ST / IL Language selection
"Integrated development environment"
An integrated development environment is a type of computer software that assists computer programmers in developing software.
IDEs normally consist of a source code editor, a compiler and/or interpreter, build-automation tools, and a debugger allows
you to mix ST "Structured text"
A high-level language that is block structured and syntactically resembles Pascal and IL "Instruction list"
This is a low-level language and resembles assembly languages in textual program. ST is the default
language. When you enter IL instructions, the program must be entered
between "BEGIN_IL" and "END_IL" keywords, such as in the following example
BEGIN_IL
FFLD var1
ST var2
END_IL
