W&T 57630, Руководство пользователя

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W&T
Controlling the Web-IO with TCP/UDP Sockets
Subject to errors and modifications:
5.5.3 Program-controlled error management
If the Web-IO detects one or more errors while processing its
tasks, these are saved and are viewable from the navigation tree
under
Diag .
A more detailed description of this can be found in Section 6.6
Diagnostics and Testing.
In some applications it may be desired that error management
is handled not manually by viewing a Web page, but rather
errors are automatically evaluated in a program.
For such cases the Web-IO provides several command strings
for using TCP or UDP.
Creating a list pf possible error messages
The Web-IO can manage a maximum of 64 different error types.
The actual number may vary within this limit depending on the
firmware version.
To get an overview of the possible errors, the command
GET /diaglistx?PW=password&
can be sent to the Web-IO.
x is replaced by a value between 0 and 64. INstead of password
enter the Administrator or Operator password.
The Web-IO replies with the corresponding error message.
diaglistx;errortext
Example:
If the application sends (Passwort = „wut“) to the Web-IO
GET /diaglist2?PW=wut&