Hi, Simon.
We need to guess riddle: Why the Isodat is awaiting AS signal (as you wrote) , if there is not AS in the configuration? Unfortunately, I am not close to Trace GC.
Vladimir.

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На 14 мая 2018 г., в 20:54, "Harlow, Benjamin" <[log in to unmask]> написал:п

Hi Simon, we also have a com cable labeled “computer” which runs from the GC to the computer. You did not describe one of these, which is new to me. Perhaps it just got unplugged?

 

We do not have a second detector like you, but I looked up my handshaking to see it would be of help.

 

Remote start: High to low

GC ready out, inhibit ready, prep run out: when low

End run out, start of run out: high to low

 

Hope you get it resolved.

 

Cheers, Ben

 

From: Stable Isotope Geochemistry <[log in to unmask]> On Behalf Of Simon
Sent: Sunday, May 13, 2018 3:31 AM
To: [log in to unmask]
Subject: Re: [ISOGEOCHEM] Aw: Re: [ISOGEOCHEM] "GC injected" signal not received by isodat

 

Hey Vladimir!

I already tried it with an old isodat backup, but did not solve my problem! :-( 

Thanks a lot for your continuous input!!

 

Best,

Simon

 


On 12.05.2018, at 16:37, Vladimir <[log in to unmask]> wrote:

Hi, Simon. Did you create Backup Isodat in Version Handler when all system worked nice? If yes, do Restore. If not try to use Window restore point.

Regards, Vladimir.

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На 11 мая 2018 г., в 11:46, simon leitner <[log in to unmask]> написал:п

Dear Vladimir!

 

Today I made a new configuration without any AS. I started a new sequence with a new IRMS method (isodat aquisition start: by device). I then manually started the GC, but isodat stayed at "waiting for AS trigger". hmm??

 

best,

simon

 

Gesendet: Mittwoch, 09. Mai 2018 um 12:36 Uhr
Von: Vladimir <
[log in to unmask]>
An: 
[log in to unmask]
Betreff: Re: [ISOGEOCHEM] "GC injected" signal not received by isodat

Hello Simon,

But now do the configuration without of any AS, but with GC and see the start Acquisition after click in the Start button on GC. If all will be OK, do the new Isodat configuration with AS and new method and Sequence.

Regards, Vladimir.
 

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На 8 мая 2018 г., в 14:23, Simon < [log in to unmask]> написал:п

Dear Vladimir!

 

It is the same for both autosamplers!

 

Simon


On 07.05.2018, at 23:42, Vladimir <
[log in to unmask]> wrote:
 

Hello Simon,

You wrote:

... but after the autosampler injected a sample and the GC switches from "ready to inject" to "initial temp" isodat is not starting to measure

Which Autosampler You mean  here? GC PAL?

Vladimir.
 

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На 7 мая 2018 г., в 15:12, Simon Leitner < [log in to unmask]> написал:п

Dear Heavy Users!
                 

                 

 

We have a Thermo Trace GC Ultra connected to a Delta V Advantage via GC Isolink and Conflo IV. The GC is equipped with two different autosamplers (VSP purge&trap, combi pal). A data transfer switch is used to change the communication from/to the GC with either one of the two samplers. The data aquisition is controlled/started via isodat 3.0. The system has been running since some weeks ago when I was changing from on-column injection by the VSP to PTV splittless injection by the combi pal (then i was also working on some errors with the PTV...)
                 

We now have the problem that isodat is not starting a "by device" run within a sequence. Isodat is as usually "waiting for AS trigger", but after the autosampler injected a sample and the GC switches from "ready to inject" to "initial temp" isodat is not starting to measure, executing the IRMS method respectively. While the previous steps of starting a run, waiting for "GC ready" and starting the injection by the autosampler is executed. 
                 

Since I was klicking through the isodat configurator unaware that I maybe changed something I loaded an isodat backup, but our problem stayed the same. 
                 

I should maybe add how the individual devices are connected to each other. The Isodat PC is connected via fiberline to the IRMS and the GC Isolink and by a COM cable to the GC. The GC is connected to the autosamplers via the "autosampler signals" plug-in and to the GC isolink and a second detector (Thermo ISQ) via the "generic handshake" plug-in (Y-cable). The connections are as they used to be when the measurement setup was running properly. 
                 

Does anyone has a clue why the GC start signal is not received by isodat or how I could check if the GC signal is sent to isodat. Or is there any advise what to do in general?
                 

Thanks a lot!
                 

                 

 

simon