Why is fieldbus so difficult to adopt in the petrochemical industry?
Fieldbus is favored by engineers because of its simple structure, easy expansion and cost saving. However, it is not easy to be promoted in the petrochemical industry, and the reasons are mainly as follows:
First, the petrochemical industry has 70%-80% of the danger zone, explosion protection is the primary consideration of petrochemical automation. The safety gate is an effective part to control the field energy, but it also restricts the capacity of the bus device. So that the main advantages of fieldbus can not be reflected.
Second, due to the particularity of the site, the field equipment can not be live maintenance also restricts the development of the fieldbus.
Third, the intelligent instrument with explosion-proof function is not yet popular, which is also one of the reasons why the fieldbus is not well developed in the petrochemical industry.
Fourth, the increasingly mature domestic DCS system also makes the fieldbus in the development stage at a disadvantage in the petrochemical industry, petrochemical automation system if the collapse of the whole line, will bring huge losses to the enterprise, which determines the petrochemical industry to use failure will not spread to other equipment, and more mature DCS system. Of course, the advantages of the field system have been accepted by people in the petrochemical industry application will be a matter of time, which depends on the efforts of FCS manufacturers and other related industry enterprises.