Mitsubishi QD51 Programming Manual page 511

11 INSTRUCTIONS AND FUNCTIONS
Buffer memory viewed
from the PLC CPU
(Address)
23
H
1
(H)
00
H
2
(H)
00
H
3
(H)
11 - 341
• Data is stored in <storage area for data to be written> as follows:
Example: When writing data to buffer memory addresses 1 to 3 of an AD61
module whose I/O addresses are X/Y40 to X/Y5F.
1) If an input element is specified as an integer variable/array, the data is stored
as follows:
PCRD TBL%( ), SD%( )
Number of bytes to be written • • • • 6 bytes
Starting address • • • • • • • • • • • •
Module number • • • • • • • • • • • • •
Buffer memory viewed
from the PLC CPU
(Address)
23
H
1
(H)
00
H
2
(H)
00
H
3
(H)
2) If an input element is specified as a character variable or character array
variable name:
PCRD TBL%( ), SD%( )
Number of bytes to be written • • • • 6 bytes
Starting address • • • • • • • • • • • •
Module number • • • • • • • • • • • • •
Buffer memory viewed
from the BASIC program
(Address)
45
45 82
H
H
(L)
83 23
H
84
12
12
H
H
(L)
85 00
H
86 18
18
H
H
(L)
87 00
H
Specify
82
H
05
H
Buffer memory viewed
from the BASIC program
(Address)
82 45
45
H
H
(L)
83 23
H
84 12
12
H
H
(L)
85 00
H
86 18
18
H
H
(L)
87 00
H
82
H
05
H
SD $
(L)
H
(H)
H
(L)
H
(H)
H
(L)
H
(H)
H
(L)
H
SD%(0)
(H)
H
(L)
H
SD%(1)
(H)
H
(L)
H
SD%(2)
(H)
H
Specify
Storage status
of data written
1st 2nd 3rd 4th
character
character character character
45 23 12 00
H H H
MELSEC-Q
Storage status
of data written
23 (H) 45 (L)
H H
00 (H) 12 (L)
H H
00 (H) 18 (L)
H H
5th 6th
character character
18 00
H H H
11 - 341