
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 55
NOTE: The M command will work regardless of when the last @n
command was used, even if you have left and re-entered the user interface in
the mean time.
4.1.4. Viewing All of The Logged Data Records
Option “*” in the Data Retrieval Menu shows all of the logged Data Records starting from the oldest and
continuing through to the most recently logged Data Record. Because viewing all logged data can
involve a huge amount of information, the type of communications interface to your ZENO
®
-3200 will
determine how the ZENO
®
-3200 sends that data.
52
4.1.5. Searching for Logged Data Records Based Upon Their Timestamps
There are two options in the Data Retrieval Menu that cause ZENOSOFT
®
to search through all logged
Data Records for Data Records that were logged at specified times. These options are the A and B
options.
OPTION A This option shows a specified number of Data Records AFTER a specified time.
For example, you may wish to examine the three Data Records logged after 3 p.m. Type A{ENTER} in
the Data Retrieval Menu. You will be prompted to enter the date and time of the earliest Data Record that
you wish to view. After you enter the date and time in the format “YY/MM/DD HH:MM:SS”, you will
then be prompted for the number of Data Records to be displayed. ZENOSOFT
®
will then search all of
the logged Data Records based upon these requirements. When it finds the first Data Record that meets
your criteria, it will display that Data Record plus any more consecutive Data Records that meet the
number of Data Records that you specified. If ZENOSOFT
®
cannot find any Data Records that meet
your criteria, it will simply respond with "EOF." If ZENOSOFT
®
finds the first Data Record, but there
are fewer consecutive Data Records than the number you specified, all of the found Data Record will be
displayed, followed by "EOF."
OPTION B This option shows all Data Records BETWEEN two different dates and times.
When you type B{ENTER} in the Data Retrieval Menu, you will be prompted to enter a date and time of
the earliest Data Record that you wish to view. After you enter the date and time in the format
“YY/MM/DD HH:MM:SS,” you will be prompted again to enter the date and time of the latest Data
Record that you want to view (using the same format as before). ZENOSOFT
®
will then search all of the
logged Data Records based upon these requirements. When it finds the first Data Record that meets your
criteria, it will search for the last Data Record that meets your criteria and display all the Data Records
from first to last that it finds. If ZENOSOFT
®
cannot find any Data Records meeting your criteria, it will
simply respond with "EOF."
The date & time format "YY/MM/DD HH:MM:SS" is defined as follows:
YY is the last two digits of the current year (valid from 1970 through 2037)
MM is the month (1 to 12)
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Refer to Section 4.1.1.
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