SunSaver MPPT MODBUS® Specification - Morningstar Corporation
SunSaver MPPT MODBUS® Specification - Morningstar Corporation
SunSaver MPPT MODBUS® Specification - Morningstar Corporation
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<strong>SunSaver</strong> <strong>MPPT</strong> MODBUS <strong>Specification</strong>v05ContentsGENERAL INFORMATION.............................................................................................................................. 3PARAMETERS..................................................................................................................................................... 3SUPPORTED MODBUS® FUNCTIONS .......................................................................................................... 4READ HOLDING REGISTERS (0X03) AND READ INPUT REGISTERS (0X04)............................................................ 4WRITE SINGLE REGISTER (0X06)......................................................................................................................... 8READ DEVICE IDENTIFICATION (0X2B, SUBCODE 0X0E) ..................................................................................... 8VARIABLES AND DEFINITIONS .................................................................................................................... 9READ HOLDING AND READ INPUT REGISTERS ..................................................................................................... 9EEPROM VALUES ............................................................................................................................................ 16COILS................................................................................................................................................................. 23EXAMPLES ........................................................................................................................................................ 25READ HOLDING REGISTER, SCALING ................................................................................................................. 25READ HOLDING REGISTER, 2 WORD VALUES..................................................................................................... 25WRITE SINGLE REGISTER, SCALING............................................................. ERROR! BOOKMARK NOT DEFINED.REFERENCES.................................................................................................................................................... 26DOCUMENT REVISION HISTORY .............................................................................................................. 26http://www.morningstarcorp.com 2/26 23 April 2008
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