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Coding of the data in the four CAN telegram types

4. Coding of the data in the four CAN telegram types

Via this telegram the logical CAN master can inquire (read) or change (write) the value of a

parameter.Inthecommunicationproleawrite-serviceisreferredtoasdomaindownload

and a read service as domain upload. The KEB CAN interface connection supports only the

shortformofthesetwoservices,thusonlyonetelegramcanbeexchangedfortheservice

request and another for the service acknowledgement between logical CAN master and the

G6 CAN control.

4.1 SDO(rx)telegram

Theaddressingoftheparameterisdoneviaunsigned16bitindexandunsigned8bitsubin-

dex.Theparametersofthefrequencyinvertercontrolareintheindexrange2000hto5EFFh.

HeretheCANindexresultsdirectlyfromtheparameteraddress(seeparameterdescription

oftheusedFIcontrol):

CAN-Index=COMBIVERTG6parameteraddress

Info

Changing from

F5toG6

The required offset of 2000h to the parameter address is not applicable at G6 (compared

withCOMBIVERTF5).

Thesubindexservesasadditionaladdressingforcomplexparameters.Itcanalsobeused

fortheset-addressingofparametersofthepowerunit.Thefollowingapplies:

Subindex Type Access to

0 Variable Parameter value

Field/

structure

Subindex0(highestaddressablesubindex)

1…8 Variable Parameter not possible

Field/

structure

Subindex1…8(correspondstoparameterset0…7);

Multiple selection not possible

KEB COMBIVERT G6 Programming Manual

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