Submittal Sheet

7800 SERIES S7800A2142 KEYBOARD DISPLAY MODULE
32-00110—05 50
Annunciator Diagnostics
Diagnostic information about the annunciator can be viewed on the display module when an annunciator is connected in
the system (see Fig. 79). If an annunciator is not connected, this information is not accessible. The following information
is displayed:
• Annunciator status
• T4-T22 terminal status – “ON” or “OFF”
• Fault (“first out”) code
• Software revision
The assigned terminal names display for the T4-T22 terminals.
Fig. 79. Annunciator diagnostics
The up and down arrow buttons are used to scroll the status lines. The left arrow button is used to exit the page and return
back to the Home page.
Display Diagnostics
Diagnostic information about the display module can be viewed on a diagnostics page (see Fig. 80). The following
information is displayed:
• Manufacturing code (when the display was built)
• Display software version
• Internal temperature (inside the display)
• Supply voltage to the display
• Backlight power (percentage of power driving the backlight)
• Backlight feedback (current feedback from backlight)
• Heater status (percentage of power driving the LCD heater)
• Number of received Modbus packets
• Number of transmitted Modbus packets
Fig. 80. Display diagnostics