Start-Up
4-4
SINUMERIK 802C base line
Start-Up
Range of values (minimum and maximum values)
... specifies the input limits. If no range of values is specified, then the input
limits are defined by the data type, and the field is marked with “***“.
4.1.3 Handling of machine data
Handling methods
z
Display
z
Input via keys and V24 interface
z
Making backup copies and reading in/reading out data via the V24
interface
These back-up copies contain
machine data
line check sums and
machine data numbers.
Aborting when
loading MD
If incorrect machine data files are read into the control system, an alarm is
output.
At the end of reading, an alarm with the number of errors is displayed.
4.1.4 Data saving
Internal data
saving
The data in the memory backed up for a limited period can be saved internally
in the
permanent memory of the control system.
An internal data backup should be carried out if the control system has been
switched off for more than 50 hours (at least 10 min/day with controller ON).
It is recommended to carry out internal data saving whenever important data
changes have been made.
Notice
During the internal data backup, a memory copy of the memory backed up for
a limited time is made and stored in the permanent memory. Selective data
backup (e.g. only the machine data and not the part programs) is not possible.
Saving data internally:
Use the ETC key to extend the menu in the Diagnosis/Start–up menu and
press the Save data softkey.
Loading data from an internal data backup:
Boot the control system using the start–up switch, position 3
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