Siemens SINUMERIK ONE NCU 1740 - Start-Up and Mode Selector Switch

7-segment display Meaning
04 Before loading the kernel
05 Before starting the kernel
Booting the basic system
7-segment display Meaning
1 Basic initializations
2 Cleaning up and preparing the 󹪝le system
3 The name is set and the loopback interface con󹪝gured.
4 Starting the system logging
Starting the CFS class 1, provide the network interfaces.
5 Initializing the network interfaces and the 󹪝rewall
6 Starting the time server (ntpd)
7 Starting the SSH server (generate a host key if one is still not available).
8 Starting the FTP server
9 Starting the TCU services (TFTP, VNC)
P Partitioned: The system performs a partitioning operation.
NRK/NCK power up
7-segment display Meaning
1 Not applicable.
2 Not applicable.
3 Debugger was initialized.
4 NRK operating system was successfully activated.
5 NRK operating system has booted, init task is being processed (→ the appli‐
cation boots).
1 or 2 SD card and NVRAM data do not match. To resolve this problem, a general
reset is required by booting with switch position 1 or 2.
Operation
7-segment display Meaning
6. with 󹪞ashing point: The control is in cyclic operation and the cycles are active.
4.4.4 Start-up and mode selector switch
The NCU is equipped with an NCK rotary coding switch and a PLC mode selector switch in the
form of a toggle switch with three settings:
Description
4.4 Operator control and display elements
NCU 1740
38 Equipment Manual, 10/2021, A5E51087503B AA