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11 INSTRUCTIONS AND FUNCTIONS
(3) Program example a for format 3 control table
100 'A program example that reads the device memory of the Q/QnA series CPU
110 DIM TBL%(10),A%(100)
120 TBL%(0)=257
130 TBL%(1)=1
140 TBL%(2)=1
150 TBL%(4)=515
160 TBL%(5)=&H03E3
170 TBL%(5)=144
180 D!=0
190 H!=INT(D!/65536!)
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$)
240 TBL%(7)=VAL("&H"+H$)
250 TBL%(8)=10
260 PCRD TBL%(),A%()
270 I=0
280 FOR I=0 TO 100
290 PRINT HEX$(A%(I))
300 NEXT I
310 END
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:
'Defines the arrays
:
'Specifies a format 3 control table
:
'Specifies network number 1
:
'Specifies station number 1
:
'Specifies to read device memory of the
Q/QnA series CPU
:
'Specifies the requested CPU (PLC No.4)
:
'Specifies internal relays M
:
'Specifies device number 0
:
'Splits into lower and higher digits
:
'Stores the lower digit of the device number
:
'Stores the higher digit of the device
number
:
'Specifies the number of points to be read
:
'Executes the read operation
MELSEC-Q
11 - 234
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