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Instrument failure A7890 with ALS error code 551 - WKB106799

Article number: 106799

SYMPTOMS

  • Empower message center shows "Instrument failure A7890#SystemUniqueName"
  • ALS error code 551
  • 29: GC refused to do an injection

ENVIRONMENT

  • Agilent Instrument Control Framework v3.0 and above
  • Agilent 7890 GC
  • Agilent 6890 GC
  • Agilent 6850 GC

CAUSE

This error is issued whenever an ALS device does not respond to a data communication command. For a 7890, this includes the G3430 controller board.

FIX or WORKAROUND

  1. Restart the GC.
  2. Ensure that the ALS tower shows ready in GREEN.

ADDITIONAL INFORMATION

 

id106799, 6890A/+GC, 6890N GC, 7890 GC, 7890 GCDET, 7890BGC, comms

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