I use SFC51 to read LED status from an S7-400H.
(SSL-ID = w#16#0074; Index = w#16#0)

I get 30 data records returned.  15 from the Master and 15 from the Standby.

The values returned are:
w#16#xx02 
w#16#xx03 
w#16#xx04 
w#16#xx05 
w#16#xx06 
w#16#xx0B 
w#16#xx0C 
w#16#xx0D 
w#16#xx0E 
w#16#xx0F 
w#16#xx10 
w#16#xx12 
w#16#xx13
w#16#xx15 
w#16#xx17 
(where xx = F8 for the master and F1 for the Standby)

I can find Siemens documentation to explain the LED index w#16#01 to w#16#13 here:

http://support.automation.siemens.com/WW/view/en/23330722

• W#16#0002: INTF (internal error)

• W#16#0003: EXTF (external error)

• W#16#0004: RUN

• W#16#0005: STOP

• W#16#0006: FRCE (force)

• W#16#0007: CRST (restart)

• W#16#0008: BAF (battery fault/overload, short circuit of

battery voltage on bus)

• W#16#0009: USR (user-defined)

• W#16#000A: USR1 (user-defined)

• W#16#000B: BUS1F (bus error interface 1)

• W#16#000C: BUS2F (bus error interface 2)

• W#16#000D: REDF (redundancy error)

• W#16#000E: MSTR (master)

• W#16#000F: RACK0 (rack number 0)

• W#16#0010: RACK1 (rack number 1)

• W#16#0011: RACK2 (rack number 2)

• W#16#0012: IFM1F (interface error interface module 1)

• W#16#0013: IFM2F (interface error interface module 2)

Does anyone know what the LED Index W#16#0015 and W#16#0017 mean?  (MAINT? BUS5F?)

Thanks in advance,
D

Hi,

MAINT - Maintenance Request 

BUS5F - Profinet Interface bus fault

Find the attached picture for status of All LED's.

I understand what each LED means.

I want to know the index number of each LED.  The manuals I have only describe as far as w#16#0013.  But the CPU returns a status for LED Index w#16#0015 and w#16#0017.  Which LED is 15?  Which LED is 17?

Thanks
D

W#16#0015: MAINT (maintenance demand) :- Displaying Maintenance Information

As of STEP 7 V5.4 Service Pack 1, certain PROFINET components can display information indicating whether or not preventive maintenance is necessary and, if it is, how urgent it is.

The following maintenance information is available:

• Maintenance required (indicated by a green wrench):
  The relevant component must be replaced within a foreseeable period.

• Maintenance demanded (indicated by an yellow wrench):
  The relevant component must be replaced soon.