of the error: PROGRAM PLC_PRG
: PROGRAM PLC_PRG VAR i :
: PROGRAM PLC_PRG VAR
: PROGRAM PLC_PRG VAR a :
address PLC_PRG [...] 1; PLC_PRG (PRG) PROGRAM PLC_PRG VAR i
PLC_PRG VAR mydut
PLC_PRG VAR test1 :
: PROGRAM PLC_PRG VAR ref