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10 NETWORKING

10.3   Troubleshooting Ethernet Problems

After reconfiguring the ethernet settings you experience problems accessing the EMB Hub with your web 
browser, check the following items.
•  

Verify that you rebooted the EMB Hub after making the changes to the network settings.

•  Use the EMB Hub LCD console. Check the IP address and Netmask. Verify these are correct.
•  Verify the ethernet link/act light next to the Ethernet port is on. It should blink with activity.
•  

Verify the network connection in your computer has the proper IP address, on the same subnet, to 
access the EMB Hub. NOTE: one common mistake is configuring the Laptop IP to the same address as 
the IP address of the EMB Hub. In order for the laptop and EMB Hub to communicate, the IP addresses 
should not be identical. (See the basic network config for suggested IP addresses.)

•  

Use the LCD console to run the Network Status test. This will attempt a number of things including a 
ping query to the gateway address. If the EMB Hub can ping an external machine such as a gateway, 
the ethernet port is most likely connected properly. If the EMB Hub does not use a gateway, try adding a 
gateway address, and make it the address of your computer.

WEB 

VERSION

Содержание A8810

Страница 1: ...DI 005 A8810 00A EMB HubTM Data Acquisition System Cat No A8810 Installation and Operation Manual WEB VERSION ...

Страница 2: ...WEB VERSION ...

Страница 3: ...stallation 4 5 Configuration 7 6 EMB Hub Administration Overview 11 7 Security 13 8 Modbus 14 9 Wireless 22 10 Networking 23 11 System Options 25 12 Diagnostics 28 13 LCD Console 29 14 Log File Data 31 15 Retrieving Data From The EMB Hub 36 16 Mechanical Drawings 39 17 Warranty and Contact Infromation 40 WEB VERSION ...

Страница 4: ...in continuous improvement therefore we must reserve the right to change specifications and product offerings without notice Where possible we will substitute products with equivalent functionality when necessary NOTICE This product is not intended for life safety applications Do not install this product in hazardous or classified locations The installer is responsible for conformance to all applicab...

Страница 5: ...24VDC 500 mA minimum but not to exceed 8A Note only 350mA is required if the USB port is not used Interval Recording User selectable 1 60 minutes Default 15 minute interval Serial Port1 RS 485 Modbus supports up to 32 external devices expandable Isolation2 The RJ45 Ethernet is isolated to 1500VDC from the main board RS485 port is isolated to 1500VDC from the main board Power input and USB port are...

Страница 6: ...1120A or equivalent 3 Termination resistor 120 ohm for long RS485 runs over 200 ft LAN information Ethernet 10 100Mbit connection point hub or switch IP address and Netmask check with system administrator Gateway address check with system administrator DNS server address check with system administrator HTTP Proxy address optional may be required if the EMB Hub is behind a firewall check with system...

Страница 7: ...w leviton 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 A8810 does not have a built in terminator A 120 ohm termination resistor should be placed at the ends of the R...

Страница 8: ...e server and the unit will begin the diagnosis of the Modbus loop After the check is completed the unit will display the following message This indicates that the EMB Hub has loaded properly and is ready for configuration and connection to the network and sensors If the Alive light does not come on or the LCD display does not cycle to the above screen verify that the power cord is plugged in If aft...

Страница 9: ... on the LCD console please review the console section of this manual 4 4 5 The EMB Hub completes a background scan for new Modbus devices every 2 5 minutes Increasing the RS485 Modbus timeout may increase the time required to detect new devices If the Modbus devices are connected after the server is booted up the devices may not appear on the screen for several minutes In the worst case allow up t...

Страница 10: ...y modem You will need the following information from your network administrator The addresses will be in the form of where refers to the numbers 0 to 9 5 1 2 Configure the IP address as selected from the table above For direct connection to laptop the address settings above are set as the factory default and you may be able to skip to the Laptop Computer Setup section if the factory default setting...

Страница 11: ...hown above The only change is that after Step B press the menu top button multiple times to see the netmask gateway and dns setup menu then push the select button to set the option Note If DHCP configuration is selected the IP netmask gateway and dns server addresses will be obtained automatically Simply select the Enable DHCP from the first TCP IP configuration menu 5 1 4 After the address informati...

Страница 12: ...will assume the installer has brought a laptop to the site and will connect the laptop to the building LAN or directly to the EMB Hub Attach the laptop to the EMB Hub or LAN as shown 5 2 2 Attach the laptop to the EMB Hub or to the LAN The A8810 will automatically detect whether a direct or crossover cable is required and will reverse polarity accordingly This feature will allow you to use either ...

Страница 13: ... TCP IP Note If you have multiple ethernet cards you may have multiple lines labeled TCP IP ethernet card Locate the ethernet card that corresponds to the physical connection to the EMB Hub and then select the TCP IP option that is linked with that ethernet card 5 3 3 Double click the TCP IP option you selected in step 5 3 2 above The Internet Protocol properties dialog will be shown This page all...

Страница 14: ... Hub Before the EMB Hub can begin logging data each Modbus device must be assigned a unique name 6 5 1 Click the device number to the left of the unconfigured Modbus device 6 5 2 A page with the current device status and readings will be displayed Click on the configure button at the bottom of the page 6 5 3 Enter a name for the device in the supplied field 6 5 4 Change any low and high range alarm s...

Страница 15: ...ect directly to the EMB Hub 6 7 4 Specify the Target address to upload data This is the website address where the EMB Hub will send the collected data If you have an in house data collection service you should enter the address of your data server in this field Leviton also provides a service called Building Manager Online that can collect and report data for you If you are using the BMO service th...

Страница 16: ...erator This account may view settings however may only change Modbus alarm ranges and device user This account can view some system settings including the Modbus device status pages and can change When using FTP to access the EMB Hub you may use the admin account username password for read only access Log information is stored in var log modbus For read write delete access use the login name root ...

Страница 17: ...tus column you may need to upgrade the firmware on the EMB Hub to access the device At the bottom of the device list page under the Type column a link is shown that will show all the Modbus devices with built in driver support provided in the firmware Use the System Firmware update page to check for newer versions of the firmware The leviton com website FAQ also has a list of supported Modbus devices...

Страница 18: ...ow devinfo Display the communications options including baud rate serial number and firmware version when available for all devices in the Modbus device list Show stats show packet counters for all devices in the device list These include Sent Total number of packets sent to this Modbus Received Total number of valid packets received from this Modbus address Error Total number of packets received t...

Страница 19: ...ding properly A list of device errors is available in the log file details section of this manual At the bottom of the page several buttons are present Done Returns you to the device list Log File This icon will display a table view of the most recent data in the current log file Use the log file export page for complete log data access XML This icon will show the current data from the Modbus device ...

Страница 20: ... at the time a log entry is taken the point will be considered in an alarm state Console Checking this checkbox will cause the EMB Hub to display this data point on the LCD console Multiple data points are rotated about every 10 seconds The values on the LCD console are updated when the next log interval occurs Point Config Some devices have configurable point features The A8332 I O module has 8 flex...

Страница 21: ...st The manual setup page has several options that must be configured before the EMB Hub will recognize the Modbus device The options are as follows Modbus Address The Modbus device address must be supplied Note when configuring a device on a remote Modbus TCP gateway the Modbus address of the remote device must not be the same as any address on the local RS485 loop Modbus TCP Gateway IP This option ...

Страница 22: ...st page for further diagnostics 8 8 Modbus Setup The Modbus setup page provides several options related to the Modbus RS485 serial port EMB Hub Name This is the name of the EMB Hub This name will be present on all log file descriptors when uploaded to a central database website such as BMO It is helpful to name th e EMB Hub based on the physical location of the system or building Note this feature ...

Страница 23: ...ion however we have not seen any problems with this in any of the Modbus devices we provide drivers for Most Modbus devices simply ignore packets received at the wrong baud rate If you are experiencing Modbus communications problems you should set the baud rate to a fixed 9600 before troubleshooting Modbus RS485 Parity This feature allows alternate parity options to be set Default is no parity Modb...

Страница 24: ... message is sent to each of the trap host addresses Specify the trap host by IP address not DNS name Direct email on alarm When checked the EMB Hub will send an email message when any data point changes its alarm state SMTP Mail Server Address The ip address of the email server on the LAN that will process and forward the email message to the recipient Sender Address The address that will be used ...

Страница 25: ...ct the ModHoppers menu from the Wireless section in the EMB Hub menu tree as shown below The graph will draw a blue box for each ModHopper that is attached to the system The blue number inside the box icon is the Modbus address of the ModHopper To the side of each icon three lines of information will be shown The device list name will be shown to the side of each ModHopper icon The link quality ho...

Страница 26: ... from the LAN to the internet The default is 192 168 40 1 If you do not have an internet connection for your LAN or you are using a crossover ethernet cable leave this field blank DNS1 DNS2 These are the primary and secondary DNS servers If you are using a dialout connection these must be set to the DNS server provided by your dialup isp If you only use the EMB Hub on a crossover cable and or diali...

Страница 27: ...r computer has the proper IP address on the same subnet to access the EMB Hub NOTE one common mistake is configuring the Laptop IP to the same address as the IP address of the EMB Hub In order for the laptop and EMB Hub to communicate the IP addresses should not be identical See the basic network config for suggested IP addresses Use the LCD console to run the Network Status test This will attempt a...

Страница 28: ...nverted to local time for the convenience of the installer The date time configuration page provides the following options Date time in UTC and Local time Date time dropdown menus to select the current local time manually Timezone a drop down list of the supported zones Time sync protocol Select NTP or Rdate Most Linux Unix systems provide rdate however many provide NTP as well Windows domain serve...

Страница 29: ... 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 Finally when drawing the time legend on the graph convert the values back to Local time before displaying i e 2003 01 01 00 00 00 to 2003 01 02 00 00 00 Any div...

Страница 30: ...ernel boot FTP messages upload log files This does not clear the interval log data from attached meter devices 11 6 Firmware Update The EMB Hub can upgrade its own firmware using the firmware update page The EMB Hub must have an Internet connection to communicate with the leviton com website for firmware updates If a LAN connection is present and configured it will be used by default After clicking the...

Страница 31: ...k Setup webpage To run a network test enter the IP address or DNS name in the field provided check the checkbox next to the test you wish to use and click the OK button Multiple tests can be specified 12 2 Connection Test The connection test page will attempt to establish an HTTP session with the specified upload server Click the begin test to start this process Information will be printed in black S...

Страница 32: ...e console the menu button will change the menu option and the select button will take action on the currently displayed option Some options provide sub menus others allow you to edit the option value The following is a tree display of the main menu and sub menus The TCP IP sub menu will allow you to configure the ethernet settings for the EMB Hub To edit the IP settings use the menu button to chang...

Страница 33: ...t cause the EMB Hub to search for new devices The EMB Hub checks for new devices in the background all the time taking about 2 5 minutes to complete each pass through all 255 possible addresses The modbus test console option simply displays the number of devices the EMB Hub presently knows about Upload Data Now If the EMB Hub is configured to upload data using HTTP POST to a webserver database such...

Страница 34: ...file name will be a link that will open up a browser window to view the contents of the single log file Clicking on the single log file will only show the contents of that log file and not all historical data for the device Use the log export feature if all log data is required 14 2 Log File Format Once you have downloaded the data from the EMB Hub you will need to process it The file is an ASCII text ...

Страница 35: ...en reporting the final data you should adjust the time to reflect the local timezone for which you are reporting The data export option on the BMO website will pro mpt you for a time zone when you export the data and will adjust the log date time accordingly Note UTC is sometimes referred to as GMT Greenwich Mean Time Modbus Error If the error value is not 0 the remainder of the columns for this lin...

Страница 36: ...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 EMB Hub will report blank fileds rather than NULL to make direct import of ...

Страница 37: ...or 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 ...

Страница 38: ...u should select a password other than the default and make note of it for future reference Number of times to retry In the event of a failure often due to dial up problems busy signals etc this option specifies the number of retries to attempt the upload again If all retries fail the EMB Hub will wait until the next scheduled upload time before trying again Time to wait before retry In the event of...

Страница 39: ...ce from the dropdown list provided Specify Comma or Tab delimited data and indicate if column headers are required Click the download button to download the data The log file format is the same as is provided by FTP and by the BMO web site Note All timestamps are in UTC When importing log files into Microsoft Excel be sure to specify the log data is comma separated and use a single quote mark as the...

Страница 40: ... process as the manual FTP data download For more information on FTP access to the EMB Hub please view the FAQ and Technotes section at leviton com Steps for Microsoft Windows command prompt FTP Use the following commands 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 to specify a command prompt prior to using md...

Страница 41: ...GS The EMB Hub uses a plastic enclosure that is approximately 4 in x 4 25 in x 2 in deep The EMB Hub has 4 mounting holes for use with a 6 screw The drawing above shows the relative position of the mounting holes WEB VERSION ...

Страница 42: ...Manufacturing Co Inc 201 North Service Road Melville NY 11747 Visit Leviton s website at http www leviton com 2020 Leviton Manufacturing Co Inc All rights reserved Specifications and price subject to change at any time without notice LIMITED 2 YEAR WARRANTY AND EXCLUSIONS Leviton warrants to the original consumer purchaser and not for the benefit of anyone else that this product at the time of its s...

Страница 43: ...WEB VERSION ...

Страница 44: ...DI 005 A8810 00A WEB VERSION ...

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