Chapter 8 Logic Instructions
8.8.5 MOD
FC
MOD finds the remainder for division of two integer variables or constants.
DVP15MC11T
Parameters
Meaning
Description Valid range
In1 Dividend Input Dividend
Depends on the data type of
the variable that the input
parameter is connected to.
In2 Divisor Input Divisor
Depends on the data type of
the variable that the input
parameter is connected to. 0 is
excluded.
Out Remainder Output
The remainder got by dividing
In1 by In2
Depends on the data type of
the variable that the output
parameter is connected to.
Boolean
Bit string Integer
Real
number
Time, date
String
BOOL
BYTE
WORD
DWORD
LWORD
USINT
UINT
UDINT
ULINT
SINT
INT
DINT
LINT
REAL
LREAL
TIME
DATE
TOD
DT
STRING
In1
● ● ● ● ● ● ● ● ● ● ● ●
In2
● ● ● ● ● ● ● ● ● ● ● ●
Out
● ● ● ● ● ● ● ● ● ● ● ●
Note:
The symbol ● indicates that the parameter is allowed to connect to the variable or constant of the data type.
Function Explanation
The instruction is used to get the remainder of the division of two integer variables or constants. The
result is output to Out, that is, Out= In1 – (In1/ In2)*In2.
The input variable and input variable or the input variable and output variable are allowed to be of
different data types in this instruction. 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 the compiling of the software if the data type of Out is INT. No error will occur during
the compiling of the software if the data type of Out is LINT.
8-65
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