HEIDENHAIN ITNC 530 - For Error Diagnosis

July 2010 10 – 111
10.5 For Error Diagnosis
10.5.1 Triggering on error marker
With the integrated oscilloscope you can record the following error markers (defined by
HEIDENHAIN):
 M 4177 (erasable error message)
 M 4178 (error message that causes an external EMERGENCY STOP)
The advantage of this method is that the integrated oscilloscope, which is started at any point in
time, continuously makes recordings, until an error message is issued on the machine.
The behavior of the selected signals shortly before the error event takes place can be examined
at a later time.
Figure: 75 % triggering on error marker M 4178, channel 6
Note
It is also possible to trigger on the error markers defined by the OEM that are documented
in the PLC error table (e.g., M4812).