Rockwell Automation Logix5000 Controllers ASCII Strings Programming Manual - Manual (Page 23)

Processing ASCII characters Chapter 2
Enter the Product IDs and Lane Numbers
In the sort_table array, enter the ASCII characters to identify each item and the
corresponding lane number for the item.
Use a compare instruction (EQU, GEQ, GRT, LEQ, LES, NEQ) to check for
characters.
• The hexadecimal values of the characters determine if one string is less than
or greater than another string.
• When the two strings are sorted, as in a telephone directory, the order of the
strings determines which one is greater.
Use one of the following compare instruction.
To see if the string is: Enter this instruction:
Equal to specific characters EQU
Not equal to specific characters NEQ
Greater than specific characters GRT
Equal to or greater than specific characters GEQ
Less than specific characters LES
Equal to or less than specific characters LEQ
Check the Bar Code
characters
Rockwell Automation Publication 1756-PM013D-EN-P - October 2014 23