IEC 61131-3 functions

Example 1

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