Michael,
 
I do believe that the C3 software can control the NSG instrument.  That would
make sense, since Teseq certainly has access to the proprietary command set.
However, I don't know of any other software that would be able to control it. 
I contacted Teseq asking for the commands so I could write software for the
NSG2070 that could directly control the frequency, output level, read the
input port, etc, and all they gave me were commands to initiate the test,
level-setting procedure, etc, but not directly control the internal
instruments. I was told they were only available to labs that perform
calibrations of the equipment. I was even told by someone on this list that
there was no way I would ever get the command descriptions that I wanted,
since those labs were required to sign a non-disclosure agreement.
 
Are you sure that TILE has complete access to the CWS500, or only access to
the commands to initiate the tests? It appeared to me that the software from
EM Test only initiated and monitored the test, not actually control it.
However, I may be wrong.
 
In either case, I was not able to find a published list of the full command
set for either instrument. AR, on the other hand, implies in their ads that
the internal instruments are separately controllable.
 
My point, though, was to make sure that you can have direct software control
of the instruments through the GPIB port, if that is important to you.
Otherwise, you are stuck with the internal firmware or proprietary software.
If the standard changes, or you need to perform some custom test level
(stepped or sloped limits, etc) you are out of luck.
 
Bob Richards, NCT.

--- On Thu, 2/12/09, [email protected] <[email protected]>
wrote:


        From: [email protected] <[email protected]>
        Subject: RE: EN61000-4-6 test equipment
        To: [email protected]
        Date: Thursday, February 12, 2009, 7:12 AM
        
        
        Bob,
         
        We are using the CWS500 - it can be controlled either by the proprietary
software from EM-Test (LCD) or by TILE.
        I have to check, but AFAIR it is possible to run calibration from the 
EM-Test
software.
         
        I would be surprised if the NSG 2050 from Teseq (former Schaffner) 
cannot be
controlled from their Compliance 3 software.
         
        Best regards,
        Michael Nagel
         
        
        Michael Nagel
        Senior Staff EMC Test Engineer
        Embedded Computing
        
        Emerson Network Power
        T +49-89-9608-0
        F +49-89-9608-2376  
        [email protected]
        www.emersonnetworkpower.com/embeddedcomputing
        
        Emerson Network Power - Embedded Computing GmbH,
        Lilienthalstr. 15, D-85579 Neubiberg/Landkreis München, Deutschland /
Germany.
        Geschäftsführer Josef Wenzl, Amtsgericht München HRB 171431, 
VAT/USt.-ID:
DE 127472241
        

________________________________

        From: [email protected] [mailto:[email protected]] On Behalf Of Bob 
Richards
        Sent: Mittwoch, 11. Februar 2009 22:20
        To: [email protected]; [email protected]
        Subject: Re: EN61000-4-6 test equipment
        
        
Peter,
 
I have used the EMTest CWS500 system, as well as the Teseq (schaffner) NSG2070
system. They each have their limitations, specifically, niether can be
controlled by an external computer, other than initiating a test or
calibration. In other words, an external computer can't adjust the output
level of the signal generator, read the input level during a calibration, or
read the induced current level during a test. You pretty much are stuck with
the canned internal routines to run calibrations and tests. 
 
Actually, it may be possible to control the NSG2070 by an external computer,
but Teseq will not release the GPIB commands to do so. Believe me, I tried! 
All I was able to get were the commands to initiate the internal routines.  I
suggest that if you buy an all-in-one system, check to make sure an external
computer can *completely* control the system. I would seriously look at the AR
product, it appears to be modular and each component can be used independently.
 
http://www.arww-rfmicro.com/html/11100_conducted_immunity_systems.asp
<http://www.arww-rfmicro.com/html/11100_conducted_immunity_systems.asp> 
 
Where I presently work, we have the CWS500 but only use the internal
amplifier. We use an external signal generator and spectrum analyzer instead
of the built-in components.
 
Hope this helps.
 
Bob Richards, NCT.


 
         

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