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6
LCD Display
The front panel LCD displays the current alarm and control status and provides a command menu for controlling
the NetGuardian's basic functions.
Using the LCD command menu
The four buttons surrounding the front panel LCD are used to access the LCD Command Menu. To access the
menu, press the Menu button. To scroll the menu, use the q and p buttons. To select a menu command, press
the Sel (Select) button.
Standard Prompt
When no Command Menu item is selected and no alarms or relays are active, the LCD displays the firmware
version and the standard prompt, Press MENU for front panel options.
Controlling Display Speed
The scroll speed can be temporarily increased by pressing and holding the p button while the message is active.
6.1
Alarm and Control Status Messages
If an alarm or control relay is active, the LCD will display the following messages to indicate alarm and control
status. The LCD panel will display the following messages to indicate alarm and control status:
Discrete Alarms:
Relays:
Ping Alarms:
Analogs:
Analog thresholds are represented by the following characters:
Major Over:
a capital O
Minor Over:
a lower-case o
Minor Under:
a lower-case u
Major Under:
a capital U
NetGuardian Front Panel LCD
If there are any standing discrete alarms, the display will read "Discrete Alarms:",
followed by the user-defined descriptions of the standing alarm points.
If there are any latched relays, the display will read "Relays:", followed by the
user-defined descriptions of the latched relays.
If any ping targets have failed to respond within the specified time, the display will
read "Ping Alarms:", followed by the user-defined descriptions of the ping targets.
If any analog channels have crossed a threshold value, the display will read
"Analogs", followed by the user-defined description of the analog channel, the
channel's last voltage reading, and a letter indicating which threshold the channel
has crossed.
17
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