14.13 CAN bus
More FlexiSmoke™ smoke ventilation panels can be connected via CAN bus.
FlexiSmoke™ uses a special communication format, so the CAN bus from a FlexiSmoke™ must not be connected to other
systems with CAN.
IMPORTANT
Each section that is connected with CAN shall for correct function be assigned with a unique 5MC ID.
When connecting more FlexiSmoke™ smoke ventilation panels, this configuration shall be done during commissioning or when
replacing a WSA 5MC module in one or more sections. This configuration is done under the menu item CAN.
The CAN bus is used for master/slave connection of smoke zones in multiple sections.
In applications where redundancy is required (to be sure an error in one smoke zone does not affect the function of another smoke
zone), both the CAN 1 and CAN 2 shall be connected between the smoke ventilation panels/sections. The sections in a
FlexiSmoke™ smoke ventilation panel are, when delivered from factory, connected with both CAN. If there is no need for
redundancy, the CAN bus mode can be set to "Independent buses".
Configuration is done in the sub menu: „Configuration → CAN → CAN-bus mode“.
It is not recommended to change the CAN-speed, which is factory set to 10 kbps.
Appendix contains all items that can be configured - see the appendix for detailed explanation.
The item "Operate other WSA 5MC module" in main menu on the touch screen allows to operate all sections that are connected via
the CAN bus (see chapter 18). Although there is a need to establish master/slave connection between several FlexiSmoke™
smoke ventilation panels, the option for remote control will often be of major benefit when commissioning and maintenance. If the
CAN is only used for commissioning and maintenance, there is only need for a single bus connection.
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