ESD design
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I want to design an ESD system for the terminal and warehouse area. Does the ESD system have to exist independently from the DCS, or can it also be implemented using DCS configuration. If you have relevant design experience, please share and give me some advice on how to do this design?
What do you think? It is definitely necessary for flammable and explosive gases. If ESD is used, it must be configured with ESD. DCS is used to monitor the status of ESD. I am writing this for my graduation thesis, haha!
Generally speaking, ESD is separated from DCS, and a separate system is used. Some special signals must be introduced into ESD separately. For example, in some dual pressure places, one side of the pressure signal enters the DCS, and the other side of the pressure signal enters the ESD.
ESD is an emergency stop system. Its requirement is very high reliability. Its dual and triple redundancy are unique. It is the protector of equipment and equipment. It will definitely stop when it is time to stop. To put it simply, the ESD system can accept various ways of jumping. Personally, I think that the ESD system needs to draw a clear line between the DCS and the ESD system. The signals can be divided into two channels and transmitted to DCS and ESD respectively. Some signals transmitted to ESD can also be transmitted to DCS, but the ESD system exists independently. If ESD is to trip the vehicle, it will not be affected by DCS at all. This is the most basic thing to do.
The two systems should exist independently
Thank you everyone for sharing. So are there any requirements for the distribution of ESD buttons? For example, it is required that each area has a separate one, and the entire library area has a total parking button, etc.
ESD is separated from DCS and uses a separate system. Our company has two systems! As for the distribution of ESD buttons, it depends on what functions you want. The important thing is definitely to arrange them in rows.
Generally speaking, it is designed separately, but if comprehensively considered, if there are many interlocks in the DCS, ESD interlock can be implemented on the DCS, because ESD itself is an interlock, but the name and priority are different (emergency stop system), but pay attention to the difference between cold start and hot start!
ESD and DCS are two systems and should be designed separately
The poster is here to design this system. I admire your leadership vision. I suggest you follow the masters to make a set first and then design it independently.
If you want to set up an emergency stop system, it must be independent of the DCS system. But we have done some projects. If the process system does not have high requirements for parking (that is, the failure has little impact on the process system), and it is just an ordinary and small amount of interlocking parking, the interlocking function can be implemented in the DCS, but this is the so-called ESD. The advantage of doing it in the DCS is naturally cost saving. Therefore, how to set it depends on the actual situation.