Siemens Simatic S7-1500R - Interrupts, Diagnostics, Error Messages and System Events; Meaning of the RUN;STOP, ERROR and MAINT LEDs

Interrupts, diagnostics, error messages and system events
4.1 Status and error display of the CPU
CPU 1513R-1 PN (6ES7513-1RL00-0AB0)
Equipment Manual, 05/2021, A5E42009333-AC
31
The following table shows the meaning of the various color combinations for the RUN/STOP,
ERROR and MAINT LEDs.
Table 4- 1 Meaning of the LEDs
RUN/STOP LED
ERROR LED
MAINT LED
Meaning
LED off
LED off
LED off
Missing or insufficient supply voltage on the CPU.
LED flashes
yellow/green
LED flashes red LED flashes yellow
Startup (CPU booting)
Test of LEDs during startup, inserting a module.
LED flashing test
LED lit yellow
LED off
LED lit yellow
CPU is in operating state STOP.
Completion of system initialization
LED flashes yellow
LED off
LED lit yellow
CPU executes internal activities in an operating
state ≠ RUN-Redundant.
LED lit yellow
LED flashes red LED flashes yellow
CPU defective
Firmware update using SIMATIC Memory Card has
failed.
LED lit yellow
LED off
LED flashes yellow
Firmware update successfully completed.
LED flashes
yellow/green
LED off LED lit yellow
The primary CPU is in operating state STARTUP.
The backup CPU is in operating state SYNCUP.
The backup CPU has not yet been restarted for
SYNCUP during this phase.
LED flashes yellow
LED off
LED off
The CPU performs a warm restart.
LED lit green LED off LED lit yellow
Maintenance demanded for the plant.
You need to check/replace the affected hardware
within a short period of time.
The primary CPU is in the RUN or RUN-Syncup
operating state.
Active Force job
LED lit green
LED off
LED off
The CPU is in operating state RUN-Redundant.
There are no events, requirements, errors, etc.
LED lit green
LED flashes red
LED off
A diagnostic event is pending in operating state
RUN-Redundant.
LED lit green
LED flashes red
LED lit yellow
A diagnostic event (e.g. failure of an IO device
within the PROFINET ring or no access to SIMATIC
memory card possible
1)
) and maintenance is de-
manded (e.g. interruption of the PROFINET ring).
1)
If there is not enough storage space on a SIMATIC Memory Card or on both SIMATIC Memory Cards in RUN-Redundant,
the write function is aborted, and the redundant system continues operation with the original configuration. The redun-
dant system will remain in the RUN-Redundant system state.