Some of the role plc input output modules

Our automated industrial chain two - plc digital io module underlying field devices (especially transmitters and actuators), the upper integrated automation software is the weakest link. Our own design and manufacture of smart transmitters, only 9% of the domestic market. Top-level control software integration weak, partly because the process of industrial enterprise users do not understand the characteristics of the profound lack of experience accumulated, thereby constraining the top-level integration capabilities and quick access to intelligent micro china programmable logic controller plc market segments (industrial enterprises by the state's ability to design qualification prescribed threshold is one of the reasons). User market for their industrial technology / product does not agree, restricted independent research and development of industrial products, opportunities for improvement practices.
For these reasons, the control system made ​​it difficult to enter the critical major projects, core, major equipment, most of the analog output modules in this market is still a monopoly of foreign industrial control systems.
(B) PLC input output modules, for the majority of the discrete factory automation PLC system, the situation is not optimistic.
The current scope of application of PLC technology, in addition to covering a large chemical industry, power companies in almost all industries. However, the current application of the PLC market, more than 95 percent are from foreign products, domestic enterprises absolute disadvantage occupation.