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A8814  Acq 

 

Page 11 

Connecting Third Party Modbus Devices 

Step 4

 (optional) - Connect the Modbus network loop as shown in the wiring diagram.  Follow the 

manufacturer’s instructions for installing and powering the Modbus devices. Verify that the Modbus address 
settings are unique for each device (i.e., no two devices with the same address) and power up the device. 
Connect each device in the chain by “daisy-chaining” the devices together . O and - polarity on the 
Modbus devices. For more information about Modbus loops, please read our  Modbus FAQ available at 
www.obvius.com 

Low Voltage analog, pulse, and RS485 wiring that enters electrical panels must have a minimum insulation rating 
that exceeds the voltage inside the panel.  In addition, other regulations may apply; consult the building codes in 
your area prior to installation.  

The RS485 port on the A8814 has a built in terminator.  A 150 ohm termination 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 the same label notation as the AcquiSuite.  Rather than +,-,S, Emon uses  Low, 
High, and Gnd.  To attach an Emon meter, use + to high,  - to low, and shield to gnd. 

The AcquiSuite A8814 built in electrical meter  uses Modbus address 250, and will show up in the Modbus device 
count as a single Modbus device. Additional meters and sensors can be added to the Modbus loop. 

 

Laptop/Computer Setup 

Step 1

 - You must have a computer to access and configure the AcquiSuite. This computer must have an ethernet 

connection (on the LAN or by direct connection) and must have a web browser installed such as Internet 
Explorer or Netscape. 

Note: If your building already has an existing LAN that the AcquiSuite is attached to, you can use an existing 
computer on that LAN. Check with your network administrator for details. If this option is available, use a LAN 
connected computer and skip to the “AcquiSuite administration overview” section below. 

 

Summary of Contents for AcquiSuite+ A8814

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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