Master-slave assignment

• EnOcean components can only be taught-in on a PP 45 RC and PPB 30 RC master ventilation unit.
• Just one slave ventilation unit can be taught-in on one master. Exception: In systems with PP 45 RC and PPB 30 RC unit pairs, the additional teaching-in of the PPB 30 RC into the PP 45 RC master is possible.
• No presettings are needed for master-slave operation.
• A ventilation unit automatically becomes a master if the master unit is set to receive mode and a teach-in telegram is received from a slave unit.
• A ventilation unit becomes a slave unit if this slave transmits a teach-in telegram to the master unit and the master confirms it.
• If a master unit receives a valid teach-in telegram from an EnOcean component that has not yet been taught in, the data is evaluated and stored.
• Set values are transferred from the master to the slave in cycles, e.g. ventilation level, operating mode and sensor measurements. Data, timer and changeover times are also transferred in cycles and the transfer confirmed.
• If the master does not receive a response from the slave unit within a defined time, the unit pair affected switches to fault.
• If the slave unit doesn't receive cyclic queries from the master, it switches to fault. The faults are displayed using LED flash code → Faults, rectification.