Mitsubishi Electric MELSEC L series, Руководство по программированию

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6 IEC FUNCTIONS
6 IEC FUNCTIONS
How the functions are described
This manual describes the function definitions, arguments, return values and using
examples of the IEC functions.
The IEC functions are created by combining the MELSEC common instructions. For
the applicable devices of the IEC functions, the errors that may occur during execution
of the functions, and the applicable CPU types, refer to the "MELSEC-Q/L
Programming Manual (Common Instructions)". The reference section is the section
described in "Used Instructions" in the " Example of use" table field.
1)
2) 3) 4) 5)
6)
7)
8)
9)
10)
11)
1) Indicates the function of the function.
2) Indicates the data type of the function.
3) Indicates the function name.
4) Indicates the data type of the argument. (The STRING type is represented
STRING (number of characters). It is represented STRING(6) when the
number of characters is 6.)
5) Indicates the argument name.
6) Indicates the list (argument name, IN/OUT, description) of arguments used
with the function.
7) Indicates the list (return value name, description) of return values used with
the function.
8) Indicates the example of using the function. (Indicates the example that uses
the actual device/label.)
9) This example is the one that uses a REAL type (real number type) label.
10) This example is the one that uses a DINT type (double word type) label.
11) Indicates the QCPU (Q mode)/L MELSEC common instruction corresponding
to the function.
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