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A8814  Acq 

 

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calculating demand values based on consumption. 

5)

 

Converting Local time to any other timezone usually involves converting it to UTC first. 

Using UTC time solves these problems elegantly.   The best practice is to store data in the database in UTC format 
and then convert the information when generating a report for the user.   

For example, if you wish to draw a graph of KW over Time, prompt the user for a date range, say Jan 1 midnight  
to Jan 2 midnight.  Take the user specified end points and convert these times from Local time to UTC.  Next, 
create an SQL query using the new UTC formatted data as your select statement. ie: 

 

SELECT * from TABLE where time > '2003-01-01 08:00:00' and time < '2003-01-02 08:00:00' 

Note the time is 8 hours ahead of local time. This example is for Pacific which is 8 hours off from UTC. This will 
return a list of data points between the two specified time ranges.  Next, plot the data on a graph, using the UTC 
times for start and end points.  Lastly, when drawing the 'time' legend on the graph, convert the values back to 
Local time before displaying. Ie, 2003-01-01 00:00:00 to 2003-01-02 00:00:00.  Any division lines on the time axis 
can be handled the same way.  The advantage of using this technique is that it will properly draw a graph across 
DST change boundaries.  The graph axis is based on UTC time with no DST, and will not show a gap or overlap a 
the time of the change.  The axis labeling will be correct as well, matching the UTC times precisely.   

Another way to handle the conversion is to query and convert all the returned timestamps to local time before 
drawing the graph.  This is useful if you do not have detailed control over the graph legend drawing process. This 
technique will not properly graph across DST changes as the graph is based on local time including DST changes. 

System logs 

The AcquiSuite can keep several log files that report the general operation of the system, not related to the 
normal data logs. These include the following: 

Debug Messages:

 The AcquiSuite can run a “syslog” process to record more detailed information about its 

operations, however this log consumes vast quantities of memory quickly, and is disabled by default.  Click the 
“start log” button to enable the feature.  Click the “end log” button to disable.  Note: when the AcquiSuite is 
rebooted, the debug log will be disabled on startup. 

Kernel Boot log

:  Startup messages about the Linux operating system startup.  This log shows what hardware 

items were detected and initialized. 

Ftp Connection log: 

This log shows a list of files transferred by FTP on the AcquiSuite.   

Last Data Upload log

: This log file contains a report from the last data upload attempt to remote 

database/webservers such as BMO.  This log will show if any log files are being rejected by the 
dabase/webserver, or if the network is not allowing a connection. 

Last Modem Connection log:

 This log file shows the details of the modem operation including modem 

connection quality parameters.  This is updated ever time the modem makes a dilain or dialout connection. 

Time Change Log

:  This log contains a list of time change events. When the AcquiSuite system clock is changed 

either manually or by automated time sync, and the change is more than a few seconds, the event is recorded 
here. 

System boot log: 

This log shows when the AcquiSuite was started, and lists process events such as remote logins, 

or logger process restarts.  This log is most useful for detecting when the AcquiSuite was restarted, and whether 
there was a proper shutdown event prior to rebooting (if not, possibly a power outage). 

Start/End logging

: This button allows the user to start detailed logging or disable it if it is running. 

Purge Log Files

:  This button will clear all the system log files listed on this page, but not the meter data log files. 

(deletes kernel, boot, ftp, messages, upload log files)  This does not clear the interval log data from attached 

Содержание AcquiSuite+ A8814

Страница 1: ...cquiSuite Page 1 AcquiSuite Data Acquisition Server Obvius LLC Installation and Operation Manual Model A8814 Date August 27 2013 Obvius 3300 NW 211th Terrace Hillsboro OR 97124 Ph 503 601 2099 www obv...

Страница 2: ...notice Where possible we will substitute products with equivalent functionality when necessary DANGER Hazard of Electric Shock Explosion or Arc Flash Follow safe electrical work practices See NFPA 70E...

Страница 3: ...performance data Alarm notifications for data points above or below target levels including SNMP traps Creating load profiles for energy purchases Monitoring performance of critical systems Installati...

Страница 4: ...ock hazards This symbol indicates Do not apply to or remove from hazardous live conductors Direct Current symbol Protection containing a voltage disconnect switch with a fuse or disconnect circuit bre...

Страница 5: ...277VAC single phase 50 60 Hz Power Consumption 8W Max Input Current 333V and 1V current transformer Current Transformers 100 300 400 800 1600 2400A contact Obvius sales for other amperages Serial Port...

Страница 6: ...0 C or above 50 C excessive moisture dust salt spray or other contamination The meter requires an environment no worse than pollution degree 2 normally only non conductive pollution occasionally a tem...

Страница 7: ...urned off Connect voltage leads on the Line side of the conductor to ensure constant power to the AcquiSuite Wire should be 12 14 AWG Solid or stranded rated to 600VAC at 75c Screw Terminal tightening...

Страница 8: ...A8814 AcquiSuite Page 8 General Wiring Diagram Terminal connections details Electrical Connections to be added annotated product Photo...

Страница 9: ...A8814 AcquiSuite Page 9 208 480VAC 3 Phase 3 Wire Delta Without Neutral Installation 208 480VAC 3 Phase 4 Wire With Neutral Installation...

Страница 10: ...240VAC Single Phase 2 Wire With Neutral Installation 120VAC and 277VAC Single Phase 1 Wire With Neutral Installation Note The jumper wire between B and N in this configuration must be the same wire s...

Страница 11: ...n resistor should be placed at the other end of the RS485 loop between the and wires For more information about RS485 termination read the Modbus FAQ at www obvius com Some Modbus devices do not use t...

Страница 12: ...168 40 1 Netmask 255 255 255 0 AcquiSuite factory default settings Laptop Address Worksheet Step 3 Configure the laptop IP address using the following steps Note Only Windows XP is detailed below how...

Страница 13: ...ld be changed to prevent unwanted access Step 5 Expand the Networking option and select setup Verify the addresses are consistent with those in the Network Address Worksheet Step 6 Expand the Modbus o...

Страница 14: ...l authenticate itself with the server by using the serial number and a password This password must be supplied here and can be obtained when you subscribe for the BMO service or by your database admin...

Страница 15: ...ebsite faq also has a list of supported Modbus devices Modbus devices that are not supported by built in drivers may be configured using the Modbus Framework feature in the AcquiSuite At the bottom of...

Страница 16: ...he device list data in XML format Notes on RTT and Timeout configuration To best measure the true RTT set the ModbusSetup RS485 timeout to the maximum period and allow the AcquiSuite to run for 5 or 1...

Страница 17: ...uration button may be present depending on the Modbus device features Advanced Configuration Options The advanced configuration page contains special options specific to the device you are configuring...

Страница 18: ...formation starting when the AcquiSuite is booted Modbus TCP access The AcquiSuite has a Modbus TCP gateway feature that allows other systems to send queries to all attached Modbus RS485 devices This f...

Страница 19: ...og files page to record this information Debug options are as follows None No RS485 information is logged Errors Only Modbus errors are logged Transaction One line is logged describing every RS485 que...

Страница 20: ...template describes the Modbus register read commands and the conversion required for each data point that is to be read The Framework feature is an advanced feature of the AcquiSuite that requires the...

Страница 21: ...ow to red to indicate weak links Networking Network Status This page displays the current status of the AcquiSuite network connections Several interfaces may be shown if both Ethernet and ppp dialin d...

Страница 22: ...try the connection test If it fails ask your LAN administrator about proxy servers if any After changing any of the settings on this page you will be required to reboot the AcquiSuite Use the system s...

Страница 23: ...5 port use 502 Device Name You must provide a name for the Modbus device to identify it in the device list This should be something that will identify the meter location and purpose Device Type This m...

Страница 24: ...once per day Typically the synchronization will align the clock to within 1 second of the internet time source or atomic clock You may need to verify if your firewall will allow NTP or Rdate packets t...

Страница 25: ...e can keep several log files that report the general operation of the system not related to the normal data logs These include the following Debug Messages The AcquiSuite can run a syslog process to r...

Страница 26: ...will take a few seconds to verify the file checksum and prompt you with an Install button Click the install button and the AcquiSuite will install the firmware update and reboot itself to make the cha...

Страница 27: ...onse Upload test completed Got HTTP 1 1 200 OK Date Wed 17 Dec 2003 03 49 38 GMT Server Apache 1 3 23 Unix PHP 4 1 2 AuthMySQL 2 20 X Powered By PHP 4 1 2 Connection close Content Type text html SUCCE...

Страница 28: ...the following columns are shown 1 Date Time in UTC GMT time This field is quoted to handle the space in the middle The format is YYYY MM DD HH MM SS 2 Modbus error if any 0 no error see table below 3...

Страница 29: ...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...

Страница 30: ...les 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 immedia...

Страница 31: ...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 s...

Страница 32: ...an automate the process of downloading log data from the AcquiSuite to your Windows PC hard drive Enertrax DL can merge new log data into existing log files on your computer as well as provide configu...

Страница 33: ...f log files mdel gz remove the log file to free up flash space bye The mdel command will tell the FTP software to delete all files ending in gz in the current directory Some FTP clients will allow you...

Страница 34: ...A8814 AcquiSuite Page 34 Mechanical Drawing...

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