Leviton A7810-000 User manual

EMB HubLite – Data Acquisition HUBLite

Leviton

Installation and Operation Manual

Model A7810

Date January 15th, 2013

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Copyright Information

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 applicable codes.

Copyright © 2001 - 2011 by Leviton
Leviton and EMB HubLite are trademarks of Leviton.
Other brand and product names are trademarks or registered trademarks of their respective holders.
U.S. Government Restricted Rights: Use, duplication or disclosure by the Government is subject to restrictions set forth in subparagraph (a) through (d)

of the Commercial Computer Restricted Rights clause at FAR 52.227-19 when applicable, or subparagraph (c) (1) (ii) of the Rights in Technical Data and
Computer Software clause at DFARS 252.227-7013, and in similar clauses in the NASA FAR Supplement.

Limited Warranty

LEVITON IS PROVIDING THIS WARRANTY IN LIEU OF ALL OTHER EXPRESS OR IMPLIED WARRANTIES, INCLUDING ANY WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY IS BUYER'S EXCLUSIVE REMEDY FOR ALL
CLAIMS AGAINST LEVITON. LEVITON SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES. LEVITON'S
TOTAL LIABILITY FOR ALL CLAIMS SHALL BE LIMITED TO THE PRICE PAID FOR ITS PRODUCT.

Leviton promises buyer that any standard product manufactured by Leviton shall be free from all material defects in design, material, or manufacturing for
a period of 2 years from the manufacture date; provided, however, that the warranty shall not extend to ordinary wear and tear or to normally replaceable
components (e.g., batteries). During the warranty period, Leviton may repair or replace (in its sole discretion) any product suffering from a warranty defect
and returned freight prepaid by buyer, with no charge to buyer for any warranty repair or replacement. The warranty shall remain in full force and effect for
such 2 year period, provided that the product: (1) was installed, operated, and maintained properly; (2) has not been abused or misused; (3) has not been
repaired, altered, or modified outside of Leviton's authorized facilities; (4) has not been sold subject to other warranty terms specified at the time of sale;
and (5) is still owned by the original purchaser. This warranty provides specific legal rights that may be varied by state law. Leviton's products are not
designed for life or safety applications.

Product Application Limitation

Leviton products are not intended for use in critical applications such as nuclear facilities, human implantable devices or life support. Leviton is not liable,
in whole or in part, for any claims or damages arising from such uses.

Leviton strongly believes 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.

FCC Part 15 Information
Note: This equipment has been tested by the manufacturer and found to comply with the limits of a class A digital device, pursuant to part 15

of the FCC rules. These limits are designed to provide reasonable protection against interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
Modifications of this product without the express authorization of Leviton nullify this statement.

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Table of Contents

Overview ........................................................................................................................................................................................................ 4

Installation Checklist ................................................................ ................................ ................................................................ ...................... 4

Markings and Symbols: .................................................................................................................................................................................. 4

Hardware Overview ........................................................................................................................................................................................ 5

A7810 Features and Specifications .......................................................................................................................................................... 5

Electrical Connections .............................................................................................................................................................................. 6

Hardware Installation ............................................................................................................................................................................... 6

Basic Network Configuration ......................................................................................................................................................................... 7

Laptop/Computer Setup ............................................................................................................................................................................ 8

EMB HubLite Administration Overview ...................................................................................................................................................... 10

Security ..........................................................................................................................................................................................................11

Modbus ..........................................................................................................................................................................................................11

Device List ..............................................................................................................................................................................................11

Device List Options .......................................................................................................................................................................... 12

Device Details. ................................................................................................................................................................................ 13

Device Configuration ....................................................................................................................................................................... 14

Advanced Configuration Options ..................................................................................................................................................... 14

Manual Device Add Options ............................................................................................................................................................ 15

Troubleshooting Pulse inputs ................................................................................................................................................................. 16

Modbus Setup ......................................................................................................................................................................................... 16

Alarm Setup ............................................................................................................................................................................................ 16

Modbus Framework................................................................................................................................................................................ 17

Wireless ........................................................................................................................................................................................................ 17

Networking ................................................................................................................................................................................................... 17

Network Status ................................................................ ................................................................ ................................ ....................... 17

Ethernet setup ......................................................................................................................................................................................... 17

Troubleshooting Ethernet Problems ....................................................................................................................................................... 18

System Options ............................................................................................................................................................................................. 18

Status ...................................................................................................................................................................................................... 18

Processes ................................................................................................................................................................................................ 18

Date and Time ................................................................................................................................ ................................ ........................ 18

Universal Time Is Your Friend ......................................................................................................................................................... 19

System logs ............................................................................................................................................................................................ 19

Firmware Update .................................................................................................................................................................................... 20

Diagnostics .................................................................................................................................................................................................. 20

Host Lookup ........................................................................................................................................................................................... 20

Connection Test ...................................................................................................................................................................................... 20

LCD Console ................................................................................................................................................................................................ 21

Log File Data ................................................................................................................................................................................................ 23

Log File Status........................................................................................................................................................................................ 23

Log File Format ...................................................................................................................................................................................... 23

Log Storage Capacity ............................................................................................................................................................................. 25

Uploading data to the BMO website....................................................................................................................................................... 25

Retrieving Data From the EMB HubLite ..................................................................................................................................................... 26

HTTP Direct from the EMB HubLite ..................................................................................................................................................... 26

FTP Direct from the EMB HubLite ........................................................................................................................................................ 26

Enertrax download direct from the EMB HubLite ................................................................................................................................. 27

HTTP/Post Upload To Building Manager Online ................................................................................................................................... 27

HTTP/Post Upload To Your Database HUBLite..................................................................................................................................... 27

Removing Data From the EMB HubLite ................................................................................................................................................ 27

Linking to EMB HubLite Device Status Pages ...................................................................................................................................... 28

Mechanical Drawings ................................................................................................................................................................................... 29

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Overview

The EMB HubLite™ data acquisition system is designed to allow owners and managers of commercial and industrial
facilities with a cost-effective means of gathering crucial information in a timely manner. To meet these requirements, the
EMB HubLite™ system provides the installer with all the tools necessary to install and configure the hardware and software
with a minimum of time and investment.

Installation Checklist

An EMB HubLite™ system installation has the following components:
Required hardware

 EMB HubLite™ A7810 data acquisition HUBLite (required)
 Ethernet connection.
 Ethernet Cat 5 cable (required for LAN or direct laptop-to-EMB HubLite connection)

 Power Supply: 24VDC

Optional hardware

 Additional pulse output devices such as a power meter.
 2 wire, twisted pair for pulse input connection.

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 HUBLite address (check with system administrator)
 HTTP Proxy address (optional), may be required if the EMB HubLite is behind a firewall (check with system

administrator)

3

Insulation connected to meters inside high voltage panels should have an insulation rating in excess of the service voltage.

Consult a licensed electrician and local building codes for further requirements that may apply.

Markings and Symbols:

WARNING: A potential risk exists if the operating instructions are not followed

General Warning Symbol: This symbol indicates the need to consult the operating instructions provided with the
product.

This symbol indicates the presence of electric shock hazards.

This symbol indicates: Do not apply to or remove from hazardous live conductors.

Direct Current symbol.

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Hardware Overview

A7810 HUBLite

A7810 Features and Specifications

Processor Arm9 embedded CPU
Operating System Linux 2.6
Memory 32 MB ram, 16 MB flash
LED Ethernet, Pulse (x4), power, alarm
Console 2 x 16 character LCD, two pushbuttons
LAN RJ45 10/100 Ethernet, full half duplex, auto polarity
Protocols Modbus/TCP, TCP/IP, PPP, HTTP/HTML, FTP, NTP, XML, SNMP-Trap
Power Supply1 24VDC, 500mA, Required (not included) The unit is to be sourced by a Class 2 power supply with

the following output: 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
Inputs2 4 pulse inputs, dry contact.

Monitor consumption, rate

Pulse rate/width user selectable to 10hz, 50hz or 100hz.
Pulse rate option: 10hz, minimum pulse width 50ms

Pulse rate option: 50hz, minimum pulse width 10ms

Pulse rate option: 100hz, minimum pulse width 5ms

Contact closure threshold 100 to 2.5k user selectable

Pulse count values are stored in non-volatile memory.
Isolation2: The RJ45 Ethernet is isolated to 1500VDC from the main board.
Power input, Pulse inputs, and USB port and are non-isolated.
Environmental Pollution Degree 2, Altitude up to 2000M.

For indoor and outdoor use when used in an appropriate enclosure.

The A7810 must be mounted inside a NEMA rated electrical enclosure for safety and isolation

requirements.

North America: Indoor, temperature -30º - +70ºc, 0 - 95% humidity, non-condensing. 4
Safety UL61010 Recognized, File: E320540 (Model A7810)
EMC FCC CFR 47 Part 15, Class A

EN 61000, EN 61326
Size 4” x 4.25” x 2” (102mm x 108mm x 51mm)
Mass 0.42 lbs (0.19 kg)

1

inputs are intended for low voltage

class 2 outputs.

2

if the product is used in a manner not
specified by the manufacture, the
protection provided by the equipment
may be impaired.

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Electrical Connections

EMB HubLite Ready

A7810

EMB HubLite

Hardware Installation

Step 1 - Unpack materials: Remove all materials from shipping box and verify all required components are available
Step 2 - Mount the EMB HubLite on the wall, panel or other appropriate location.
Step 3 – Attach pulse output devices to the pulse inputs on the A7810. For dry-contact

WARNING: After wiring the A7810, remove all scraps of wire or foil shield from the electrical panel. This
could be dangerous if wire scraps come into contact with high voltage wires.

Step 4 - Power-up and diagnostics: A power supply is not provided with the EMB HubLite EMB, therefore it is up to the

installer to provide the required 24VDC. After power is applied, the green “Alive” light in the upper right of the EMB
HubLite should come on and the LCD display will display a series of diagnostic screens ending with the following message
on the LCD display (this boot sequence may require up to 20 seconds to complete):

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192.168.40.50

This indicates that the EMB HubLite has loaded properly and is ready for configuration and connection to the network and

Static IP Address

DHCP

Direct Connection to Laptop

IP address: ___.___.___.___
Netmask: ___.___.___.___
Gateway: ___.___.___.___
DNS HUBLite: ___.___.___.___
DNS HUBLite: ___.___.___.___
HTTP Proxy _____________
proxy HUBLite port: ______

IP address: (dhcp assigned)
Netmask: (dhcp assigned)
Gateway: (dhcp assigned)
DNS HUBLite: (dhcp assigned)
HTTP Proxy _____________
proxy HUBLite port: ______

IP Address: 192.168.40.50
Netmask: 255.255.255.0
Gatway: 192.168.40.1
DNS: 70.99.203.62
HTTP Proxy: [blank]

(factory default settings)

EMB HubLite Ready

192.168.40.50

sensors. If the “Alive” light does not come on or the LCD display does not cycle to the above screen, verify that the power
wires and connector are secure, and are providing required power as specified. If after cycling the power, the unit still does
not power up (or if an error message appears in the LCD display) contact technical support. After the A7810 has been
powered up for a minute, the green Alive LED should blink slowly once per second during normal operation.

 Alive: blinks once per second while the system is operating correctly.
 Alarm: blinks to indicate a problem.
 Ethernet Link/Act: On when connected to a hub or switch, off when not connected. Blinks when LAN

traffic is being sent or received.

 RS485 RX/TX. The 485TX LED should blink slowly once per second during normal operation. The RX

LED will blink when external Modbus devices communicate with the EMB HubLite.

Step 5– Verify the pulse input LED next to each pulse input terminal blinks in conjunction with the power meter that is
attached to the input. The LED will turn on when the contact terminals are closed, or bridged together.

Basic Network Configuration

Step 1 - Determine the IP addressing needs: The IP address of the EMB HubLite™ HUBLite can be implemented using one
of three methods. Check with the network administrator to determine which method applies. For phone installations, use
"direct connection to laptop" to allow initial configuration.

 Static IP address - this is a fixed IP address which is assigned by a network administrator and configured into the

EMB HubLite; or

 Dynamic Host Configuration Protocol (DHCP) address - this process assigns an IP address dynamically to the

EMB HubLite when it is connected to the network from a host DHCP HUBLite; or

 Direct connection between the EMB HubLite and a single temporary computer such as a laptop. (primary

connection will be dialin or dialout by 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.

Network Address Worksheet

Step 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 settings are present.

To begin configuration, make sure that the HUBLite displays the start screen:

If this screen does not appear on the LCD display, press and hold the Menu button on the HUBLite for several seconds and
the message should appear. To change the IP address to the static address assigned by the network administrator, do the

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following:

A. Press the Menu button once to get the TCP/IP configuration menu

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[Main Menu]
TCP/IP Config

B. Press the Select button once to select the TCP/IP Config menu options, first of which is DHCP:

[TCP/IP Config]
DHCP on/off

[TCP/IP Config]
IP Address

[IP Address]

192.168.40.50

C. Press the Menu button once to see the TCP/IP IP Address menu:

D. Press the Select button again to select the IP Address menu:

E. At this point, the cursor on the display will be blinking on the first number in the IP address on the second

line.

F. To change the number, press the Menu button and the display will cycle through the digits 0-9 as well as
“.”. Once the correct digit is displayed, press the Select button to advance to the next digit and repeat the
process until all the digits are correct.

G. Once the IP address on the EMB HubLite matches the assigned IP address, press the Select button once
more to return to the main TCP/IP menu.

Step 3 - Set the Netmask, Gateway, and DNS HUBLite(s) addresses as noted in the chart "Network Address Worksheet"
using the same technique as shown above. The only change is that after Step B, press the Menu button multiple times to see
the Netmask, Gateway, and DNS setup menus, then push the Select button to set the options.

Note: If DHCP configuration is selected, the IP, Netmask, Gateway, and DNS HUBLite addresses will be obtained
automatically. Simply select the “Enable DHCP” from the first TCP/IP configuration menu.

Step 4 - After the address information has been set, you must reboot the EMB HubLite. Select the "(Previous Menu)" option
after step B above. The menu will then state that the EMB HubLite must be rebooted to take effect. Press the Select button
to allow the EMB HubLite to reboot.

Once the EMB HubLite has rebooted, the new IP address will be displayed on the console. If DHCP addressing was
specified, the HUBLite assigned address will be displayed.

Note: if DHCP is unable to obtain an IP address, the EMB HubLite will use the fallback address of 192.168.0.100.

Laptop/Computer Setup

Step 1 - You must have a computer to access and configure the EMB HubLite. 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
Firefox.

Note: If your building already has an existing LAN to which the EMB HubLite is attached, 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 “EMB HubLite administration overview” section below.

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Static IP Address for the laptop

DHCP

Direct Connection to Laptop

Specify an IP address
IP address: ___.___.___.___
Netmask: ___.___.___.___

Obtain an IP address automatically.
(All other required settings are assigned
by the DHCP HUBLite)

IP Address: 192.168.40.1
Netmask: 255.255.255.0

(EMB HubLite factory default settings)

EMB HubLite

EMB HubLite

LAN connected HubLite

Direct connected HubLite

The remainder of this section 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 HubLite. Attach the laptop to the EMB HubLite or LAN as shown in figure 6,
Ethernet hookup.

Step 2 - Attach the Laptop to the EMB HubLite or to the LAN. The A7810 will automatically detect whether a direct or
crossover cable is required, and will reverse polarity accordingly. This feature will allow you to use either a straight
Ethernet cable or a crossover Ethernet cable interchangeably.

If the Laptop is to be attached to an existing LAN, obtain a static IP address (or use DHCP addressing) from the network
administrator.

Laptop Address Worksheet

Step 3 - Configure the laptop IP address using the following steps. Note: Only Windows XP is detailed below, however you
can use any OS/Browser you wish such as MacOS or Linux. Details on network setup for non-windows operating systems is
beyond the scope of this document however.

A. From the Windows start menu, select the "Settings”, “Network Connections" option. Double click the 'Local Area'

network connection icon in the network folder, then click the "Properties" button.

B. In the network setup dialog, there should be a list of items including adapters, clients and protocols. Locate the item

labeled "Internet Protocol (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 HubLite and then select the TCP/IP
option that is linked with that Ethernet card.

C. Double click the TCP/IP option you selected in step B above. The

Internet Protocol properties dialog will be shown. This page allows
you to select DHCP (obtain an IP address automatically) or configure
an address manually.

D. Select the option for “Use the following IP address” as shown in the

picture to the right. Set the IP and Netmask from the Laptop
Address Worksheet above. It would be helpful to make note of your
previous settings in this dialog so you may set them back after you
are done with the EMB HubLite Configuration.

E. Close the TCP/IP settings dialog, and Network dialog.

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EMB HubLite Administration Overview

The EMB HubLite should now be available on the local area network for you to access using a web browser such as Internet
Explorer or Netscape.

Step 1 - Use your web browser to connect to the EMB HubLite by entering

http://192.168.40.50/setup/
Where 192.168.40.50 is the IP address displayed on the on the EMB HubLite LCD display.

Step 2 - When prompted, use the following default login information

Login: admin
Password: admin

Step 3 - Your web browser should now display the EMB HubLite configuration menu. To the left, a list of configuration
options are available. On the right, a specific configuration page will be shown. The first page is a welcome message with
some system status information. Proceed with the configuration of the EMB HubLite using your web browser.

Step 4 - Click on the + mark next to the Accounts menu. Select the Admin account, and click 'Change Password'. All units
are shipped with the same factory default password, and it should 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 option, and select "Device List." You should see an entry for the onboard pulse inputs.

A. Click the device number to the left of the device 250 (onboard pulse inputs).
B. A page with the current device status and readings will be displayed. Click on the 'configure' button at the bottom

of the page.

C. Enter a name for the device in the supplied field.
D. Change any low and high range alarm settings you may need. (optional)
E. Click the 'Save' button at the bottom of the page to save your changes.
F. Repeat these steps for each Modbus device.

Step 7 - Select the Modbus/Setup menu option. Specify the Modbus Loop Name. This will become the name of the EMB
HubLite. This is the name that will appear on the BMO website service (if subscribed). Specify the data logging period. The
default is 15 minutes.

Step 8 – Decide upon a method of data transfer. (see section later in this document) . If you select the HTTP/Post method to
send data to the BMO website, you can configure this by selecting the “LogFileData, Setup/Upload” page.

A. Make note of the EMB HubLite serial number.
B. Select upload options as needed for time of day to upload the data and retry control.
C. Check the checkbox to allow remote configuration. This will allow you to reconfigure the EMB HubLite from the

BMO web site without having to connect directly to the EMB HubLite.

D. Specify the "Target address to upload data." This is the website address where the EMB HubLite will send the

collected data. If you have an in-house data collection service, you should enter the address of your data HUBLite
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, the target address to upload data should be set to
http://www.buildingmanageronline.com/upload.php

E. When configuring the EMB HubLite to send data to the BMO site or your own data collection HUBLite, the EMB

HubLite will authenticate itself with the HUBLite 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 administrator.

F. Click "Apply" to save your changes.

If you select a manual transfer method, remove (blank out) the target address in the Modbus/Upload Data page.

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Security

The EMB HubLite has three levels of security. These are “operator”, “user” and “admin”. When using a browser to access
the EMB HubLite, basic http authentication is used to prompt your browser for a username and password. The admin

account uses “admin” as the default password. To change the password, select the Accounts menu from the left side tree

display. Next, select the account name. Click the “Change Password” button to set a new password for the selected account.

admin: This account has full access to modify any of the system settings. The default password is “admin”.
operator: This account may view settings, however may only change modbus alarm ranges and device names.
user: This account can view some system settings including the modbus device status pages and can change nothing.

When using FTP to access the EMB HubLite, 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” and the admin
password.

The three usernames specified are not able to be changed or renamed, nor can arbitrary usernames be added to the EMB
HubLite. Access is only controlled by setting the password for the three existing usernames noted above.

The “operator” and “user” accounts are disabled by default. These accounts are activated when you first set a password for

each.

Modbus

Device List

The Modbus Device List page will show a listing of all the devices the EMB HubLite has configured. The device list will
show the Modbus address number, status (OK, Error, Alarm, Unconfigured), the device name (user specified) and the device
identification string. Device 250 represents the onboard pulse input channels. Other devices must be added using Modbus
TCP.

Click on the Modbus address number for any of the devices for specific device details

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Note: not all Modbus devices have built in driver support in the EMB HubLite. If a device appears in the list with
“Unknown” in the status column, you may need to upgrade the firmware on the EMB HubLite 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.

At the bottom of the device list, there is an option to allow you to rename all the devices listed. This is useful for initial
deployments. There is also a troubleshooting link that will look for common configuration problems and alert you to the
appropriate solution.

Device List Options

At the top of the Modbus device list page, there are several display options that control the sorting of the device list.

Tree display: Click this icon to organize the list by showing each ModHopper, and the devices attached to each

one.
List display: (default) Show the list of Modbus devices sorted by the Modbus address number.
At the bottom of the Modbus device list, there are several options that may be selected to view or configure all the

Modbus devices at the same time. These options are as follows:
Add: Manually add a Modbus device to the device list. This option can be used to configure a Modbus device that is not

presently connected to the system, add a framework configured device, or add a Modbus/TCP connected device. See the
section on manually adding a device below.

Troubleshoot: The EMB HubLite will review the devices connected and offer suggestions about any problems found.
Rename all devices: This option allows you to edit all the device names in one configuration page. This is useful when

initially configuring a large number of new devices. A name must be assigned to a device before the EMB HubLite will log
data for it.

List all supported devices: This option will show a list of all Modbus devices with built in drivers in the installed firmware.

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Show [setup]: Display links for Device configuration and Advanced configuration for each device.
Show [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 address.
Received: Total number of valid packets received from this Modbus address.
Error: Total number of packets received that fail CRC for this device. (does not include non-response

queries)
RTT: The average round trip time for the last 7-10 packets that received a valid response. This value is useful
in configuring the Modbus timeout in the Modbus Setup page. Note: if the timeout is set too short, you will
not see an accurate value because packets dropped for timeout are not counted for RTT.

XML: Display the device list data in XML format.

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Device Details.

The device detail page will show a list of all the pulse input data points, alarm settings and console options. The data point
names for most devices are automatically entered. At the top of the page, the status of the device is shown. This usually
reports “ok” however it can include error information if the device is not responding 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 page.
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 in an XML format. The URL from this icon can be

copied and used to gather xml data for client side Javascript or Java applications.
Configure: This button will allow you to change the device parameters such as the name, alarm and console settings.

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Device Configuration

When the “configure” button is clicked from the device details page, the screen will be refreshed, with the same
information, however the device name, alarm settings and console checkbox will be available.

Device Name: This field allows you to specify a name for the device such as “main building power” or other useful name to
indicate the location or function of the device. A name must be assigned to a device before the EMB HubLite will log data
for it.

Low Alarm, High Alarm: Specify a threshold for the alarm. If the data point is recorded below the Low Alarm, or above
the High Alarm levels 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 HubLite 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. Most data points are automatically configured and this
option may not be displayed.

Advanced: At the lower right corner of the page, an advanced configuration 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. For the onboard pulse
inputs, the configuration options are shown below. The device serial number and other specific parameters will be
displayed if available.

Specific options available in the Advanced Configuration page vary depending on the features available in the Modbus
Device, as well as the features implemented in the built in EMB HubLite driver.

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Manual Device Add Options

Modbus devices may be added manually by clicking on the “add” link on the bottom of the Modbus device list page. This
option is intended for use when adding devices to the configuration profile prior to installing the physical hardware, or
configuring Modbus/TCP devices that will not automatically populate in the Modbus device list.

The manual setup page has several options that must be configured before the EMB HubLite 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 already listed in the
device list page.

Modbus/TCP Gateway IP: This option allows the EMB HubLite to log data from a remote Modbus device that is attached
to the LAN via a Modbus TCP gateway device such as an EGX or Moxa gateway.

Modbus/TCP Gateway Port: If a remote Modbus/TCP gateway is used, the tcp port of the remote gateway must be
specified. The default TCP port is 502 on most gateways.

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 menu will allow the selection of any built in driver or any Modbus Framework template that is available
on the EMB HubLite. It is important to select the driver or template that matches the Modbus device.

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Troubleshooting Pulse inputs

If the device you have attached does not appear in the Modbus device list, check the following:

 Verify the pulse input connections are correct .
 Verify the status LED blinks for the specific pulse input in question. Try bridging the two terminals at the input of the

EMB HubLite to verify the input LED turns on.

 Bridge the terminals of the pulse output meter and verify the input LED turns on. This will verify the wiring to the meter

is correct.

Modbus Setup

The Modbus setup page provides several options related to the Modbus RS485 serial port.
EMB HubLite Name: This is the name of the EMB HubLite. 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 the EMB HubLite based on the physical location
of the system, or building. Note: this feature was labeled “Loop Name” in older firmware versions.

Data logging period: This option sets the log interval for the EMB HubLite. Options range from once per minute to once
per hour. All of the selections are even divisions of one hour. The EMB HubLite calculates the next log time by finding the
next multiple of the log period past the start of the hour. For example, if the log period is 15 minutes, log readings will be

taken at 0, 15, 30 and 45 minutes past the hour. The log period is not calculated based on “15 minutes after the last
reading”

When the EMB HubLite is first started, it will take an initial reading of all the Modbus devices immediately. Following that,
the next log reading will be calculated as a multiple of the log period after the hour. The initial reading is taken to allow the
EMB HubLite to gather information for meters that require demand calculations, as well as provide accurate information
starting when the EMB HubLite is booted.

Modbus/TCP access: The EMB HubLite has a Modbus TCP gateway feature that allows other systems to send queries to
all attached Modbus RS485 devices. This feature allows control of what systems have access to the Modbus TCP gateway
feature. The settings include “no access”, “local subnet only” and “allow any”. This basic security feature only allows
control based on the IP address of the system making the request. The Modbus TCP protocol does not have provisions for
any authentication password or other methods of security. By default, the gateway feature is disabled, and set to “No
Access.”

The Modbus TCP gateway is a feature that allows the EMB HubLite to share the attached Modbus RS485 devices with other
systems such as PCs with software and building control systems. The gateway receives incoming TCP requests, verifies the
length of the packet does not exceed 255 bytes, and forwards the packet to the Modbus RS485 loop. The gateway does not
verify the contents of the packet, nor the target address specified in the request. If the Modbus RS485 device sends a valid
response back, the gateway will return this information to the the system requesting it via TCP. If no response is received, a
timeout failure will be sent to the requester. Because the gateway does not process the contents of the request or reply, it is
possible to query devices on the Modbus RS485 loop that are not specifically supported by the EMB HubLite.

Alarm Setup

The Modbus Alarms section provides the ability to send messages when alarm levels are exceeded. Messages can be sent
by email, SNMP or displayed on the LCD console. Alarms are processed at the end of the data logging period. For more
frequent alarms, shorten the data log interval. Log readings and alarm processing can be set to as often as once per minute.

Display all alarms on LCD console: When checked, all alarm messages are shown on the LCD display of the EMB
HubLite.

SNMP Trap Send Enabled: When checked, SNMP Trap messages are sent after every log period for each data point that is
in an alarm state. The trap includes information about the EMB HubLite system data point, and alarm state. A full MIB is
located on the EMB HubLite, click the MIB link to the right of this option.

SNMP Trap Host 1 (2,3): When SNMP traps are enabled, a trap 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 HubLite will send an email message when any data point changes its
alarm state.

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SMTP Mail HUBLite Address: The IP address of the email HUBLite on the LAN that will process and forward the email
message to the recipient.

Sender Address: The address that will be used in the “From:” line of the email. This is helpful in identifying the source of
the alarm email message. If your SMTP mail HUBLite has junk filtering, you may be required to use a sender address that
matches a mailbox address on the SMTP mail HUBLite; check with your mail HUBLite administrator for specific details on
this issue.

Recipient address 1 (2,3): The EMB HubLite can send a copy of the alarm notice to multiple email addresses. Specify one,
two or three email addresses in the fields provided for the recipient addresses.

Modbus Framework

The Modbus Framework feature is a tool to allow the EMB HubLite to read data from any Modbus device by creating a
template in the Modbus Framework editor. The 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 EMB HubLite that
requires the user to be familiar with the Modbus protocol and with the Modbus register point list for the specific Modbus
device that will be used.

Wireless

The EMB HubLite and AcquiSuite systems have the ability to provide diagnostic information about R9120 ModHopper
Wireless Modbus Networks. On typical systems, an R9120 will be attached to the RS485 of the master system. The A7810
can access a ModHopper network, however it must do so through a Modbus/TCP gateway. If a ModHopper is connected in
such a way, the wireless diagnostics options will be present in the EMB HubLite. Please refer to the AcquiSuite A8812 or
A8810 user manuals for further details on the wireless diagnostic features.

Networking

Network Status

This page displays the current status of the EMB HubLite network connections. Several interfaces may be shown if both
Ethernet and ppp dialin/dialout are active at the same time. Each interface will report the ip address, number of packets sent
and received, and other details specific to the interface. For the Ethernet interface, the MAC address (HWaddr) will be
shown as well as a network collision count.

Ethernet network

eth0 Link encap:Ethernet HWaddr 00:99:99:0E:C1:CA
inet addr:192.168.10.50 Bcast:192.168.10.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2624171 errors:6 dropped:0 overruns:0 frame:0
TX packets:220342 errors:0 dropped:0 overruns:0 carrier:0
collisions:1 txqueuelen:100
RX bytes:174674347 (166.5 Mb) TX bytes:50607122 (48.2 Mb)
Interrupt:5 Base address:0x320

Note: the “lo” or Loopback interface is the internal network and is always present, “eth0” is the Ethernet segment, and

“ppp0” is the dialout or dialin connection. In addition, the current gateway and DNS HUBLite information will be shown.

These items will provide information about DHCP assigned configuration information.

Ethernet setup

The Ethernet setup page has the following options:

 IP Address: The IP address of the Ethernet interface: Default 192.168.40.50
 Netmask: The netmask of the Ethernet network. Default 255.255.255.0
 Gateway Address: The gateway is the routing device that moves traffic 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.

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 DNS 1, DNS2: These are the primary and secondary DNS HUBLites. If you are using a dialout connection, these must

be set to the DNS HUBLite provided by your dialup ISP. If you only use the EMB HubLite on a crossover cable and/or
dialin mode, you should leave these blank.

 DHCP (enable/disable) If you LAN has a DHCP HUBLite, you may enable this option and remove the previous options

for IP, netmask, gateway, and DNS. Check with your LAN administrator first.

 HTTP Proxy. If your LAN is connected to the internet using a sophisticated firewall, you may need to use the HTTP

proxy feature. Check with your LAN administrator first, however if you don't have a proxy set on your computer
(MSIE/Tools/Connections-tab/LAN-Settings) then you most likely don't need to configure the EMB HubLite to use a
proxy. If in doubt, leave this blank first, and try the connection test. If it fails, ask your LAN administrator about proxy
HUBLites, if any.

After changing any of the settings on this page, you will be required to reboot the EMB HubLite Use the system/status web
configuration page, or the LCD console to reboot the EMB HubLite.

Troubleshooting Ethernet Problems

After reconfiguring the Ethernet settings, if you experience problems accessing the EMB HubLite with your web browser,
check the following items.

 Verify that you rebooted the EMB HubLite after making the changes to the network settings.
 Use the EMB HubLite 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

HubLite. NOTE: one common mistake is configuring the Laptop IP to the same address as the IP address of the EMB
HubLite. In order for the laptop and EMB HubLite 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 HubLite can ping an external machine such as a gateway, the Ethernet port is most likely
connected properly. If the EMB HubLite does not use a gateway, try adding a gateway address, and make it the address
of your computer.

System Options

Status

The system status page shows the current memory and flash disk utilization values, system up-time, and load average. Also
included on this page are two buttons for Reboot and Shutdown. It is important to use the shutdown option prior to
removing power from the EMB HubLite. The LCD console will report the reboot or shutdown status.

Processes

The system process table is shown in both tree and tabular formats. The process list is useful when contacting Leviton
technical support.

Date and Time

The EMB HubLite keeps time using UTC or Universal time. All log files are recorded in UTC time as well. Timestamps
shown on the EMB HubLite local configuration pages are converted 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 timezones.
Time sync protocol: Select NTP or Rdate. Most Linux/Unix systems provide rdate, however many provide NTP as well.

Windows domain HUBLites can also provide NTP. If possible use NTP as it is a more robust protocol.
Time HUBLite: Specify the DNS name or IP address of your time HUBLite. The default “time.Leviton.com” can be used

if the EMB HubLite has a connection to the Internet. The EMB HubLite will attempt to synchronize time with the time

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HUBLite every upload session. This will ensure that the clock is checked and adjusted at a minimum of 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 to pass through. Generally, it is better to use a local
time HUBLite if possible. The time HUBLite time.Leviton.com supports both NTP and Rdate time protocols. If you use a
GSM-connected system, you will probably need to use Rdate. NTP is blocked by many cellular service carriers.

Universal Time Is Your Friend

Log data is stored in UTC time. This allows data collection services such as BMO to collect data from multiple sites in
different time zones. If you are operating your own database system to store log data from the EMB HubLite, it is best to
store the data in UTC time in the database as well, and only convert it to local time when generating the final report or graph
for the user.

If you store data in Local time, you will have the following issues.

1) Local time is relative. Is Local the time where the EMB HubLite exists, or Local to where the data is stored? If local to

the EMB HubLite, you must shift each EMB HubLite data set depending on its location.

2) There are about 11 time zones in the US. Some observe DST, others do not. These include Alaska, Aleutian, Arizona,

Central, Eastern, Hawaii, Indiana, Michigan, Mountain, Pacific, and Samoa.

3) When converting to local time, there will be one hour of overlapping data in the fall when the time is adjusted for

Daylight Savings time. In other words, log entries run 12:45, 1:00, 1:15, 1:30, 1:45, 1:00, 1:15, 1:30, 1:45, 2:00am.
This will prevent you from sorting your data by time in your database.

4) In the spring, you will have a gap in the data from 1:59 to 3:00am. This can cause problems if you are 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 that 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.
For example, 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 EMB HubLite 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 EMB HubLite 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 EMB HubLite 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 EMB HubLite.
Last Data Upload log: This log file contains a report from the last data upload attempt to remote database/webHUBLites

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

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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 dialin or dialout connection.

Time Change Log: This log contains a list of time change events. When the EMB HubLite 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 EMB HubLite was started, and lists process events such as remote logins, or
logger process restarts. This log is most useful for detecting when the EMB HubLite 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 meter devices.

Firmware Update

The EMB HubLite can upgrade its own firmware using the Firmware Version page. The EMB HubLite 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 “Check for updates” button, the EMB HubLite will contact the Leviton.com webHUBLite and attempt to
download a list of firmware files. The list is compared to the firmware versions installed, and a listing of the files will be

displayed. If any firmware updates are available, a button to the right will be shown labeled “Download”. The firmware

files are :
asarm.cramfs The main EMB HubLite firmware file including the modbus and data logging software
usrarm.cramfs High level system support files such as FTP, and timezone information
ramdisk.gz Low level system files and system libraries
zImage The Linux operating system.

When clicking on the Upgrade button, the EMB HubLite will again contact the Leviton.com website and download the
requested firmware image file. The EMB HubLite will take a few seconds to verify the file checksum and prompt you with
an “Install” button. Click the install button and the EMB HubLite will install the firmware update and reboot itself to make
the changes take effect.

Do not power down the EMB HubLite during any step of the EMB HubLite firmware update process. Doing so may
corrupt the system and render the EMB HubLite unusable.

Diagnostics

Host Lookup

The Host Lookup page provides the ability to do some basic network tests. These are as follows:

Ping: send an echo request to the specified host.
Traceroute: Send an echo request to the target address and attempt to locate every router in between the EMB HubLite and

that address.
Nslookup: convert the DNS name to an IP address, useful for testing the functionality of the DNS HUBLite configured in

the Network/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.

Connection Test

The Connection Test page will attempt to establish an HTTP session with the specified upload HUBLite. Click the “Begin

Test” button to start this process. Information will be printed in black. Success responses will be printed in Green, and

failure messages will be printed in Red. A sample upload test follows:

Ping localhost [127.0.0.1]: Success
Ethernet IP address [192.168.10.50], mask [255.255.255.0]
Local subnet [192.168.10.0] to [192.168.10.255]
Ping ethernet ip address [192.168.10.50]: Success
Starting system debug logger

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Dialout not enabled, using ethernet LAN connection.
Ping ethernet gateway [192.168.10.1]: Success
Ping DNS #1 [192.168.10.1]: Success
The DNS #2 HUBLite address is not configured.
Resolving time HUBLite [time.Leviton.com] to an IP address: Success. Got [70.99.203.62]
Ping time HUBLite [time.Leviton.com]: Success
Testing time HUBLite
SyncTime: Sync system time with time.Leviton.com.
16 Dec 19:49:36 ntpdate[3165]: adjust time HUBLite 70.99.203.62 offset 0.009985 sec
new time: Tuesday, December 16 2003 19:49:36 PST, drift 1 seconds.
Processing upload url.
No proxy specified, using direct connect method.
Upload URL looks ok: http://www.buildingmanageronline.com/upload.php
Resolving web HUBLite [www.buildingmanageronline.com] to an IP address: Success. Got

[70.99.203.62.56.37]

Ping web HUBLite [www.buildingmanageronline.com]: Success
Connecting to HUBLite at [70.99.203.62:80]: Success
Sending HTTP request: Success
Reading response:

Upload test completed. Got:

HTTP/1.1 200 OK
Date: Wed, 17 Dec 2003 03:49:38 GMT
HUBLite: 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

SUCCESS - Test Successful

Closing TCP connection
Shutting down system debug logger

Test complete

Note in the last section where SUCCESS is indicated. The failure is due to the password not being correct.

LCD Console

The EMB HubLite has an LCD console and two push buttons labeled “Menu” and “Select”. These can be used to configure
some of the basic features of the EMB HubLite. The intended purpose of the console is to configure the EMB HubLite to a
point where a computer can communicate with it for further detailed configuration.

When the EMB HubLite is running, it will show “EMB HubLite Ready” and the current time alternated with the Ethernet IP
address. If you choose to enable the console display of data points, the LCD will also show the selected point names and
current reading values. The display will change to the next listed item about once every 10 seconds. If a data point name is
longer than will fit on the 16 character wide display, it will be scrolled. Pressing the Select button will cause the display to
change to the next configured item. Pressing the Select button quickly will skip through multiple display points.

Pressing the Menu button will cause the main menu to appear. Once [Main Menu] is shown on the 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.

[Main Menu]
TCP/IP Config
[TCP/IP Config]
DHCP on/off
IP Address
Netmask
Gateway
DNS HUBLite #1
DNS HUBLite #2
(previous menu)
Network Status
Dialin
Enable/Disable
(previous menu)
Modbus Status
Data Upload

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Show Serial #
Upload Data Now
Modules
Disable All
(previous menu)
Shutdown
Reboot
(previous menu)

The TCP/IP sub menu will allow you to configure the Ethernet settings for the EMB HubLite. To edit the IP settings, use
the Menu button to change options, and press the Select button to edit the option. Once selected, you will see the current
value displayed and a blinking square cursor on the first character. Press the Menu button to change the character or digit.
Press the Select button to use the digit and move the cursor to the right one space. If you press the Select button multiple
times, the cursor will move right a similar number of spaces, allowing you to skip over characters that may be correct based
on the previous settings. When you are finished entering the IP address, select a blank space with the Menu button, and
press the Select button. Any characters still remaining to the right of the cursor will be eliminated. In other words, if
changing 128.193.100.200 to 10.0.0.1, the new IP address will be several digits shorter than the old one.

Network Status: This option will test the Ethernet connection by attempting to ping the following addresses: localhost,
Ethernet IP address, Gateway, DNS1, and DNS2. The localhost ping will verify the kernel IP stack is properly initialized.
The Ethernet ping will verify the that Ethernet card's IP address is set and communicating with the kernel. The Ethernet
ping test does not send any packets over the Ethernet cable however. The Gateway ping test will verify that the Gateway
address responds to queries. This test is the first one that actually sends packets over the Ethernet wire. The Gateway test
does not verify that the IP address of the Gateway is correct, or that the Gateway is working correctly; it only tests that the
address specified as a Gateway responds to a ping request. The DNS1 and DNS2 ping tests verify the IP addresses listed for
DNS HUBLites respond to ping requests. This test does not verify if the DNS HUBLites can actually resolve DNS names
to IP addresses.

For a more complete test, use the Connection Test web page in the EMB HubLite diagnostics menu.
Modbus Status: This option will report the number of devices currently detected by the EMB HubLite. The display will

show a device count for “Devices OK”, “New”, and “Failed”. These are as follows:

Devices OK: The number of Modbus devices that are presently working, and have been configured.

New: Devices that the EMB HubLite supports, and are working, but have not yet been given a name.

Failed: The number of Modbus devices that either stopped responding, or are not supported by the EMB

HubLite.

Note: selecting the Modbus Status option from the EMB HubLite console does not cause the EMB HubLite to search for
new devices. The EMB HubLite 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 Status console option simply displays the number of
devices the EMB HubLite presently knows about.

Upload Data Now: If the EMB HubLite is configured to upload data using HTTP/POST to a webHUBLite/database such
as BMO, this option will cause the EMB HubLite to upload all stored data immediately.

Reboot: This option will reboot the EMB HubLite.
Shutdown: This option will stop the data logging processes and secure the flash memory. When secured, the console will

state that the power may be disconnected. It is important to shut down the EMB HubLite cleanly prior to disconnecting the
power from the device.

The EMB HubLite has an advanced menu that can be used to perform system checks and clear all configuration options to
the default settings. To access the advanced menu, wait until the LCD shows “EMB HubLite Ready” and press both the
Menu and Select buttons at the same time. Hold both down together for about 10 seconds. When the advanced menu is
displayed, you may release the two buttons. The following is a tree display of the advanced menu.

[Advanced Menu]
Console on Com1
Check Flash disk
Erase log/config

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(previous menu)

The Check Flash Disk option will force the EMB HubLite to check the entire flash disk for file system integrity. This will
require you to reboot the EMB HubLite.

The Enable Console feature will provide a shell prompt on the serial port for remote diagnostics. This is intended to be
used by Leviton technical support only.

The Reset Configuration option will remove all the user settings, data, and passwords that have been configured and will
return the EMB HubLite to the factory default settings. This is mainly useful when reconfiguring an EMB HubLite that has
been used previously on a different job or project.

Log File Data

The EMB HubLite stores data from the Modbus devices in text (CSV) log files. One log file is created for each Modbus
device on the system. On a daily basis, the log files are "rotated" -- that is the current log file is renamed and compressed
with gzip compression, and a new log file is started. This allows the EMB HubLite to make efficient use of the flash
memory. When the storage capacity is beyond 95% full, the oldest log file will be removed from the system.

Log File Status

The EMB HubLite can display a list of log files in the "Log File Data/Status" web configuration page. A bar graph will
show the amount of storage capacity that is used by the existing log data. Below, a list of Modbus device log files will be
displayed along with the file size and timestamp when each file was last modified.

Each Modbus device may have multiple log files. The log file name starts with “mb-xxx.”, where xxx is the Modbus device
address number. One file, with the .log extension, is the file where the most recent data is being stored. Other log files have
a .gz extension. These are older log data files that have been compressed to save space.

The 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.

Log File Format

Once you have downloaded the data from the EMB HubLite, you will need to process it. The file is an ASCII text file with
comma delimited data. One line is recorded for each log cycle. The file will look something like the following example from
a 4A4P-M IO Module.

'2002-01-31 18:30:00',0,0,0,-0.00,89.29,39.05,49.11,0,0,0,0
'2002-01-31 18:35:00',0,0,0x02,-0.01,104.24,39.05,49.11,0,0,0,0
'2002-01-31 18:40:00',0,0,0,,87.82,39.05,49.11,0,0,0,0
'2002-01-31 18:45:00',139,,,,,,,,,,

In this example, the first line shows a regular log entry. The second line shows a high range alarm for data point 2. The third
column shows point 1 as invalid, and the fourth line shows the Modbus device is not responding.

Notice 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. Low Range alarm bitmap (hex notation).

4. High Range alarm bitmap (hex notation)

5. Data point 1

6. Data point 2

7. - - -

8. Data point N

Comments:
Date/Time: The date/time column reports the time at which data was logged from the Modbus device. Note: this is not

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necessarily the time at the start of the log cycle. Users with large number of devices may notice some of the Modbus devices
at higher address numbers report 1 or 2 seconds after the first Modbus devices. This is because the 9600baud speed of the
Modbus loop is not fast enough to log all Modbus devices in less than 1 second. If a device does not respond during a log
cycle, the EMB HubLite will attempt to query the device several more times. If a subsequent query is successful, the time of
the successful query will be used in the log file but may be several seconds after the initial log cycle.

The log date/time is in Universal time. (UTC) This means that the data is logged with no shift for daylight savings time, and
must be converted to local time for reporting purposes. When importing into a database, data should be kept in UTC time for
ease of use. When 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 prompt you for a timezone 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 line will be reported as NULL.

1 Operation not permitted

2 No such file or directory

3 No such process

4 Interrupted system call

5 Input/output error

6 No such device or address

9 Bad file descriptor

11 Resource temporarily unavailable

12 Cannot allocate memory

13 Permission denied

16 Device or resource busy

19 No such device

23 Too many open files in system

24 Too many open files

26 Text file busy

28 No space left on device

32 Broken pipe

52 Invalid Exchange

101 Network is unreachable

110 Connection timed out

111 Connection refused

113 No route to host

129 Illegal Function (function was not allowed by the slave device)

130 Illegal Data Address (the data address is not allowed by the slave device)

131 Illegal Data Value

132 Illegal Response Length

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 EMB HubLite starts up)

161 Stop log (Entry in log file if EMB HubLite 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 (A8332-8F2D 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.

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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 HubLite will report blank fields rather
than "NULL" to make direct import of data from the EMB HubLite easier, as well as reduce the file size. Developers
intending to use data files from the EMB HubLite should handle both the word "NULL" as well as a blank column as
indications of an invalid data point.

Log Storage Capacity

The EMB HubLite 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.

When the EMB HubLite 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 EMB HubLite 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 EMB HubLite 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 EMB HubLite has successfully uploaded the log file to a database HUBLite using
the HTTP/Post protocol. If you do not configure the EMB HubLite to automatically push the log files to your HUBLite,
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 EMB HubLite.

Uploading data to the BMO website.

After the EMB HubLite has been configured and has logged some data, you will want to collect the data for analysis. There
are several ways of collecting the data from the EMB HubLite, including the Building Manager Online service. Other
methods are noted in the data collection FAQ. This section details configuring the EMB HubLite for use with the BMO
service.

Step 1: First, use your browser to connect to the EMB HubLite. Select the Modbus/Setup section from the menu on the left.
In the field titled "Modbus Loop Name" enter a name for this EMB HubLite to uniquely identify it on the BMO website.
Because the BMO site can show multiple EMB HubLite devices, it is important to have a descriptive name in this field.

Step 2: Select the “Log File Data”, “Setup/Upload” menu option. The following features are available:

 EMB HubLite Serial Number: This is the serial number that uniquely identifies this EMB HubLite. This number

cannot be changed. When uploading data to the BMO website, this serial number is used to identify the EMB
HubLite to the BMO HUBLite.

 Scheduled upload time: This option allows you to control when the EMB HubLite will initiate the upload process.

You can select any hour of the day, and the EMB HubLite will select some time at random within that hour to start
the upload. The random feature allows multiple EMB HubLite devices to share a single dialup account or phone
line by not starting the dialout at the same time for all devices. If the EMB HubLite is on a LAN connection (DSL,
Cable Modem, T1, etc) an upload time of "hourly" may be selected.

 Upload data on alarm status change will cause the EMB HubLite to initiate the upload process if any point on

any modbus device enters or leaves an alarm state. This allows the EMB HubLite to send data when an alarm is
detected, and will upload that information to the BMO website in a timely manner. The BMO website will then
send email notifications if necessary. If this option is disabled, the BMO website may not be able to send
notifications until the end of the day when the EMB HubLite calls in at its specified upload time.

 Upload data on low disk alarm: This feature will cause the EMB HubLite to attempt a data upload immediately if

the log file storage area is more than 75% full.

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 Allow remote modbus device configuration: If enabled, users may remotely configure alarms and other modbus

device features on the BMO website. When the EMB HubLite uploads data to the BMO website, it will also
download any new configuration information as needed. Note: if configuration changes are made to the EMB
HubLite, those changes will be uploaded to the BMO site. If configuration changes are made at both the EMB
HubLite and the BMO website, the most recent changes will be used.

 Target Address to upload data: This is the website URL to upload data to. This should always be set to

"http://www.buildingmanageronline.com/upload.php" unless you are configuring the EMB HubLite to send data to
your own internal database HUBLite. (see the Data Collection FAQ at Leviton.com )

 Password to upload data: This password is used by the BMO webHUBLite to verify the EMB HubLite device

authentication before accepting the uploaded data. You 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 dialup problems, busy signals, etc) this option

specifies the number of retries to attempt the upload again. If all retries fail, the EMB HubLite will wait until the
next scheduled upload time before trying again.

 Time to wait before retry: In the event of a failure, the EMB HubLite can be configured to wait for a specified

period of time before attempting another connection. This option specifies how long to wait before retrying.

Step 3: Contact the Leviton Technical Support department. Please have the EMB HubLite serial number and password to
upload data handy. Your tech support representative will confirm your BMO account and will add the EMB HubLite to one

of your client databases.

Step 4: Click the "Upload Data Now" button. Your data should be sent to the BMO webHUBLite.
Step 5: For more detailed information about the transfer process, use the Connection Test page in the Testing/Diags menu

on the EMB HubLite for a full report of the data upload progress.

Retrieving Data From the EMB HubLite

Overview of how the system was designed to work.
Now that you have installed your EMB HubLite and configured it to collect data from your meters and sensors, you will

want to collect the data from your EMB HubLite. This document will provide an overview for collecting data from the EMB
HubLite. Processing the data for billing reports, summaries, and other data processing are beyond the scope of this
document.

Three basic ways to collect data from the EMB HubLite:

 HTTP download from the EMB HubLite with a browser (pull)
 FTP download from the EMB HubLite (pull)
 Enertrax DL download from the EMB HubLite. (pull)
 HTTP Post: The EMB HubLite uploads data to a database/webHUBLite. (push)

HTTP Direct from the EMB HubLite

The EMB HubLite has the ability to export log file data to a web browser directly from the setup web pages. To use this
feature, access the EMB HubLite setup menu with your web browser. Select the "Log File Export" page from the Log File
Data menu on the left side of the page.

For each device, a separate log file will be saved. Select the device 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 text delimiter.

FTP Direct from the EMB HubLite

The EMB HubLite will allow inbound connections for transfer of log data files using the FTP protocol. Ftp to the EMB
HubLite and log in using the system admin password. Files are located in /var/log/modbus. For further information on FTP
log file transfer, please review the technote and FAQ section of the Leviton website.

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Enertrax download direct from the EMB HubLite

Leviton provides a free tool called Enertrax DL that can automate the process of downloading log data from the EMB
HubLite to your Windows PC hard drive. Enertrax DL can merge new log data into existing log files on your computer as
well as provide configuration information about the EMB HubLite. Enertrax DL can also be configured to make LAN or
Dialup calls to one or more EMB HubLite or AcquiSuite data acquisition HUBLites.

HTTP/Post Upload To Building Manager Online

 EMB HubLite sends data to the BMO website
 The BMO Website stores the data in a SQL database.
 Quick reporting from our website
 Includes remote EMB HubLite configuration service.
 Includes alarm notification by email.
 Data available for download in CSV/Tab delimited format upon your request.

HTTP/Post Upload To Your Database HUBLite

 EMB HubLite uploads data directly to your webHUBLite or database HUBLite.
 You must supply a script to process the incoming data. Sample script for ASP and PHP are available upon request.
 Requires WebHUBLite, CGI scripting and database (SQL) knowledge
 Alarm processing available by processing data on your HUBLite when data is uploaded
 Designed for integration with existing energy reporting systems.

Removing Data From the EMB HubLite

When using an HTTP/Post method to allow the EMB HubLite to push data to a database HUBLite, the EMB HubLite will
automatically remove log files from its flash memory once the EMB HubLite has confirmed that the file was received by the
database HUBLite.

If you are using the EMB HubLite with a standalone mode, you can use FTP or Enertrax DL to delete log files from the
flash memory.

With EnertraxDL, simply check the setup checkbox to delete log data after download.

For FTP, the process is essentially the same process as the manual FTP data download.

Steps for Microsoft Windows command prompt ftp.
Use the following commands.

ftp 192.168.40.50 Use the IP address of your EMB HubLite
username: root
password: admin The same as the admin password
cd /var/log/modbus
dir view a list of 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 to specify a command “prompt” prior to using mdel that will prevent the FTP client software from asking if you
are sure you wish to delete each file.

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Linking to EMB HubLite Device Status Pages

It may be helpful to create a shortcut or a hyperlink on another web page that will direct the browser to bring up a specific
device status page in your browser. To do this, right click on the page and select properties. The URL for the page will be
shown on that dialog. Simply copy/paste this URK into your link.

The EMB HubLite can provide Modbus device data in XML format. This feature, coupled with browser based AJAX
(Javascript) can provide a very powerful tool to allow the creation of custom web pages. Further examples of XML and its
uses are available on the Leviton website in the Documentation/Technotes section.

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Mechanical Drawings

The EMB HubLite uses a plastic enclosure that is approximately 4” x 4.25” x 2” deep.

The EMB HubLite has 4 mounting holes for use with a #6 screw. The drawing above shows the relative position of the
mounting holes.

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