Delta Electronics DVP15MC11T, Руководство по эксплуатации

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Chapter 8 Logic Instructions
8_

When the data types of input variables are not BOOL, TIME, DATE, TOD or STRING, the input
parameters
In1~InN are allowed to be the variables of different data types.

When the data types of input variables are one of BOOL, TIME, DATE, TOD and STRING, all the
input variables and output variable should be of the data type. For example, if the data type of
In1 is
TIME, the data type of In2~InN must be TIME. Otherwise, an error will occur during the compiling of
the software.

Precautions for Correct Use

The input variables are not allowed to omit. An error will occur during the compiling of the software if
the input variables are omitted. But the output variable is allowed to omit.

The length of the data type of the output variable must contain the length of all input parameters.
Otherwise, an error will occur during the compiling of the software

Programming Example

The data types of MAX_In1, MAX_In2 and MAX_In3 are INT, UINT and DINT respectively. The data
type of Out1 is DINT. If the values of MAX_In1, MAX_In2 and MAX_In3 are -10, 50 and 100
respectively, the value of Out1 is 100 when MAX_EN is TRUE.

The variable table and program
Variable name Data type Current value
MAX_EN BOOL TRUE
MAX_In1 INT - 10
MAX_In2 UINT 50
MAX_In3 DINT 100
Out1 DINT 100

The data types of MAX_In1 and MAX_In2 are TIME. The data type of Out1 is TIME.
If the values of MAX_In1 and MAX_In2 are T#1ms and T#50ms respectively, the value of Out1 is
T#50ms when MAX_EN is TRUE.

The variable table and program
Variable name Data type Current value
MAX_EN BOOL TRUE
MAX_In1 TIME T#1ms
MAX_In2 TIME T#50ms
Out1 TIME T#50ms
1
MAX
EN E NO
I n1 Out
I n3
I n2
MAX _EN
MA X_In 1
MA X_In 3
MA X_In 2
Ou t1
1
MAX
EN ENO
In1 Out
MA X_EN
MAX_I n O ut1
In 2 MA X_Num
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