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Problem in reading 24-bits words with VXIin

Hello,
 
I use VXI to control CAMAC modules (through a CBD8210). 
 
I have a CAMAC scaler (Lecroy 2551) with 24 bits channels, that I want to read from time to time.
 
My problem is that I can't read these channels : it seems that VXIin allows to read 16 bits or 32 bits data.
If I select 16 bits, I read the channel, but of course it doesn't go far enough.
But if I select the 32 bits option (parameter "width" = 4),  the return value is zero, just as if I wanted to read more than I am allowed.
 
Does anyone have an idea about it ?
thank you very much,
Gwen;
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Hi,
 
Have you try to contact your instrument manufacter ?
I think you can have the syntax in your user manual.
 
Regards,
 
 
Isabelle
Ingénieur d'applications
National Instruments France
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