smb30，smb87等自己赋值

MAIN:开机250MS后执行中断0
LD SM0.1
MOVB 250, SMB34
ATCH INT_0:INT0, 10
ENI

INT_0: 发送1
LD SM0.0
DTCH 10
ATCH INT_1:INT1, 9
XMT VB100, 0

INT_1: 发送2
LD SM0.0
ATCH INT_2:INT2, 9
XMT VB200, 0

INT_2: 发送3
LD SM0.0
ATCH INT_3:INT3, 9
XMT VB300, 0


INT_3: 发送4
LD SM0.0
ATCH INT_4:INT4, 9
XMT VB400, 0

INT_4: 发送5
LD SM0.0
ATCH INT_5:INT5, 9
XMT VB500, 0

INT_5: 发送6
LD SM0.0
ATCH INT_6:INT6, 9
XMT VB600, 0

INT_6: 接收
LD SM0.0
RCV VB2000, 0

中断6里可以根据需要再连接定时中断执行发送或者强制关闭RCV等