Evaluation Of The Diagnostic Displays H1/H2 - Siemens SINUMERIK 840DE sl Commissioning Manual

Service and diagnostics

7.2 Evaluation of the diagnostic displays H1/H2

7.2 Evaluation of the diagnostic displays H1/H2
The PCU 50.5 has the diagnostics displays "H1" and "H2", which output status codes by means
of LEDs and 7-segment displays. In particular, these simplify the diagnostics of the PCU 50.5
in headless mode (without a screen or input devices).
If an error is found, you can connect a screen for further error analysis.
Figure 7-1
The diagnostics displays display the following information:
● The diagnostics display "H1" displays status codes of the PCU-Basesoftware.
● The diagnostics display "H2" is assigned to the application software.
The meaning of the displayed status codes depends on whether the PCU 50.5 is in system
startup (Page 156) mode, running mode (Page 156), or shutdown (Page 156) mode.
Further information
Additional information on the diagnostics display, e.g. the meaning of the BIOS POST codes,
can be found in the Manual SINUMERIK 840D sl Operator Components and Networking.
Table 7-1
LED H1
Orange
Orange
Orange
156
Diagnostics displays H1 and H2 of the PCU 50.5 with LEDs and 7-segment displays
Status codes of the diagnostics display during the system power up
LED H2 7-segment
display H1/H2
Orange Output of the
BIOS post co‐
des
Off
Off
1
2
5
8
9
A
B
E
Status
After switching on the system
After cycling the BIOS
After starting Windows
0 Starting Windows
0 PCU hardware service
0 Network
0 TCU support test step 1 Wait for FTP server to start
0 TCU support test step 2 Wait for TCU network boot proc‐
0 TCU support test step 3 Wait for VNC server to start
0 -
0 PCU-Basesoftware
Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1
Loading of the device drivers
required by Windows
The PCU hardware service has
been started.
Wait for network interfaces to
be ready
ess and starting of the TCU
hardware service
-
General fault: see Windows
"Event Viewer"
PCU Base Software (IM10)