecimal : 4)
33 34
H H
(X47) to (X44) (X43) to (X40)
Number of device points
(Number of words)
3 0 2
33 30 32
H H H
Number of device points
(Number of words)
1 2 3 0 2
31 32 33 30 32
H H H H H
1010 1011
(Hexadecimal : A) (Hexadecimal : B)
41 42
H H
(X5F) to (X5C) (X5B) to (X58) (X57) to (X54)
17 COMMUNICATING USING 1C FRAMES
17.4 Device Memory Read and Write
1100 1101
(Hexadecimal : C) (Hexadecimal : D)
43 44
H H
(X53) to (X50)
17
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