Title :
On the priority mechanism of 802.4, in hard real-time factory communications
Author :
Santos, I. ; Orozco, J.
Author_Institution :
Dept. Ingenieria Electrica, Univ. Nacional del Sur, Bahia Blanca, Argentina
Abstract :
The purpose of this paper is to establish the Rate Monotonic schedulability of 802.4, the industrial communications protocol, operating in real-time environments. It is shown that although its priority mechanism is not a strict RM scheduler, 802.4 can be RM scheduled if certain necessary conditions hold
Keywords :
local area networks; manufacturing computer control; protocols; real-time systems; token networks; 802.4 industrial communications protocol; MAP; Rate Monotonic schedulability; computer control; priority mechanism; real-time factory communications; token bus LAN protocol; Access protocols; Communication industry; Electronic mail; Job shop scheduling; Local area networks; Manufacturing automation; Physical layer; Production facilities; Round robin; Senior members;
Conference_Titel :
Industrial Electronics, 1994. Symposium Proceedings, ISIE '94., 1994 IEEE International Symposium on
Conference_Location :
Santiago
Print_ISBN :
0-7803-1961-3
DOI :
10.1109/ISIE.1994.333104
