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4.3 CIM 250 GSM/GPRS
The table below provides an overview of the specifications for the
Grundfos CIM 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 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
Maximum Modbus telegram size
260 bytes
Total Modbus TCP/IP application data unit. See fig.
.
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
.
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