GE A071-0CG manual Glossary of Terms, Ascii

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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

 

seven-bit code that standardizes a set of characters

 

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 data-type in the C programming language.

 

Stands for character, or a group of eight bits that function

 

as a single unit.

cyclic redundancy check

An error-detection scheme that checks the integrity of a

 

transmitted message for errors introduced during

 

transmission. Abbreviated as CRC.

data-collection

A software application that acquires data from and sends

application

data to various intelligent electronic devices. Abbreviated

 

as DCA.

data-processing

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

 

 

Restricted

A071-0CG-2.02-2

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Contents Ansi X3.28/SRIO DPA Trademark Notices Table of Contents Ansi X3.28/SRIO DPA List of Figures System Overview Xii Read Access FlagsAnsi X3.28/SRIO DPA List of Tables Viii About this Guide Purpose of this GuideWho Should Use this Guide Additional Documentation Product Perspective OverviewXii Ansi X3.28/SRIO DPA Configuration Tables Configuring TablesConfiguration Sequence Character Times Configuring the Main Table A071MAINAnsi X3.28/SRIO DPA GE Energy Services Baud Rate One Character Time ms Configuring the Mapping Tables Mapping Table Configuration Parameters Log-In User B014USER Configuring Wesmaint for the Ansi X3.28/SRIO DPARead Access Flags Error Messages Appendix AError MessagesFatal Error Messages Ansi Application process diedCant create required exchanges. Suspending Cant allocate rx sinksCant create T071 exchange Cant get enough memory for Ansi Application. SuspendingCant set configured bit rate Cant set communications timersCant spawn/activate E071 process Cant spawn/activate L071 processInvalid Analog Format configured 32 BIN, 6 or 3 BCD Invalid AI offset configuredInvalid AO offset configured Invalid checksum configured Bcc or CrcInvalid DI offset configured Invalid DD offset configuredInvalid do offset configured Invalid embedded response enable Yes or NoInvalid EV offset configured Invalid Evnt offset configuredInvalid modem enable Yes or No Invalid OBJ offset configuredInvalid PD offset configured Invalid parity configured None, Even, OddInvalid Retransmit analog configured -1 to Invalid Retransmit digital configured -1 toInvalid TM offset configured Invalid SYS offset configuredMapped AI point not Found. Check config Mapped AO point not Found. Check configMapped do point not Found. Check config Mapped DI point not Found. Check configMapped EV point not Found. Check config Missing Configuration ... DeletingAnsi X3.28/SRIO DPA Ascii Glossary of TermsWIN List of Acronyms and Abbreviations
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