PC机和 OMRON PLC 在Host Link 下的C-Mode模式通信程序，指令校验码FCS 计算。附带 C-Mode指令格式文件-Comuunication between PC and OMRON PLC. Under Host Link . C-Mode order. FCS comupte. Has added instruction of C-Mode Order

这是VB和欧姆龙通讯源码经典的例子, Lettura_Dm = False ricez_ok = -1: timeout = False trasm = "@00RD" trasm = trasm + Right$(Str$(10000 + dm!), 4) trasm = trasm + "0001" trasm = trasm + bcc(trasm) + Chr$(42) + Chr$(13) Omron!Comm1.Output