IEC 61131-3 functions

Conventional programming requires different instructions, e.g. for addition:

Flexible IEC instructions can be overloaded: 1 instruction instead of several

16-bit

Addition is executed when EN is TRUE.

Addition is executed every PLC cycle:

32-bit

®

Floating point data

All operands must be of the same data type.

Conventional programming requires several instructions, e.g. for addition:

Extensible IEC instructions: one instruction instead of several

®

To extend the function:

• Move the cursor over the bottom of a resizable element until the cursor changes to an arrow.

• Pull to desired number of inputs