OpcDaUsernameandPassword

Opc Da 用户名和密码

代码示例：

1. 在OPC DA服务器上设置用户名和密码：

Dim server As New OPCServer
server.Connect("RSLinx OPC Server")
server.OPCGroups.DefaultGroup.OPCServerSecurity.UserName = "myUsername"
server.OPCGroups.DefaultGroup.OPCServerSecurity.Password = "myPassword"

2. 在OPC DA客户端中使用用户名和密码连接到服务器：

Dim serverUrl = "opcda://myRemoteServer"
Dim credentials = New NetworkCredential("myUsername", "myPassword")
Dim server As New Opc.Da.Server(New OpcCom.Factory(), New OpcCom.Server(serverUrl, credentials))
server.Connect()

string serverUrl = "opcda://myRemoteServer";
NetworkCredential credentials = new NetworkCredential("myUsername", "myPassword");
Opc.Da.Server server = new Opc.Da.Server(new OpcCom.Factory(), new OpcCom.Server(serverUrl, credentials));
server.Connect();