
52/89 Device handbook A
PLUS
with / without LED display
,
157
679-19, 04/2016
7.9 Data logger
The data logger offers a periodical acquisition of measurement data, such as recording load profiles,
measurement fluctuations or meter readings as well as event triggered recordings of alarm states or
distubances. This storage medium used is an SD card, which allows almost unlimited recordings and an
easy exchanging on-site.
The following recording types are supported:
Logger
Triggered by…
Recording
Resettable
Power mean values
Interval t1
ON / OFF
YES
Configurable mean values quantities
Interval t2
ON / OFF
YES
Extreme values
Interval t3
ON / OFF
YES
Meter readings
Calendar based
ON / OFF
YES
Disturbance recorder
Event
ON / OFF
YES
Alarm / event list
Event
always active
NO
Operator list
Event
always active
NO
7.9.1 Activation of data logger recording
By configuring the different data loggers their state will not be changed. If it was active it remains active, if
it was inactive it remains inactive. The activation / deactivation of a specific logger may be performed via
PC software or via the
local programming menu
. Only via PC software, respectively by using the
corresponding commands via the configuration interface, contents of the individual logger can be reset.
Lists are exceptional, because they are always active to prevent manipulations. They record events in
endless mode and can’t be reset.
7.9.2 SD card
The device is supplied with a 2 GByte SD card, which allows long-term recodings. The device can be
equipped with all other SD cards available.
The red LED of the key located next to the SD card
signalizes that the logger is active. During writing to the
card the LED becomes dark for a short time.
To exchange an SD card the key must be pressed. As
soon as the red LED becomes dark, the SD card can
be removed and the new card inserted. Data can’t be
latched in the device. Therefore there is no recording
for the time no card is present in the device.
Status messages on LED display
Meaning
NO CARD
The logger is active, but no SD card has been inserted.
CARDLOCK
The SD card inserted is write-protected.
CRD_FULL
For at least one of the logger parts, which are not used in endless mode, the
assigned memory space is full. No more data can be recorded.
CARD_ERR
Faulty SD card. Possibly no more data will be recorded.