Yaskawa MP900 Series Machine Controller New Ladder Editor - Manual (Page 241)

A.1 Expression
A-3
A
Substitution Operator
= A right value is substituted for a left value
Reserved Word
true/false Value to logical expression
„ Priority Level and Uniting Rule
There is a priority level in the operator, and the uniting rule is applied.
The priority level and the uniting rule (order from which the operand is evaluated) of the
operator are settled in the next table. The table is sequentially shown from the operator with
a high priority level. The operator of the same line has the same priority level, and is evalu-
ated according to the uniting rule.
When using IF, WHILE and EXPRESSION instruction by hexadecimal, describe 0x††††. Descrip-
tion of H†††† is error.
When using the others instruction, describe H††††.
Operator Explanation Uniting Rule
[ ] ( )
- !
∗ / %
+ -
< > <= >=
== !=
&
|
&&
| |
expression
monadic
multiplication, division,
surplus
addition, subtraction
relation
relation (value)
AND of each bit
OR of each bit
logical AND
logical OR right from left
left from right
right from left
right from left
right from left
right from left
right from left
right from left
right from left
right from left
INFO