Table 3- 3 Possible States Of The Link And Rx/Tx Leds - Siemens CPU 410-5H Process Automation System Manual

LINK and RX/TX LEDs
The LINK and RX/TX LEDs indicate the current state of the PROFINET IO interface.
Table 3- 3 Possible states of the LINK and RX/TX LEDs
LED
LINK RX/TX
Lit Irrelevant
Irrelevant Flashes
6 Hz
Note
The LINK and RX/TX LEDs are located directly next to the PROFINET IO interface sockets.
They are not labeled.
REDF LED
The REDF LED indicates specific system states and redundancy errors.
REDF LED System state
Flashes Link-up
0.5 Hz
Flashes Update
2 Hz
Dark Redundant (CPUs are redundant)
Lit Redundant (CPUs are redundant)
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
Meaning
Connection at the PROFINET IO interface is active
Receiving or sending data at the PROFINET IO interface.
Structure of the CPU 410-5H
3.3 Status and error displays
Basic requirements
-
-
No redundancy error
There is an I/O redundancy error:
Failure of a DP master, or partial or total failure of a
•
DP master system
Failure of a PN IO subsystem
•
Loss of redundancy on the DP slave
•
Loss of redundancy at the PN IO device
•
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