simatic net's configuration of VB6 and s7-300?

[srain]

hi,I'm using vb6 on PC and 315-2dp with cp343-1 lean ,OPC is simatic Net ,now i can use scout to get data of 315-2dp, but a program of vb6 can't connect OPCserver on PC which i installed simatic net, when I copied this program to another PC which someone installed simatic net ,it worked ,why ? who knows?

 

[srain]

oh,it's my fault !
i changed the value "OPC.SimaticNet" of VB code to my PC's name ,it's a mistake,the format is

OPCServer.Connect ("OPC.SimaticNet", "Nodename")

nodename is the pc's name or IP(i'm not test it now),and if the opc is local,the "nodename" can be omitted.