USE R M ANU AL
TOUCHSCREEN 2.1
26
SEPTTEMBER 12, 2017
Touch Display Troubleshooting
Screen Stuck at Start page
Display should always change to home page even if there is no communication.
You just need to give it some time. Wait at least a minute before disconnecting
and reconnecting wire again.
Use Serial Stat Information to Determine Communication Issue
From the TouchScreen display, select Advanced, Tools and then Serial Stats.
The Sent status counts up every time a message is sent from display to
Supervisaire board. Received counts up when a message is received from
Supervisaire board.
Sent and Received numbers should roughly be the same. If Received is 0, it
means no messages are returned at all. The cause can be misconfigured serial
port, faulty serial port or a wiring issue.
If messages are being received but you have a lot of lost messages (Received
much lower than Sent), this suggests a non-robust connection. Same thing if you
have a lot of fault messages, other stats not being 0 and having high numbers.
In unlikely event of non-robust connection, you can try changing baud rate and
timers:
•
Start with changing baud rate to a lower speed. For instance, 19200 or 9600.
You need to make the change both from TouchScreen Display and
Supervisaire board. See verify port configuration descriptions above for how
to access configuration pages.
•
On the TouchScreen you can also try changing the Response Timer and
make it a little bit longer.
•
For TouchScreen display, select Advanced, TouchScreen and then Serial
Interface.
•
You may need to verify and/or adjust certain parameters in the
system software via direct communication via Supervisaire control
board
–
you’d need special communication operator panel for that
(contact Dectron Service group for support).
Verify TouchScreen Port Configuration
Select Advanced, TouchScreen and then Serial Interface. Default configuration is
baud rate 57600 and response time 1000 ms. Ensure this has not been changed.
