prodave.vbw

VB和西门子s300plc串口通讯程序 能实现读写功能

DEMO_FRM = 44, 58, 635, 506, , 22, 29, 613, 477, C
REFER = 66, 87, 657, 535, C
LOAD_FRM = 66, 87, 665, 543, C, 88, 116, 679, 564, C
READ_FRM = 110, 145, 709, 601, Z, 110, 145, 701, 593, C
WRITE_FRM = 132, 174, 723, 596, , 132, 174, 723, 622, C
ABOUT_FRM = 88, 116, 687, 572, , 154, 203, 745, 651, C
INFO_FRM = 74, 250, 665, 698, C, 44, 58, 635, 506, C
GPARA = 154, 203, 745, 651, C
ERROR_FRM = 44, 58, 635, 506, , 22, 29, 613, 477, C