Service and diagnostics
5.2 Evaluating 7-segment display
PCU-Basesoftware (IM8)
82 Commissioning Manual, 03/2009, 6FC5397-1DP10-4BA0
5.2 Evaluating 7-segment display
Purpose
The 7-segment display is intended for initial diagnosis of the PCU 50.3 during operations
without a local OP (known as "Headless mode"). If an error is detected during booting, a
local display is needed for subsequent error analysis of the connection.
+ +
Figure 5-1 7-segment display with LEDs
The two displays have the following function:
● Segment display H1
Segment display H1 and the associated LED are assigned to the PCU basic software.
Status codes are output during system booting, normal operations and shutdown.
Compatibility in relation to the NCU modules is taken into account.
● Segment display H2
Segment display H2 and the associated LED are assigned to the application software.
Meaning of status codes
● During system power-up:
LED H1 LED H2 7-segment
display
Status
Orange Orange Output of BIOS
post codes
After switching on the system
Orange Off After cycling the BIOS
Orange Off After starting Windows
0 1 Start Windows Load device drivers needed for
the Windows start
0 2 PCU hardware
service
The PCU hardware service has
been started.
0 5 Network Wait for network interfaces to
be ready.
0 8 TCU support test
step 1
Wait for FTP server to start
0 9 TCU support test
step 2
Wait for boot server to start for
TCU network boot and for TCU
hardware service to start
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