Siemens SINUMERIK 828D Function Manual page 20

Detailed description
2.3 System variables for synchronized actions
Boolean operators
Operator
NOT
AND
OR
XOR
Bit logic operators
Operator
B_OR
B_AND
B_XOR
B_NOT
Priority of the operators
The operators have the following priorities for execution in the synchronized action (highest
priority: 1):
Prio.
10
11
Note
It is strongly recommended that the individual operators are clearly prioritized by setting
parentheses "( ... )" when several operators are used in an expression.
20
Meaning
NOT
AND
OR
Exclusive OR
Meaning
Bit-by-bit OR
Bit-by-bit AND
Bit-by-bit exclusive OR
Bit-by-bit negation
Operators
1 NOT, B_NOT
2 *, /, DIV, MOD
3 +, -
4 B_AND
5 B_XOR
6 B_OR
7 AND
8 XOR
9 OR
<<
==, <>, <, >, >=, <=
Meaning
Negation, bit-by-bit negation
Multiplication, division
Addition, subtraction
Bit-by-bit AND
Bit-by-bit exclusive OR
Bit-by-bit OR
AND
Exclusive OR
OR
Concatenation of strings, result type STRING
Relational operators
Function Manual, 07/2012, 6FC5397-5BP40-3BA0
Synchronized actions