Connecting a Two-position Switch to the Digital I/O Port
+5.0 V
1k ohms
SW 2
SW 1
Two-position
Switch
Digital
I/O
GND
Voltage
Protection
CTL
Figure 25.
Connecting a Two-position Switch to the Digital I/O Port
Port Configured
— Input with pullup (switch 1 open, switch 2 closed)
Two Position Switch Open
— Digital input reads +5 VDC = Logic High
Two Position Switch Closed
— Digital Input reads 0 VDC = Logic Low
Reset Modes
The touchpanels described in this guide have three reset modes that are initiated by pressing the
Reset
button. An additional (fourth) mode toggles between enabling and disabling the DHCP
client:
•
•
•
•
Enable or Disable the DHCP Client
(see page 33)
The
Reset
button is found on the rear panel of the TLP Pro 525M, 725M, and 1025M series
B
, on page 8) or the base of the TLP Pro 525T, 725T, or 1025T series (see
B
, on page 12).
Use Factory Firmware
This mode is used to boot up the unit with factory-installed firmware for a single power cycle if a
firmware update fails or incompatibility issues arise with user-loaded firmware.
Activation
To start the
Use
Factory
Firmware
reset mode and replace firmware:
1.
Remove power from the touchpanel.
2.
On the touchpanel, hold down the recessed
Reset
B
) while
re-applying power to the unit. When power is restored, the
Reset
LED lights. Hold the
Reset
button for a further 2 seconds before releasing it. The touchpanel enters factory
firmware mode.
3.
Upload new firmware to the unit as desired (see
NOTE:
Do not continue to operate the touchpanel using the factory firmware version. If
you want to use the factory default firmware, you must upload that version again (see
).
TLP Pro 525, 725, and 1025 Series Touchpanels • Reference Material
31
