Last update : 30. July 2011

   MVLOG
 Features
MVLOG is intended to record data from the Mastervolt grid tie converter (GTC) Soladin600 and Windmaster500. The connection to the converter is done via a serial TTL interface. The logger requests the relevant data of the converter rotationally  and stores these and additional data from other sensors and inputs / outputs, to a SD Card. The recording process is transient, i.e. only if the new record has changed over the last, a new entry is made.

At the same time,  the data via a RS232 or (optionally) via a RS485 (EIA485) interface is displayed in real time. The format for the SD-card recording , fits to the  CSV viewer by Ingo Wendler 2). This free PC software can display the recorded  SD-Card data on your PC and analyze them. A record is generated any second.

The format of the real-time output (via RS232 or RS485) to the program fits REALVIEW of Abacom 1). This tool is very inexpensive (about 45 €) and can display the data on-line  and analyze them .

In addition, the board can be put into a so-called transparent mode , which allows direct access to the grid converter. The original Mastervolt SW (via RS232 or RS485 for long distances) can then be used to setup or readout the GTC without changing  the interface. The normally required original COM port converter (Soladin PC-Link)  is no longer needed.

There is a third mode, the SETUP mode. It  makes sure that  no access to the GTC and no records will be performed,
during setup MVLOG.  This mode is typically not needed.

Multiple loggers can be connected easily and accessed remotely via RS485 interface. Each logger board is prepared to get a  programmable address.

The settings of the logger itself and the settings of the operation modes, can be done via RS232 or RS485. There are no set-up and display elements on the logger board, except a button for SD-Card unmount"  and a multi-color LED for status indication.

The power supply to the logger board is done via a external current-saving power supply. If more than one logger are  physically placed very close together, a single power supply for several loggers can be used. Since the current consumption is very low. The Clock (RTC) and important settings are powered  by a backup battery or are stored in the processor.

In addition ,  up to 4 external sensors can be connected. There are inputs for temperature sensors  (306/506 TSIC) or pulse type sensors (for wind speed, Anemometer) .

There are two outputs available, which can take over any optocoupler switching tasks. Function TBD.

There are also  two analog inputs available to measure external voltages . Function TBD.

1)  RealView   by Abacom
2)  CSV-Viewer by  Ingo Wendler  (look for newer version there!)


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