Mitsubishi Electric QJ71DN91 User Manual page 63

3 SPECIFICATIONS
Buffer memory
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(2) Master Function Transmit Data (address: 0900
2559)
Data to be sent to each slave node are set in this area.
Data are aligned on word boundaries of slave nodes and stored as shown below.
For double-word data, the low word is stored first and then the high word.
When the number of byte input modules is an odd number, one byte of an empty
area is inserted.
The following is an example.
<Example>
1st node - Number of byte output modules = 3
2nd node - Number of byte output modules = 1
3rd node - Number of byte output modules = 1
address
0900
2nd byte module
H
0901
Empty
H
0902
1st word module
H
0903
2nd word module
H
Low word of
0904
H
the 1st double-word module
High word of
0905
H
the 1st double-word module
Low word of
0906
H
the 2nd double-word module
High word of
0907
H
the 2nd double-word module
0908 Empty
H
Empty
0909
H
Number of word output modules = 2
Number of double-word output modules = 2
When the number of byte input
modules is an odd number,one
byte of an empty area is inserted.
1st byte module
3rd byte module
Output data of the 1st node
Output data of the 2nd node
1st byte module
Output data of the 3rd node
1st byte module
MELSEC-Q
to 09FF /2304 to
H H
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