Good day all, I thought it prudent, as someone that knows the workings of the Schaffner 2070 very well, to just clarify a few things.
The Schaffner 2070 was designed back when CE was just coming to light. It was designed to fit a niche market, mainly where companies wanted a good feel products would be OK when formal compliance testing took place. It was never intended to be an instrument where the user could access the internal workings and control them independently from the capable ( for the time ) internal software. As was mentioned, there is a way to access the internal workings of the machine, but this was meant for the factory and calibration labs since it could modify fundamental machine settings also. HOWEVER, most importantly, the 2070 was replaced some time ago by an instrument more suited for the current and future market place: the NSG 4070. http://www.teseq.com/com/en/products_so utions/emc_conducted_esd/conducted_rf_immunity/index.php?navid=11 This is a very capable instrument and should be used for any comparisons with other manufacturers. Please disregard the 2070. The NSG 4070 is designed to be controlled by Compliance 3, making it very very powerful indeed. Contact me off line if you would like to know more. Sincerely, Derek Walton L F Research [email protected] wrote: > Bob, > > Point taken. > > I cannot comment on the NSG 2070, but I checked back at the CWS500 > documentation and software. > > The proprietary software from EM-Test permits the use of calibration > files either stored in the unit or on the > controlling PC. A transfer of calibration data from the PC to the > CWS500 and back is possible. > > The software uses the calibration files stored on the PC and sets the > output level depending on the data > stored in that file. This is more than just initiating the test, but > it does not look like a closed loop to me. > Calibration can be performed either using the internal routine of the > CWS500 or using the software and > an external Power Meter also controlled by the software. > > The command set published in the manual is certainly not complete. I > would like to see more as well. > > I will have to check with TILE on the next occasion. > > I agree with your approach of having complete control over all > parameters. > But in this case I do not see a big difference between a solution > involving separate instruments > and a solution putting those separate instruments in a bigger box. > Having all from the same manufacturer > can help to simplify programming. SCPI would be a plus, but it is > still not common enough. > > Having an integrated solution for EN 61000-4-6 is good for standard > testing and if you have to deal with on-site > testing (less equipment to haul). > Using separate instruments is certainly more flexible, but means more > instruments to handle, calibrate etc. > > 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:* Bob Richards [mailto:[email protected]] > *Sent:* Donnerstag, 12. Februar 2009 19:36 > *To:* [email protected]; Nagel, Michael [NETPWR/EMBED/DE] > *Subject:* RE: EN61000-4-6 test equipment > > 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 > > 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. > > > > > > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society > emc-pstc discussion list. To post a message to the list, send your > e-mail to <[email protected] <mailto:[email protected]>> > > All emc-pstc postings are archived and searchable on the web at > http://www.ieeecommunities.org/emc-pstc > Graphics (in well-used formats), large files, etc. can be posted to > that URL. > > Website: http://www.ieee-pses.org/ > Instructions: http://listserv.ieee.org/request/user-guide.html > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <[email protected] <mailto:[email protected]>> > Mike Cantwell <[email protected] <mailto:[email protected]>> > > For policy questions, send mail to: > Jim Bacher <[email protected] <mailto:[email protected]>> > David Heald <[email protected] <mailto:[email protected]>> > - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
