Siemens SITRANS LR500 Series - Showing Trend Log Data; Operating Hours Counter

Show trend log
1. Select the menu command "Diagnostics > Trend log".
2. Click on "Read".
– The number of available process values is displayed.
– The current number of logging points per process value that are already in the bu󹪜er is
displayed.
– The time stamp for the start time is displayed.
3. To show the 󹪝rst or second process value in the chart, enable the associated check box.
4. Click on "Read".
– The logging points in the bu󹪜er are read from the device and shown in the chart.
– The process values for pressure and sensor temperature are shown in di󹪜erent colors in
the chart.
When you click on "Reset", the bu󹪜er is deleted and trend logging starts again.
Note
T
rend logging via EDD and HMI
There are 100,000 points for trend logging, with the capability to log up to eight variables
simultaneously. To access trend logging see parameter Trend log settings (3.6) (Page139) and
EDD.
Operating hours counter
Oper
ating hours counter for transmitter electronics
• Monitors the number of operating hours during which the transmitter remained in
continuous operation.
• Starts with the 󹪝rst commissioning at the factory.
• The operating hours counter cannot be reset or adjusted.
Operating hours counter for sensor electronics
• Is only displayed when the measuring transducer electronics was replaced.
• Monitors the number of operating hours during which the sensor electronics remained in
continuous operation.
Procedure
1. Use remote operation (e.g. SIMATIC PDM) to select the menu command "Diagnostics >
Device status".
2. Select the "HART status" tab.
The operating time and, if available, the sensor operating time is displayed.
Operating
8.6Remote operation
SITRANS LR500 series with mA/HART
112 Operating Instructions, 03/2024, A5E51099898-AA