Xia Yon
Abstract
S7-200 PLC is suitable for procedure control of industrial field.Modbus protocol has been used widely in automation equipments.S7-200 PLC,which adopts modbus protocol,can communicate with kinds of automation equipment easily.In this paper,the author introduces the design of S7-200 communication soft program based on modbus protocol.
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S7-200 PLC is suitable for procedure control of industrial field.Modbus protocol has been used widely in automation equipments.S7-200 PLC,which adopts modbus protocol,can communicate with kinds of automation equipment easily.In this paper,the author introduces the design of S7-200 communication soft program based on modbus protocol.
Key concepts: Modbus, Protocol (science), Automation, Embedded system, Communications protocol, Field bus, Computer science, Engineering