116 • SMP Gateway User Manual
14.3 Connecting to the Device
Once you have configured the passthrough server and the SMP Connect application, you are ready
to establish a passthrough connection to the device:
In SMP Connect, select the device in the device list.
In the Control menu, select Connect to IED.
In the IED Application Selection dialog box, choose the application /NVT that will
communicate with the device.
Click the Connect button.
If you requested that the application be started manually, the trace window will show that
SMP Connect has established the SMP Gateway passthrough connection and has started the
loopback connection with the application, but the application window will not open. Start the
application now.
You are now ready to use the application the same way you would if you were connected to it
locally.
14.4 Testing the Passthrough Connection
Setting up a passthrough connection is usually a straightforward operation. When problems occur,
it is often because a device cannot communicate and perform data acquisition simultaneously.
You may find the following guidelines useful in identifying and solving problems with
passthrough connections:
Using SMP Config, check the Suspend IED setting for the selected passthrough connection.
If you modifed the setting, remember to load the modified configuration and restart the
SMP Gateway.
Using SMP Connect, check the message pane to see if the passthrough connection is being
activated correctly.
Using SMP Trace, open the Master Protocols folder, and check whether the component is
receiving requests from the control center.
Using SMP Trace, open the PassThruServer folder, and check whether any data is being
exchanged with the device.
Using SMP Trace, open the Connections folder, and check whether any data is being
exchanged with the device.
14.5 Deactivating the Passthrough Connection
To deactivate the passthrough connection:
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