The Workbench Studio allows you to mix ST and IL 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:

example Example

BEGIN_IL
   LD   var1
   ST   var2
END_IL

ST / IL Language selection

IEC 61131-3 Automation platform > IEC 61131-3 Programming Environment > Editing programs > Structured Text (ST) / Instruction List (IL) Editor > ST / IL Language selection

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