Mastervolt MasterBus User Manual Download Page 1

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USER’S MANUAL

MasterBus - Modbus

Interface

Interface from Modbus to MasterBus

MASTERVOLT
Snijdersbergweg 93,
1105 AN Amsterdam
The Netherlands
Tel.: +31-20-3422100
Fax.: +31-20-6971006
www.Mastervolt.com

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Summary of Contents for MasterBus

Page 1: ...MASTERVOLT Snijdersbergweg 93 1105 AN Amsterdam The Netherlands Tel 31 20 3422100 Fax 31 20 6971006 www Mastervolt com Copyright 2014 Mastervolt v 1 4 September 2014 ENGLISH PAGE 1 NEDERLANDS PAGINA 9...

Page 2: ...antee period is two years after date of purchase 1 3 Liability Mastervolt can accept no liability for consequential damage due to use of the Modbus possible errors in the manuals and the results there...

Page 3: ...t Modbus to MasterBus interface Languages available English Nederlands Deutsch Fran ais Castellano Italiano Norsk Svenska Suomi Dansk Power consumption 350 mW MasterBus Powering No Din rail mounting Y...

Page 4: ...le from www mastervolt com USB MasterBus interface 6 2 MasterBus device address and variable The master of the Modbus network is able to communicate with any individual MasterBus device variable for r...

Page 5: ...ues found You need them later to enter them into the PLC system 6 4 Finding TabNr and Index In this example the Override variable is selected to communicate with The picture below shows the Monitoring...

Page 6: ...Data Read Starting Address etc CRC Error check 1 Byte 1 Byte 21 Bytes 2 Bytes Request Variable Size Value Bus address 1 Byte Variable Function code 1 Byte 0x17 Fixed Read Starting Address 2 Bytes 0 Fi...

Page 7: ...i 0x00 Fixed Quantity to Write Lo 0x06 Fixed Write Byte Count Fixed 0x0C Fixed IDAL 0x0E 0 31 IDB Hi 0x02 0 3 IDB Mi 0x17 0 255 IDB Lo 0xC1 0 255 TabNr Hi 0x00 Fixed TabNr Lo 0x00 0 3 Index Hi 0x00 0...

Page 8: ...es including Modbus ID CRC IDAL value is too high Enter a maximum 5 bit value IDB value is too high Enter a maximum 18 bit value 05 The time out error occurs when there is no response from MasterBus f...