Getting familiar with map in the process industries

Abstract

Even Parity? Old Parity? Polynomial Checksum? Vertical Byte Parity? BCH Check Code? Cyclical Redundancy Check Code? These are just some of the communication formats currently being used to send information between computers within a network. Whenever a supplier provides a system, a “proprietary” or peculiar protocol is established to operate between the elements of the network. When it is desired to interconnect digital equipment of two or more suppliers, a “custom” interface is required. As long as the two suppliers do not revise their native codes, the custom interface can be reproduced for another application. MAP is a standardized communication format intended to eliminate the wide variety of proprietary formats and the need for custom interfaces between different suppliers of digital equipment and systems. Thus, the term “open” systems interconnect (OSI) and interoperability have been popularized to represent this emerging technology.