Siemens CPU 1512SP-1 PN - Interrupts, error messages, diagnostics and system alarms; Status and error display of the CPU

Interrupts, error messages, diagnostics and system
alarms
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The status and error displays of the CPU1512SP‑1PN are described below.
You will find additional information on "Interrupts" in the STEP7 online help.
You can find additional information on the topics of "Diagnostics" and "System alarms" in the
Diagnostics (https://support.automation.siemens.com/WW/view/en/59192926) function
manual.
5.1 Status and error display of the CPU
LED displays
The figure below shows the LED displays of the CPU1512SP‑1PN and the BA2xRJ45
BusAdapter.





① RUN/STOP LED (green/yellow LED)
② ERROR LED (red LED)
③ MAINT LED (yellow LED)
④ LINKRX/TX-LED for the ports X1P1 and X1P2 (green LEDs on the BusAdapter)
⑤ POWER LED (green LED)
⑥ LINK RX/TX LED for port X1P3 (green LED on the CPU)
Figure 5-1LED displays on the CPU and BusAdapter
Meaning of the POWER, RUN/STOP, ERROR and MAINT LEDs
CPU1512SP‑1PN features an LED for monitoring the supply voltage of the electronics (PWR)
and three LEDs for displaying the current operating and diagnostics status. The following
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CPU 1512SP-1 PN (6ES7512-1DM03-0AB0)
Equipment Manual, 11/2022, A5E33591411-AE