BACnet.IEC_BACNET_PROPERTY_ID; rVal : REAL; END_VAR [...] ) ); END_VAR BACreal [...] BACnetRealProperty VAR_INPUT prop

PropVal : REAL; END_VAR IF NOT [...] 的响应被读入局部变量： PROGRAM PLC_PRG VAR [...] .CmpBACnet.IEC_BACNET_PROPERTY_ID.PROP_PRESENT_VALUE, nIndex:= -1); END