Handling Of Machine Data; Data Saving - Siemens SINUMERIK 802C base line Technical Manual

Start-Up
Range of values (minimum and maximum values)
4.1.3

Handling of machine data

Handling methods
Aborting when loading MD
4.1.4

Data saving

Internal data saving The data in the memory backed up for a limited period can be saved internally
4-4
... 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 "***".
Display
z
Input via keys and V24 interface
z
Making backup copies and reading in/reading out data via the V24
z
interface
These back-up copies contain
 machine data
 line check sums and
 machine data numbers.
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.
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
SINUMERIK 802C base line
Start-Up