Endress+Hauser Proline Promag 300, Описание параметров устройства

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Description of device parameters Proline Promag 300 Modbus RS485
194 Hauser
Additional information Description
This defines the interval between the individual data points in the data log, and thus the
maximum loggable process time T
log
:
• If 1 logging channel is used: T
log
= 1000 × t
log
• If 2 logging channels are used: T
log
= 500 × t
log
• If 3 logging channels are used: T
log
= 333 × t
log
• If 4 logging channels are used: T
log
= 250 × t
log
Once this time elapses, the oldest data points in the data log are cyclically overwritten such
that a time of T
log
always remains in the memory (ring memory principle).
The log contents are cleared if the length of the logging interval is changed.
Example
If 1 logging channel is used:
• T
log
= 1000 × 1 s = 1 000 s ≈15 min
• T
log
= 1000 × 10 s = 10 000 s ≈ 3 h
• T
log
= 1000 × 80 s = 80 000 s ≈ 1 d
• T
log
= 1000 × 3 600 s = 3 600 000 s ≈ 41 d
Clear logging 
Navigation  Expert → Diagnostics → Data logging → Clear logging (0855)
Prerequisite The Extended HistoROM application package is available.
The software options currently enabled are displayed in the SW option overv.
parameter (→  43).
Description Use this function to clear the entire logging data.
Selection • Cancel
• Clear data
Factory setting Cancel
Additional information Selection
• Cancel
The data is not cleared. All the data is retained.
• Clear data
The logging data is cleared. The logging process starts from the beginning.
Data logging 
Navigation  Expert → Diagnostics → Data logging → Data logging (0860)
Description Use this function to select the data logging method.
Selection • Overwriting
• Not overwriting