ProSoft Technology ProLinx S3964R Manuale Utente Pagina 72

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72 Publication LOGIX-AP010B-EN-P - May 2010
Chapter 3 Software Conversions Instructions
Comparison - Less Than or Equal To
In the following comparison function the Operand 1 is compared to Operand 2 and if Operand 1 <= Operand 2 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
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