Delta Electronics DVP15MC11T, Руководство по эксплуатации

Страница: 125 / 601

DVP15MC11T Operation Manual
_8

The input parameters In1~InN in this instruction are allowed to be the variables of different types
among bits, integers and real numbers. When In1~InN are the variables of different types, the
addition operation will be performed based on the data type which can contain all valid ranges of
In1~InN values. For example, the data type of Out is DINT if the data type of In1 is INT and In2 is
DINT.

The input and output variables are allowed to be of different data types among bits, integers and
real numbers. When the data types of input and output variables are different, the data type of the
output variable must include the valid ranges of data types of all input variables. Otherwise, there
will be an error during the compiling of the software. For example, if the data types of
In1 and In2 are
INT and DINT respectively, the data type of Out is DINT. There will be an error during compiling of
the software if the data type of the variable that Out is connected to is INT. No error will occur during
the compiling of the software if the data type of the variable that Out is connected to is LINT.

For the data type about time and date, following combinations are supported only.
1. In1 is TIME, In2 is TIME and Out is TIME;
2. In1 is TOD (TIME_OF_DAY), In2 is TIME and Out is TOD;
3. In1 is DT (DAY_AND_TIME), In2 is TIME and Out is DT.

Precautions for Correct Use

The input variables are not allowed to omit. An error will occur during the compiling of the software if
any input variable is omitted. But the output variable is allowed to omit.

The sum of In1~InN may be out of the valid range of the data type of Out.

The difference between In1 and In2 may be out of the valid range of the data type of Out.
For example, the data types of “ADD_In1” and “ADD_In2” are both INT with their respective values,
32767 and 1. If the data type of the output variable is INT, the output variable value will be -32768 as
shown in the following table, variable 1. If the data type of the output variable is set to DINT, the
output variable value will be 32768 as shown in the following table, variable 2.

Variable 1
Variable name Data type Current value
ADD_EN BOOL TRUE
ADD_In1 INT 32767
ADD_In2 INT 1
Out1 INT -32768

Variable 2
Variable name Data type Current value
ADD_EN BOOL TRUE
ADD_In1 INT 32767
ADD_In2 INT 1
Out1 DINT 32768

The program
In 1
In2
InN
In put pa rameter
Addition
Res ult
a ss ignment
O ut
Out put
paramet er
ADD
EN E NO
In1 Out
In2
ADD_EN
ADD_I n1
ADD_I n2
O ut1
8-54