The essence of Modbus RTU and Modbus TCP/IP is the Modbus protocol, and they all exchange data by Modbus register address. But what’s the difference between them?

What is VRRP? Why is it better than other routing methods?

A VLAN (virtual local area network) is a logical grouping of network devices with different physical LANs, which is used for avoiding serious conflicts, such as broadcast flooding and performance degradation caused by a large number of hosts.