Siemens SIMATIC IM 151/CPU - Page 176

Instruction List
B-42
ET 200S Interface Module IM 151/CPU
A5E00058783-01
B.30 Comparison Instructions (32-Bit Real Numbers)
Comparison of the 32-bit real numbers in ACCU1 and ACCU2. RLO=1 if the
condition is satisfied. The execution time of the instruction depends on the value to
be compared.
In-
struc-
tion
Address
ID
Description
Length
in
Words
Typical Execution Time in
s
==R ACCU2=ACCU1 1 < 45
<>R ACCU2ACCU1 1 < 45
<R ACCU2<ACCU1 1 < 45
<=R ACCU2<=ACCU1 1 < 45
>R ACCU2>ACCU1 1 < 45
>=R ACCU2>=ACCU1 1 < 45
Status word for: ==R,< >R, <R, <=R,
>R, >=R
BR A1 A0 OV OS OR STA RLO /FC
Instruction depends on: – – – – – – – – –
Instruction controls: – Yes Yes Yes Yes 0 Yes Yes 1