Siemens SIMATIC IM 151/CPU - Page 174

Instruction List
B-40
ET 200S Interface Module IM 151/CPU
A5E00058783-01
B.27 Addition via the Address Register
Addition of an integer (16 bits) to the contents of the address register. The value is
in the instruction or in ACCU 1-L. The indicators are not affected.
In-
str c
Address
Description
Length
i
Typical Execution Time in
struc-
tion
Address
ID
Description
in
Words
Typical
Execution
Time
in
s
+AR1 Add contents of ACCU1-L to AR1 1 0.3
+AR1 m Add pointer constant to AR1 2 0.3
+AR2 Add contents of ACCU1-L to AR2 1 0.3
+AR2 m Add pointer constant to AR2 2 0.3
B.28 Comparison Instructions with Integers (16 Bits)
Comparison of the integers (16 bits) in ACCU1-L and ACCU2-L. RLO=1 if the
condition is satisfied.
In-
struc-
tion
Address
ID
Description
Length
in
Words
Typical Execution Time in
s
==I ACCU2-L=ACCU1-L 1 1.4
<>I ACCU2-LACCU1-L 1 1.5
<I ACCU2-L<ACCU1-L 1 1.5
<=I ACCU2-L<=ACCU1-L 1 1.4
>I ACCU2-L>ACCU1-L 1 1.5
>=I ACCU2-L>=ACCU1-L 1 1.4
Status word for: ==I, <>I, <I, <=I, >I,
>=I
BR A1 A0 OV OS OR STA RLO /FC
Instruction depends on: – – – – – – – – –
Instruction controls: – Yes Yes 0 – 0 Yes Yes 1