Johnny T
Member
Hi
I have to control some servo motors via an S7 PLC. The servo motors need to be given various control 'words' via an RS232 or RS485 serial interface.
Does anyone know how I go about this with an S7 300 series PLC. Do I need a special serial comms card or can I talk to them from the MPI port? If its possible via the MPI port, do I need some sort of MPI to serial interface??
Also, does anyone know if I need to include some special function blocks in the software to achieve this?
In fact.. any information at all that anyone has on setting something like this up would be very much appreciated.
Thanks for any help you can give me
JT
I have to control some servo motors via an S7 PLC. The servo motors need to be given various control 'words' via an RS232 or RS485 serial interface.
Does anyone know how I go about this with an S7 300 series PLC. Do I need a special serial comms card or can I talk to them from the MPI port? If its possible via the MPI port, do I need some sort of MPI to serial interface??
Also, does anyone know if I need to include some special function blocks in the software to achieve this?
In fact.. any information at all that anyone has on setting something like this up would be very much appreciated.
Thanks for any help you can give me
JT