Dear all,

i need  to  know  how  to  delete  the  node  in profibus from  the  hardware configuration & how  to  find  the  address  in  the  program  & delete  it  also  cause when  i delete  it  from  hardware  only  bf disappear  but  it  give  me  sf 

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Split from How to clear SF DP on CPU 315-2-DP.

Hello,

you must think with 2 points, one is define DP Slave with unique address (to identify) and second is buffer/memory reserved for data exchange between Master and Slave. if you delete Slave from HW cfg, this is for most cases half of work, because there are still some references to buffer/memory addresses in code. Look to that definitions in HW cfg, there are exact that addresses reserved for each Slave, that addresses you must also eliminate in code because in this case they point to not existing memory area, therefore SF will be ON.

 Hello,

kero2016

..... .....  how  to  delete  the  node  in profibus from  the  hardware configuration 

 Kindly have a look at the following topic:

Taking off drives from profibus