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NCK commissioning switch
Figure 4-5
Switch position
Note
Switch position when booting the service system
When booting the service system, it is not permissible that the rotary switch is in the "0" position,
as in the "0" position, the NCU always boots from the integrated memory and from the SD Card.
PLC mode switch
RUN
STOP Places the PLC in the STOP operating state.
MRE
S
Figure 4-6
NCU 1750
Equipment Manual, 10/2023, A5E45627807B AH
NCK commissioning switch
NC operating mode
0
NCK normal run-up, setting in normal operation
1
General reset (NCK run-up with default values)
2
NCK runs up with the data that was saved at the last shutdown.
7
Debug mode (NCK is not started); the SSH port tcp/22 is open at X130
8
IP address for X130 of the NCU appears on the 7-segment display; the NCK is not
started; the PLC remains at STOP
9
SSH port tcp/22 is open at X130 (without any entry in basesys.ini file)
All others
Not relevant
Places the PLC in the RUN operating state. Setting in normal operation.
Triggers a general reset of the PLC.
PLC mode switch
4.4 Operator control and display elements
Description
41
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