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AccuEnergy AXM-WEB2 User Manual Download Page 101

www.accuenergy.com

V: 1.10  Revised: January 2020

99

Chapter 10:  Web Interface Readings and Parameter Settings

DNP

The AXM-WEB2 supports the DNP communications protocol. The Distributed Network  
Protocol (DNP) is an open protocol used in the electric utility industry for communication 
and interoperability among substation computers, Remote Terminal Units (RTUs), Intelligent 
Electronic Devices (e.g. meters), and master stations.

The settings for the DNP protocol can be found by clicking on the 'Settings' tab and selecting 
'Communications'. Select 'DNP' to access the settings to configure the AXM-WEB2 to commu-
nicate with a DNP master.

Click 'Save' after changing any settings. Users will be prompted to reboot the AXM-WEB2 im-
mediately or later. If later is chosen the AXM-WEB2 must be rebooted from the 'Management' 
page in order for the settings to take effect.

Summary of Contents for AXM-WEB2

Page 1: ...Acuvim II Series Power Meter AXM WEB2 User s Manual...

Page 2: ...www accuenergy com V 1 10 Revised January 2020 II Copyright 2020 V1 10 This manual may not be altered or reproduced in whole or in part by any means without the expressed written consent of Accuenergy...

Page 3: ...de warning of danger or risk during the installation and operation of the meters Electric Shock Symbol Carries information about procedures which must be followed to reduce the risk of electric shock...

Page 4: ...lication Header MBA Header Field 22 9 1 3 Function Field 23 9 1 4 Data Field 23 9 2 Format of communication 24 9 2 1 Explanation of frame 24 1 Read Status of Relay Function code 01 25 2 Read Status of...

Page 5: ...te 82 Data Log 84 Post Channel 88 Waveform Post 93 AcuCloud 95 BACnet IP 96 SNMP 98 DNP 99 IEC61850 103 EtherNet IP 105 Remote Access 105 10 6 3 Management 107 Parameter Reset 107 Reboot Meter Communi...

Page 6: ...B2 module supports two Ethernet channels IPv6 The AXM WEB2 module also supports IPv6 which is the latest version for the internet pro tocol The protocol uses 128 bit addressing in comparison to IPv4 w...

Page 7: ...Pv6 RSTP BACnet IP SNMP V3 DNP 3 0 V2 IEC 61850 2nd Edition SMTP NTP HTTP HTTPs FTP sFTP WiFi WPA WPA2 Enterprise Chapter 3 Appearance and Dimensions 22 00 0 866 22 00 0 866 55 60 2 189 90 00 3 543 3...

Page 8: ...Acuvim II series meter through the AXM WEB2 1 Remove cover from the back of the Acuvim II series meter which will expose the socket 2 Insert the installation clips to the grooves in the Acuvim II ser...

Page 9: ...me Description 1 TX Tranceive Data 2 TX Tranceive Data 3 RX Receive Data 4 n c Not connected 5 n c Not connected 6 RX Receive Data 7 n c Not connected 8 n c Not connected LED_L Yellow Displays the spe...

Page 10: ...502 Ethernet 2 Dynamic IP address By default Ethernet 2 is configured for DHCP meaning the network will dynamically assign its network properties In order to view the Ethernet 2 IP address from the me...

Page 11: ...device address page is the first page of the Setting mode It will show the Modbus address of the meter for a second before prompting for the password of the device You will be required to type in a p...

Page 12: ...l Press V A to modify the setting the cursor should now flash Press P or E to select WEB2 Press V A to confirm the change Once the protocol 2 setting of the Acuvim II meter is configured for WEB2 user...

Page 13: ...o con firm NOTE If the DHCP is selected as Auto the Ethernet module needs to be rebooted before it can be assigned with the new IP address Press P to get to N02 IP address This is the IP address for E...

Page 14: ...gin to flash Press the H button to scroll through the digits press the P or E to change the value of the flashing cursor and press V A to confirm Press P to get to N04 Gateway Press V A to configure t...

Page 15: ...value of the flashing cursor and press V A to confirm The DNS parameters must be set correctly to use the SMTP FTP HTTP Post and AcuCloud func tions Press P to get to N06 DNS Secondary Server Press V...

Page 16: ...begin to flash Press the H button to scroll through the digits press the P or E to change the value of the flashing cursor and press V A to confirm Press P to get to N08 HTTP Port Press V A to configu...

Page 17: ...begin to flash Press the P or E button to change the setting to Reset and press V A to confirm The cursor will return to No once the mod ule has successfully reset Press P to get to N10 PASSREST Pres...

Page 18: ...s to ac cess the web interface of the module by using WiFi connection This IP address cannot be modified from the meters display it can only be configured on the meters web server Press P to get to N1...

Page 19: ...e AXM WEB2 can be connected to a computer using a crossover cable standard 568A The AXM WEB2 module supports Modbus TCP and HTTPS Functions for this method of connection To connect meter directly to t...

Page 20: ...ww accuenergy com V 1 10 Revised January 2020 18 AXM WEB2 for Acuvim II Series Power Meter Click on Change adapter options Once there right click on the local area connection icon and select propertie...

Page 21: ...w accuenergy com V 1 10 Revised January 2020 19 Chapter 8 Connection Method Select the icon that says Internet Protocol Version 4 TCP IP The Internet Protocol Version 4 TCP IP Properties box will pop...

Page 22: ...of 192 168 1 254 then the computer must be assigned with an IP 192 168 1 xxx where xxx can be any number but cannot be the same as the value the meter has Once you have entered in the IP address pres...

Page 23: ...same functionalities you can use either of them according to the requirement 8 3 Connect through WiFi The AXM WEB2 can be connected through WiFi network By default the AXM WEB2 will be in Access Poin...

Page 24: ...nds a response to the master device Figure below shows how the Modbus TCP protocol works 9 1 Protocol 9 1 1 Data Frame Format MBAP Header Function Data 7x8 bits 8 bits Nx8 bits 9 1 2 Modbus Applicatio...

Page 25: ...consecutive multiple registers 9 1 4 Data Field The data field is constructed using sets of two hexadecimal digits in the range of 00 to FF The data field of messages sent from a master to slave cont...

Page 26: ...H 48H The meaning of each abbreviated field above is Transaction identifier hi High byte of transaction identifier Transaction identifier lo Low byte of transaction identifier Protocol identifier hi H...

Page 27: ...l identifier lo Length hi Length lo Unit identifier 00H 00H 00H 00H 00H 06H 01H Fun Data start register hi Data start register lo Data of registers hi Data of registers lo 01H 00H 00H 00H 02H Response...

Page 28: ...address of 1 in the Acuvim II series meter Query Transaction identifier hi Transaction identifier lo Protocol identifier hi Protocol identifier lo Length hi Length lo Unit identifier 00H 00H 00H 00H 0...

Page 29: ...s the user to obtain the measurement results of the Acuvim II series meter Below is an example to read 6 registers corresponding to the device clock of the meter starting at 1040H Transaction identifi...

Page 30: ...off all other values are illegal and will not affect they relay output status The example below is a request to a Acuvim II series meter to turn on relay output 1 Transaction identifier hi Transactio...

Page 31: ...tifier hi Protocol identifier lo Length hi Length lo Unit identifier 00H 00H 00H 00H 00H 0BH 01H Fun Data start reg hi Data start reg lo Data of reg hi Data of reg lo Byte count Value1 hi Value1 lo Va...

Page 32: ...WiFi IP address must be known 10 1 User Access Login Enter the correct IP address of the module in the search bar of the internet browser to ac cess the web interface of the AXM WEB2 The user will be...

Page 33: ...ave entered the correct password for the appropriate access level and is the same for both access levels The dashboard displays selected parameters from the different groups of metering param eters su...

Page 34: ...meter 10 3 1 Basic Metering The Basic Metering webpage includes the data of real time parameters for the Acuvim II se ries meter This includes the Line Voltages Phase Voltages Current Neutral Current...

Page 35: ...the energy data for the Acuvim II series meter such as the Active and Reactive energy that is consumed and delivered as well as the Apparent ener gy per phase and total This webpage also shows the De...

Page 36: ...stamps they were recorded at The parameters in this web page are updated every 10 sec From the Power Energy page user have the option to edit and write new Energy values Simply click on the Manual Edi...

Page 37: ...35 Chapter 10 Web Interface Readings and Parameter Settings 10 3 4 THD The THD web page shows the power quality data such as the THD THFF Crest and K Factor for both the voltage and current The parame...

Page 38: ...e harmonics of the voltage and the current waveform being measured It will display the harmonics of each phase in graphical and tabular format Select between voltage and current to view their respecti...

Page 39: ...red which can be used for remote troubleshooting This page provides a visual diagram of the phase angles with respect to the voltage connected to the Phase A voltage input The parameters in this web p...

Page 40: ...re connected and their val ues depending on the model of the module that is connected to the meter I E The AXM IO11 module will display the Relay Output status on off DI status counter The I O module...

Page 41: ...e function to work Reset DI Counter back to 0 Counters 1 6 AXM IO2 1 2 Read Digital Input Status or Digital Input Count value de pending on the mode configured Channels 1 4 Read value of the Analog Ou...

Page 42: ...wer Meter 10 4 Logs Click on the Logs tab to visit the metering logs web pages There are five kinds of logs that can be viewed they are Trend Log Data Log Alarm Log SOE Log and Waveform Log Only avail...

Page 43: ...y and apparent energy The data of the trend log can be previewed and downloaded as a csv file by clicking the Data Review and Data icons on the right top side of the diagram The trend log diagram can...

Page 44: ...on the Time Frame selected The table below displays the time intervals Time Frame Time Intervals Last 10 minutes 15 seconds 1 minute Last 1 Hour 1 minute Today 15 minutes 1 hour Yesterday 15 minutes...

Page 45: ...January 2020 43 Chapter 10 Web Interface Readings and Parameter Settings Data Preview The data preview allows the user to view the graphical data in tabular form User can also download this data into...

Page 46: ...ain in meter data base for up to years whereas all other metering data will remain in the meter data base for up to 1 month before overriding Log Param Type Detail This setting allows users to modify...

Page 47: ...ase This will allow users to clear all readings and historical data without re setting all features and functions Users can clear the logs by clicking on the button at the bottom of the Trendlog page...

Page 48: ...ata log delete NOTE Deleting the data log is permanent this cannot be undone once deleted 10 4 3 Data Log The data log web page includes all the data file for three different loggers and Acucloud You...

Page 49: ...alarm events that have occurred with the meter It will show the status of up to 16 alarm events indicating the alarm ID status parameter value that exceeded or went below the threshold and the time s...

Page 50: ...Log The SOE web page will display the Sequence of Event log for the enabled I O module that is attached to the Acuvim II series meter with timestamps and will display the DI status for up to 20 SOE ev...

Page 51: ...ecord 10 cycles before and after the triggering point whether it be a voltage sag swell or over current The waveform log on the web interface allows users to view these waveforms whenever a power qual...

Page 52: ...cking on the button Users can zoom into the graph for further detail by clicking on the The graph can be reset back by double clicking the button Users can select Close to close the waveform and navig...

Page 53: ...timestamp the capture occurred and the reason will say MANUAL at the end of the file In the waveform log page user also have the option to select and delete waveform files Simply click on the check bo...

Page 54: ...wnloaded the file can be read using a COMTRADE file reader where users can further analyze the waveform data provided from the meter 10 5 About The About tab located at the top right corner of the web...

Page 55: ...on the Dashboard page Voltage Wiring Select the type of wiring that the meter will be monitoring from the modes in the drop down list Current Wiring Select the number of CT s that will be connected t...

Page 56: ...urrent input type of the Acuvim II meter The following table displays the default CT1 values for the different Current in put options Acuvim II Current Input Default CT1 Value 1A 1 5A 5 333mV 1 RCT 10...

Page 57: ...emand type There are 4 demand types that are supported by the Acuvim II series meter users can choose one of the following 1Fixed Window The demand is calculated based on selecting the calculation per...

Page 58: ...ddress for the meter the range for this setting is from 1 247 Baud Rate The baud rate is the communication speed of the RS485 data transfer this rang es from 1200 38400 Parity Select the parity bit se...

Page 59: ...be used in the load percentage cal culation The max primary power can be calculated as follows Max Primary Power without using PTs 3 480 CT1 Max Primary Power using PTs 3 PT1 CT1 The max primary power...

Page 60: ...ys the energy accumulation in terms of the Primary and Secondary will display the energy accumu lation in terms of the secondary with resolution of up to 1Wh NOTE When the energy reading mode is chang...

Page 61: ...is method generally takes the harmonic components to do the calculation instead of using the power vector triangle method This method can be defined by the following by the fol lowing expression for s...

Page 62: ...instantaneous active and reactive currents Optional Seal Configurations Users can choose to seal the following parameters from this setting Device Run Time DI Counters Communication Channel 1 Communic...

Page 63: ...t channels and has a built in 24Vdc supply Digital Input Can be configured as either digital status or pulse counter DI Pulse Constant If the DI is configured as pulse counter then the DI pulse consta...

Page 64: ...1 Digital Output Can be configured for Pulse or Alarm mode DO 1 Output Users can select the type of energy pulse outputted from DO Channel 1 DO 2 Output Users can select the type of energy pulse outp...

Page 65: ...eed to input the maximum primary power which is the CT1 value multiplied by the PT1 value Once entered in users can then scroll down to the Primary 1 Pulse and enter the value that one pulse would rep...

Page 66: ...ng range for the Analog Output AO 1 Output Range 1 Enter in the analog output signal AO 1 Output Range 2 3 4 Enter in the ending analog output signal NOTE The analog output range can be a 4 20mA 0 20m...

Page 67: ...he DI pulse constant will represent how many pulses equals one count i e pulse constant is 2 that means that every 2 pulses the inputs reads the counter is increased by 1 Relay Output Can be configure...

Page 68: ...o modules with the same logic address For example if the user has two AXM IO1 1 and attaches them both to the meter the meter will only recognize one of the modules This function allows the user to ch...

Page 69: ...puts RO can be triggered upon alarm condition and used to activate external devices such as a buzzer light etc Alarm Enable The alarm function can be enabled or disabled Backlight Flash Trigger If ena...

Page 70: ...ows users to customize a block of registers within the Acuvim II meter using different parameters i e Basic metering THD Energy etc as well as different data types for the parameters i e Int float etc...

Page 71: ...on the button to add the parameters to the Selected window The parameters can be removed from the register block by clicking on the button and can clear the entire block by selecting the Clear button...

Page 72: ...of the system should be entered here the range is from 50 400V for wye systems or 50 690V for delta systems Voltage Swell Triggering Waveform Capture Select enable to capture voltage swell events Thr...

Page 73: ...rent should be entered here the range will be dependent on the CT1 value configured on the meter The rated current range will be from 50 100 of the CT1 value For example if CT1 is configured as 1000A...

Page 74: ...reless network The functions and protocols that the AXM WEB2 module supports can be configured by selecting the corresponding tab such as Emails Time Date Datalog AcuCloud Post for communicating with...

Page 75: ...y 1 IP per meter using RSTP protocol Network Topology Users can can daisy chain up to 32 devices using the RSTP protocol This can cut down the amount of network switches required in different applicat...

Page 76: ...ge Default is 255 255 255 0 Gateway If the DHCP is configured to Manual the Gateway can be configured from this web page Default is 192 168 1 1 The status of the Ethernet 1 port will display if it is...

Page 77: ...s the DHCP DNS servers Station The AXM WEB2 will behave like a wireless client and bridge to another wireless net work that is available In Station mode users can select the Wireless network to connec...

Page 78: ...field HTTPS Port Enter the HTTPS port number of the meter By default this setting is configured to 443 The range can be from 6000 to 9999 NOTE This setting should never be configured to 80 Enable the...

Page 79: ...bus and the Web server are disabled Proxy Server Enable Select enable to allow for forwarding of data log files to pass through the Proxy server first and then the data post server IE AcuCloud After m...

Page 80: ...age se lect the IPv6 tab to configure the settings IPv6 Enable Enable to access the settings for IPv6 Ethernet DHCP This can be set to manual or auto When set to Manual users must configure the IPv6 a...

Page 81: ...le for sending emails that the user can enable The first mode is Triggered Sending where emails are sent immediately when there is a new alarm SOE or waveform event The second mode is Timed Sending wh...

Page 82: ...cation is on users will need to provide the SMTP username and password SMTP Username Enter the SMTP user name for the SMTP server set above SMTP Password Enter the SMTP user password for the username...

Page 83: ...rt on Real time voltage current power and etc Energy Data Report on energy parameters Harmonics Data Report on the voltage and current harmonics from 2nd to 63rd Sequence Phase Angles Report on the po...

Page 84: ...Network Time Protocol protocol so that the module can update the meter s device clock by synchronizing with a time server The module can sync with up to 3 time servers If a time server is down the mod...

Page 85: ...2 us pool ntp org 3 us pool ntp org For more NTP servers based on region visit the following site http www pool ntp org en Time Zone Select the time zone the meter is in or the time zone in which you...

Page 86: ...settings that are applicable Post Channel Select the channel to push the datalog to Only an enabled post channel can be selected here A post channel can be enabled in the Post Channel tab on the sett...

Page 87: ...ed in the the data log The image below describes how these parameter details function in the data log The image of the csv file below depicts a sample of a data log where the data is logged every 5 mi...

Page 88: ...cted parameters are Real time and I O the min log interval is 1 sec If selected parameters are Real time and Energy the min log interval is 15 sec Post File Length Select how frequently the log file w...

Page 89: ...www accuenergy com V 1 10 Revised January 2020 87 Chapter 10 Web Interface Readings and Parameter Settings...

Page 90: ...enabling the SFTP function the user must reboot the communication module in order to access the data logs with the default password of accuenergy Click Save after changing any settings Users will be...

Page 91: ...name will be based on the Log File Name Format configuration from the Data Log settings Post File Name Users can enter a name for the file that will be posted as if Post Name Fixed is enabled If the H...

Page 92: ...to a second server Post Channel 2 Enable Enable the Post Channel 2 in order to configure the settings needed to post data via the HTTP S FTP post functions Post Method Select the method for posting t...

Page 93: ...ds to begin with the prefix ftp FTP Port Enter the port number the server will be listening on FTP Username Enter the username required to log into the FTP server FTP Password Enter the password requi...

Page 94: ...TPS server The URL needs to begin with the prefix http or https HTTP HTTPS Port Enter the port number the server will be listening on HTTP HTTPS Meter ID Enter a name or description for the meter to b...

Page 95: ...munications page click on the Waveform Post tab NOTE This function is only available on Acuvim IIW models which support the Waveform Cap ture Function all other models will not have this feature avai...

Page 96: ...er the port number the server will be listening on HTTP HTTPS Meter ID Enter a name or description for the meter to be identified on the server NOTE The Test Waveform Post button should only be utiliz...

Page 97: ...e found by clicking on the Settings tab and selecting Communications Select AcuCloud to access the settings to configure the AXM WEB2 to send data to the cloud AcuCloud Enable Select Enable to enable...

Page 98: ...Management page for the settings to take effect The AXM WEB2 will post the data continuously every 5 minutes after the reboot BACnet IP The AXM WEB2 module supports the BACnet IP protocol The setting...

Page 99: ...for the device which will receive broadcast messages on one subnet and forward them to another subnet Enter BACnet Port of the BBMD in BBMD Port Enter a value between 5 1440 min in the Time To Live fo...

Page 100: ...password which allows only authorized users to access the meters data Trap Enable Select Enable so that the meter will send a message to the management station when an event is triggered The event cou...

Page 101: ...puters Remote Terminal Units RTUs Intelligent Electronic Devices e g meters and master stations The settings for the DNP protocol can be found by clicking on the Settings tab and selecting Communicati...

Page 102: ...re the settings relat ed to the DNP function TCP IP Mode By default the TCP IP is set as TCP UDP it can be changed to TCP dual endpoint mode or UDP only Local TCP Port Enter the port number for the lo...

Page 103: ...ort for response Enter the port number of the destination UDP server for response Link address Enter the address number of the slave device Master link address Enter the address number of the master d...

Page 104: ...ggered once the event holding time is longer or equal to the threshold time The range is from 0 86400000 milliseconds Support for broadcast functionality In DNP there three broadcasting addresses that...

Page 105: ...2 immediately or later If later is chosen the AXM WEB2 must be rebooted from the Man agement page in order for the settings to take effect IEC61850 The AXM WEB2 supports IEC 61850 which is a standard...

Page 106: ...nd altered by the user in order to meet their requirements Select CID File Users can upload their own CID configuration file by selecting Choose File and then selecting Upload once the correct file is...

Page 107: ...EtherNet IP protocol EtherNet IP Explicit Exchanges Port Users can configure the EtherNet IP port the default port is 44818 and the port number ranges from 44800 44899 EtherNet IP Implicit Exchange In...

Page 108: ...cess Enable Select Enable to enable the function and allow for Remote Access Current Status Will provide user with a status of the Remote Access on whether it is Regis tered or Unregistered Users can...

Page 109: ...he Management page Demand Energy Max and Min Alarm Record Device Run Time NOTE The module must be rebooted in order for the remote access connection to work properly Registration Status Displays the s...

Page 110: ...communication or meter setting is changed if a module reboot is not performed the settings will not be saved to the meter and will go back to its default settings This not only resets the communicatio...

Page 111: ...Debug Diagnostic The debug diagnostic allows the user to enable or disable the debug logs The current status will say All off if disabled All On if enabled Users can click on the advanced link to tur...

Page 112: ...im II Series Power Meter Diagnostic File The is a diagnostic file on the WEB2 module that users can download which can be used to ana lyze the modules diagnostics NOTE Please send the diagnostic file...

Page 113: ...nergy com V 1 10 Revised January 2020 111 Chapter 10 Web Interface Readings and Parameter Settings 10 6 4 Network Diagnostic The Network Diagnostic page can be used to monitor the network status of th...

Page 114: ...users can utilize the ping function to test the reach ability to other networks Users can also use the ping6 function to ping an IPv6 address User can also use the Connection Test function to test the...

Page 115: ...ce There is an Auto Firmware Update feature available also this allows users to update the module automatically without manually going into the web server and performing the update NOTE Users can also...

Page 116: ...c firmware update when users log in to the web interface for the first time after the update they will see a message displayed which shows the time and date the module was updated at as well as the fi...

Page 117: ...Click OK to log out the web interface and wait for 1 2 minutes to complete the reboot Login to the web interface of AXM WEB2 after the reboot is complete and go to the About page to check if the modul...

Page 118: ...or Acuvim II Series Power Meter Remote Update Users can also use the remote firmware server to update the module firmware Click on Check to verify if there is a firmware update available If there is a...

Page 119: ...020 117 Chapter 10 Web Interface Readings and Parameter Settings Once the download is complete the updating process will begin When the firmware update is complete the module will reboot The rebooting...

Page 120: ...Infor mation page From the Device Information page users can ensure that the meter was updated correctly to the right firmware version 10 6 6 Meter Firmware Update The AXM WEB2 allows users to update...

Page 121: ...ace Readings and Parameter Settings Manual Update Users can update the meter firmware manually by loading the firmware file to the web server Click on Choose File and upload the correct file All firmw...

Page 122: ...en the firmware update is complete the module will reboot The rebooting process will take 1 2 minutes to complete After the meter reboots users will be able to log back into the web interface When log...

Page 123: ...Remote Update Users also have the option to use the remote firmware server to update the meters firmware Click on Check to verify if there is a firmware update available If there is a update availabl...

Page 124: ...20 122 AXM WEB2 for Acuvim II Series Power Meter Users can click on Show Details to view the update percentage of the firmware When the firmware update is complete the module will reboot The rebooting...

Page 125: ...the meter reboots users will be able to log back into the web interface When logged in click on the About tab located on the top right corner of the web page to view the Device Infor mation page From...

Page 126: ...users know that the meter firmware update process has failed and to try updating the meter firmware again The meter will stay in this mode until the meters firmware has been up dated successfully Use...

Page 127: ...n file All Meter settings General IO Alarm Custom Read Waveform Network settings Only DNS1 DNS2 Modbus TCP Port HTTP Proxy All Email settings All Time Date settings All Data Log settings All Post Chan...

Page 128: ...tion file Once the description is entered in click on the Backup button The backup is displayed in the List of Local Configurations The file has a file format that in cludes the module serial number...

Page 129: ...e backup was created Users can export the configuration file and use it on other WEB2 modules The file is down loaded as a an file To implement the configuration file click on Apply A prompt warning t...

Page 130: ...figuration file conf an file format to the WEB2 module Click on Import to upload the configuration file to the WEB2 module The newly imported file will now appear in the List of Local Configurations N...

Page 131: ...877 721 8908 INT 1 416 497 4100 FAX 1 416 497 4130 E marketing accuenergy com ACCUENERGY CANADA INC 2 Lansing Square Suite 700 Toronto ON M2J 4P8 Canada Revision Date January 2020 MAKE ENERGY USAGE SM...

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