STEP7STL

The application contains information on the programming technique of Siemens Simatic S7-300 PLC industrial controllers in STL.

The application presents all STL commands and discusses with numerous examples such issues as

- work on program selection lists
- support for program loops
- detection of signal edges
- ways to use event counters
- flip-flops, timers, interrupts explained
- use of address registers
- handling of driver errors
and other.