130-0193

Review the complete message text

Read the full text displayed after 'INFO:' on the screen. This will indicate what system event or configuration change has occurred (e.g., 'Axis referencing completed', 'Touch probe calibrated', 'Machine parameter changed').

Most INFO messages are confirmation of successful operations - only investigate if the timing or content seems unexpected.

Acknowledge the message

Press the CE (Clear Error) key to dismiss the informational message. The control will return to normal operation immediately as this is not an error condition.

If the message reappears immediately after clearing, it indicates an ongoing process or a PLC-triggered repetitive notification.

Check system message log

Access MOD function, navigate to 'Service' menu, select 'Error Messages' or 'System Messages' to view the complete log with timestamps showing when this and previous messages occurred.

The log provides context by showing what operations preceded the message, helping identify if it's part of normal workflow.

Identify message source

Note the exact wording of the message. Generic TNC messages typically reference standard functions (axes, tools, probes), while machine-specific messages may reference hydraulics, pneumatics, conveyors, or maintenance intervals.

Messages containing machine model names, manufacturer-specific terminology, or maintenance counters are almost always PLC-generated custom notifications.

Consult machine documentation

Check the machine tool builder's operator manual or service documentation for a list of custom informational messages and their meanings. These are typically documented in a dedicated 'Control Messages' or 'PLC Messages' section.

If documentation is unavailable, contact the machine manufacturer with the exact message text - they maintain definitive lists of custom PLC messages.

Review PLC program if accessible

If you have access to PLCsoft or the PLC programming environment, search for 'WRITE STRING' or 'ERROR OUTPUT' commands containing the message text to understand what trigger condition generates this notification.

Only modify PLC programs if you have proper authorization and backups - changes can affect machine safety functions.

Check triggering conditions

Observe what machine operations or conditions precede the message appearance. This helps identify the monitoring logic (e.g., message appears after tool changes, during homing, or when a limit switch activates).

For maintenance-related messages, check if the message coincides with specific operation hour counters or cycle counts in the PLC.

Verify the notification content

Check if the message references USB, network drives, or storage devices (e.g., 'USB device connected', 'Network drive mounted', 'Drive TNC:\ available'). These are standard notifications when storage device status changes.

The control automatically scans for new storage devices every few seconds when in file management mode.

Clear the message

Press CE to acknowledge. If you're actively using file management (PGM MGT key), these messages are expected behavior when connecting or removing storage devices.

To avoid repeated messages, connect/disconnect USB devices only when not actively in file management menus.

Check device accessibility

Press PGM MGT (Program Management) key and verify that the expected drives appear in the directory tree. If a message indicated device connection but drive doesn't appear, the device may have formatting or compatibility issues.

Heidenhain controls support FAT32 and NTFS formatting for USB devices; exFAT may have limited support depending on software version.

Correlate with recent operations

Recall what function or operation was just performed. If you accessed help (HELP key), changed probe settings, or modified kinematics, the message likely confirms that operation completed successfully.

Informational messages following deliberate user actions are confirmations - simply acknowledge and continue operation.