en Commissioning
74 WILO SE 2019-07
Menu 2: ModBus field bus connection
The switchgear is equipped with an RS485 interface for connection via ModBus RTU.
Different parameters can be read and also changed to some extent via the interface. In
this case, the switchgear works as a Modbus slave. An overview of individual parameters
and a description of the data types used are shown in the appendix. To use the ModBus
interface, the settings must be changed in the following menus:
Fig.59: Menu 2.01
Menu no. 2.01
Description ModBus RTU interface On/Off
Value range on, off
Factory setting off
Fig.60: Menu 2.02
Menu no. 2.02
Description Baud rate
Value range 9600; 19200; 38400; 76800
Factory setting 19200
Fig.61: Menu 2.03
Menu no. 2.03
Description Slave address
Value range 1 … 254
Factory setting 10
Fig.62: Menu 2.04
Menu no. 2.04
Description Parity
Value range none, even, odd
Factory setting even
Fig.63: Menu 2.05
Menu no. 2.05
Description Number of stop bits
Value range 1; 2
Factory setting 1
Menu 3: Enable pumps
To operate the system, the operating mode must be set for each pump and the pumps
enabled:
▪Every pump is set to the “auto” operating mode as the factory setting.
▪Automatic mode starts after the pumps have been enabled in menu 3.01.
NOTICE!Required settings for the initial configuration.
Carry out the following work during initial configuration:
▪Check direction of rotation of the pumps
▪Set precise motor current monitoring (“Control EC-Booster” only)
Use the following settings to perform the initial configuration:
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