You can use the Network tab on the WITS Outstation Form to specify the TCP/IP Type for each network connection. The protocol can be:
- TCP (Transmission Control Protocol)
- UDP (User Datagram Protocol).
NOTE: The TCP/IP Type for a WITS Outstation item has to match the TCP/IP Type of the DNP3 Channel(s) used to communicate with the Field Device. For more details on the TCP/IP Type setting for a Channel, see Configure a Channel's Network Connection Properties in the ClearSCADA Guide to Drivers.
The Network tab has TCP/IP Type settings for outbound connections (ClearSCADA to Field Device) and inbound connections (Field Device to ClearSCADA).
- For outbound connections, the TCP/IP Type is the protocol that the Field Device uses when listening for connections from ClearSCADA. There is one TCP/IP Type setting for single network connections, and two TCP/IP Type settings for dual networks (one for Network A, one for Network B).
- For inbound connections, the TCP/IP Type is the protocol that the Field Device uses to initiate connections to ClearSCADA. There is a TCP/IP Type setting for each inbound connection (up to a maximum of ten).
Typically, you would set the TCP/IP Type during the initial configuration of the Outstation item to match the communications configuration of the Field Device. It is unlikely that you would then make any further changes to the TCP/IP Type in ClearSCADA.
If you change the TCP/IP Type in ClearSCADA and then download the configuration, communications will be lost. To restore communications, you need to:
- Re-configure the TCP/IP Type of the other Outstations that use the same Channel(s).
- Re-configure the Channel(s) to have a TCP/IP Type that matches that of the Outstations.
ATTENTION: Take care when altering the TCP/IP Type of a Channel. Changing the communications protocol for a Channel will result in loss of communications to any Outstation that uses a different protocol.
Further Information
Configure a WITS Field Device to Initiate Only
Configure a WITS Field Device to Listen Only
Configure a WITS Field Device to Listen and Initiate via the Same Connection
Configure a WITS Field Device to Listen and Initiate via Separate Connections.