HumaStar 600 ‐ Summary

✅ Summary of Required Actions for Interface Development

1. Communication Setup (Serial, ASTM E1381):

• Configure RS-232 settings:

  • Baud rate: 38400
  • Parity: Odd
  • Timeouts: 3000ms for query and retry, 100ms between messages

• Ensure analyzer is set to Host Query Mode for automation:

  • Auto send results = Enabled
  • Auto request tests = Enabled
  • Only order by LIS = Enabled

2. Implement ASTM Message Handling (ASTM E1394): You must handle the following message types:

• H – Header
• P – Patient Information
• O – Order
• R – Result
• Q – Query
• L – Terminator

Ensure your message parser and builder in ResponseHandler and LISCommunicator are structured to send and receive:

• Order queries (e.g., when a new barcode is scanned)
• Result transmissions (after result acceptance)
• Optional: Dilution Factor and QC results if needed

3. Sample Lifecycle in Host Query Mode:

• Analyzer sends a Q-record query for a sample.
• LIS replies with P + O records (patient + order).
• Analyzer runs test → sends back P + O + R + L messages (result).
• System must correctly respond to {ENQ}, {ACK}, {EOT}, {STX}, {ETX}, etc.

4. Message Construction Details:

• ^^^TESTID format required in O and R records.
• Use consistent timestamp format: YYYYMMDDHHMMSS.
• Confirm that specimen descriptor values are mapped (Serum, Plasma, etc.).
• Use correct ASTM checksum calculation and block framing (important for hardware protocol).

5. Analyzer Software Settings:

• Activate LIMS under: Maintenance > Parameters > Software > LIMS.

• Enable settings:

  • Auto send results
  • Auto request tests
  • Only order by LIMS
  • Apply method limits

• Leave QC/calibrator options disabled unless needed.

6. Testing & Troubleshooting:

• Use “LIMS > Communication” window on the analyzer to view live data flow.
• Use “LIMS > Save debug info” to access ErrorsLog.txt.
• Use “Purge” to reset LIS communications.

7. Optional Features (for future stages):

• Send Dilution Factor
• Query samples at rack positions
• Send individual result
• Handle batch and legacy modes (not recommended for new systems)