Profibus and Modbus are two more common industrial field bus, they were widely used in industrial control field.
Because the two buses can’t interconnect with each other, we design a gateway for Profibus and Modbus to achieve
Profibus and Modbus protocol conversion.When designing the gateway, the MCU is AT89C52, protocol chips were
selected Siemens SPC3, and describes the process of protocol conversion.
Gateway is used in industrial field, enabling Profibus and Modbus protocol conversion. The cost of gateway
development is low, it can adapt to the complex environment of industrial field, which brings certain benefits to
manufacturers.