Error messages, 6 error messages – HEIDENHAIN TNC 306 Technical Manual User Manual
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TNC 406/TNC 306
6 Display and operation 4
4-85
6.6 Error messages
Under certain conditions error messages from the NC or the PLC will be displayed on the screen
under the display for the operating mode. Non-flashing error messages can be canceled with the CE-
key. In the event of a flashing error message the machine must be switched off and the fault
corrected. If a non-flashing error message is displayed on the screen, marker M2190 will be set.
The machine manufacturer determines the conditions under which the PLC will produce error
messages. Up to 200 different PLC error messages can be generated.
The dialogs for PLC error messages can be determined by the manufacturer of the machine. Please
contact HEIDENHAIN about this. The standard version has dialogs with the reserved designations
"PLC: ERROR 0" to "PLC: ERROR 99". These PLC error messages can be activated by the PLC-
markers M2924 to M3123.
The error messages can be canceled either by pressing the CE-key or by resetting the appropriate
markers.
If several PLC error messages are activated simultaneously, they can be displayed in turn by
pressing the CE key. Then the next PLC error message activated by the lowest marker is displayed.
If the program run is to be stopped on output of a PLC error message, this must be explicitly
programmed in the PLC-program (NC STOP).
In order to show a PLC error message as a flashing message, the marker M2815 must also be set.
If marker M2815 is set, but none of the 200 PLC error messages is activated, then the flashing error
message "EMERGENCY STOP PLC" will be displayed.
Set
Reset
M2815
Flashing PLC error message
PLC
PLC
M2190
Non-flashing error message
NC
NC
is displayed
M2924
PLC error message 0 (reserved to RS-422
1)
)
PLC
PLC
M2925
PLC error message 1 (reserved to RS-422
1)
)
M2926
PLC error message 2 (reserved to RS-422
1)
)
M2927
PLC error message 3 (reserved to RS-422
1)
)
M2928
PLC error message 4 (reserved to RS-422
1)
)
.
.
.
.
M3122
PLC error message 198
M3123
PLC error message 199
1)
only TNC 406