138 Gateway Path Unavailable (the Modbus/TCP gateway may be misconfigured)
139 Device Failed to Respond (the Modbus device may be off or disconnected)
140 Received invalid Modbus data checksum
141 Received response from unexpected device
142 Received unsolicited query, assume another Modbus master device is present.
143 Modbus device probe function received some good responses and some failures.
160 Start log (Entry in log file after AcquiSuite starts up)
161 Stop log (Entry in log file if AcquiSuite is shut down properly)
162 System time changed, caused logger to restart logging for intervals.
163 System auto-restart
164 Log entry corrupt.
165 Modbus device restart detected.
192 Modbus device does not match the device type in the configuration file.
193 Modbus device's serial number changed. (could be two devices with the same Modbus address)
Low/High Range Alarms:
This number is a hex representation showing which data points are out of range. 0x01 shows
data point 1 in alarm state. 0x04 shows data point 3 in alarm state.
Data Points:
Data points are shown in the same order as the modbus device configuration display in the modbus/device list
page. Data is displayed in floating point form. When a specific point is unavailable (4A4P-M broken wire alarm) or the point
is not supported as part of the configuration (phase B current on a single phase H8163 meter hookup) the point will be
logged as blank. This preserves the column structure of the file, and allows notation of invalid data. SQL databases often
accept blank or NULL as a valid entry in a data table to represent invalid data.
For data exported from the BMO website, the columns that are invalid (NULL) are reported as blank fields. This makes it
easier to import into MS Excel as blank cells. With the current firmware, the AcquiSuite will report blank fileds rather than
"NULL" to make direct import of data from the AcquiSuite easier, as well as reduce the file size. Developers intending to
use data files from the AcquiSuite should handle both the word "NULL" as well as a blank column as indications of an
invalid data point.
Log Storage Capacity
The AcquiSuite uses approximately 8 Mbytes of flash disk for log file storage. As data from the modbus meters is collected,
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
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A8810 AcquiSuite – Data Acquisition Server
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