不同供应商的EMC计算机和现场接口硬件之间目前存在不兼容的主要原因之一是不同系统组件之间的信息通信方式。本文回顾了导致这种情况的数据通信方面。能源管理和控制系统（EMCS）的有效运行取决于各种系统组件之间快速可靠通信的能力。虽然通信spped在EMC中通常不像在许多其他过程控制应用中那样重要，但仍然需要错误地接收数据- 自由的随着传感器和控制点数量的增加，要么必须提高数据传输速度，要么必须在整个系统中更广泛地分布智能，即计算机容量。在这两种情况下，最重要的是吞吐量和数据完整性。引文:研讨会，ASHRAE交易，1983年，第89卷，pt。华盛顿特区2B。

One of the principal reasons for the incompatibility that currently exists between different vendors' EMCS computers and field interface hardware is the way in which information is communicated between the various system components. This paper reviews the aspects of data communications that contribute to this situation.The effective operation of an energy management and control system (EMCS) depends on the ability of the various system components to communicate with one another rapidly and reliably. While communication spped is generally not as critical a concern in an EMCS as it is in many other process control applications, the need persists for data to be received error-free. As the number of sensors and control points increases, either the speed of data transmission must be increased or intelligence, i.e., computer capacity, must be more widely distributed throughout the system. In either situation, the overriding concerns are those of throughput and data integrity.