User's Manual

Page 88 SITRANS LR560 (PROFIBUS PA) – OPERATING INSTRUCTIONS 7ML19985LT01
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Parameters
4.4. Power-on Resets
Read only. The number of power cycles that have occurred since manufacture.
To view via SIMATIC PDM, open the menu Device – Wear.
4.5. LCD Backlight
Time the backlight remains on.
4.6. LCD Contrast
The factory setting is for optimum visibility at room temperature and in average light
conditions. Extremes of temperature will lessen the contrast.
Adjust the value to improve visibility in different temperatures and light conditions.
Change the value in small steps to ensure you can continue to read the display.
To access LCD Contrast via SIMATIC PDM:
Navigate to Level Meter > Setup > Local Display.
4.7. Remaining Device Lifetime
The device tracks itself based on operating hours and monitors its predicted lifetime.
You can modify the expected device lifetime, set up schedules for maintenance
reminders, and acknowledge them.
The maintenance warnings and alarms are communicated via the Status byte. This
information can be integrated into any Asset Management system. For optimal use,
we recommend that you use SIMATIC PCS7 Asset Management Software in
conjunction with SIMATIC PDM.
Options
Range: 0 (backlight off) to 128 seconds (backlight always on).
Default: 128 seconds
Values
Range: 0 to 20
Default: 8
Contrast setting will depend on ambient
temperature.
Notes:
• Default settings in the parameter tables are indicated with an asterisk (*) unless
explicitly stated.
• Four sets of parameters allow you to monitor the Device/Sensor Lifetimes and
set up Service/Calibration schedules, based on operating hours instead of a
calendar-based schedule. See also Remaining Sensor Lifetime (4.8.), Service
Schedule (4.9.), and Calibration Schedule (4.10.).
• Performing a reset to Factory Defaults will reset all the Maintenance Schedule
parameters to their factory defaults.
• The device operates in years. To view Remaining Device Lifetime parameters in
hours or days (via SIMATIC PDM only) see Lifetime Expected (4.7.1.).