veer dr

dear experts

first of all my project deatails are i am using cpu313c-2dp to control 10 abb drive on profibus dp network through RPBA 01 MODULE with pp0 type 4 .there is serious problem whenever with any of reason plc goes in to stop mode during machine running , plc do not stop all motors, these runs continuously at the speed at which thses were before plc going to stop mode, at this condition machine is uncontrolable

this is very dangerous situation

so plz make me how reslove this problem.

thanks