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Heidenhain Controller
Communication · Intermediate · 30-120 minutes
HEIDENHAIN 231-8010 - 8010 LSV2 transmission error
The 231-8010 alarm is triggered when the TNC's LSV2 protocol handler detects communication errors during data exchange with external devices. This is most commonly caused by physical network infrastructure issues, configuration mismatches, or software compatibility problems between the TNC and the connected LSV2 client device. The LSV2 protocol is sensitive to packet integrity and timing, so any interruption in the communication path will trigger this fault.
231-8010
HEIDENHAIN 231-8010 - 8010 LSV2 transmission error
8010 LSV2 transmission error
This TNC 640 error indicates an internal control fault. The issue relates to Error in data transfer by LSV2 protocol.
Root Cause Summary
The 231-8010 alarm is triggered when the TNC's LSV2 protocol handler detects communication errors during data exchange with external devices. This is most commonly caused by physical network infrastructure issues, configuration mismatches, or software compatibility problems between the TNC and the connected LSV2 client device. The LSV2 protocol is sensitive to packet integrity and timing, so any interruption in the communication path will trigger this fault.
Safety
- Refer to Heidenhain service manual
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Inspect Ethernet Cable
Physically inspect the Ethernet cable connected to the TNC's RJ45 port (typically labeled 'Ethernet' or 'LSV2'). Look for kinks, cuts, or damaged connectors. Ensure cable is properly shielded and rated for industrial environments.
Always use shielded CAT5e or higher cables in machine shop environments. Standard office-grade cables often lack adequate EMI protection near motor drives and inverters.
- 2
Verify Cable Seating
Disconnect and reconnect both ends of the Ethernet cable. Ensure the RJ45 connector clicks firmly into place on both the TNC and the PC/switch. Check that the link LED on the TNC Ethernet port illuminates (typically green when connected).
Power down the TNC before repeatedly connecting/disconnecting cables to avoid potential port damage from hot-plugging.
- 3
Substitute Known-Good Cable
Replace the existing cable with a verified working shielded Ethernet cable. Test LSV2 communication again using TNCremo or your LSV2 client application.
Keep a dedicated test cable (3-5 meters, shielded, verified good) in your service kit specifically for TNC network diagnostics.
Call a technician if:
- ·Network infrastructure changes required
- ·TNC hardware replacement needed
- ·Multiple simultaneous communication alarms
Prevention
- Use industrial-grade Ethernet components
- Implement regular network cable inspections
- Monitor TNC system resources during peak operations
- Maintain updated LSV2 client software versions
Common Mistakes
- Using consumer-grade network switches in industrial environments
- Attempting multiple simultaneous LSV2 connections
- Ignoring EMI shielding on Ethernet cables
- Changing network parameters during active machining operations
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Always verify with your machine manual or a certified technician before performing service procedures.