The interoperability of an open fieldbus control system

Whether the actual situation is consistent with the above, the answer is no. The field bus international standard

adopted at present contains 8 types, while the original IEC international standard is only one of the 8 types, and

the status of the other 7 types of buses is equal. For the other seven types of buses, regardless of their market

share, each bus protocol has a set of software and hardware support. They can form systems and form products.

The original IEC fieldbus international standard is an empty shelf without software support or hardware support. 

To achieve mutual compatibility and interoperability of these buses, as far as the current state is concerned, it is 

almost impossible.

Through the above, can we draw such an image: the interoperability of an open fieldbus control system, as far as a

specific type of fieldbus is concerned, as long as it follows the bus protocol of this type of fieldbus, its products 

are open In other words, no matter what manufacturer’s product [B&R X20IF1063 Communication Module,

ProSoft MVI69-MCM Modbus Interface Module, Siemens 6ES7414-4HJ04-0AB0 SIMATIC S7-400H CPU, B&R X20BC1083

Bus Controller], it is not necessarily the product of the field bus company, as long as it follows the bus protocol of the bus,

the products are open and interoperable. A bus network can be formed.

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