L DINO
T #DI_NO

AN "SYSTEM_DB".C_START
JC M999

//Initialize PKW handling
L P#1400.0 // determination Base Address of ERR_CODENO
T DID 1300
L P#1440.0 // determination Base Address of STATUS
T DID 1304
L P#1480.0 // determination Base Address of FIFO_PR
T DID 1308
L P#1520.0 // determination Base Address of FIFO_UNPR
T DID 1312
L P#1560.0 // determination Base Address of SEND_DATA
T DID 1316
L P#1720.0 // determination Base Address of REC_DATA
T DID 1320
L P#1340.0 // determination Address of RATE_PR_UNPR
T DID 1324
L P#1360.0 // determination Address of ID_COUNT
T DID 1328
L P#1362.0 // determination Address of NUMB_PRIO
T DID 1332

L 0
T DIW 1360 // delete ID_COUNT

LAR1 P#1480.0 // delete FIFO_PR (all 20 Words)
L 20

这一个是FB230的程序与70通讯的。
以上这段程序P#1400.0 这个1400指的是什么？