The main performance and application functions of distributed control system(DCS) of major domestic manufacturers were detected

four sets of domestic self-controllable DCS

four sets of other domestic DCS and one set of imported DCS were selected to compare the stability of controller and network switching

real-time data acquisition

anti-interference ability

power adaptability

applicability of special function blocks and other main characteristics of the system. The test results show that

in terms of main performance and application functions

there is basically no difference between domestic self-controllable DCS and imported DCS. In terms of processor running speed

real-time network transmission and anti-interference

most self-controllable DCS are better than imported DCS

the switching stability of the processor is the same as that of the imported DCS. The main performance and application functions of DCS from major manufacturers have basically met the requirements

and some indicators are higher than the requirements of industry standards. If the usability of the system is strengthened in practical application

the application effect of the domestic DCS will be better.