Huawei NetCol5000-A - Page 110

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
4 Commissioning
Issue 01 (2017-07-27)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
102
Figure 4-14 Setting Modbus
Setting Parameters for Modbus RTU
Step 1 On the home screen, choose Settings > Comm Settings > Modbus Settings. Figure 4-14 is
displayed.
Step 2 Set parameters for Modbus RTU by following instructions in Table 4-8.
Table 4-8 Modbus RTU parameter settings
Parameter
Setting
Setting Method
Baud rate
9600, 19200
Set the baud rate as required. The value should be
consistent with that set on the EMS.
Comm
address
1–255
Set the communication address of the precision air
conditioner as planned. The EMS communicates with the
precision air conditioner through this address, and the
communication addresses of two precision air
conditioners connecting to the same EMS must be
unique.
----End
Setting Parameters for Modbus TCP
Step 1 On the home screen, choose Settings > Comm Settings > Modbus Settings. Figure 4-14 is
displayed.
Step 2 Set parameters for Modbus TCP by following instructions in Table 4-8.
Table 4-9 Modbus TCP parameter settings
Parameter
Setting
Setting Method
Link mode
Server, Client,
Server and
client

If you set Link mode to Server, the air conditioner, as
a server, supports two client connection and
establishes communication.

If you set Link mode to Client, the air conditioner, as