发布于 2011-08-23 23:10:07
2楼
PLC1的IB0控制PLC3的QB0,PLC2的IB0控制PLC3的QB1PLC1:LDSM0.1MOVB9,SMB30MOVB1,VB100LDSM4.5MOVBIB0,VB101XMTVB100,0PLC2:LDSM0.1MOVB9,SMB30MOVB1,VB100LDSM4.5MOVBIB0,VB101XMTVB100,0PLC3:LDSM0.1MOVB9,SMB30ATCHINT_0:INT0,8ATCHINT_1:INT1,25ENIINT_0:LDSM0.0MOVBSMB2,QB0INT_1:LDSM0.0MOVBSMB2,QB1不过还是建议用RCV,用SMB2,那么中断太多。