Copying And Editing Pc Data - Siemens SINUMERIK 840C Installation Instructions Manual

4 MMC Area Diagnosis

4.4.1 Copying and editing PC data

Keyswitch
If the keyswitch is in position 3 when the system starts up, the control takes its
data from the SIEMENS branch. All user data are password protected.
A case where this is necessary is, for example, after a system failure if the confi-
guration files are wrongly parameterized.
Note This does no apply to the CONFIG file in the directory Master Control.
If the PLC is in the stop state, it cannot read the input image of the machine con-
trol panel. In this case, the position of the keyswitch is not evaluated on start-up.
Keyswitch position 3 is set internally on PLC stop.
4.4.1 Copying and editing PC data
Selection Pressing the softkeys DIAGNOSIS, START-UP and PC DATA will take you into
the basic display for PC data.
Fig. 4.11
The control is supplied with system data from the directories MASTER CON-
TROL and OPERATION:
The upper part of the basic display is the SIEMENS branch, containing the initial
system settings. This data is protected and cannot be changed.
Press the softkey PRESET to copy files from the SIEMENS branch to the USER
branch.
PRESET
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SINUMERIK 840C (IA)