FC块内的一段程序 该怎么理解哪？


/// INITIALIZATION

LAR1 P##_PI1_StatWord1
L #iPI_1
T LW [AR1,P#0.0]

LAR1 P##_PI2_CurrVal
L #iPI_2
T LW [AR1,P#0.0]

LAR1 P##_PI3_StatWord2
L #iPI_3
T LW [AR1,P#0.0]

L W#16#0 //LOADING 0 TO TEMP VARIABLES
T #_PO2_SetPoint
T #_PO3_Ramp
LAR1 P##_PO1_CtrlWord
T LW [AR1,P#0.0]