PFA, BGT · Edition 03.11
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3 .3 BCSoft
The Windows software BCSoft allows extended access to
individual statistics, visualization of the process values and
the parameterization of the field bus interface via an optical
interface. Unit parameters can be adjusted to the specific
application.
3 .4 Configuration, Master-Slave procedure
PROFIBUS DP is structured as a Master-Slave system. This al-
lows mono-master or multi-master systems to be implemented.
A distinction is made between three device types:
– DP Masters Class 1 (DPM1)
DPM1 devices are central controllers which exchange
data with the distributed stations (slaves) on the basis of a
defined cycle. This includes, for instance, the PLC, PC, CNC
or VME systems with which the PROFIBUS DP is operated.
– DP Masters Class 2 (DPM2)
DPM2 devices are programming, project planning or
operator-control devices. They are used for configuration
and commissioning of the system or for system operation
and visualization in ongoing operation.
– DP slaves
The devices which transmit input information from the
periphery to the master and which issue output informa-
tion from the master to the periphery are referred to as
“slaves”.
This also includes the PFA.
3 .5 Addressing
A maximum of 126 units (masters and slaves) can be con-
nected to a PROFIBUS DP system. Each station is assigned an
individual PROFIBUS address which can be set between 0 and
126 using two code switches on the PFA board.
0
87
6 5 4
32
1
0
EDC
B A 9 8 7 6
5 4
32
1
F
9
114 dec
Function
