BCU 480 · Edition 03.16l 21
Function
3.3.2 BCSoft
The Windows software BCSoft allows extended access
to individual statistics, protocol functions, line record-
ers and the parameterization of the burner control unit
via an optical interface. Unit parameters which are not
relevant to safety can be set and adjusted to the spe-
cific application.
3.3.3 Configuration, MasterSlave procedure
PROFIBUS DP is structured as a MasterSlave system.
This allows 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 ba-
sis of a defined cycle. This includes, for instance, the
PLC, PC, CNC or VME systems with which the PROFI
BUS DP is operated.
– DP Masters Class 2 (DPM2)
DPM2 devices are programming, project planning or
operator-control devices. They are used for configu-
ration 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
information from the master to the periphery are re-
ferred to as “slaves”.
This also includes the BCU..B1.
3.3.4 Addressing
A maximum of 126 units (masters and slaves) can be
connected 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 BCU..B1 board.
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