Under what circumstances is the FF bus generally used?
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As the title suggests, under what circumstances is it generally chosen to use the FF bus? It doesn’t seem to have any advantages over DCS, and it has a bunch of disadvantages. . .
Costs, locations, and setup requirements vary; FF may be more suitable for sites with simple, cost-effective equipment, while DCS is more systematic and detailed.
Is autonomous driving better or is the current driving mode better? Which is better, electric cars or gasoline cars? Often, there is no such thing as good or bad; only what is suitable or not. It has its value, but of course one should not stick to old ways
The FF bus is just one communication method for instruments; why compare it with DCS? DCS control system. The FF bus is used in those circuits or systems that require it or are designed to use it.
I think the FF bus mentioned by the original poster does not refer to a bus protocol; it should be referring to a fieldbus control system
Just my personal opinion: The industry holds the bus system in high regard, with many saying its performance is superior to that of DCS. But in reality, it’s just that the construction costs are lower; after all, with DCS, a separate cable is required for communication with each instrument. I think the drawbacks of the bus instrument are very obvious. Firstly, field parameters of bus-type instruments have extremely low operability, as most of them need to be maintained in the system backend. However, in our production process, if there is a malfunction with the instruments, it is generally necessary to go to the site for verification. Well, imagine this: you arrive at the site only to find that the professional handheld device can only read values but not modify them, which actually increases the difficulty of maintenance, as not every operator has access to the system’s backend for maintenance purposes. Secondly, one bus transmits eight to ten signals, and interference between these signals is inevitable. But interference occurs, and in fact there is no way to determine which table is causing the interference. Finally, it’s not very safe. It’s fine if there’s a problem with the branch cable. What would happen if there is a problem with the main cable? All tables will enter a fault state, which may not be suitable for high-risk chemical production. These are merely some individual, unprofessional opinions
I have never used a field bus control system. Have you used one? What brand is it? On what device? How about it?
The FF bus and the DCS system are two different concepts; DCS can support FF.