Grundfos MAGNA Montage- Und Betriebsanleitung Seite 9

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6. Bus communication via GENIbus
The GENI module enables serial communication via an RS-485 input. The
communication is carried out according to the Grundfos bus protocol, GENI-
bus, and enables connection to the GRUNDFOS Pump Management System
2000, a building management system or another type of external control sys-
tem.
Via the bus signal, it is possible to set pump operating parameters, such as
desired setpoint, temperature influence, operating mode, etc. At the same
time, the pump can provide status information about important parameters,
such as actual head, actual flow, power input, fault indications, etc.
For further details, consult the operating instructions for the GRUNDFOS
Pump Management System 2000 or contact Grundfos.
Note: When the pump is controlled via a bus signal, the number of settings
available on the pump control panel or via the R100 will be reduced.
The setpoint and the control mode can only be set via the bus signal. The
pump control panel and the R100 can only set the pump to max. curve and to
stop. However, an R100 is required if a number is to be allocated to the
pump.
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