Siemens SINUMERIK 840D sl Series Diagnostics Manual page 233

08/2005
polation cycle. Assignment operations which are not transferred are stored in a buffer
memory. This buffer is full!
All value assignments are combined in the next main run block and performed immedi-
ately this block is executed.
A main run block is the block at which you would stop in single block mode SLB1.
Examples: Blocks with a real traversing movement (G0 X100), Stopre, G4, WAITM,
WAITE,...
Link variable scanning operations are not affected (e.g.: R100= $a_dld[16])
Reactions: - NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Insert main run blocks which require a sufficient number of interpolation cycles for execu-
tion (e.g. G4 F10) between the assignments. A block with an additional preprocessor stop
does not improve the situation! See also $A_LINK_TRANS_RATE, for a variable which
you can test before an assignment.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
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 con-
tainer switches and setting data write operations.
This type of data is buffered and is not lost. The buffer memory is now 70% full.
Reactions: - Alarm display.
- Warning display.
Remedy: The timing of cyclic data should not be distorted in the NC program.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
14767
Machine data matching via NCU link not complete
Definitions: A non-released option has been used in the block.
Reactions: - 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 Con- Switch control OFF - ON.
tinuation:
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 transmis-
sion buffer for the
PLC is filled up to 100%.
Reactions: - 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.
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
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