ALERT EXTENSION FACILITY
When an alert condition occurs, it may be necessary to provide some more 
information than what is contained in the alert message line. Typically, you may want 
to explain to the user the cause of the alert condition, the actions required, or any 
precautions that should be taken.

You may associate a text file with each variable. When that variable is in the alert 
condition and is selected (see SELECTING AN ALERT LINE), pressing [Alt-X]
causes one page (15 lines) to be displayed. Pressing any key in a multiple page alert 
extension file allows you to display the next page. Pressing  returns you to 
exactly where you were. In a single page display, pressing any key returns you to 
exactly where you were.

In addition to the [Alt-X] function key the AEX command also recalls the alert 
extension file for the selected variable, but allows more flexibility.

AEX[cr]

recalls the file associated with the alert on the currently selected line, or with the alert 
displayed at the bottom of the screen if there is no line selected.

AEX name[cr]

displays the alert extension file associated with the alert variable 'name' (name.AEX).


AEX line[cr]

'line' is a constant from 4 to 21. This command format displays the alert extension file 
associated with the alert on the specified line.

AEX @reg[cr]

'reg' is the name of a RTES register. This command format displays the alert 
extension file associated with the alert displayed at the line number specified by the 
value of 'reg'.

Once an alert extension file is displayed, there is a difference between a short file 
that only occupies one screen and a longer file.

For a short file, pressing any key returns you to the previous page.

For a long file, you must press the  key to return to the previous display, any 
other key displays the next page of the file. If you reach the last page, then pressing 
any key returns you to the previous screen.

If you are using the mouse to control the screen via EXEC statements, then the AEX 
command gets you to the next page of the file (if any). The HOME command returns 
you to the previous screen.


Access Level:1