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Commissioning
Configuring the SDIO/SM1A electronics module
Automatic detection
The SDIO/SM1A electronics module is automatically detected as a KM-BUS subscriber (SM1) or PlusBus sub-
scriber (HMU heat management unit).
In order for the bus system to be detected, it needs to have been connected at the time of the initial commission-
ing.
Once the bus system has been detected, it remains stored even after disconnection from the mains. When
restarting, it starts with the same bus system.
Changing the configured bus system
1. Remove the bus connection and all sensor connections.
2. With no other connections, connect the SDIO/SM1A electronics module to mains voltage only and switch on.
The LED on the top left of the PCB flashes for 1 minute.
After 1 minute, the LED lights up permanently. The SDIO/SM1A electronics module is now reset to the factory
setting.
3. Restart the SDIO/SM1A electronics module as described above. In the process, the connected bus system
will be detected.
This commissioning process then corresponds to the initial commissioning process described above.
Adjusting the codes/parameters
The codes/parameters for the SDIO/SM1A electronics module are set at the heat generator control unit.
Service instructions for the heat generator or the Vitotronic control unit
Vitotronic control units for heat pumps (type WO1C)
Service instructions for the Vitotronic 200, type WO1C
1. At coding level 1 call up parameter group "Solar".
2. Set parameter "Type solar control unit 7A00" to "3".
3. Invoke parameter C0xx.
4. In the two last places (xx) of the parameter "C0xx", enter the required coding address.
Note
xx corresponds to coding addresses "00:..." to "28:...".
Heat generator with PlusBus data cable (plug 74)
Relevant parameters:
Installation and service instructions for the respective heat generator
Note
For a function description and further details about the parameters: See page 20 22.
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