Application sample - Service interface with remote desktop

Configuration at the TwinCAT master PC

• Start the TwinCAT System Manager in Config mode, read the Bus Terminal configuration, and activate free-run mode
• The EL6601 should appear in the system configuration being in OP mode (see Online tab EtherCAT Status Machine)

Fig.135: EL6601 in the configuration

• In analogy to the configuration of a network printer the IP number of the EtherCAT network port of the TwinCAT Master-PC in the subnet is e.g. 192.168.0.1
• Open the Control Panel of the TwinCAT master PC and click on Security Center -> Windows Firewall

Fig.146: Selection of “Security Center” in the View Control Panel Category

Fig.147: Choose security settings for Windows Firewall

• If the Windows firewall is activated click on tab Exceptions
• Select Remote Desktop and confirm with OK

Fig.148: At the “Exceptions” Tab activate the “Remote desktop” service

• Return to the Control Panel of TwinCAT master PC and select Performance and Maintenance -> System

Fig.149: Select “Service and Maintenance” from “System” in the View Control Panel

• Click on the Remote tab, and in the Remote Desktop category select the option Allow users to establish a remote desktop connection

Fig.150: Check “Allow users to establish a remote desktop connection”

• Open the list of remote desktop users via the button Select remote users... and add additional users if required
• Confirm with OK.

Fig.151: Adding remote desktop users

Configuration at the service PC

For a remote desktop connection with the TwinCAT master PC via the EL6601 the network address of the service PC has to be set according to the IP number range of the TwinCAT master PC subnet.

• Connect the Ethernet port of the service PC with the EL6601 via a CAT-5 (1:1) cable
• In the Control Panel of the Service-PC check the Ethernet network adapter, via which the EtherCAT system is operated:
  Network Connections [Properties] -> Local Area Connection (Ethernet LAN adapter), [Properties]-> Internet Protocol (TCP/IP) [Properties]

Fig.136: Context Menu Network Environment -> “Properties”

Fig.153: Context Menu “LAN Connection (Ethernet-LAN-Adapter),” -> “Properties”

Fig.138: Properties Internet Protocol (TCP/IP)

• Enter an IP address for the subnet of the network printer (e.g. 192.168.0.38/255.255.255.0) and confirm with OK

Fig.155: Entry of the IP address of the subnetwork of the Service-PC

• The Ethernet connection to the TwinCAT master PC is now tunneled via the EL6601 through the EtherCAT terminal network and can be established via the remote desktop.

Establishing the remote desktop connection

• On the service PC start the remote desktop connection via Start -> Programs -> Accessories -> Communication -> Remote desktop connection

Fig.156: Start remote desktop connection

• Enter the IP address of the TwinCAT master PC (e.g. 192.168.0.1) and click Connect

Fig.157: Entry of the IP address of the Remote-PC

• The login window of the TwinCAT master PC appears on the desktop of the service PC
• Enter your user name and password for the TwinCAT master PC and confirm with OK
  The IP address of the TwinCAT master PC is shown above the remote desktop

Fig.158: Login window of the remote PC via the remote desktop connection

• NOTICE
• The TwinCAT system can now be remotely controlled via the service PC.
  To log out close the remote desktop window.

Fig.159: Closing the remote desktop connection

Access to the remote system When controlling the TwinCAT master PC via a remote desktop TwinCAT must be executed in Run mode or Config mode (free run). If the task is interrupted the service PC can no longer access the remote system!