Operating instructions

Appendix
A.2 System alarms
MP 377, MP 377 PRO (WinCC flexible)
308 Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
Number Effect/causes Remedy
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 whether the WebServer is actually running
on the destination station.
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 Webserver does not
support the HTTP channel. The language of the alarm
text depends on the Webserver.
Data is not exchanged.
Error 503 Service unavailable:
Check that WinCC flexible Runtime is running on the
server and 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 whether the DNS service is available on the
network.
230303 The remote server is not running on the addressed
computer.
Wrong server address.
The attempt to connect failed
Check the configured server address.
Check whether the remote server is running on the
target computer.
230304 The remote server on the addressed computer is
incompatible with VNCOCX.
The attempt to connect failed.
Use a compatible remote server.
230305 The authentication has failed because the password
is incorrect.
The attempt to connect failed.
Configure the correct password.