Siemens SFC51 to read LED status?

[FONT=&quot]Can test SFC51 to read LED status with PLCSIM? I will used 315-2-Dp and currently when I tested with PLCSIM, I only got LED ON bit at Index W#16#0004 with SSL ID W#16#0019 when PLCSIM is run and When PLCSIM stop, nothing changes as i don't have stop bit at Index w#16#0005. Could someone guide me out? I tried SSL ID W#16#0074 and return value got error 16#8082. [/FONT]

[FONT=&quot]I have STRUCT my return Data Record at follow. [/FONT]

[FONT=&quot]DR Struct[/FONT]
[FONT=&quot]ID : word;[/FONT]
[FONT=&quot]Led On : Byte;[/FONT]
[FONT=&quot]Led Blink :Byte;[/FONT]
[FONT=&quot]End Struct:[/FONT]

[FONT=&quot]Is that right for SSL ID W#16#0019 too? I am confused with Siemens manual.[/FONT]

[FONT=&quot]TIA,[/FONT]
[FONT=&quot]
[/FONT]

You cannot call SFC51 if the plc is in stop.

how i can access SF led?

okies and thanks LD again. How do i have access to get SF led status? there are not mention for SF LED Index?