PLC Standard Libraries
Program organization units
Data types
Structures
Variables
Arrays
Constant expressions
Conditional compiling
Handling exceptions
SFC: Sequential Function Chart
FBD: Function Block Diagram
FFLD: Free Form Ladder Diagram
ST: Structured Text
IL: Instruction List
Use of ST instructions in graphic languages
- Basic Operations
- Boolean operations
- Arithmetic operations
- Comparison Operations
- Type conversion functions
- Selectors
- Registers
- Counters
- Timers
- Mathematic operations
- Trigonometric functions
- String operations
- PLC Advanced Libraries
Note: Some other functions not documented here are reserved for diagnostics and special operations. Please contact your technical support for further information.