Manual VIPA System 300V Chapter 4 Deployment CPU 31x
HB130E - CPU - Rev. 11/50 4-13
Project transfer
There are 3 possibilities for the transfer of your project into the CPU:
• Transfer via MP
2
I
• Transfer via Profibus (not for startup)
• Transfer via MMC by using a card reader
• Transfer via Ethernet (only CPU 31xNET)
Depending upon CPU 31x you have the following transfer options:
• Transfer via MPI Programming cable (MPI/Profibus Communication)
• Transfer via Green Cable (Serial Communication via MP
2
I - not
Profibus)
The MPI programming cables are available at VIPA in different variants.
The employment of the cables is identical. The cables provide a bus
enabled RS485 plug for the MP
2
I jack of the CPU and a RS232 res. USB
plug for the PC.
Due to the RS485 connection you may plug the MPI programming cables
directly to a already plugged MPI plug on the MP
2
I jack. Every bus
participant identifies itself at the bus with an unique MPI address, in the
course of which the address 0 is reserved for programming devices. The
structure of a MPI net is in the principal identical with the structure of a
1.5MBaud Profibus net. I.e. the same rules are valid and you use the same
components for the build-up. The single participants are connected with
each other via bus interface plugs and Profibus cables. Your CPU 31x
supports transfer rates of up to 1.5MBaud. Per default the MPI net runs
with 187.5kBaud. VIPA CPUs are delivered with MPI address 2.
A cable has to be terminated with its surge impedance. For this you switch
on the terminating resistor at the first and the last participant of a network
or a segment.
Please make sure that the participants with the activated terminating
resistors are always provided with voltage during start-up and operation.
MPI programming cable
STEP7
from Siemens
MPI-/Profibus net
Terminating
Terminating
Overview
Transfer via MP
2
I
resp. Profibus
Transfer with MPI
Programming
cable via MP
2
I
resp. Profibus
Terminating resistor
To Next Page
Loading...
