MUL

Overview

IEC operator for the multiplication of variables

Allowed types

• BYTE

• WORD

• DWORD

• LWORD

• SINT

• USINT

• INT

• UINT

• DINT

• UDINT

• LINT

• ULINT

• REAL

• LREAL

• TIME

TIME variables can be multiplied with integer variables.

In the FBD/LD editor, the MUL operator is an extensible box. This means, instead of a series of concatenated MUL boxes, you can use 1 box with multiple inputs. Use the command Insert Input for adding further inputs. The number is unlimited.

Example in IL

LD     7
MUL    2     ,
       4     ,
       7
ST     Var1

Example in ST

var1 := 7*2*4*7;

Examples in FBD

1. series of MUL boxes

2. extended MUL box

3. MUL box with EN/ENO parameters