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read port data: N5242A PNA plus N4376B LCA

Question asked by dly on Sep 12, 2013
Latest reply on Sep 13, 2013 by mkelly
I am trying to read the port data of Lightwave Compnent Analyzer (LCAN 4376B, connected together with PNA N5242A) by Labview write and read VISA function with the following syntax:

MMEM: STOR: TRAC: FORM: SNP RI
FORM: DATA ASCII,0
CALC1: DATA: SNP: PORTs? "1,2"

But it returns error in read VISA. Error Code: -1073807339, Timeout Expired before operation command. 

I am wondering whether it is the problem of LCA. I tested the same syntax with pure PNA (N5247A) and can get the measurement data in read buffer. 

Could anyone help me to configure the problem? 

Also is there any reference manual of the SCPI commands for LCA? Cannot find it in the website. 

Thanks.  

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