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MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
(2) Program example for a format 2 control table
100 ' A program example that reads extension file register data by specifying sequential addresses
110 DIM TBL%(7),A%(9)
:
'Defines arrays
120 TBL%(0)=256
:
'Specifies a format 2 control table
130 TBL%(1)=1
:
'Specifies network number 1
140 TBL%(2)=1
:
'Specifies station number 1
130 TBL%(4)=7
:
'Specifies to read extension file register
data by specifying sequential addresses
140 D!=0
150 H!=INT(D!/65536!)
160 L!=D!-H!*65536!
170 H$=RIGHT$("0000"+HEX$(H!),4)
:
'The upper byte of the sequential address
180 H$=RIGHT$("0000"+HEX$(L!),4)
:
'The lower byte of the sequential address
190 TBL%(5)=VAL("&H"+L$)
:
'Stores the lower byte in the control table
200 TBL%(6)=VAL("&H"+H$)
:
'Stores the upper byte in the control table
210 TBL%(7)=10
:
'Specifies to read for 10 points
220 PCRD TBL%( ),A%( )
:
'Executes the read operation
230 FOR I=0 TO 9
:
'Displays the data read
240 PRINT A%(1)
250 NEXT I
260 END
