Installation manual
CNC 8035
PLC PROGRAMMING
Operators and symbols
8.
(SOFT M: V15.3X)
(S
OFT T: V16.3X)
·305·
8.4 Operators and symbols
Used to group and operate with different consulting instructions.
The operators are associated from left to right and the priorities ordered from the highest to the
lowest are:
NOT AND XOR OR
With the "(" and ")" symbols, it is possible to clarify and select the order in which the logic expression
is evaluated.
Example: (I2 OR I3) AND (I4 OR (NOT I5 AND I6)) = O7
NOT
Reverses the result of the consultation.
NOT I2 = O3
Output "O3" will be active when input I2 is not.
AND
Logic function "AND".
I4 AND I5 = O6
Output "O6" will be active when both inputs (I4, I5) are active.
OR
Logic function "OR".
I7 OR I8 = O9
Output "O9" will be active when either one (or both) inputs are active.
XOR
Logic "Exclusive OR" function.
I10 XOR I11 = O12
Output "O12" will be active when both inputs I10 and I11 have different logic states.
()
Open and close parenthesis.
They help clarify and select the order the logic expression is evaluated.
Example: (I2 OR I3) AND (I4 OR (NOT I5 AND I6)) = O7
A consulting instruction consisting of only these two operators always has a value of "1", i.e.
( ) = O2
Output O2 will always be high (=1).
The available operators are: NOT AND OR XOR
The available symbols are: ( )
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