Yaskawa Ladder Works Programming Manual - Manual (Page 215)

A-3
in C language. The bool type variable takes only either of value of true or false. It can be used
only for the logical expression.
The following limitations are installed in the variable name which can be used.
It is started from characters other than the numerical value.
The character which can be used is alphabet and underscore ‘_’, and figures among ASCII
characters.
The same variable name as the following function names cannot be used.
Ex: Abc OK
get_input0 OK
1ab NG
Sin NG
1.2 Function
The following arithmetic functions can be used.
cos(), sin(), arctan(), tan()
2. Recognizable expression
The Expression is described by combining the operand and the operator. There are some restrictions
in the description method. The restriction is explained as follows.
○ Arithmetic operator
This operator can be used for the operand of the integer type and the real type.
The monadic minus can be used only once. The bit operation can use only the integer type. The
arithmetic operation cannot be used for the operand of the bit type.
Even if the calculation value exceeds the range of the register, the type conversion is not
automatically done. Therefore, the user should allocate an appropriate type in the variable.
Example:
MW00001 = MW00002 + MW00003 OK
MW00001 = MW00002 / 345 OK
MF00002 = (MW00004 + MF00002) / (ML00018 + MW00008) OK
MW00001 = MW00002 & 4096 OK
MB000010 = MB000011 – MB000012 NG
MW00001 = MB000011 * MW00001 NG