Common abbreviations and technical terms - References - SIMATIC AX - Support documentation - ST Style Guide,

In this styleguide, there will be used some abbreviations and technical terms. Here is a list with explanations:

The following abbreviations are used within the text:

Abbr.	Type
FB	Function block
FC	Function
TO	Technology object
SFB	System function block
SFC	System function
POU	Program organization unit
ST	Structured text

The following technical terms are used within the text:

Term	Explanation
Identifier	The name of an object used to structure your program or store data, e.g. function names, elementary datatypes, structured datatypes, classes, methods, etc.