Crestron electronic TPMC-8T - Manual (Page 58)

Isys i/O™ 8.4” TableTop WiFi Touchpanel Crestron TPMC-8T
Internet Explorer, we must keep the logic synchronized. If we do not, the toggle will
get out of sync. Similarly, using the reserved join to launch the embedded application
would result in the application being open, but the state of the toggle remaining low,
so a one-shot is used to set the state of the toggle if the embedded application is
opened in this way.
For example, the user presses button #10 and the output of the toggle
(<Open/Close_IE_FB>) is high. If the user presses the "X" on IE, IE closes. The
next time they touch button #10, <Open/Close_IE_FB> will go low, which tries to
close the application. However, the application is already closed. We need to reset
the state of the toggle to keep in sync with the actual state of the application.
The “Press” signal of the Open Close State Digital Join can be used to know the true
state of the application. When Press11 goes high, in this example, IE is open. When
Press11 goes low, IE is closed. Here, we use the falling edge of Press11 through a
One-Shot to reset the state of the Toggle symbol. Now the toggle is properly
synchronized if the user closes the application from the panel itself.
Example Program
An example program for the TPMC-8T is available from the Crestron website
(
www.crestron.com/exampleprograms ).
54 • Isys i/O™ 8.4” TableTop WiFi Touchpanel: TPMC-8T Operations Guide – DOC. 6567C