Grundfos CIU 500 - Page 59

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98367081 03.2023

ECM: 1360614

www.grundfos.com

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Table of Contents4
General Information4
Hazard Statements4
Notes5
Introduction5
About this Functional Profile5
Assumptions5
Definitions and Abbreviations5
System Description6
Modbus6
CIM 200 Modbus RTU6
CIM 260 3G/4G Cellular Modbus6
CIM 500 Modbus TCP6
Specifications7
CIM Module7
CIM 200 Modbus RTU7
CIM 260 3G/4G Cellular8
CIM 500 Modbus TCP8
CIM 200 Modbus RTU Setup9
Setting the Modbus Transmission Speed9
Setting the Stop Bits and the Parity Bit10
Modbus Address Selection10
Termination Resistor10
Status Leds11
CIM 260 3G/4G Cellular Modbus Setup11
Installation11
Status Leds13
CIM 500 Modbus TCP Setup13
Connecting the Ethernet Cable13
Setting the Industrial Ethernet Protocol14
Setting the IP Addresses14
Establish a Connection to the Webserver14
Status Leds14
DATA and LINK Leds15
Modbus Function Code Overview15
Modbus Register Addresses16
Register Block Overview16
CIM Configuration Register Block16
CIM Status Register Block18
Cellular Network Real Time Clock19
Pump Control Register Block20
Pump Status Register Block22
Pump Data Register Block25
Sensor-Dependent Measurements27
Alarm Simulation Register Block (Not CUE)28
User Register Block28
Detailed Descriptions of Registers29
Control Mode29
Setpoint in Closed-Loop Control30
Setpoint in Open-Loop Control30
Alarms and Warnings31
Modbus RTU Commissioning, Step-By-Step Guides32
Hardware Setup, CIM 20032
Hardware Setup, CIU 20032
Hardware Setup, CIM 260 Data Connection32
Hardware Setup, CIU 260 Data Connection33
CIM 500 Modbus TCP Communication Setup33
CIU 500 Modbus TCP Communication Setup34
Detailed Descriptions of Functionality34
Apn34
Modbus RTU Telegram Examples37
Modbus Telegram Overview37
Read Holding Registers, 0X0337
Read Input Registers, 0X0438
Write Single Register, 0X0638
Write Multiple Registers, 0X1038
Diagnostics, 0X0839
Diagnostics Register Interpretation39
Diagnostics: Return Query Data39
Reading the CIM Configuration Register Block40
Setting the Setpoint40
Setting the Control Mode40
Starting the E-Pump41
Stopping the E-Pump41
Fault Finding the Product42
CIM 20042
CIM/Ciu 26044
CIM 50046
Modbus RTU Rotary Switch Addresses48
Disposing of the Product49
Grundfos Alarm and Warning Codes50

Grundfos CIU 500 - Page 59

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