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Grundfos CIU 501 User Manual

Grundfos CIU 501
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4.3 CIM 260 3G/4G cellular
The table below provides an overview of the specifications for Grundfos CIM/CIU 260. For further details, refer to the specific sections of this
functional profile.
Modbus cellular specifications Description Comments
Data protocol Modbus TCP Data connection uses Modbus TCP.
Slave address Factory 231 (0xE7)
You can change the address via Modbus register 00003,
SoftwareDefinedModbusAddress.
Cellular connection visual diagnostics LED1
Maximum Modbus telegram size 260 bytes Total Modbus TCP/IP application data unit.
Related information
6.2 Status LEDs
12.1.1 What is APN and Modbus TCP?
4.4 CIM 500 Modbus TCP
The table below provides an overview of the specifications for Grundfos CIM/CIU 500 for Modbus TCP. For further details, refer to the specific
sections of this functional profile.
Modbus TCP specifications Description Comments
Application layer DHCP, HTTP, Ping, FTP, Modbus TCP Rotary switch in position 1 to select Modbus TCP.
Transport layer TCP
Internet layer Internet protocol V4 (IPv4)
Link layer ARP, media access control (Ethernet)
Ethernet cable CAT5, CAT5e or CAT6 Supports auto cable-crossover detecting (Auto-MDIX)
Maximum cable length 100 metres Corresponds to 328 feet.
Transmission speed 10 Mbit/s, 100 Mbit/s Auto-detected
8
English (GB)

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Grundfos CIU 501 Specifications

General IconGeneral
BrandGrundfos
ModelCIU 501
CategoryController
LanguageEnglish

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