W&T 57630 Manual page 89

W&T
Controlling the Web-IO with TCP/UDP Sockets
In case of overload the affected output is completely turned off
an must be enabled again by the user.
See also Section 6.6 Diagnostics and Testing.
To automatically process overload errors from the application
program, it is possible to define a corresponding alarm which
sends an error message to the program when a TCP connection
is open.
Select Config >> Device >> Alarm >> Alarm1
Activate Load Control under System Trigger.
Enter E as an interval (= one-time).
Under Enable check
and click on Intermediate Storage.
Once all entries pertaining to the alarm have been made,
a c t i v a t e t h e n e w s e t t i n g s u n d e r C o n f i g > > S e s s i o n
Control >> LogOut, Save.
Now if an overload condition arises, the Web-IO sends the
following to the application over the open TCP connection:
Subject to errors and modifications: 89