Hello!

Can anyone help me how to program SFC 13/ SFC 51 when I'm calling the SFC's in OB1 or other OB's!

Can SFC's be called in any other OB's/FB's?

I don't know how to write the code:

Regards

krishna

OMKRIS2017

Hello!

Can anyone help me how to program SFC 13/ SFC 51 when I'm calling the SFC's in OB1 or other OB's!

Can SFC's be called in any other OB's/FB's?

I don't know how to write the code:

CALL  "DPNRM_DG"

REQ    :=

LADDR  :=

RET_VAL:=

RECORD :=

BUSY   :=

Regards

krishna

 Hello OMKRIS2017

Try this

For SFC13

How do you read out the diagnosis data of a PROFIBUS DP slave with the SFC13 "DPNRM_DG" and how do you evaluate the data in the user program?

https://www.youtube.com/watch?v=S5y_zutWsyY

For SFC 51

How is a DP slave's diagnostic data read out with SFC 51 "RDSYSST" (with an integrated DP interface on the CPU as the DP master)?

SANDEEP Bakoliya

Hi,

For SFC51, u have to create structure for header and array for data record. Please refer content sensitive help of SFC51.  In addition , u also have to select SSL-ID as per ur requirement.

U can call both these SFCs in OB1 or FBs. U can also call it in diagnostics interrupt OBs e.g. OB82 but it depends on ur SSL-ID.  

Hi Sachin,

Thanks for your support. can you provide me some sort of example regarding this. Also might be helpful if you can give some backup example.

Regards

Krishna

OMKRIS2017

Hi Sachin,

Thanks for your support. can you provide me some sort of example regarding this. Also might be helpful if you can give some backup example.

Regards

Krishna

 hi OMKRIS2017,

have a look toSandeep Bakoliya´s entry above. You will find an application example in the FAQs he posted.

Have a try to program it with the help you got. When you have problems and it doesn´t work, tell us specific what the problem is and what you don´t understand. Give us the information if the functions give an error and which state they have, if it doesn´t work.

hope this helps,

regards,