Panasonic PV500 - Page 247

245
Setting Inspection Conditions
Chapter 4
INDEX
About Operators
Use operators to judge results of multiple checkers or numerical calculations.
+: Logical sum
Returns "OK (1)", if the result of either A or B is OK (1).
Example: JDC001=A+B
A
B
JDC001
OK (1)
OK (1)
OK (1)
OK (1)
NG (0)
OK (1)
NG (0)
OK (1)
OK (1)
NG (0)
NG (0)
NG (0)
*: Logical product
Returns "OK (1)", if the results of both A and B are OK (1).
Example: JDC001=A*B
A
B
JDC001
OK (1)
OK (1)
OK (1)
OK (1)
NG (0)
NG (0)
NG (0)
OK (1)
NG (0)
NG (0)
NG (0)
NG (0)
#: Exclusive OR
Returns "OK (1)", if the results differ between A and B.
Example: JDC001 = A # B
A
B
JDC001
OK (1)
OK (1)
NG (0)
OK (1)
NG (0)
OK (1)
NG (0)
OK (1)
OK (1)
NG (0)
NG (0)
NG (0)
/: Negation
Reverses a judgement.
Do not put a symbol "/” before the multiple contents in
parentheses.
Wrong: JD01=/(A+B)
Correct: JD01=/A+/B
Example: JDC001=/A
A
/
JDC001
OK (1)
Reversed
NG (0)
NG (0)
Reversed
OK (1)
JDC001 = / (A + B) ← Wrong: Because A and B is in parentheses.
JDC001 = / A * / B ← This means the same as the above formula. (Boolean algebra, De Morgan's laws)
Or store the formula of A+B in JRC (Internal) once, and then negate the JRC.
JDC002 = / (A * B) ← Wrong: Because A and B is in parentheses.
JDC002 = / A + / B ← This means the same as the above formula. (Boolean algebra, De Morgan's laws)
Or store the formula of A*B in JRC (Internal) once, and then negate the JRC.
(: Left parenthesis
): Right parenthesis
Judges the contents in parentheses by
priority.