System bus
Part 4: Installation and Start-up
56
System bus
The heating system
This controller can be expanded in a modular fashion
using additional modules that are connected via the
integrated bus. In its maximum configuration, the system
can be used to control the following heating system
components
1-8 HS (switching)
1-15 Mixed weather-dependent heating circuits
0-15 Room controller (digital or analogue)
1
Solar system (2 collectors, 2 storage tanks)
The various components are simply coupled to the system
bus. The modules log on to the system automatically and
search for their communication partners via the defined
bus IDs (heating circuit number or HS number).
Bus ID
For mixer motor controllers and control units
The bus ID (00-15; expert level parameter) is used to
number the heating circuits in the system. Each operating
module and each mixer motor module is given the number
of the assigned heating circuit as its bus ID.
•
Heating circuit numbers (00-15) may not be assigned
twice.
•
Heating circuit numbers 00 and 01 may not be used
simultaneously.
•
The heating circuits are sequentially numbered starting
with "01".
•
Please only use heating circuit number 00 for
replacement controllers if "00" was used in the
replaced controller.
Pre-settings
heating circuit 1
Î
01
heating circuit 2
Î
02
!
After setting all the bus IDs the system must be re-
energised (once only).
For heat generators via BUS
The heat generators HS are numbered in ascending order.
Here it needs to be taken into account that the first four HS
are controlled directly via the internal relay
=> Addresses via BUS: 05 – 08.