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Siemens
HMI-LED
CB1P3946en
Building Technologies
HMI-LED overview
2013-08-19
2.4 Communication protocol and interface
The HMI-LED is connected to T-HI (RJ45) interface of Climatix
POL
400/600
controller via standard network cable. The HMI-LED is set as Modbus master, and
the Climatix
POL
400/600 controller is set as Modbus slave.
The connection diagram is illustrated as below:
The connection interfaces of HMI-LED are shown as below:
The communication protocol is Modbus RTU with RS485 connector.
The default protocol is as follows:
Baud rate
9600
Parity
N
Data bits
8
Stop bits
2
Define the Climatix controller T-HI port as Modbus slave in SCOPE, and configure
the “target” member “ModbusOverservice” as “Active”.
Connection diagram
Interfaces
Communication
protocol
Communication
settings
