Interrupts, Diagnostics, Error, And System Messages; Status And Error Display Of The Cpu - Siemens SIMATIC S7-1500 Manual

Interrupts, diagnostics, error, and system messages

The status and error displays of the CPU 1511-1 PN are described below.
You will find additional information on "Interrupts" in the STEP 7 online help.
You will find additional information on "Diagnostics" and "System messages"
in the System diagnostics (http://support.automation.siemens.com/WW/view/en/59192926)
function manual.
4.1

Status and error display of the CPU

LED display
The figure below shows the CPU 1511-1 PN LEDs.
①
②
③
④
⑤
Figure 4-1
CPU 1511-1 PN (6ES7511-1AK00-0AB0)
Manual, 01/2013, A5E31264526-AA
RUN/STOP LED (yellow/green LED)
ERROR LED (red LED)
MAINT LED (yellow LED)
LINK RX/TX-LED for X1 P1 port (yellow/green LED)
LINK RX/TX-LED for X1 P2 port (yellow/green LED)
CPU 1511-1 PN LEDs (without front panel)
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