OB1
NETWORK1
----------------------------------------------------
LD SM0.1 //首次扫描
MOVB 2, SMB30 //允许PPI协议
FILL +0, VW200, 68 //清空所有数据区
NETWORK2
----------------------------------------------------
LD SM0.0 //总是1
CALL SBR_0 //调用子程序0
CALL SBR_1 //调用子程序1
CALL SBR_2 //调用子程序2
CALL SBR_3 //调用子程序3
CALL SBR_4 //调用子程序4
CALL SBR_5 //调用子程序5
CALL SBR_6 //调用子程序6
CALL SBR_7 //调用子程序7