Grundfos CIM 250 - System Description; Modbus; Modbus RTU (CIM 200); Modbus GSM;GPRS (CIM 250)

English (GB)
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3. System description
3.1 Modbus
The Grundfos Dedicated Controls CU 36X control unit is
connected to up to six Grundfos wastewater pumps. It offers
status information as well as control and monitoring of a
wastewater pit via a user-friendly control panel with display.
The CIM 200/250/500 is an add-on communication module to be
fitted in the CU 36X, using a 10-pin connection. This enables
communication with a PLC, SCADA system, etc.
Via the Modbus RTU connection, it is possible to control the
pumps and read status, measured values, logs, etc.
3.2 Modbus RTU (CIM 200)
Fig. 1 CIM 200 solution for Dedicated Controls. Up to six
pumps can be connected to CU 36X
3.3 Modbus GSM/GPRS (CIM 250)
The CIM 250 is an add-on communication module to be fitted in
the CU 36X, using a 10-pin connection. This enables GSM/GPRS
communication with a PLC, SCADA system, mobile phone, etc.
Via the GSM/GPRS connection, it is possible to control the
pumps and read status, measured values, logs, etc.
Fig. 2 CIM 250 solution for Dedicated Controls. Up to six
pumps can be connected to CU 36X
3.4 Modbus TCP (CIM 500)
Fig. 3 CIM 500 solution for Dedicated Controls. Up to six
pumps can be connected to CU 36X
TM04 3409 4408TM04 4903 2209
Sensor input
Modbus RTU
CU 36X
1 2 345 67
8
9
CIM 200
Sensor input
GSM/GPRS
CU 361
CU 36X
1
23 45
6
CIM 250
TM04 3409 4408
Sensor input
Modbus TCP
CU 36X
CIM 500
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