Heidenhain codes
HeidenhainCommunicationIntermediate30-120 minutes

235-009D

HEIDENHAIN 235-009D - Device not configured in the HSCI chain

Device not configured in the HSCI chain

Devices are present in the HSCI chain that are not configured. The hardware setup includes extra components not defined in the configuration.

Root Cause Summary

HEIDENHAIN alarm 235-009D occurs when the TNC control detects a physical device connected to the HSCI (High Speed Control Interface) chain that is not properly configured in the system's hardware configuration. This typically happens when hardware expansion options are incorrectly set or unauthorized devices are connected to the HSCI bus.

Safety

  • Refer to Heidenhain service manual
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    Access Hardware Configuration

    Navigate to MOD > System > Configuration > Hardware and check the current HSCI device configuration against physically connected devices.

    Document the current configuration before making changes

  2. 2

    Verify HSCI Address Settings

    Check that each HSCI device has unique addresses (typically 0-15) and verify the CfgHSCIDevice parameters match the physical setup.

    Never assign duplicate HSCI addresses as this will cause communication failures

  3. 3

    Update Hardware Expansion Options

    Modify the CfgHardwareExpansion settings to include all connected HSCI devices with correct type definitions and serial numbers.

    Use the automatic device detection feature if available in your TNC version

  4. 4

    Perform System Restart

    Execute a complete system restart to reinitialize the HSCI chain with the new configuration settings.

DIY Feasiblehigh confidence

Call a technician if:

  • ·Hardware replacement required
  • ·Multiple HSCI devices failing
  • ·Configuration backup unavailable

Prevention

  • Regular configuration backups
  • Document all HSCI modifications
  • Verify hardware before connecting to HSCI chain

Common Mistakes

  • Connecting devices without configuration updates
  • Duplicate HSCI address assignment
  • Ignoring serial number requirements

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Always verify with your machine manual or a certified technician before performing service procedures.