Appendix
A.2 System alarms
OP 73micro, TP 177micro (WinCC flexible)
166
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0
Number Effect/cause
Remedy
230100 During navigation in the web browser, the system
returned a message which may be of interest to the
user.
The web browser continues to run but may not
(fully) show the new page.
Navigate to another page.
230200 The connection to the HTTP channel was
interrupted due to an error. This error is explained
in detail by another system alarm.
Data is no longer exchanged.
Check the network connection.
Check the server configuration.
230201 The connection to HTTP channel was established.
Data is exchanged.
-
230202 WININET.DLL has detected an error. This error
usually occurs when an attempt to connect to the
server fails or the server refuses to connect
because the client lacks the proper authorization.
An unknown server certificate may also be the
cause if the connection is encrypted by means of
SSL.
The alarm text provides details.
This text is always in the language of the Windows
installation because it is returned by the Windows
OS.
Process values are no longer exchanged.
Depending on the cause:
When an attempt to connect fails or a timeout error
occurs:
•
Check the network connection and the network.
•
Check the server address.
•
Check if the web server is actually running on the
destination computer.
Faulty authorization:
•
The configured user name and/or password do not
match those on the server. Establish consistency.
When the server certificate is rejected:
Certificate signed by an unknown CA ( ):
•
Either ignore this item in your project, or
•
Install a certificate that has been signed with a root
certificate known to the client computer.
The date of the certificate is invalid:
•
Either ignore this item in your project, or
•
Install a certificate with a valid date on the server.
Invalid CN (Common Name or Computer Name):
•
Either ignore this item in your project, or
•
Install a certificate with a name that corresponds to
that of the server address.
230203 Although a connection can be made to the server,
the HTTP server refuses to connect because
•
WinCC flexible Runtime is not running on the
server, or
•
the HTTP channel is not supported
(503 Service unavailable).
Other errors can only occur if the web server does
not support the HTTP channel. The language of the
alarm text depends on the web server.
Data is not exchanged.
Error 503 Service unavailable: Check if
WinCC flexible Runtime is running on the server
the HTTP channel is supported.
230301 An internal error has occurred. An English text
explains the error in more detail. This may be
caused by insufficient memory.
OCX does not work.
-
230302 The name of the remote server cannot be resolved.
The attempt to connect failed.
Check the configured server address.
Check if the DNS service is available on the network.
