Parker MSG17-4022-IB/UK, Instruction Book, Page: 31 / 54

Parker Pro Display 12 Instruction Book 31/54
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Ignition (keylock) signal controls Pro Display power supply. Software keeps power
supplies ON or forces it down. The principle of operating modes is seen in chart below:
System
Running
(power ON)
Shutdown
sequence
Ignition ON
and Vbatt OK
Wake up source ON
Application control
Power down
(power OFF)
Shutdown Request
Sleep
(power ON)
Internal under/overvoltage event
Internal under/overvoltage event
Internal
under/overvoltage event
Power up
sequence
Supplies OK
Figure 15: Pro Display operating modes
5.5.1. Sleep mode
Sleep mode is a standby-mode for the unit. Only certain module functions are in use
during sleep mode. These module functions allow wake-up to normal operating mode.
Return from sleep mode can be initiated by following actions/events:
• Ignition input ON
• Wake-up input
•
RTC timer expiration
5.6. Diagnostics
UXP software offers the functionality of implementing diagnostics in an application.
Applications can write and read information to/from a system log.
UXP data management alarms are logged into the system log in Pro Display. The
system log can be read with Maintenance App.