Grundfos CIU 501 Instructions

English (GB)
6
4.3 CIM 250 GSM/GPRS
The table below provides an overview of the specifications for the
Grundfos CIM/CIU 250. For further details, please refer to the
specific sections of this functional profile.
4.4 CIM 500 Modbus TCP
The table below provides an overview of the specifications for the
Grundfos CIM/CIU 500 for Modbus TCP. For further details,
please refer to the specific sections of this functional profile.
Modbus GSM/GPRS specifications Description Comments
Data protocol Modbus RTU/Modbus TCP GSM call-up uses RTU. GPRS uses TCP.
Slave address Factory 231 (0xE7)
Can be changed via Modbus register 00003,
SoftwareDefinedModbusAddress.
GSM/GPRS visual diagnostics LED1 See section 6.2 Status LEDs.
Maximum Modbus telegram size 260 bytes
Total Modbus TCP/IP application data unit.
See fig. 25.
Modbus TCP specifications Description Comments
Application layer
DHCP, HTTP, Ping, FTP, SMTP, SNTP,
Modbus TCP
Rotary switch in position 1.
Transport layer TCP
Internet layer Internet protocol V4 (IPv4)
Link layer ARP, media access control (Ethernet)
Ethernet cable
Screened/unscreened, twisted-pair
cables, CAT5, CAT5e or CAT6
Supports auto cable-crossover detecting
(Auto-MDIX)
Maximum cable length 100 metres at 10/100 Mbits/s Corresponds to 328 feet.
Transmission speed 10 Mbits/s, 100 Mbits/s Auto-detected
Industrial Ethernet protocols PROFINET IO, Modbus TCP Selected with rotary switch, section 7.2.

Grundfos CIU 501 Specifications

General

Brand	Grundfos
Model	CIU 501
Category	Controller
Language	English