Bit Logic Instructions with Parenthetical Expressions
28
S7-400 Instruction List
A5E00267845-01
Bit Logic Instructions with Parenthetical Expressions
Saving the RLO and OR bits and the relevant function identifier (A, AN, ...) to the nesting stack. Seven nesting levels are possible per
block. After the right parenthesis, the logic operation indicated by the function identifier is performed on the saved RLO and the current
RLO; the current OR is overwritten with the saved OR.
In-
struc-
Address
ID
Description
Length
in
Execution Time in
s
struc-
tion
in
Words
CPU 412
CPU 414
CPU 416
CPU 417
U(
AND left parenthesis
1
0.1
0.06
0.04
0.03
UN(
AND NOT left parenthesis
1
0.1
0.06
0.04
0.03
O(
OR left parenthesis
1
0.1
0.06
0.04
0.03
ON(
OR NOT left parenthesis
1
0.1
0.06
0.04
0.03
X(
Exclusive OR left parenthesis
1
0.1
0.06
0.04
0.03
XN(
EXKLUSIV-ODER-NICHT-Klam-
parenthesis
1
0.1
0.06
0.04
0.03
Statusword for:
U(, UN(, O(, ON(, X(,
XN(
BR
CC1
CC0
OV
OS
OR
STA
RLO
/FC
Instruction evaluates:
–
–
–
–
–
Yes
–
Yes
Yes
Instruction affects:
–
–
–
–
–
0
1
–
0