Experimental Physics and
Industrial Control System

According the documentation to Release 4.5.0 :

Changes have been made for getDouble, putDouble, getDoubleArray, putDoubleArray, getString, putString, getStringArray, and putStringArray.

1) Previously each only had support for a top level field named value. Each now allows access to a single sub field that has the correct type. Thus pvRequest must select a single field. For example

    pva->channel("PVRdumbPowerSupply")->putDouble(1.0,"power.value" );


I try to access a double array  but with no success:

    string channelName("CRYVISIL:STM:FASTSCAN:IMAGE_CHUNK");
    string providerName("pva"); 
    PvaClientPtr pva = PvaClient::get(providerName);

       pva->channel(channelName, providerName, 1.0)->putDoubleArray(freeze(valx), "value.column0");  

error message:
2019/11/28 10:06:17.754 sis0: void Sis3316Port::updateTask(): PvaClientData::putDoubleArray() did not find a scalarArray field

Command line works:

[junkes@h epics]$ pvget -r "value.column0" CRYVISIL:STM:FASTSCAN:IMAGE_CHUNK
CRYVISIL:STM:FASTSCAN:IMAGE_CHUNK structure
    structure value
        double[] column0 []

How can I address the DoubleArray?

Danke Heinz

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