it is appended to log files on this flash chip. Once a day (at the first call-out period for uploading data) the log files are
"rotated". This action renames each log file and compresses the old file using gzip. The net result is a smaller file for storage
or modem/ethernet transfer.
Because the files are compressed, the actual size of the data on the flash chip will vary depending on the data itself. For
example, if a device is reporting 25KWh, it will use fewer bytes than a log entry that has 9,999,999KWh.
We have measured a typical installation with 5 H8036 power meters and 5 A8923 IO modules, and determined the system
will run for well over a hundred days with a 15 minute log cycle. Changing the number of meters, the type of log data, or the
log cycle period will affect your results accordingly. Please read Technote “TN-03” at obvius.com for more information
about log file storage capacity.
When the AcquiSuite storage area on the flash starts to run out of space, the following action is taken:
● When the 8 Mbyte log file storage area is 75% full, the AcquiSuite will immediately compress the log files and
attempt to upload the data to the BMO website or user specified site. This action will not wait until the next
scheduled upload time.
● When the storage area is 95% full, the AcquiSuite will immediately attempt to upload the data, and if unsuccessful,
will purge the oldest (rotated) log data file.
Log files are deleted automatically if the AcquiSuite has successfully uploaded the log file to a database server using the
HTTP/Post protocol. If you do not configure the AcquiSuite to automatically push the log files to your server, you must
manually delete them. To delete log files, refer to the FTP method of downloading log files. One step detailed in the FTP
section is how to delete a log file from the AcquiSuite.
Uploading data to the BMO website.
After the AcquiSuite has been configured and has logged some data, you will want to collect the data for analysis. There are
several ways of collecting the data from the AcquiSuite including the Building Manager Online service. Other methods are
noted in the data collection FAQ. This section details configuring the AcquiSuite for use with the BMO service.
Step 1: First, use your browser to connect to the AcquiSuite. Select the Modbus/Setup section from the menu on the left. In
the field titled "Modbus Loop Name" enter a name for this AcquiSuite to uniquely identify it on the BMO website. Because
the BMO site can show multiple AcquiSuite devices, it is important to have a descriptive name in this field.
Step 2: Select the “Log File Data”, “Setup/Upload” menu option. The following features are available:
● AcquiSuite Serial Number: This is the serial number that uniquely identifies this AcquiSuite. This number can not
be changed. When uploading data to the BMO website, this serial number is used to identify the AcquiSuite to the
BMO server.
● Scheduled upload time: This option allows you to control when the AcquiSuite will initiate the upload process.
You can select any hour of the day, and the AcquiSuite will select some time at random within that hour to start the
upload. The random feature allows multiple AcquiSuite devices to share a single dialup account or phone line by
not starting the dialout at the same time for all devices. If the AcquiSuite is on a LAN connection (DSL, Cable
Modem, T1, etc) an upload time of "hourly" may be selected.
● Upload data on alarm status change will cause the AcquiSuite to initiate the upload process if any point on any
modbus device enters or leaves an alarm state. This allows the AcquiSuite to send data when an alarm is detected,
and will upload that information to the BMO website in a timely manner. The BMO website will then send email
notifications if necessary. If this option is disabled, the BMO website may not be able to send notifications until the
end of the day when the AcquiSuite calls in at its specified upload time.
● Upload data on low disk alarm: This feature will cause the AcquiSuite to attempt a data upload immediately if the
log file storage area is more than 75% full.
● Allow remote modbus device configuration: If enabled, users may remotely configure alarms and other modbus
device features on the BMO website. When the AcquiSuite uploads data to the BMO website, it will also download
any new configuration information as needed. Note: if configuration changes are made to the AcquiSuite, those
changes will be uploaded to the BMO site. If configuration changes are made at both the AcquiSuite and the BMO
website, the most recent changes will be used.
● Target Address to upload data: This is the website URL to upload data to. This should always be set to
"http://www.buildingmanageronline.com/upload.php" unless you are configuring the AcquiSuite to send data to
your own internal database server. (see the Data Collection FAQ at obvius.com )
● Password to upload data: This password is used by the BMO webserver to verify the AcquiSuite device
authentication before accepting the uploaded data. You should select a password other than the default, and make
note of it for future reference.
Page 35 A8812 AcquiSuite – Data Acquisition Server
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