' := '-100'} PROGRAM PLC_PRG
PROGRAM PLC_PRG VAR by
PROGRAM PLC_PRG VAR x
0164 *) PROGRAM PLC_PRG VAR
_VAR PROGRAM PLC_PRG VAR
PROGRAM PLC_PRG VAR END [...] : 功能块的状态通常在多个 PLC 周期
_TYPE PROGRAM PLC_PRG VAR
PROGRAM PLC_PRG VAR i