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Troubleshooting List
Fault Description
An error message appears (e.g. Modem
not initialized, etc.) a PPP connection is
established with the BDA.
Nothing happens after you select the
language on the first page.
You cannot establish a connection to the
BDA Plus via the Ethernet.
The system displays a message about
security settings and the BDA pages
stop loading.
Table 4-3
This troubleshooting list helps you solve any problems you may encounter communicating with the BDA. If you have any other problems,
Technical Assistance at 1-800-964-4114 will be happy to help.
WL PROFIBUS Communication and Electronic Accessories • July 2004
Breaker Data Adapter (BDA)
Solution
Ensure that you are using a fully-assigned null modem cable.
With a null modem cable, pins 2 and 3, 4 and 6, and 7 and 8
must be assigned and reversed with respect to each other.
Before starting the BDA, disconnect the null modem cable from
the BDA and reboot the BDA (DEVICE LED is green). Then reconnect
the cable.
The COM port that you are using on the target system must not be
used by a different application.
Check the modem and data communications connection settings. You
must choose "555". Only the user name "ppp" works.
In the Control Panel, you also have to set the baud rate for the COM
interface that you are using to 115200.
Ensure that the option "Use Java v1.4.0 <applet>" is active
in the browser.
Delete the cache memory of the browser.
Open the Java plug-in operator panel in the Control Panel. Check that
the plug-in is active and Version 1.4.0 is selected under "Extended."
On the "Browser" tab page, the browser that you are using must be
active, and the Java VM cache can be deleted.
Then restart the system.
If the problem persists, remove any older versions of Java you
may have.
Check the settings for the gateway, the subnet mask, and the proxy.
Enter the address of the BDA to be addressed in the proxy so that
it is not routed via the proxy. This only works if the BDA is located
in the network specified by the subnet mask.
Ping the BDA address to check whether TCP/IP communication is
established to the BDA. If the ping does not work, check the network
configuration again with your network administrator. If the BDA replies
to a ping but not to a request to call up the browser, reset the BDA.
The BDA must have already been booted with a connected Ethernet
cable so that the Ethernet interface is activated. To solve the problem,
connect the active Ethernet cable and boot up the BDA.
The security level of the browser is set to "Secure" and stops Java
applets from running, for example. For this reason, you have to reduce
the security level to a level where the security message no longer
appears and the BDA pages are displayed.
WL Circuit Breaker
4/26
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