User manual

70 Publication LOGIX-AP010B-EN-P - May 2010
Chapter 3 Software Conversions Instructions
Comparison - Not Equal
In the following comparison function the two operands are compared and if found to be NOT equal then the output is set to
1.
The RSLogix 5000 equivalent bit/word for each bit/word used in the S5 in the following example is shown below:
Function S5 RSLogix 5000
Operand1 IB19 data_word1
Operand2 IB20 data_word2
Output Q3.0 out_bit1
S5 Statement List RSLogix 5000 Structured Text
LIB19
LIB20
>< F
=Q3.0
If data_word1 <> data_word2 THEN
out_bit1 := 1;
else
out_bit1 := 0;
END_IF;
SIMATIC S5 - Ladder
RSLogix 5000 - Ladder