Glossary of Terms
application | A piece of software (a program) consisting of one or more |
| processes and supporting functions. |
ASCII | American Standard Code for Information Interchange. A |
| |
| representing letters and numbers for international use. |
baud rate | A measurement of the speed of a communications line; the |
| number of times a line can change state in one second; the |
| rate at which a signal is modulated. |
binary | A number system having only two symbols (1 and 0), and |
| where values are expressed in the base two number |
| system. |
bit | Abbreviation of binary digit. The smallest unit of |
| information in a binary system. Has a value of either one |
| (1) or zero (0). |
char | The name of a |
| Stands for character, or a group of eight bits that function |
| as a single unit. |
cyclic redundancy check | An |
| transmitted message for errors introduced during |
| transmission. Abbreviated as CRC. |
A software application that acquires data from and sends | |
application | data to various intelligent electronic devices. Abbreviated |
| as DCA. |
A software application that requests and processes data as | |
application | it is required by (usually) a master station. Abbreviated as |
| DPA. |
host | The client or host station/computer, with which the RTU |
| equipment communicates. Also called a master or master |
| station. |
logical remote unit | An RTU that exists in software, but not physically. LRUs |
| are created by software partitioning of a single physical |
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Full | 21 |
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