Transmission scheduling for fieldbus: a strategy to schedule data and messages on the bus with end-to-end constraints

Author

Franco, Lucia Regina Horta Rodrigues

Author_Institution

Escola Politecnica, Sao Paulo Univ., Brazil

fYear

1996

fDate

4-5 Nov 1996

Firstpage

148

Lastpage

155

Abstract

The transmission scheduling for fieldbus has been addressed until now to minimize the number of data. It does not take into account the temporal dependency of data. Usually, the approaches of transmission scheduling for fieldbus let to the application processes to decide whether to use old values or not. The objective of this paper is to show how to adapt Gerber´s methodology to generate a scheduling table of a set of periodic and aperiodic data from application processes to be transmitted through a fieldbus, guaranteeing their end-to-end constraints; and how this can be done in according to IEC 1158. This strategy obviates the transmission of old and useless data to application, thus optimizing the fieldbus scheduling

Keywords

data communication; field buses; local area networks; manufacturing data processing; protocols; standards; FIP; Gerber methodology; IEC 1158; IEC/ISA standard; aperiodic data; data scheduling; fieldbus; periodic data; protocols; transmission scheduling; Centralized control; Communication system control; Data communication; Field buses; IEC standards; Instruction sets; Instruments; Job shop scheduling; Processor scheduling; Scheduling algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligence and Systems, 1996., IEEE International Joint Symposia on

Conference_Location

Rockville, MD

Print_ISBN

0-8186-7728-7

Type

conf

DOI

10.1109/IJSIS.1996.565063

Filename

565063