Network Connections

The Network Connections area allows you to view and control network communications for this node.

Overview

To access the Network Connections:

  1. In the Navigation panel, select your iFIX node, project, and then Connections.
  2. Click Network. The following screen appears in the Connections panel.

Network Connections Details

The tables that follow describe the details that you can configure or view.

Table 1. Remote Nodes
Field Description
Project Node Displays the iFIX project node name.
Description Provides the description of the node.
Primary Node

Specifies the name of the primary node. The node name you enter cannot already be listed in the Configured Remote Nodes list box. You also cannot enter the name of a node that is already entered as a primary node.

Secondary Node Allows you to specify the name of the standby node. The node name you enter cannot already be listed in the Configured Remote Nodes list box. You also cannot enter the name of a node that is already entered as a standby node.
Failover Enabled

Describes whether iFIX Enhanced Failover is enabled.

The default is No.

Reset to Defaults button Allows you to reset the remote node network timers to their default values.
Use Network Timers

Allows you to enable the use of network timers on the remote node.

The default is Yes.

Keep Alive Allows you to specify the amount of time that, if no activity has occurred over an established connection, a View client waits before sending a heartbeat message. The default value for this field is 20 seconds.
Send Allows you to specify the amount of time that a View client waits for a request to the SCADA server to be acknowledged. If this timer expires, the session ends. The default value for this field is 30 seconds.
Receive Allows you to specify the amount of time that a View client waits for a reply from the SCADA server. When running iFIX over TCP/IP, the effective session timeout values is either the Send timer or the Receive timer, whichever is greater. If this timer expires, the session ends. The default value for this field is 60 seconds.
Inactivity Allows you to specify the amount of time that, if no data activity has occurred over an established connection, a View client waits before removing the dynamic connection from the list of outgoing connections. If this timer expires, the session ends. The default value for this field is 300 seconds.
Table 2. Options
Field Description
Resolve Dynamic Connections Allows you to establish dynamic connections on this node. Disable this option if you want to connect only to nodes configured in the Configured Remote Nodes list. This feature is not available if you are setting up a stand-alone node.

The default is Disabled.

Enforce Trusted Computing

Allows you to establish trusted computing on this node. Disable this option if you want to use legacy network computing. This feature is not available if you are setting up a stand-alone node.

When Trusted Computing is enabled, a valid password must be configured and confirmed before the changes will be saved.

The default is Disabled.

Set Up Network Password Allows you to set a password to create a site-specific certificate for network security. The default password (INETWORK) allows legacy network security to continue. This field is not available if you are setting up a stand-alone node.
Table 3. Timers
Field Description
Keep Alive Allows you to specify the amount of time that, if no activity has occurred over an established connection, a View client waits before sending a heartbeat message.
Range (10-129 seconds) The default value for this field is 20 seconds.
Send Allows you to specify the amount of time that a View client waits for a request to the SCADA server to be acknowledged. If this timer expires, the session ends.
Range (5-120 seconds) The default value for this field is 30 seconds.
Inactivity Allows you to specify the amount of time that, if no data activity has occurred over an established connection, a View client waits before removing the dynamic connection from the list of outgoing connections. If this timer expires, the session ends.
Range (50-32000 seconds) The default value for this field is 300 seconds.
Receive Allows you to specify the amount of time that a View client waits for a reply from the SCADA server. When running iFIX over TCP/IP, the effective session timeout values is either the Send timer or the Receive timer, whichever is greater. If this timer expires, the session ends.
Range (5-120 seconds) The default value for this field is 60 seconds.
Table 4. LAN Redundancy
Field Description
Reset to Defaults button Allows you to reset the network timers to their default values.
Enable LAN Redundancy

Allows you to enable the LAN redundancy feature on the node.

The default is Disabled.

Available Paths list Displays a list of available network paths, and their network status.
Table 5. Remote Access Restrictions
Field Description Default
Accept Unknown Host Select this option to allow the SCADA node to accept connections from any computer. When the parameter is disabled, access is restricted to the iClients (View) you specify. Disabled
Remote Viewers list The list of remote viewers that can Accept Unknown Hosts. None
Accept Unauthorized Writes Select this option to allow the SCADA node to log all unauthorized write attempts from the iClients. Disabled
Remote Viewers list The list of remote viewers that can Accept Unauthorized Writes. None
Log Unauthorized Writes Select this option to enable the logging of failed writes. Disabled