Connect the CAN cable to the pump's "Modbus RTU" module
as shown below. For further information, see the documenta‐
tion for your Modbus installation.
Fig. 8: Modbus connector for metering pumps (example showing 2
pumps GMXa and a PLC)
5 T-coupler, M 12, 5-pin CAN
6 Terminating resistor M 12 coupling
7 Terminating resistor M 12 plug
8 CAN connecting cable CAN connecting cable
9 CAN connecting cable
13 CAN pump GMXa e.g. for acid
14 CAN pump GMXa e.g. for alkali
Insert the metering pump's mains plug into the power socket
- the metering pump may start to pump.
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 ...
Bleeding ...
ModbusRTU Bus address
20
1 ... 247
Supplementary operating instructions for Modbus RTU
27
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