xLadder user manual-V2.0.0.6

6.14.5 STR - FIND

Input/output Operand

Data type

IN1, IN2

VB, constant string, LB, *VD, *LD, *AC

string

OUT

VB, IB, QB, MB, SB, SMB, LB, AC, *VD, *LD, *AC

byte

STR - FIND:The instruction searches for the string IN2 in

the string IN1 .Search starts from the OUT start position.If

you find a string that is the same as the string IN2, the

first character position of the string is written to the

OUT.If you do not find IN2 in IN1,OUT is set to 0.The

longest length of a single constant string is 126 bytes.The

longest comprehensive length of two constant strings is

240 bytes.

error conditions:

0006 Indirect address

0091 Operand range

009B Illegal index

ASCII constant string data type format :

String is a series of characters, each character is stored as a byte.The first byte of a

string defines the length of the string, that is the number of characters.If a constant

string is entered directly into the program editor or data block, the string must start

and end with double quotation marks ("string constant").

Example:

187

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