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Waters

Intermittent communications issues with instruments - WKB45401

Article number: 45401

SYMPTOMS

  • The QDa had intermittent communication issues with Empower during overnight runs
  • The QDa had to be restarted to resume communications
  • QDa communication issues appeared to stop, but then the ACQUITY Column Manager had similar issues
  • Intermittent losses of communication with LCMS system

ENVIRONMENT

  • Empower 3
  • UNIFI 1.9.3 Workstation
  • Xevo G2-XS
  • ACQUITY UPLC I-Class

CAUSE

The computer had the power-saving mode set to turn off the hard drive after 30 minutes of inactivity.

FIX or WORKAROUND

In Windows Power Options, change the hard disk power-saving mode to never turn off the drive.

ADDITIONAL INFORMATION

Waters-built PCs are set, by default, to the Waters power plan under Control Panel\All Control Panel Items\Power Options. Customer-provided PCs may instead be using other power plans (e.g., Balanced) in which the advanced power settings are configured incorrectly.

comms, EMP2LIC, EMP2OPT, EMP2SW, EMP3GC, EMP3LIC, EMP3OPT, EMP3SW, EMPGC, EMPGPC, EMPLIC, EMPOWER2, EMPOWER3, EMPSW, SUP

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