Siemens SINUMERIK 840Di sl Function Manual page 142

3 Setting up functions
3.4 Fault services
Field
Name
Remaining memory for the
PLC trace configuration
Remaining memory for the
PLC trace data
Icons
Recording
Recording time
Recording
Pretrigger
Remaining performance
Configure PLC settings
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Content
Name of the PLC trace: Can be entered
by the user. If the field remains empty, or
the designation is deleted, ePS will enter
the designation: Execute and upload PLC
trace.
Displays the remaining memory in the DB
for addressing variables in the PLC.
Shows the remaining memory in the DB of
the PLC for recording the variables
status. The memory requirement is
directly related to the number of cycles to
be recorded.
Note:
If the remaining memory is insufficient for
the current definition of a trace, you can
save the control monitor inactively in the
system. To make it possible to activate it,
you must free up memory by deactivating
one or more of the control monitors.
Shows the PLC variables with absolute
addresses (not symbolic addresses),
which are to be recorded in the trace, or
for which additional programming can be
carried out.
Note:
The PLC variables to be recorded are
selected in the same way as PLC
triggers/conditions.
(See Section 3.4.5 "Machine trigger on
PLC variable".)
Configured recording time, with the
specified number of PLC cycles for the
entire recording and the specified number
of cycles from the time prior to the trigger
event that are to remain recorded
Entry for the number of cycles for the pre-
trigger, used to determine the number of
cycles before the trigger event to be
recorded
Indicates how much of the remaining
performance in the PLC cycle time is
required for PLC triggers and PLC
conditions (see function settings for
performance).
Since data blocks must be used in the
PLC for the configuration of PLC traces,
ePS Network Services, Function Manual (FH) - Release 12/2008
Type
DISPLAY
INPUT
(Max. 40
characters; any
character
permissible)
DISPLAY
DISPLAY
TAB DISPLAY
INPUT
S7 syntax
S7 formats
(Max. 40
characters for
naming; any
character
permissible)
TAB DISPLAY
INPUT
(Digits from 1 to
9999 for the total
number of cycles,
0 also permissible
for pre-trigger)
TAB DISPLAY
INPUT
(Digits from 0 to
9999)
DISPLAY
ACTION
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12/2008