Memory Capacity - AEMC PEL102 User Manual

LED & COLOR STATUS
Green LED: ON/OFF
7
under
ON/OFF button
Green LED: Ethernet
8
embedded in
the connector
Yellow LED: Ethernet
9
embedded in
the connector

2.12 Memory capacity

The PEL accepts FAT32 formatted SDHC cards up to 32 GB in size. This much data can require a lot of demand on
a computer and a long download time (depending on the performance of the PC and connection type being used).
Furthermore, some computers may have problems handling such a large amount of data and spreadsheets can only
accept a limited amount of data.
We recommend managing the data on the SD card and only recording that which is needed. For reference purposes, a
30 day recording, with a 15 minute demand interval and recording 1 second data and harmonics on a 3-phase 4-wire
network would consume approximately 3.2 GB of storage space. If harmonics are not needed and the recording of them
is disabled, the space requirement is reduced to about 0.52 GB.
The recommended maximum recording times are:
■
one week when the recording includes the aggregated values, 1-second data, and harmonics
■
one month when the recording includes the aggregated values and 1-second data but not the harmonics
■
one year when the recording contains only the aggregated values
Also avoid exceeding 32 recorded sessions on the SD card.
NOTE: For recordings with harmonics or with a duration longer than one month, please use class 4 or higher SDHC cards.
We recommend not downloading large sessions through Bluetooth as it will take a very long time. If a Bluetooth download
is required, consider not recording 1 second trends and harmonics. The same 30 day recording would be reduced to just
2.5 MB.
Downloading over USB and Ethernet may be acceptable depending on the session size and network speed. We recom-
mend putting the SD card into your PC directly or with the external card reader for fastest download time.
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-
LED ON: External power supply present
-
LED OFF: No external power supply
-
LED OFF: No activity
-
LED blinking: Activity
- LED OFF: The stack failed to initialize or the Ethernet controller failed to initialize
-
Blink Slow, toggle every second: The stack initialized properly
-
Blink Fast, toggle 10 times per second: The Ethernet controller initialized properly
-
Blink Twice, toggle 2 times, then pause: DHCP Error
-
LED ON: Network initialized and ready for use
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www.
Table 3
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