LED Description Colour Status Meaning
DIAG Diagnostics Yellow ON Configuration error
BLINKING Not applicable
OFF No configuration error
RUN Run mode indi-
cator
Green ON Safety CPU is in RUN (Safety) mode. The
application program is executed.
BLINKING Not applicable
OFF Safety CPU is in DEBUG STOP mode. The
application program is not executed.
Yellow ON Safety CPU is in DEBUG RUN (Non-safety)
mode. The application program is executed.
BLINKING Firmware, boot project or boot code update
indication
OFF Safety CPU is in DEBUG STOP mode. The
application program is not executed.
I-ERR Internal device
error indicator
Red ON Internal device error leading to a SAFE STOP
state (no valid telegrams are generated by the
device)
BLINKING Firmware or boot code update
OFF No internal device error leading to a safe state
E-ERR External error
indicator
Red ON This LED can be set only from the user applica-
tion program using a special library POU
SF_E_ERR_LED_SET (
Ä
Chapter 4.6
“AC500-S Libraries” on page 224 for further
details). One of possible use cases is the visu-
alization of important external device errors.
BLINKING This LED can be set only from the user applica-
tion program using a special library POU
SF_E_ERR_LED_SET (
Ä
Chapter 4.6
“AC500-S Libraries” on page 224 for further
details). One of possible use cases is the visu-
alization of light external device errors.
OFF No external errors were identified.
DANGER!
The safety functionality and, as a result, safe process operation, is no more guaranteed by the
SM560-S Safety CPU in the DEBUG RUN (Non-safety) mode.
In case of DEBUG RUN (Non-safety) mode activation on SM560-S Safety CPU, the responsibility
for safe process operation lies entirely with the organisation and person responsible for the acti-
vation of DEBUG RUN (Non-safety) mode.
With the help of POU SF_SAFETY_MODE (
Ä
Chapter 4.6 “AC500-S Libraries” on page 224 for fur-
ther details) one can retrieve the information if SM560-S is in SAFETY or DEBUG (NON-SAFETY)
mode and, if required, stop or limit user application program execution.
AC500-S Safety Modules
SM560-S Safety CPU > Diagnosis and LED status display
30.03.2017 AC500-S 41