
IM 01R04B08-00E-E 1st edition February 15, 2012 -00
All Rights Reserved. Copyright © 2012, Rota Yokogawa
<4. GETTING STARTED>
4-3
4.3 Reading and Writing Values
UnlikeothercommunicationprotocolsMODBUSdoesnotusestandardizeddevicedescriptionlesbut
storedataandparametersinregisters.AnoverviewoftheModbusregistersofROTAMASScanbefoundin
chapter 7.
ForcongurationtheROTAMASSMODBUScommunicationtoolisavailablefromYokogawawhichcan
addressparametersofROTAMASSwhicharemappedontoMODBUS.ThetoolcanbefoundontheDVD
whichisattachedtoeachdevice.ItisrunningunderallrecentPC-systemandsupportsallcommunication
settingsofROTAMASS.ToconnecttoROTAMASStheuserneedsaRS232toRS485orUSBtoRS485
converter.
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