Power One VSN-MGR-RES SERIES User manual

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AURORA LOGGER
RESIDENTIAL AND COMMERCIAL
INSTALLATION GUIDE
VSN-MGR-RES SERIES
VSN-MGR-CMML SERIES
BCM.00099.0AL REV AB

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DISCLAIMER
The information, specifications, configurations and other technical information
regarding the products referenced herein are subject to change without notice.
All the statements, technical information and recommendations contained
herein are believed to be accurate and reliable but Power-One Corporation
makes no representations or warranties with respect to accuracy or
completeness of the contents of this Manual. Users must take full responsibility
for the application of any products referenced herein. No license whether
express, implied, arising by estoppel or otherwise, to any intellectual property
rights is granted by this User Guide.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL POWER-
ONE BE LIABLE TO BUYER, OR TO ANY PARTY CLAIMING THROUGH OR UNDER
BUYER, FOR ANY LOST PROFITS, LOSS OF DATA, INCREASED MANUFACTURING
COSTS, LOSS OF GOODWILL, OR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY OR CONSEQUENTIAL DAMAGES OF ANY KIND, ARISING OUT OF
OR RELATED TO THE USE OF THIS USER GUIDE, OR THE USE OF OR THE
INABILITY TO USE ANY PRODUCT REFERENCED HEREIN, EVEN IF POWER-ONE
HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. POWER-ONE’S
TOTAL CUMULATIVE LIABILITY SHALL BE LIMITED TO THE AMOUNTS PAID BY
BUYER TO POWER-ONE FOR THE PRODUCTS ORDERED PURSUANT TO THE
APPLICABLE PURCHASE ORDER. TO THE EXTENT SOME JURISDICTIONS DO
NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, THE ABOVE LIMITATIONS AND EXCLUSIONS MAY
NOT APPLY TO BUYER.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system, or transmitted in any form by any means, electronic or
mechanical, for any purpose, without the express written consent of Power-One
Corporation.
Power-One, the Power-One logo, Aurora Logger and Aurora Vision are
trademarks or registered trademarks of Power-One Corporation. All other
brand or product names may be trademarks or registered trademarks of their
respective holders.
Copyright© 2011-2012 Power-One Corporation

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WARRANTY
Power-One Corporation (“Seller”) hereby warrants that the product for which this User
Guide is written (the “Equipment”) will comply in all material respects with Seller’s
published specification for a period of two (2) years from the date of shipment. For any
material breach of the foregoing warranty, Seller’s sole and exclusive obligation and
buyer’s sole and exclusive remedy for breach of the foregoing warranty shall be, at
Seller’s option, to either repair, replace or issue credit for the nonconforming product,
provided proof of purchase and written notice of non-conformance are received by
Seller within the period noted above and Seller confirms the alleged non-conformity.
This warranty shall not apply to Equipment that Seller determines has been, by buyer
or otherwise, subject to unauthorized modification, improper installation, misuse, or
use for any reason other than electrical power monitoring of solar power equipment.
THIS WARRANTY EXTENDS TO BUYER ONLY AND NOT TO BUYER’S CUSTOMERS OR
USERS OF BUYER’S PRODUCTS OR SERVICES AND IS IN LIEU OF, AND SELLER
EXPRESSLY DISCLAIMS, ALL OTHER WARRANTIES, WHETHER EXPRESSED, IMPLIED,
STATUTORY, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-
INFRINGEMENT. THIS WARRANTY SHALL NOT BE ENLARGED BY, AND NO
OBLIGATION OR LIABILITY SHALL AIRISE OUT OF, SELLER’S RENDERING OF
TECHNICAL ADVICE OR SERVICES IN CONNECTION WITH THE DELIVERY OF THE
EQUIPMENT. TO THE EXTENT SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION
OF CERTAIN WARRANTIES, SOME OF THE ABOVE EXCLUSIONS MAY NOT APPLY TO
BUYER.
For further details please go to Seller’s website at: www.power-one.com
FCC Compliance Statement
This product has been tested and found to comply with the limits for a Class A digital device pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This product generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with the
manufacturer’s instruction manual, may cause harmful interference with radio communications.
Operation of this product in a residential area may cause harmful interference, in which case you will be
required to correct the interference at your own expense.
For the models that contain a cellular router:
•The transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
•To comply with FCC RF exposure compliance requirements established in the ANSI C95.1
standards, a separation distance of at least 20 cm must be maintained between the antenna of
this device and all persons.
•Changes or modifications not expressly approved by the manufacturer could void the user's
authority to operate the equipment.
This product contains FCC ID: QIPMC75I and IC: 7830A-MC75I.

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CONTENTS
1System Overview ____________________________________________________________ 5
2Installation _________________________________________________________________ 6
2.1 Preparation ___________________________________________________________________ 6
2.2 Aurora Logger Installation________________________________________________________ 7
2.3 Power One Inverter Address Configuration _________________________________________ 10
3Commissioning _____________________________________________________________ 10
3.1 Connect to the Internet_________________________________________________________ 10
3.2 Run the Setup Tool ____________________________________________________________ 11
3.3 Configure for Inverter Devices ___________________________________________________ 12
3.3.1 Set a Static IP Address _________________________________________________________________ 13
3.4 Verify Internet Connectivity _____________________________________________________ 14
3.5 Asset Registration _____________________________________________________________ 14
3.6 End-to-End Data Check _________________________________________________________ 14
3.7 Aurora Easy View Access for End User _____________________________________________ 15
4Adding a Weather Station ____________________________________________________ 17
4.1 Configuration for a Weather Station Device ________________________________________ 18
5Troubleshooting ____________________________________________________________ 21
5.1 Troubleshooting Guide _________________________________________________________ 21
5.2 How to Contact Power-One Technical Support ______________________________________ 22
6Aurora Logger Specifications __________________________________________________ 22
6.1 Data Logger / Internet Gateway Specifications ______________________________________ 22
6.2 Remote Power Wire Sizing ______________________________________________________ 24

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1System Overview
The Aurora Logger is a lightweight solution for remote data acquisition, which enables PV
system owners to benefit from advanced energy reports. The Aurora Logger collects and
analyzes energy generation data from all connected Power-One inverters and optional weather
station for commercial loggers. System performance and energy information are logged into a
database on the Information Server, where it can be retrieved and used for analysis via any
standard web-browser.
The Installer logs on to the website to register the Aurora Logger and ensures that the logger is
correctly passing information to the servers. The Installer provides a URL to the end user for
access to Aurora Easy View.
Aurora Logger in conjunction with the Aurora Vision solution brings the following benefits:
•Safeguard Your Investment and Maximize Your Return
•Improved Solar Energy System Efficiency
•Lower Life Cycle Costs
•Real-time and Historic Data Presented Using Web-based Devices
•Alarm Functions and Device Communication Failure
•Remote Access to all Data Using Internet Technology
Aurora Logger
data acquisition
system providing
data logging and
on-site backup

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The information in this document applies to all Aurora Logger Models for Residential and
Commercial. This guide provides instructions for installing the Aurora Logger hardware to
work directly with a Power-One inverter(s) and for setting up Aurora Vision Management
system for remote data access.
The Aurora Logger consists of a Data Logger/Gateway and AC Power Supply adaptor. The data
logger connects to the Local Area Network (LAN) with an Ethernet RJ45 connection (10Base-
T). Typically it connects to a Digital Subscriber Line (DSL) or Cable router/gateway to get
access to the Internet. In summary, any kind of Internet Protocol (IP) connection will work.
The Aurora Logger Residential model has the capability to monitor up to 5 Power-One single-
phase string inverters. The Aurora Logger Commercial model has the capability to monitor up
to 10 Power-One string inverters and one weather station. Inverters used with the commercial
version can be single-phase or three-phase.
2Installation
Qualified personnel with appropriate training and experience must perform Aurora Logger
installation. Follow standard safety precautions during all procedures. Appropriate personal
protection equipment (PPE), such as safety gloves and safety glasses is recommended.
WARNING!
During normal operation of the Aurora Logger, dangerous voltages flow
through many parts of the system, including: terminals, all I/O Modules
(Inputs and Outputs) and their circuits. All Primary and Secondary circuits can,
at times, produce lethal voltages and currents. Avoid contact with any
current-carrying surfaces.
2.1 Preparation
Make sure you have the following tools and materials prior to starting installation.
Tools
•Standard Electrician’s Toolkit
•Personal Protective Equipment (Gloves, Goggles, Clothing)
Materials and Test Equipment
•Twisted-Pair RS-485 Wire (Belden#3106A or eq.).
DO NOT USE CAT5/6 CABLE FOR THE RS-485 DATA WIRE.
•Ethernet Cable to make Network Connection
•Laptop Computer with Internet Browser
•Crossover Ethernet Cable
•Mounting Screws and/or Brackets

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It is also useful to know if you need to perform Asset Registration or final End-to-End Data
Checks after physical installation is complete. If so, you will need a User ID/password to log in
to Aurora Vision, and additionally you will need Administrator privileges to access the Aurora
ADMIN tool. See the Commissioning section for details.
2.2 Aurora Logger Installation
1. Check packaging for all components:
Aurora Logger
Power Supply Adapter
2. Determine the indoor location of the Aurora Logger. The suggested location is within
17m (50 ft.) of an Internet connection and within 100m (300 ft.) of your inverter(s).
3. Mount the Aurora Logger. The Aurora Logger Residential comes with flanges with
pre-drilled holes for easy mounting. Both the residential and commercial versions
require a weather protected site. The included power supply requires an ambient
temperature between 0oC and 40oC but the logger can operate between -40oC and
85oC.
4. Connect shielded twisted-pair wire to the RS-485 terminals on the inverter(s). If
there are multiple Power-One inverters, wire the inverters in a daisy chain
configuration. Use a RS-485 data wire with one twisted pair, one ground conductor,
and a shield with drain wire (Belden#3106A or equivalent).
DO NOT USE CAT5/6 CABLE FOR THE RS-485 DATA WIRE.
5. Connect other end of shielded twisted-pair wire to RS-485 terminals on the Aurora
Logger. Use the table below and the figure on the next page to make the proper
connections.
6. Connect shielded twisted-pair wire to the RS-485 terminals on the
weather/environmental station. Use a RS-485 data wire with one twisted pair, one
ground conductor, and a shield with drain wire (Belden#3106A or equivalent).
DO NOT USE CAT5/6 CABLE FOR THE RS-485 DATA WIRE.
RS-485
Screw Terminal
RS232 Serial Port 2
Eth0 -- For Internet Connection

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7. Connect other end of shielded twisted-pair wire to the Secondary RS-485 terminals
on the Aurora Logger. Use the table below and the figure on the next page to make the
proper connections. See Section 4 for more information on wiring the optional
weather station to the Aurora Logger.
RS-485 Screw Terminal
RS-485
Connection
Aurora Logger RS-485
Screw Terminal Connector
Example Aurora Inverter
RS-485 Pin Label
RS-485 Negative (-)
1
-TR (Port 5)
RS-485 Positive (+)
2
+TR (Port 4)
RS-485 Negative (-) 3 -----
RS-485 Positive (+)
4
----
Ground 5 RTN (Port 3)
VDC Power Only
6
----
8. For systems with multiple Power-One inverters, the RS-485 network must be
terminated at the final inverter by a switch near the RS-485 terminal block. The
farthest inverter in the daisy chain must be terminated by setting the inverter
termination switch to ON. For all other inverters in the daisy chain, turn OFF the
termination switch. Below are pictures of RS-485 terminals in various Power-One
inverters, as well as locations of the termination switch.1
1In some environments you may experience poor RS-485 signal strength due to noise. If signal strength is a
problem, double-check that the last inverter in the chain is terminated and other inverters are not terminated. If
problems persist, it may prove helpful to attach a 120 Ohm 0.5 Watt resistor across screw terminals 1 and 2 on
the Aurora Logger.
+12VDC Power, Port 6
Ground, Port 5
Secondary RS-485
Connectors, Terminal 1(D-)
and Terminal 2 (D+)

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9. The Power Adapter comes packaged with your Aurora Logger with an Output Plug
attached. Cut the Output Plug using standard wire cutter and strip the two conductors
for connecting them to the Screw Terminal of the Aurora Logger. Attach the
conductor with white label, which is a positive +12 VDC cable, to Port 6 of the Aurora
Logger Screw Terminal. Attach the other solid black ground conductor to Port 5 of the
Aurora Logger Screw Terminal. See the figure below.
To Network via
Switch or Router
Screw Terminal Block
on Aurora Logger
Example
Inverter
Terminal Block
Positive (+)
Negative (-)
GND
120VAC/12DC
Converter/Adapter
Aurora Logger
Ground
+12VDC Power
Use Twisted Pair Wire
PVI-xxxx Indoor Series
PVI-x.x Outdoor Series
PVI-x.x Outdoor
Series (U.S.)
Termination Switch
Adapter
+12VDC Power
Ground

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10. Connect the supplied power cord to the Aurora Logger and a standard 120VAC power
outlet.
11. Check the Aurora Logger power. There are a pair of light emitting diodes (LEDs) on
the side of the logger, opposite the RS-485/DC power terminal block. The LEDs flash
red during system boot and then one turns solid green when power is supplied and
the system is ready.
2.3 Power One Inverter Address Configuration
Power-One inverters use a proprietary RS-485 communication interface, and therefore
must be daisy-chained to the Secondary RS-485 terminal connectors. For system with
multiple inverters, each inverter must be manually assigned a different RS-485
address. Refer to the inverter manual(s) for instructions on how to set inverter addresses
and exact inverter connection points. Write down the serial number and RS-485 address
for each inverter so you can determine which inverter is which on the monitoring system.
3Commissioning
The following are the major steps required to make sure the system is operational and data is
being passed to Aurora Vision servers:
1. Connect the Aurora Logger (data logger) to your Ethernet network.
2. Run the Aurora Logger Setup Tool to verify that your Aurora Logger is configured
properly. The Setup Tool is the built-in web server of the logger.
3. Verify that you have a working Internet Connection to the Aurora Logger.
4. Perform Asset Registration using the Aurora ADMIN tool over the Internet.
5. Verify end-to-end data transfer using the Aurora Vision web portal.
Commissioning is not complete until you have performed the final two steps above over the
Internet. However, these two steps do not necessarily need to be performed as part of the
hardware installation.
3.1 Connect to the Internet
Connect the Aurora Logger to the Internet through the local area network or directly. This is
done by using a standard Ethernet cable (CAT-5/5e/6/6e) and connecting it to the Ethernet
RJ-45 port marked Eth0 on the front of the Aurora Logger. The Aurora Logger can connect
through any switch or router in your network.
Verify that the Aurora Logger has an Ethernet connection. The Eth0 LED can be used for
detecting network link and network traffic:
•Eth0 LED = GREEN = Link
•Eth0 LED = GREEN BLINK = Traffic
•Eth0 LED= OFF = No network link

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If no activity is seen on the LEDs, double-check all connections.2
Power-One recommends a wired Ethernet Internet connection because it is more reliable and
requires less setup. If it is necessary to connect to a wireless network, a wireless network
bridge with an Ethernet port is required. Purchase and configure the wireless network bridge
that is compatible with the host wireless network. Ensure that the wireless connection is
operational with a laptop before connecting it to the Eth0 port of the data logger.
Power-One does not provide Internet service or the cables required to connect the Aurora
Logger to the Internet.
3.2 Run the Setup Tool
The installer must use a laptop with a crossover Ethernet cable to communicate directly to the
Aurora Logger and run the setup tool. The setup tool has many options and capabilities, but
here we will only describe those necessary to get your system up and running. If your laptop is
equipped with a Gigabit Ethernet interface, any Ethernet cable (straight or crossover) will
work.
1. Configure the laptop’s Ethernet port to obtain a Dynamic IP address automatically
through DHCP; typically, laptops are already configured this way.
2. Connect the crossover Ethernet cable between the secondary Ethernet port marked
Eth1 on the Aurora Logger and the laptop computer.
3. Open up an Internet browser window on the computer and type in the following URL in
the address bar.
http://172.17.17.1
4. The following Home page will appear:
2The Aurora Logger is by default set to DHCP and will try to acquire its IP-address from the DHCP server on your
local network (LAN). The Aurora Logger is designed for use on an Ethernet network and must be assigned an IP
address (DHCP or static) to make it accessible. If it is required to set a static IP for the Aurora Logger, your
connection will not work until this address is set. If required, refer to the section below on setting a Static IP
address. Normally no ports should need to be opened in the network firewall. The Aurora Logger will use ports
22 and 443 outbound to transmit the data.

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Select the tabs across the top to perform configuration operations and select one of the ports in
the Devices list to set up devices.
Verify all the icons for the Aurora Logger in the status area to the right are green. It may take
some time for all the icons to turn green.
The MAC address (Logger ID) for the Data Logger is displayed at the top of the page. Be sure to
write down the MAC address of the Data Logger. The MAC address will be needed later for
Asset Registration.
3.3 Configure for Inverter Devices
The Devices list on the Home page will show all the different devices connected through all
the ports on the Data Logger. It is essential that the devices you set up here match how
devices are physically connected to your Aurora Logger.
By default, only the two RS-485 ports are set up. The primary RS-485 port is set to Modbus
RTU and the secondary RS-485 is set to Power-One. The default supports hardware
connections where all Power-One inverters are attached as an RS-485 daisy chain and
connected to the Secondary RS-485 port. Optional weather stations used with the
Commercial Logger are connected to the Primary RS-485 port. See Section 4 if you are adding
a weather station.
For the Secondary RS-485 connection, once Power-One inverters are properly addressed and
wired in the RS-485 daisy chain, inverters will automatically be discovered and displayed.

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3.3.1 Set a Static IP Address
Setting a Static IP is only necessary if required by your network. In almost all cases you can
skip this section.
1. Obtain Static IP address information for the site.
2. Select the Network tab. Set the Type (Network Connection Type) field to Static. The
page will allow you to type in the following information:
•IP address
•Subnet Mask
•Gateway
•DNS
3. Press Update at the bottom of the page.
The Aurora Logger will restart with its newly configured address.

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3.4 Verify Internet Connectivity
1. Verify that the Ethernet cable is connected between Eth0 and your network.
2. The Aurora Logger acts as a router. From your laptop connected to Eth1, verify your
internet connectivity by opening up an Internet browser window and connecting to an
Internet address, such as www.yahoo.com.
3. Remaining steps for commissioning are performed via the Internet to check end-to end
communications. Proceed with one of the following steps:
a. If you are not responsible for these remaining steps, be sure to pass on the MAC
address (Logger ID) information to the responsible party. Remove the cable from
Eth1. Installation is complete.
b. If asset registration is already complete, proceed to the section on End-to-End Data
Check.
c. If asset registration is not complete, proceed to the next section on Asset
Registration.
3.5 Asset Registration
Asset registration is performed via the Aurora ADMIN Web tool. Asset registration assigns the
MAC address of your logger to a specific plant in Aurora Vision. Asset Registration can be
performed before or after the on-site installation is complete. When you register the Aurora
Logger, all the assets (inverters) reporting data to the Aurora Logger are also registered. The
plant must be created as an asset using Aurora ADMIN before the Aurora Logger can be
assigned and registered.
From the Setup Tool, follow the link to the Asset Registration page of Aurora ADMIN. If you are
not running the Setup Tool, go to https://admin.auroravision.net/customeradmin. Select
Services > Asset Registration and type in the MAC address of the Aurora Logger. The Asset
Registration page allows you to select the plant that the data will be associated with. Note that
use of the Aurora ADMIN tool requires a User ID and password with Administrator privileges.
Select the Services > Asset Registration page in Aurora ADMIN to register the logger. Go to
https://partner.auroravision.net/display/en/Asset+Registration on the partner portal
for help in using the Aurora ADMIN tool for asset registration.
3.6 End-to-End Data Check
The last check is to make sure that data is actually being reported and is visible in the Aurora
Vision portal. Wait 15 minutes and log on to www.auroravision.net using a web browser on
an Internet connected device. Within Aurora Vision, go to Asset > Summary page for the plant
and open the Device Status panel. Verify that the energy readings agree with the inverter and
that all of the monitored devices are communicating, as indicated by the Last Reported time.

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3.7 Aurora Easy View Access for End User
The installer must supply the user with the Easy View URL so they access Aurora Easy View
and monitor their system. To find the URL for a specific user site within Aurora Vision, follow
these steps:
1. Log on Aurora Vision at www.auroravision.net and go to Asset > Details.
2. Select the asset from the asset list in the screen area to the left.
3. Once the correct asset is displayed, select Share from the Actionsmenu.

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4. A page displays to configure the Easy View display. Scroll down to the Published View
section. The URL to provide to the customer is in the Latest version field.

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4Adding a Weather Station
Weather stations are wired to the Primary RS-485 port on the Aurora Logger.
1. Connect shielded twisted-pair wire to the RS-485 terminals on the
weather/environmental station. Use a RS-485 data wire with one twisted pair, one
ground conductor, and a shield with drain wire (Belden#3106A or equivalent).
DO NOT USE CAT5/6 CABLE FOR THE RS-485 DATA WIRE.
2. Connect other end of shielded twisted-pair wire to RS-485 terminals on the Aurora
Logger. Use the table below and the figure on the next page to make the proper
connections.
RS-485 Screw Terminal
RS-485
Connection
Aurora Logger RS-485
Screw Terminal Connector
Example Aurora Inverter
RS-485 Pin Label
Example Aurora Environmental
RS-485 Pin Label
RS-485 Negative (-)
1
-TR (Port 5)
----
RS-485 Positive (+)
2
+TR (Port 4)
----
RS-485 Negative (-)
3
-----
RS-485 A(-)
RS-485 Positive (+)
4
----
RS-485 B(+)
Ground
5
RTN (Port 3)
RS-485 GND, GND
VDC Power Only
6
N/A
24VDC
Note that multiple weather stations can be supported if daisy-chained to the Primary
RS-485 port and each is given a unique Modbus address.
3. The Weather Station can tap the power terminals on the Aurora Logger for its power
source. The VSN-ENVIRO-ENTRY and VSN-ENVIRO-CMML models (as well as most
other commercial weather stations) can use +12VDC as the power voltage. Using the
Aurora Logger as the power source is optional; any appropriate VDC power source that
meets the specifications of the Weather Station may be used. To use the Aurora Logger
as the power source for the Weather Station, connect shielded twisted-pair wire to the
power terminals on the weather/environmental station.
DO NOT USE CAT5/6 CABLE FOR THE POWER WIRES.
+12VDC Power, Port 6
Ground, Port 5
Primary RS-485 Connectors,
Terminal 3 (D-) and
Terminal 4 (D+)

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4. Connect other end of shielded twisted-pair wire to the power and ground terminals
(terminals 6 and 5) on the Aurora Logger.
Wire the weather station to the Aurora Logger as shown in the figure below.
4.1 Configuration for a Weather Station Device
The Devices list on the Home page will show all the different devices connected through all
the ports on the Aurora Logger. It is essential that the devices you set up here match how
devices are physically connected to your Aurora Logger.
The port configuration for the Primary RS-485 port on the Aurora Logger must remain set to
Modbus RTU (default value). Configuration of the Primary RS-485 port only needs to be
completed when using an optional weather station.
Configure the Primary RS-485 port using the following procedure. Bring up the Setup Tool in
the same manner as for configuring inverters (connect Aurora Logger directly to a laptop and
go to http://172.17.17.1).
To Network via
Switch or Router
Screw Terminal Block
on Aurora Logger
Example Inverter
Terminal Block
Positive (+)
Negative (-)
GND
120VAC/12DC
Converter/Adapter
Aurora Logger
Ground
+12VDC Power
Use Twisted Pair Wire
Example Weather Station
Terminal Block
(+)
(-)
GND
Use Twisted Pair Wire
GND
Power for
Weather Station
Adapter
+12VDC Power
Ground

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1. Go to the Home tab. Click on the Pencil icon across from Devices. The following
screen appears:
2. The screen shows the current configuration settings for each port. Select the Plus (+)
button on the Primary RS-485 bar to add a device. A window appears to enter device
settings.
3. Select SunSpec Alliance Modbus Interchange as the Device Type from the pull-down
menu.
4. Set the Slave Id field to the Modbus address of the weather station. Note that for the
VSN-ENVIRO-ENTRY and VSN-ENVIRO-CMML weather station models the default
Modbus address is 60.
5. Enter a Description to help you identify the device if you need to change configurations
later.

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6. Click the Add button.
7. The device will be added to the Devices page, listed under the Primary RS-485 port.
8. Press the Save icon at the top to commit changes.
9. After making changes, you are reutrned to the Devices page with the status indicators,
as shown below.