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It is recommended to use Modbus Poll tool for debugging, this tool can be connected with Modbus TCP, but also be
connected with Modbus RTU. After installation, the interface is as shown in Figure 7.1, Modbus RTU connection interface as
shown in Figure 7.2, Modbus TCP connection interface as shown in Figure 7.3.
Figure 7.1 Modbus poll interface
Figure 7.2 Modbus RTU connection interface
Figure 7.3 Modbus TCP connection interface
7 Recommend upper computer Tool