AMX TPI-PRO-4, Operation/Reference Manual

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Appendix
207 TPI-PRO/DVI (Total Presentation Interface)
Special Escape Sequences
The system has only a limited knowledge of URL formats in that it transparently passes the URL information
onto the server for translation. A user can then pass any parameters to the server side programs such as CGI
scripts or active server pages. However, the system will parse the URL looking for special escape codes.
When it finds an escape code it replaces that code with a particular piece of panel, button, or state information.
For example, " http://www.amx.com/img.asp?device=$DV " becomes
" http://www.amx.com/img.asp?device=10001 ".
Other used escape sequences include:
Escape Sequences
Sequence Panel Information
$DV Device Number
$SY System Number
$IP IP Address
$HN Host Name
$MC Mac Address
$ID Neuron ID
$PX X Resolution of current panel mode/file
$PY Y Resolution of current panel mode/file
$BX X Resolution of current button
$BY Y Resolution of current button
$BN Name of button
$ST Current state
$AC Address Code
$AP Address Port
$CC Channel Code
$CP Channel Port
$LC Level Code
$LP Level Port