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14 LOG FILE DATA
When the EMB Hub storage area on the flash starts to run out of space, the following action is taken:
•
When the 8 MB log file storage area is 75% full, the EMB Hub 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 EMB Hub 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 EMB Hub has successfully uploaded the log file to a database
server using the HTTP/Post protocol. If you do not configure the EMB Hub 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 EMB Hub.
14.4 Uploading data to the BMO website
After the EMB Hub 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 EMB Hub including the Building Manager
Online service. Other methods are noted in the data collection FAQ. This section details configuring the
EMB Hub for use with the BMO service.
14.4.1
First, use your browser to connect to the EMB Hub . Select the Modbus/Setup section from
the menu on the left. In the field titled “Modbus Loop Name” enter a name for this EMB Hub to
uniquely identify it on the BMO website. Because the BMO site can show multiple EMB Hub
devices, it is important to have a descriptive name in this field.
14.4.2
Select the “Log File Data”, “Setup/Upload” menu option. The following features are available:
•
EMB Hub Serial Number:
This is the serial number that uniquely identifies this EMB Hub.
This number can not be changed. When uploading data to the BMO website, this serial
number is used to identify the EMB Hub to the BMO server.
•
Scheduled upload time:
This option allows you to control when the EMB Hub will initiate
the upload process. You can select any hour of the day, and the EMB Hub will select some
time at random within that hour to start the upload. The random feature allows multiple EMB
Hub devices to share a single dial up account or phone line by not starting the dial out at the
same time for all devices. If the EMB Hub 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 EMB Hub to initiate the upload process
if any point on any modbus device enters or leaves an alarm state. This allows the EMB Hub
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 EMB Hub calls in at its specified upload time.
•
Upload data on low disk alarm
: This feature will cause the EMB Hub to attempt a data
upload immediately if the log file storage area is more than 75% full.
WEB
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