Mitsubishi A1SD51S, Руководство по программированию

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MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
• Assign values to %(3) and %(4) ( %(6) and %(7) in case of a format 2
control table, %(7) and %(8) in case of a format 3 control table) in the
following manner.
D!
H!
L!
H$
L$
• • • • • •
• • • • • •
Device number of the device to be written
Used as work areas.
to
100
110
120
130
140
150
to
H!=INT(D!/65536!)
L!=D!-H!*65536!
H$=RIGHT$(“0000”+HEX$(H!),4)
L$=RIGHT$(“0000”+HEX$(L!),4)
%(3)=VAL(“&H”+L$) • • • • • • • • • •
%(4)=VAL(“&H”+H$) • • • • • • • • • •
In case of a format 2 control table
%(6)=VAL(“&H”+L$)
%(7)=VAL(“&H”+H$)
Program Example
(1) Program example for a format 1 control table
100 'A program example that writes data to a Q/QnA series PLC CPU’s device memory
110 DIM TBL%(10),A%(20) : 'Defines arrays
120 TBL%(0)=255 : 'Specifies the station number to
communicate with to the local station
130 TBL%(1)=515 : 'Specifies to write data to device memory of
the Q/QnA series CPU
140 TBL%(2)=144 : 'Specifies internal relays M
150 D!=0
160 H!=INT(D!/65536!) : 'Splits into lower and higher digits
170 L!-D!-H!*65536!
180 H$=RIGHT$(“0000”+HEX$(H!),4)
190 L$=RIGHT$(“0000”+HEX$(L!),4)
200 TBL%(3)=VAL(“&H”+L$) : 'Specifies the starting number (lower) of the
device to be written
210 TBL%(4)=VAL(“&H”+H$) : 'Specifies the starting number (higher) of
the device to be written
220 TBL%(5)=16 : 'Specifies the number of points to be
written
230 A%(0)=&HF
240 PCWT TBL%( ),A%( ) : 'Executes the write operation
250 END