231-C027

Check HSCI cable connections

Verify all HSCI cables are securely connected at both TNC control and HSCI station ends. Check X116/X117 connectors on CC/MC unit.

Power down system before checking connections to prevent damage

Inspect cable integrity

Examine HSCI cables for physical damage, kinks, or wear. Test cable continuity with multimeter if damage suspected.

HSCI cables are sensitive to EMI - ensure proper shielding and routing away from power cables

Test with known good cable

Replace suspected HSCI cable with verified working cable to isolate connection issues.

Keep spare HSCI cables in service kit - they're common failure points

Identify failing HSCI station

Access MOD function, select 'System Info' and check HSCI station status display to identify which station is not responding.

Station addresses are typically configured in MP7200-MP7299 range

Check HSCI station power supply

Verify +5V and +24V power supply to the failing HSCI station. Measure voltages at station power input terminals.

Use proper ESD precautions when working near electronic modules

Reset HSCI station

Power cycle the specific HSCI station or perform hardware reset if available. Monitor for restoration of communication.

Some HSCI stations have diagnostic LEDs - check manual for LED status meanings

Replace HSCI station module

If station remains unresponsive, replace the HSCI station hardware module with known good unit.

Record all parameter settings before module replacement

Access MC diagnostic functions

Enter MOD function, navigate to 'System Info' > 'MC Status' to examine Motion Controller message queue status and error logs.

Look for message buffer overflow or invalid message type errors

Clear MC message buffers

Execute MC message buffer reset through MOD > 'System' > 'Clear MC Messages' or perform controlled restart of MC system.

Clearing MC buffers will interrupt all active machining operations

Reload HSCI configuration

Reload machine parameters MP7200-MP7299 (HSCI configuration) from backup or reconfigure HSCI station assignments.

Always backup current parameters before making changes using MOD > 'System' > 'Parameter Backup'

Verify MC firmware version

Check MC firmware version compatibility with TNC software version. Update MC firmware if version mismatch detected.

MC firmware version should match or be compatible with TNC software build number

Check HSCI timeout parameters

Access MOD > 'Machine Parameters' and verify MP7210 (HSCI message timeout) is set appropriately, typically 100-500ms depending on system configuration.

Slower systems or long cable runs may require longer timeout values

Verify message retry settings

Check MP7211 (HSCI message retry count) - should be set to 3-5 retries for robust communication in industrial environments.

Too few retries cause premature alarm triggering, too many cause system sluggishness

Adjust HSCI cycle time

Review MP7212 (HSCI cycle time) setting - ensure adequate time allocated for all HSCI stations to respond within cycle.

Cycle time too short can overload slower HSCI stations