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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 buffer memory 1 of the intelligent functional module (Q68AD)
110 '(Starting address of Q68AD: &H80)
120 DIM TBL%(20),A%(10)
:
'Define arrays
130 TBL%(0)=256
:
'Specifies a format 2 control table
140 TBL%(1)=1
:
'Specifies network number 1
150 TBL%(2)=1
:
'Specifies station number 1
160 TBL%(4)=533
:
'Specifies to read buffer memory
170 TBL%(5)=&H9
:
'Specifies the starting I/O number
180 D!=&H94
:
'Specifies the buffer memory address
190 H!=INT(D!/65536!)
:
'Splits into lower and higher digits
200 L!=D!-H!*65536!
210 H$=RIGHT$("0000"+HEX$(H!),4)
220 L$=RIGHT$("0000"+HEX$(L!),4)
230 TBL%(6)=VAL("&H"+L$)
:
'Stores the lower digit of the buffer memory
address
240 TBL%(7)=VAL("&H"+H$)
:
'Stores the higher digit of the buffer
memory address
250 TBL%(8)=2
:
'Specifies the number of points to be read
260 PCRD TBL%(),A%()
:
'Executes the read operation
270 PRINT "Digital output of CH1=";A%(0)
:
'Displays the result
280 END
