COBAS C311 and E411: Integrating Roche Chemistry Into Your HIS

The Roche COBAS C311 and COBAS E411 are workhorses in clinical chemistry and immunoassay laboratories. The C311 handles routine chemistry panels—liver function, renal function, lipids, glucose, electrolytes—with throughput suited for mid-volume hospital labs. The E411 complements it with electrochemiluminescence immunoassay testing: thyroid panels, cardiac markers, tumor markers, and infectious disease serology.

Together, they cover the majority of a routine outpatient and inpatient chemistry menu. They are trusted instruments. Precise, reliable, and widely deployed.

And in the majority of the labs running them, their output is still being manually transcribed into the HIS by hand.

This post explains how to change that.

The Integration Challenge With COBAS Instruments

Roche's COBAS instruments are capable of outputting results via both RS-232 serial and TCP/IP, depending on the instrument generation and configuration. The C311 and E411 both support ASTM E1394 as the communication protocol for result output—a widely supported standard that LISBridge parses natively.

The integration challenge is not technical incompatibility. It is that setting up the communication channel correctly—choosing the right connection type, configuring the COBAS host settings, establishing the data path to the HIS—has historically required custom programming or vendor professional services. Labs without dedicated informatics staff often defer the integration indefinitely.

LISBridge removes that barrier. Because the C311 and E411 are in LISBridge's supported instrument library, the connection is a configuration step, not a development project.

What LISBridge Parses From the COBAS C311

The COBAS C311 outputs chemistry results in ASTM E1394 format. LISBridge receives and parses:

• Chemistry panels: ALT, AST, ALP, GGT, bilirubin (total and direct), albumin, total protein, urea, creatinine, uric acid, glucose, electrolytes (Na, K, Cl, CO₂)
• Lipid panel: Total cholesterol, HDL, LDL, triglycerides
• Other tests: CRP, iron, transferrin, ferritin, HbA1c (where configured)
• Reference ranges: Where included in the ASTM output
• Result flags: High, low, critical, repeat, and instrument-generated flags
• Sample and patient metadata: Sample ID, patient ID, accession number, run timestamp

Each result field is parsed individually and delivered as structured data to your HIS endpoint—not as a raw text string that requires downstream parsing, but as discrete, labeled values ready for clinical use.

What LISBridge Parses From the COBAS E411

The COBAS E411 outputs immunoassay results in ASTM format. LISBridge handles:

• Thyroid panel: TSH, Free T3, Free T4
• Cardiac markers: Troponin T, BNP (where configured)
• Tumor markers: PSA, CEA, AFP, CA 125, CA 19-9, CA 15-3, and others in the COBAS E411 menu
• Infectious disease: HBsAg, Anti-HBs, Anti-HCV, HIV Ag/Ab combo (where configured)
• Reproductive hormones: LH, FSH, E2, progesterone, testosterone, prolactin
• Anemia panel: Ferritin, B12, folate
• Flags and qualitative results: Reactive/Non-reactive designations, high/low flags, instrument alerts

The E411's qualitative outputs (reactive, non-reactive, indeterminate) are handled alongside numerical results, with the correct result type delivered to the HIS field that expects it.

You can review the full data parsing architecture at our data parsing solutions page.

Running Both Instruments Together

Most labs running the E411 also run at least one chemistry platform like the C311—the two instruments are designed to complement each other, and Roche markets them as a paired solution for clinical chemistry and immunoassay.

LISBridge connects to both simultaneously. Each instrument runs on its own connection—TCP/IP, RS-232, or both—and each delivers its results to the same HIS endpoint through the same middleware instance. From the HIS's perspective, a complete patient result set including both chemistry and immunoassay values arrives through a single integration point.

There is no separate configuration for each instrument type. No separate software license for chemistry vs. immunoassay. One LISBridge deployment handles the full COBAS stack.

The Workflow With LISBridge in Place

Before middleware, the COBAS integration workflow in most labs involves a technician reviewing results at the analyzer console and re-entering them into the LIS. For a lab running both C311 and E411 on a full shift, this can easily amount to 200–400 individual data entry actions—all performed by trained clinical staff who should be doing something more valuable with their time.

With LISBridge deployed, the workflow changes completely:

• Results flow from both instruments to the HIS automatically as each run completes
• Critical value flags trigger the configured alert pathway immediately—no lag between result generation and clinical notification
• Technicians review results in the HIS rather than at the instrument console, using the full LIS context (prior results, reference ranges, patient demographics) rather than the isolated instrument view
• Audit trails are generated automatically from the structured data log

LISBridge achieves greater than 99.9% data accuracy in deployed environments. The value that the COBAS analyzer produced is the value that appears in the patient record—unmodified, immediate, and traceable.

Learn how the full integration architecture connects your analyzers to your HIS at our laboratory integration overview.

How to Connect Your COBAS Instruments

Connecting the C311 or E411 to LISBridge requires configuring the instrument's host communication settings to enable ASTM output. This is done through the COBAS instrument software and typically takes less than 15 minutes per instrument. No Roche software licenses are required beyond standard instrument operation.

The connection steps:

1. Install LISBridge on the middleware workstation
2. In LISBridge, select COBAS C311 or COBAS E411 from the instrument library
3. Enter the instrument's IP address and configured port, or select the COM port for serial connections
4. Configure the HIS destination—HL7 endpoint, database, or file output
5. Enable Host Communication in the COBAS instrument settings
6. Run a test sample to confirm data flow

Total setup time: under 20 minutes for both instruments. No custom development. No professional services engagement.

FAQ

Does LISBridge support COBAS instruments beyond the C311 and E411?

Yes. LISBridge's COBAS parser is built to handle ASTM E1394 output from COBAS instruments generally, not only the C311 and E411. Other COBAS models that output standard ASTM are typically compatible. Contact us with your specific model to confirm.

Can LISBridge connect to COBAS via both RS-232 and TCP/IP?

Yes. Older COBAS configurations may use RS-232 serial output. Newer configurations and network-connected deployments use TCP/IP. LISBridge supports both simultaneously—if your C311 uses serial and your E411 uses TCP/IP, both connect to the same LISBridge instance without any additional configuration.

We use the Roche Data Manager (cobas IT 1000)—does LISBridge conflict with it?

LISBridge is designed as middleware between the instrument layer and the HIS layer. It is not a laboratory data management system and does not conflict with cobas IT 1000 in typical deployments. The specific integration architecture depends on your environment. Contact us to discuss your setup before deployment.

How does LISBridge handle COBAS result flags, particularly critical values?

LISBridge parses all flag fields present in the ASTM output, including high, low, critical, and instrument-specific flag codes. These are included in the structured data delivered to your HIS. Critical value notification workflows depend on your HIS configuration—LISBridge ensures the flag data arrives correctly; your HIS handles the escalation protocol.

Is any special configuration needed in the COBAS instrument to enable ASTM output?

Yes. The COBAS C311 and E411 need their Host Communication settings enabled and configured with the correct port and protocol settings. LISBridge provides setup guidance for this step. The configuration is done through the instrument's own software menu—no hardware changes are required.

Your COBAS Data Belongs in Your HIS—Automatically

The COBAS C311 and E411 are precise, reliable instruments. The manual transcription step between their output and your HIS is not. LISBridge eliminates that step—connecting both instruments to your HIS automatically, with greater than 99.9% accuracy, from a single middleware deployment that requires no custom programming and no ongoing IT maintenance.

Start your free trial — no credit card required. lisbridge.com/pricing