Rievtech PR-12 Series, User Manual And Programmers Manual

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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: