Delta DVP-15MC Series - Page 155

DVP-15MC Series Motion Controller Operation Manual
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 The input parameters In1 ~ InN are allowed to be the variables of different data types in this
instruction. When In1 ~ InN are the variables of different data types, the multiplication will be
performed based on the data type which can contain 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 in this instruction. When the
data types of input and output variables are different, the range of 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 the 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.
 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 multiplication result of In1 ~ In2 may be out of the valid range of the data type of Out.
For example, the data types of “MUL _In1” and “MUL _In2” are both INT with their respective
values, 20000 and 2. If the data type of the output variable is INT, the output variable value will be -
25536 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 40000 as shown in the following table, Variable 2.
 Variable 1
Variable name Data type Current value
MUL_EN
BOOL
TRUE
MUL _In1
INT
20000
MUL _In2
INT
2
Out1
INT
-25536
 Variable 2
Variable name
Data type
Current value
MUL_EN
BOOL
TRUE
MUL _In1
INT
20000
MUL _In2
INT
2
Out1
DINT
40000
 The Program
1
MUL
EN ENO
In1 Out
In2
MUL_EN
MUL_In1
MUL_In2
Out1
 Programming Example
 The data types of variables MUL _In1, MUL _In2 and Out1 are all INT. The values of MUL _In1 and
MUL _In2 are 10 and 50 respectively. The value of Out1 is 500 when MUL _EN changes to TRUE.
In1
In2
InN
Input parameter
Multiplication
Result
assignment
Out
Output
parameter