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 power supplied. Other-
wise it may cause interferences on the bus.
1. Connect your PC to the MPI jack of your CPU via a MPI pro-
gramming cable.
2. Load your project in the SIMATIC Manager from Siemens.
3.
Choose in the menu ‘Options è Set PG/PC interface’.
4. Select in the according list the "PC Adapter (MPI)"; if appropriate
you have to add it first, then click on [Properties].
5. Set in the register MPI the transfer parameters of your MPI net
and type a valid address.
6. Switch to the register Local connection.
7. Set the COM port of the PCs and the transfer rate 38400Baud
for the MPI programming cable from VIPA.
8.
Via ‘PLC è Load to module
’ via MPI to the CPU and save it on
a MMC via ‘PLC è Copy RAM to ROM’ if one is plugged.
Terminating resistor
Approach transfer via
MPI interface
VIPA System 300S CPUDeployment CPU 315-2AG13
Project transfer > Transfer via MPI/PROFIBUS
HB140 | CPU | 315-2AG13 | GB | Rev. 14-40 54
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