Siemens SICAM P 7KG7750 - Characteristics of RMS Value Recording

5
5.9 Memory Management
114 Power Meter SICAM P 7KG7750/55, Manual
E50417-B1076-C340-A6, Edition 09.2013
5.9.4.2 Characteristics of "RMS Value" Recording
• Any three measured quantities can be selected from the Table 3-1 with the exception of
energy values and counters.
Recording time
Recording time can be parameterized. The recording time to be saved in the allocated memory
(see chapter 5.9.1) is calculated according to the following formula:
• One sample of a measured quantity is saved each second.
• Pre-trigger history is always 30 % of the selected recording time.
3600*8
][
][
Byte
ByteemoryAllocatedM
ht
MAX
=
Note
• Since 30 % of the recording time is always allocated to pre-trigger history, the time for record-
ing the pre-trigger history must expire before a new recording can be triggered.
• The recording type "RMS Value" does not allow to record analog inputs (optional).