HEIDENHAIN Alarm and Event Sources

HEIDENHAIN Alarm and Message handling produces alarm events. The AlarmEventSourceInfo object is used to handle these alarms and events. The declaration is located in the device file.

Messages are not acknowledged by the HumanOS Plugin. Typically, this is done by the HEIDENHAIN system using the RESET button.

Alarm Source Addresses

The Heidenhain Control Driver supports CNC/NC/PLC Alarms. The Address for the alarms is following:

Address	Description	Data Type
Nc{x}.NcAlarmEvent:0	System Alarm and operator message reader.	TAlarmEvent[]

An Alarm contains following fields:

Field Name	Description	Data Type
SourceName	Can be unknown or: DNC_EG_NONE = 0 DNC_EG_OPERATING = 1 DNC_EG_PROGRAMING = 2 DNC_EG_PLC = 3 DNC_EG_GENERAL = 4 DNC_EG_REMOTE = 5 DNC_EG_PYTHON = 6	System.String
AlarmType	Can be unknown or: DNC_EC_NONE = 0 DNC_EC_WARNING = 1 DNC_EC_FEEDHOLD = 2 DNC_EC_PROGRAMHOLD = 3 DNC_EC_PROGRAMABORT = 4 DNC_EC_EMERGENCY_STOP = 5 DNC_EC_RESET = 6 DNC_EC_INFO = 7 DNC_EC_ERROR = 8 DNC_EC_NOTE = 9	System.String
ConditionName	Alarm with its corresponding number	System.String
Message	Message content	System.String
Occurrence	Date and Time of the appearance	System.String

By default, all errors with the following DNC ErrorClass will set the emergency state flag:

• DNC_EC_EMERGENCY_STOP
• DNC_EC_RESET

And all errors with the following DNC ErrorClass will set the alarm state flag:

• DNC_EC_NONE
• DNC_EC_FEEDHOLD
• DNC_EC_PROGRAMHOLD
• DNC_EC_PROGRAMABORT