Yaskawa Ladder Works Programming Manual Manual de usuario descargar pdf (Pagina 216)

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○ Comparison operator

This operator can be used for the operand of the integer type and the real type.

The register of the bit type should come left. In the case to do the comparison

which uses ‘==’ or ‘!=’ for the operand of the integer bit type, the comparison

object should be an expression of true/false.

ex）

MB000010 = MW00002 != MW00003 OK

MB000010 = MF00002 < 99.99 OK

MB000010 = MW00002 >= MW00003 OK

MB000010 = MB000011 == true OK

MB000010 = MB000011 != 0 NG

MB000010 = MB000011 == 1 NG

○ Logic operator

This operator can be used only for the operand of the bit type.

ex）

MB000010 = MB000011 && MB000012 OK

MB000010 = !MB000011 OK

MB000010 = (MW000020 >= 50) && MB000011 OK

MB000010 = MW00001 || MW00002 NG

MB000010 = !MW00001 NG

○ Substitution operator

If it is a difference of the real type or the integer type even if a right,

left type is different, substitution is possible. However, the rounding error

is caused when substituting from the real type to the integer type.

Substitution for the bit type register can do only a logical value (bit type

value for the bit type register, the values are compared with 0(Or, 0.0), and

the truth is converted into the substituted code. The substitution of the bit

type excluding the bit type register is assumed to be impossible.

ex）

MW00001 = MW00002 OK

ML00003 = MW00002 OK

MF00006 = MW00002 * 343 OK

MB000010 = MB000011 OK

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Yaskawa Ladder Works Programming Manual Manual de usuario Pagina 216