Mitsubishi MELSEC Q Series Programming Manual page 460

WTOB(P),BTOW(P)
(2) Setting the number of bytes with n automatically determines the range of the 16-bit data
designated by
(3) No processing will be conducted when the number of bytes designated by n is "0".
(4) The "00
designated by
b15
D12
32
D13
34
D14
36
(5) Even though the range of the device with the data to be devided (
same as the range of the device with the devided data (
operates correctly.
BTOW
(1) Links the lower 8 bits of the 16-bit data in n words stored in the area starting from the device
designated by
designated by
designated by
bits of the device where the nth byte data is stored.
b15
S
S +1
S +2
n bytes
+3
S
S +(n-1)
Upper bytes are ignored.
For example, if n
to (
D
b15
S
00
H
S +1
00
H
If n = 5 +2
S
00
H
S +3
00
H
+4
S
00
H
(2) Setting the number of bytes with n automatically determines the range of the byte data
designated by
(3) No processing will be conducted when the number of bytes designated by n is "0".
7-86
and the range of the devices to store the byte data designated by
S
" code will automatically be stored at the upper 8 bits of the byte storage device
H
.
D
b8 b7 b0
31
H H
33
H H
35
H H
in 1-word units and stores it into the area starting from the device
S
. The upper 8 bits of n-word data stored in the area starting from the device
D
will be ignored. Further, if n is an odd number, 0 is stored at the upper 8
S
b8b7
Data of the 1st byte
Data of the 2nd byte
Data of the 3rd byte
Data of the 4th byte
Data of the nth byte
5, the lower 8 bits of data from
+2).
b8b7 b0
12
H
34
H
56
H
78
H
FE
H
and the range of the devices to store the linked data designated by
S
b15
D11
D12
D13
D14
D15
D16
Stores 00
D
b0
b15
D
Data of the 2nd byte
D Data of the 4th byte
*1
n
D +( -1)
Data of the nth byte
2
*1: Figures after the decimal point are rounded up.
to (
S S
b15
D
34
D +1 78
00
D +2
00
H
b8 b7
00 31
H H
00 32
H H
00 33
H H
00 34
H H
00 35
H H
00 36
H H
H.
n
to +( -1)) is the
S S
2
to +(n-1)), the instruction
D
b8 b7
Data of the 1st byte
Data of the 3rd byte
Data of the (n-1) byte
+4) are linked and stored at
b8 b7
12
H H
56
H H
FE
H
H
is set.
.
D
b0
b0
D
b0
.
D