GC6890 No connection RS-232


I am trying to connect a HP6890 autosampler with GC chromatograph to a PC using the serial command port (RS232). I have hooked up the GC autosampler controller with a serial cable and then tried to connect and control the machine usinh HyperTerminal. However, I do not get any feedback from the machine whatsoever. 

Do you know what I am doing wrong?


  • Hello  ,

    I’m sorry for the delayed reply to your message.  Do you still need assistance with this? If you do, please take into consideration the notes below. However, if the issue was resolved, could you
    please share what the resolution was?

    Can you provide a bit more details on this? A non-exhaustive list of things we'd need to know is below:

    - 6890 model - Is it 6890A, 6890 Plus, 6890N?

    - Type of PC you are using.

    - GC Autosampler type.

    - Autosampler controller type.

    - If available, a photo of the command port and cable for reference.

    We might need other information too, but this is a good start.

  • Hi! 

    I still need help yes, please! 

    - On the machines (GC system and Injector) it just says HP6890 (see photos attached)

    - The PC we employ is an old Windows XP running one, that was used to run the GC-FID before we want to control it with the serial port (see photos attached).

    - The autosampler controller is a G1512A (CN00005283).

    I attached photos of everything.

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