ST-72 User's Manual
Document: UM-1007
Revision Level A
50
2.7.5
SD CARD
A two gigabyte SD card comes standard with each ST-72. This SD card is not needed for
normal operation, but is useful for data logging and backing up configuration.
When the data logger is enabled, every ten minutes the Min, Max, Average, Alarm 1/2/3
status, Fault status, Calibration status, and Alarm reset for each active channel is written
to the SD card in one minute intervals. The log files are stored on the SD card by date.
Each day a new file is created and stored in a directory structure as follows:
UNIT_NAME\YEAR\MONTH\DAY.csv
. The files are comma delimited text files and
work with MS Excel, which can be used to create historical plots of the data.
The first line in the file contains a date stamp. The next line is the header. The header
shows the name of each column. The AVG fields in the header list the zero and span
values for that channel. The zero and span can be used when creating plots. Another
line exists for each minute of the day. Those lines are time stamped with the hour and
minute.
The numeric format of the MIN, MAX, and AVG values are based on channel settings.
The decimal precision is the same that is viewed from the unit. This can be adjusted
with the decimal points parameter in each channel’s Configure menu.
The SD Card can store more than 1 year of historical data, but backups of the card
should be performed on occasion. Backing up logs requires removing the SD card and
inserting it in a PC that has a card reader interface.
Logger Enabled
Save Config File
Load Config File
View Log File Trend
Card Status OK
YES
~
~
~
SD Card
Configure
Zone Names
Mimic Mode
SD Card
View Event Log
Clear Event Log
View Sensor Life
Version
~
~
~
~
~
~
~
v1.00
System
Figure 2-34
2.7.5.1 CARD STATUS
When the SD card is properly inserted into the card slot
CARD STATUS
will display
OK.
If the SD card is removed or becomes corrupt the green LED (Figure1-1) will blink
continuously and
CARD STATUS
will say
CARD NOT FOUND
.
Summary of Contents for ST-72
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Page 108: ...ST 72 User s Manual Document UM 1007 Revision Level A 102 Figure 6 4...
Page 128: ...ST 72 User s Manual Document UM 1007 Revision Level A 122 8 5 3 COPY CHANNELS Figure 8 7...
Page 129: ...ST 72 User s Manual Document UM 1007 Revision Level A 123 8 5 4 PROGRAMMABLE RELAYS Figure 8 8...
