11 - 210 11 - 210
MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
• Assign values to %(3) and %(4) ( %(6) and %(7) in case of a format 2
control table) in the following manner.
D!
• • • • • • •
Address viewed from the communication module
H!
L!
H$
L$
• • • • • •
Used as a work area.
to
100 H!=INT(D!/65536!)
110 L!=D!-H!*65536!
120 H$=RIGHT$(“0000”+HEX$ (H!))
130 L$=RIGHT$(“0000”+HEX$ (L!))
In case of a format 2 control table
140 %(3)=VAL(“&H+L$)
150 %(4)=VAL(“&H+H$)
to
• • • • • • •
• • • • • • •
%(6)=VAL(“&H+L$)
%(7)=VAL(“&H+H$)
• Data is stored in <storage area for data read> in the following manner.
Example: When reading data in buffer memory addresses 1 to 3 from an AD61
module whose I/O addresses are from X/Y40 to X/Y5F.
1) If an input element is specified as a positive variable/array, the data is stored
as follows:
Number of bytes to be read • • • • 6 bytes
Starting address • • • • • • • • • • •
Module number • • • • • • • • • • • •
82
H
05
H
PCRD TBL%( ), RD%( )
23
H
(H)
45
H
(L)
RD%(0)
00
H
(H)
12
H
(L)
RD%(1)
18
H
(L)
00
H
(H)
RD%(2)
45
H
(L)
23
H
(H)
00
H
(H)
12
H
(L)
18
H
(L)
00
H
(H)
23
H
(H)
00
H
(H)
45
H
(L)
12
H
(L)
18
H
(L)
00
H
(H)
1
2
3
82
H
83
H
84
H
85
H
86
H
87
H
(Address)
Storage status
of data read
Buffer memory viewed
from the BASIC program
Buffer memory viewed
from the PLC CPU
(Address)
Specify
