For the characteristics of S7-200 PLC,the communication function is discussed and its ability is introduced,then with an example of the temperature control system which consists of S7-200 LC,The hardware structure is analyzed in detail.

This paper introduces the functions of local control in UHVDC, which include binary / measure signals configuration function, IRC function, fieldbus communication function, interlocking function, circuit breaker synchronization function, simple sequence control function in DC yard of converter station, AC filter controlled sequence switch off function when outage of DC station control.

Composite films from polypyrrole and some conventional polymer matrixes such as poly(vinyl alcohol) and poly(vinyl chloride),could not only integrate the exciting multifunctionality of polypyrrole as well as the good film-formability and much lower cost of the matrix polymers,but also produce a novel coadjutant effect of.

Depended on multifunctionality of agriculture,the evaluation index system of agricultural multifunctionality are built in the paper.

The environmental multifunctionality of irrigation and drainage system of paddy rice is well accepted, including groundwater recharge, land subsidence reduction, flood prevention, water and air purification, temperature adjustment, biodiversity maintenance.

Empirical study of agricultural multifunction in Guizhou province;

This paper briefly expounds the multifunction of sma ll -sized modern gymnasium,emphasizing the compatibility and usability between diff erent practical functions, and puts forward some problems should pay attention t o the course of the design.

This paper, taking the architecture design of the new library of Soocho w University for instance, analyses the request to the modern library by people and points out that the modern library architecture based on man-serving idea sh ould have its flexibility and multifunction.

The paper attempts to explore these space through graphic thinking and study the multi-functionality.

The idea of multi-functionality of agriculture provides a framework for identifying and evaluating all-around functions of agriculture.

Agricultural multi-functionality means that except providing food and fiber, agriculture has such non-trade concerns as economic, social and environmental functions.