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11. CIU 202 Modbus RTU commissioning, step-by-step guides
If the sensor configuration is changed, restart CIU
XX2 unit to ensure a correct scaling of the sensor
value.
11.1 Hardware setup, CIU 202
Step
Action
Complete the system configuration.
1
This can be done either via Grundfos GO Remote or Grundfos PC Tool Wastewater.
2
Select the Modbus slave address (1-247).
3
Select the transmission speed of the Modbus slave.
4
Select parity and stop bits of the Modbus slave (even parity with 1 stop bit or no parity with 2 stop bits).
5
If necessary, set line termination.
6
Connect the necessary cables from CIU 202 to the Modbus network.
7
Connect the power supply cable to CIU 202, and switch the unit on.
Confirm that the GENIbus LED is permanently green and that the Modbus LED is either off, if no master is actively polling
8
the slave, or flashing green, indicating error-free communication.
CIU 202 is now ready to be accessed via the Modbus network.
11.2 Hardware setup, CIU 262 call-up connection
Step
Action
1
Connect the communication cables from CIU 260 to the wastewater pumps. See CIU quick guide instruction.
2
Fit an antenna to the CIM module SMA connector. See section
3
Insert the SIM card in the CIM 260. See section
4
Connect the mains cable to CIU 262 and power on the CIU 262. See the CIU quick guide instruction.
5
Power on the Grundfos product
Observe that LED2 turns permanently green indicating that CIM 260 is fitted correctly in the CIU unit. See section
6
6.2
LEDs.
Observe that LED1 blinks yellow and changes to yellow pulsing after approximately 30 s, indicating that the cellular
7
network connection is working. See section
By making a call-up from a phone the connection can be verified, LED1 turns permanently yellow.
To configure CIU 262 for a call-up connection, follow the instructions in the "CIM 260 SMS commands installation and
8
operating instructions", which you can find in Grundfos Product Center.
9
To verify the settings after completion, use the SMS command "SMSSETTINGS".
CIU 262 is now ready to be accessed from a Modbus RTU master via call-up or via SMS commands.
11.3 Hardware setup, CIU 262 data connection
Step
Action
1
Connect the communication cables from CIU 262 to the wastewater pumps. See CIU quick guide instruction.
2
Fit an antenna to the CIM module SMA connector. See section
3
Insert the SIM card in CIM 260. See section
4
Connect the mains cable to CIU 262 , and power on the CIU 262. See the CIU quick-guide instruction
5
Power on the Grundfos product.
Observe that LED2 turns permanently green, indicating that CIM 260 is fitted correctly in the CIU unit. See section
6
6.2
LEDs.
Observe that LED1 blinks yellow and changes to yellow pulsing after approximately 30 s, indicating that the data
7
connection is working. See section
To configure CIM 260 for a data connection, follow the instructions in the "CIM 260 SMS commands", which you can
8
download from Grundfos Product Center.
CIU 262 is now ready to be accessed from a Modbus TCP master via a data connection or via SMS commands.
38
6.1.1 Fitting a cellular
6.1.2 Inserting the SIM
6.2
LEDs.
6.1.1 Fitting a cellular
6.1.2 Inserting the SIM
6.2
LEDs.
antenna.
card.
antenna.
card.
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