Configuring ABB VSN700 Loggers



1. Ensure you have read a copy of the manufacturer operating and safety manual.  The latest copy  may be obtained from the manufacturer website ABB Document Library (website)

Please review document “Product manual VSN700 Data Logger” which can also be found here. If you are using a different inverter type, then obtain the correct Operating Manual or contact Ardexa. The VSN700 logger will collect data from ABB inverters configured for either the Aurora or Modbus protocol. Please be aware that only the "VSN700-05-XX" model includes a Modbus TCP server that converts proprietary Aurora protocol into SunSpec compliant Modbus data map. It will also convert Modbus RTU to Modbus TCP for those inverters configured for Modbus RTU.

2. Follow the inverter connection as per Page 8 of the “Product manual VSN700 Data Logger”. IMPORTANT: Take note of the comment on  Page 11 "....ABB (and legacy Power-One) PVI and UNO inverter models use a proprietary communication protocol called Aurora Protocol. To monitor these inverters with a VSN700-01 (Residential) or VSN700-03 (Commercial) Data Logger model, they must be attached to the Secondary RS-485 port on the data logger. ABB PRO inverter models use Modbus RTU protocol and must be attached to the Primary RS-485 port VSN700-03 (Commercial) Data Logger model. ...." Make sure you are talking the correct protocol to the inverters AND they are connected to the correct physical port on the VSN700.

3. Configure the VSN as per the VSN700 manual. In order for Ardexa to read the data via Modbus take note of the points below. As per Page 20, you will need an Ethernet cable connected to your laptop to talk to the VSN700. The web server (used for configuration) on the VSN700 is not available on the Ethernet network. Presumably ABB did this for security purposes. Once you have connected to it, then follow the configuration items on Page 20-24 carefully, especially noting the following

    a. Use a browser to go to  (Page 13 of the VSN700 manual). Make sure the unit has a static IP address. See Pages 14 and 20 of the user manual.

    b. Make sure each serial interface is configured to share out data via Modbus TCP. For Aurora use the "Aurora Protocol (to SunSpec) Adapter", if the inverters have been configured for Aurora. If the inverters have been configured for Modbus RTU, the use "Modbus RTU".

    c. "Home" -> "Wrench Icon" (next to the red cross) -> Select "Open Modbus TCP port for ...." all RS485/232 ports in use, regardless of whether the serial lines are configured for Aurora or Modbus. Set each serial lines Modbus TCP port to a number between 502 and 510. Make sure each serial line has a different port, and note down which serial lines are connected to which Modbus TCP Port.

    d. Configure data collect every 60 seconds, that is; the "Sampling Interval", for each RS485 line.

    e.  Please take a screenshot so we can see what protocols are avialable for each device. Like the top of Page 23.     Please annotate the screenshot as to which VSN700 (IP address) it belongs to.

    f.  Reboot the VSN700 logger (see Page 23)

 5. Please don't forget to send:

a. Screenshots of the HOME->DEVICES settings. From these screenshots we will be able to ascertain the number, type and addresses of connected inverters.

c. Which Modbus TCP Ports are available for which RS4885 lines, and

d. Confirm the static IP addresses of every VSN700 at the station

e. The name of the site.

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