Table 3- 2 Possible States Of The Bus1F, Bus5F, And Bus8F Leds - Siemens CPU 410-5H Process Automation System Manual

Structure of the CPU 410-5H
3.3 Status and error displays
INTF and EXTF LEDs
The two INTF and EXTF LEDs provide information about errors and other particular things
that happen during user program execution.
LED
INTF EXTF
Lit Irrelevant
Irrelevant Lit
BUS1F, BUS5F, and BUS8F LEDs
The BUS1F, BUS5F and BUS8F LEDs indicate errors associated with the PROFIBUS DP
and PROFINET IO interfaces.
Table 3- 2 Possible states of the BUS1F, BUS5F, and BUS8F LEDs
LED
BUS1F BUS5F
Lit Irrelevant
Irrelevant Lit
Irrelevant Flashes
Flashes Irrelevant
Irrelevant Flashes
IFM1F and IFM2F LEDs
The IFM1F and IFM2F LEDs indicate errors on the first or second synchronization module.
LED
IFM1F IFM2F
Lit Irrelevant
Irrelevant Lit
38
Meaning
An internal error was detected (programming, parameter assignment, or license
error).
An external error was detected (i.e., an error whose cause is not in the CPU
module).
BUS8F
Irrelevant An error was detected at the PROFIBUS DP interface.
Irrelevant An error was detected at the PROFINET IO interface.
A PROFINET IO system is configured but not connected.
Irrelevant One or several devices on the PROFINET IO interface are not responding.
Irrelevant One of more slaves on the PROFIBUS DP interface are not responding.
Irrelevant One or more IO devices on the PROFINET IO interface are not responding.
Meaning
An error was detected on synchronization module 1.
An error was detected on synchronization module 2
Meaning
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA