Change Default Network Port Number

The default TCP port number for .NET applications, Microsoft Excel, OPCSystems.NET OPC Server, and service to service communications is 58727 and 58724 for legacy OAS using WCF.  It can be changed to any dedicated port number you desire using the following methods.

Note: If you are unsure if you need to change the TCP port number it is advisable to leave the port number at the default of 58727, otherwise you will have to set all services and client components with the following methods.  If you are simply having trouble accessing remote communications over TCP port 58727 open for both inbound and outbound traffic TCP port in your firewall.  You can check the TCP port access with the steps in Remote OAS Service Access.

OAS Engine: Go to Configure-Options-Networking and set the TCP Port Number.

Service to Service: Go to Configure-Options-Remote Services and set the Client TCP Port Number.

WPF HMI .NET: OPCWPFDashboard.OPCWPFNetworkNodes.TCPPortNumber

WinForm HMI .NET: OPCControls.OPCControlsNetworkNodes.TCPPortNumber

.NET Data Connector: OPCSystemsDataConnector.OPCSystemsDataNetworkNodes.TCPPortNumber

Trend .NET: OPCTrendControl.TCPPortNumber

Alarm .NET: OPCAlarmControl.TCPPortNumber

Microsoft Excel: Use the OAS Excel Wizard application to create an RTD formula =RTD(“OPCExcel”,,,”Networking”,”TCP”,58727)

OPCSystems.NET OPC Server: Modify the file DANSrv.exe.config with Notepad to change <add key=”TCPPortNumber” value=”58727″/>