Siemens SINUMERIK 840Di Diagnostic Manual page 253

11/2006
14766 NCU link is heavily loaded, impending memory shortage
Definitions: Informational alarm for NC program developer.
The capacity of the NCU link is not large enough to transfer all the data. This non-cyclic data includes
link variable assignments, machine data write operations, values for container switches and setting
data write operations.
This type of data is buffered and is not lost. The buffer memory is now 70% full.
Reaction: Alarm display.
Warning display.
Remedy: The timing of cyclic data should not be distorted in the NC program.
Program Clear alarm with the Delete key or NC START.
Continuation:
14767 Machine data matching via NCU link not complete
Definitions: A non-released option has been used in the block.
Reaction: NC not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Change less setting or machine data at the same time.
Program Switch control OFF - ON.
Continuation:
14768 Axial auxiliary function for the NCU link cannot be output
Definitions: Informational alarm for the part program developer.
An axial auxiliary function transmitted via an NCU link cannot be output as the transmission buffer for
the
PLC is filled up to 100%.
Reaction: Alarm display.
Warning display.
Remedy: In the part program, cyclic data - in this case the output of auxiliary functions for link axes on the
interpolating NCU - should be separated with regard to the time.
Program Clear alarm with the Delete key or NC START.
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
NCK alarms
2-253