Name
Designation
Color
Description
H2
PNSync
Green
Lit: Task system is synchronized to the bus cycle clock.
Not lit: Task system is not synchronized to the bus cycle clock.
Flashes 0.5 Hz: Task system has synchronized to the bus cycle clock and cyclic data ex‐
change is running.
H3
PNFault
Red
Not lit: Module is operating without error.
Lit: A system error has occurred (faulty module, incorrect parameterization by the PROFI‐
NET controller, etc.).
H4
DIAG1
Green
Reserved
H5
DIAG2
Green
Reserved
H6
OVTemp
Red
Overtemperature display
Note
When the system is booting, LEDs H1, H2 and H3 are lit.
Connectable components
12.3 PP 72/48D PN 2/2A PN
NCU 1740
130
Equipment Manual, 10/2021, A5E51087503B AA
