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If the keyboard or touch panel were locked out before entering the Setup Screen, they will remain
locked while in the Communication Monitor. Exiting the Communication Monitor to the Setup
Screen will cause the keyboard or touch panel to be temporarily unlocked if either one was
locked.
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The Communication Monitor can be a powerful visual aid in configuring the TCS for data
communications. The following paragraphs present ideas on how to use this tool to best
advantage.
1.
An application program running on the host is supposed to set Polled Touch Mode then go
into a loop, polling the TCS every 1.5 seconds. However touch reports are never received by
the host. Use the Communication Monitor to see if the Read Touchkey Status command is
being received by the TCS.
2.
TCS XON/XOFF Mode is set to on, yet Buffer Overflow errors occur. Use the
Communication Monitor to verify that the TCS sends XOFF to the host.
3.
The TCS address is set for Multidrop operation (a value from 1 through 32). Use the
Communication Monitor to verify that the TCS is receiving the correct address sequence
<address> <ENQ> from the host. The TCS should respond by sending <address> <ACK>. If
the TCS does not respond, or responds by sending any other string, there may be a problem.
Check the Address setting in the Setup Screen.
4.
When the user presses the touch panel, the application program does not detect the touch.
Use the Communication Monitor to check that a touch report is sent by the TCS whenever
the touch panel is pressed. If not, check whether the application program has set Polled
Touch Mode or Touch Lockout Mode. If the TCS is sending a touch report, check to see
whether the reporting format of the report matches that expected by the application program.
5.
When the numeric keypad on the optional keyboard is used, the application program does not
respond. Use the Communication Monitor to ensure that the TCS is sending codes to the host
when a key on the numeric keypad is pressed. If not, check whether the application program
has set the Keyboard Lockout Mode. If the TCS is sending codes, check to see if the
application program is placing the numeric keypad into Application Mode rather than
Numeric Mode.
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