
axismd.ai
Heidenhain Controller
Communication · Intermediate · 30-120 minutes
HEIDENHAIN 235-009D - Device not configured in the HSCI chain
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.
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
Causes and Fixes
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
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
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
Perform System Restart
Execute a complete system restart to reinitialize the HSCI chain with the new configuration settings.
Call a technician if:
Prevention
Common Mistakes
Seeing Multiple Alarms?
Seeing another alarm with this one? Enter the code.
AxisMD logs alarms against your actual machines, tracks patterns, and gives AI context your manual doesn't have.
Start freeWas this guide helpful?
Always verify with your machine manual or a certified technician before performing service procedures.