Profibus Communication problem 6RA70

Hello all experts,

i am trying to communicate S7-300 with a 6RA70 with sfc14 & sfc15. i send in attached the plc side logic. everything is ok and i recieve the status of drive but drive dont recieve the control word and all of the bits are 0 always.

below configuration are related to the Profibus in drive side.

P648= K3001 1ST PZD CB/TB1

P654= B3100 1ST PZD 0

P655=B3101 1ST PZD 1

P658=B3102 1ST PZD 2

i checked everything but i couldnt find the solution.

please check and answer.

best regards

 Hi sir,

For the difference ID address for sfc15, i changed addtess to check if the address has problem in both side( hardware configuration and ID). But sfc15 doesnt have error, on the other hand i check sending data by Load and Transfer methode from MW to PQW, but the same result, 

For Sfc14 i read all of data ( all of 6 pzd) but i couldnt write, is there any parameter in drive side that be wrong.

Also i have to mention that i dont have any error in plc and drive side about HW configuration

I will send the online situation in Plc side and drive side

It seems some address in drive side must be change, does it need to configure some U parameter in drive side related to recieve address? I mean U710-U712, because for transmite data we need some change

PISCEAN 2010

Hello,

Since you mentioned you are able to read drive status, I presume PLC hardware project & drive address & communication is correct.

Based on above, please refer NETWORK 3 of attached snap. In SFC14 & SFC15 hardware ID is different. In SFC14 it is 10C (HEX) = 268 & SFC15 118 (HEX) = 280. So please check the drive address & correct it accordingly.

Hope this helps.

Hi Sir, i send in attached file the PLC project

sorry i couldnt upload the DNL file, i face with upload error, i sent some screen shot

thanks