Connect the Modbus cable to the “Modbus RTU” module of
the pump, as shown below. For further information, refer to
the documentation for your Modbus installation.
Fig. 9: Modbus connector for metering pumps (example showing 2
pumps and a PLC)
5 Terminal block
8 Modbus connection cable (part number 1113889)
13 Modbus pump e.g. for acid
14 CAN pump e.g. for alkali
A +
B -
GN Earthing
Insert the mains power plug of the metering pump into the
power socket - the metering pump may start to pump imme‐
diately.
2.4
Setting options for the pump control elements
Tab. 24: Operating menu for DFXa, ModbusRTU
1st level 2nd level 3rd level 4th level
Information
Settings ...
Inputs/outputs ...
Degassing ...
ModbusRTU Bus address 20 1 ... 247
Baud rate 9600
19200
38400
Modbus connection cable
Supplementary operating instructions for Modbus RTU
30
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