Flexible NC programming
1.4 Comparison and logic operations
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
67
Bit-by-bit logic operator
Significance
B_AND
Bit-serial AND
B_OR
Bit-serial OR
B_NOT
Bit-serial negation
B_XOR
Bit-serial exclusive OR
Note
In arithmetic expressions, the execution order of all the operators can be specified by
parentheses, in order to override the normal priority rules.
Note
Spaces must be left between BOOLEAN operands and operators.
Note
The operator
B_NOT only refers to one operand. This is located after the operator.
Examples
Example 1: Relational operators
IF R10>=100 GOTOF DEST
or
R11=R10>=100
IF R11 GOTOF DEST
The result of the
R10>=100 comparison is first buffered in R11.
Example 2: Logic operators
IF (R10<50) AND ($AA_IM[X]>=17.5) GOTOF DESTINATION
or
IF NOT R10 GOTOB START
NOT only refers to one operand.
Example 3: Bit-by-bit logic operators
IF $MC_RESET_MODE_MASK B_AND 'B10000' GOTOF ACT_PLANE
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