Automationdirect.com DirectLOGIC DL205 Series User Manual page 435

Chapter 5: Standard RLL Instructions - ASCII
AFIND Search Example
1
In the following example, the AFIND instruction is used to search for the "day" portion of
"Friday" in the ASCII string "Today is Friday.", which had previously been loaded into
V–memory. Note that a Search Starting Index of constant (K) 5 combined with a Forward
2
Direction Seach is used to prevent finding the "day" portion of the word "Today". The Found
Index will be placed into V4000.
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DL205 User Manual, 4th Edition, Rev. B
Base Address
Reverse Direction Search
Search start Index Number
Forward Direction Search
Beginning Index Number
End Index Number
Found Index Number =
ASCII Characters
HEX Equivalent
T
0
54h Low
V3000
o
1 High
6Fh
d
2
64h Low
V3001
a
3 High
61h
y
4 Low
79h
V3002
5 20h High
i
69h
6 Low
V3003
s
High
7 73h
8 20h Low
V3004
F
High
9 46h
r
10 72h Low
V3005
i
High
11 69h
d
12 64h Low
V3006
a
High
13 61h
y
14
79h Low
V3007
.
High
15 2Eh
0012 V4000