Rockwell Automation 1771-DB Basic Module User Manual - Series A - Manual (Page 114)

Operating Functions
Chapter 5
5–77
Example program 1:
uLIST
10
REM STRING ALLOCATION COMPUTATION KNOWING:
20 REM 1)# CHARACTERS IN LONGEST STRING 2)# OF STRING VARIABLES
30 PRINT : PRINT
40 INPUT “HOW MANY CHARACTERS IN YOUR LONGEST STRING”C
50 INPUT “HOW MANY STRING VARIABLES WILL YOU NEED”V
60 PRINT
70 N=(((C+1)*V)+1) : REM COMPUTE THE # OF BYTES OF MEMORY NEEDED
80 PRINT: PRINT
90 PRINT “YOU NEED TO ALLOCATE”,N,“BYTES OF MEMORY FOR”,V,“VARIABLES
100 PRINT ”CONTAINING”,C,“CHARACTERS EACH”
110 PRINT : PRINT
120 PRINT“ STRING”,N“,”,C
130 END
uRUN
HOW MANY CHARACTERS IN YOUR LONGEST STRING
?21
HOW MANY VARIABLES WILL YOU NEED
?15
YOU NEED TO ALLOCATE 331 BYTES OF MEMORY FOR 15 VARIABLES CONTAINING
21 CHARACTERS EACH
STRING 331, 21
READY
5.10.3
String Support Calls
(continued)