There is the possibility to enable the option
‘Test, commissioning, routing’
in the hard-
ware configuration by means of the properties dialog of the PROFIBUS via the register
‘Operating mode’
at
‘DP slave’
. The activation affects as follows:
n
The PROFIBUS interface gets an "active" PROFIBUS node, this means it is involved
in the token rotation.
n
Via this interface you have PG/OP functions (programming, status request, control,
test).
n
The PROFIBUS interface serves as a gateway (S7 routing).
n
The bus rotation time can exceed.
When disabled, the PROFIBUS interface operates as a server for communication serv-
ices with the following characteristics:
n
The PROFIBUS interface gets an "passive" PROFIBUS node, this means it is not
involved in the token rotation.
n
Via this interface you have PG/OP functions (programming, status request, control,
test).
n
The speed of the PG/OP functions is limited.
n
Bus rotation time is not influenced.
n
S7 routing is not possible.
8.3 PROFIBUS communication via extension module EM M09
9pin SubD jack: (isolated)
The interface supports the following functionalities, which are switch able by an hardware
configuration:
n
MPI (default / after overall reset)
The MPI interface serves for the connection between programming unit and CPU. By
means of this the project engineering and programming happens. In addition MPI
serves for communication between several CPUs or between HMIs and CPU.
Standard setting is MPI address 2.
n
PROFIBUS DP slave (option)
The PROFIBUS slave functionality of this interface can be activated by configuring
the sub module
‘MPI/DP’
of the CPU in the hardware configuration.
The activation of the PROFIBUS functionality of the extension module EM M09 happens
with the following proceeding:
1.
Turn off the power supply.
2.
Chapter 2.4 ‘Mounting’ on page 13
Operating mode DP slave:
Test, commissioning,
routing (active/passive)
X2 MPI(PB)
Enable PROFIBUS func-
tionality
VIPA System MICRO
Option: Deployment PROFIBUS communication
PROFIBUS communication via extension module EM M09
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