Scheduling algorithm for programmable logic controllers with remote I/Os

Taipei, TAIWAN October 27-October 29

DOI Bookmark:

http://doi.ieeecomputersociety.org/10.1109/RTCSA.1997.629178

Fourth International Workshop on Real ...

	This Article
	PURCHASE ARTICLE: $19 PDF HTML IEEE Xplore Subscribers
	Share
	Email this Article to a friend
	Bibliographic References
	ASCII Text BibTex RefWorks Procite/RefMan/Endnote
	Add to:
	Digg Furl Spurl Blink Simpy Google Del.icio.us Y!MyWeb
	Search
	Similar Articles Articles by Seungkweon Jeong Articles by Young Shin Kim Articles by Wook Hyun Kwon

	ASCII Text	x
	Seungkweon Jeong, Young Shin Kim, Wook Hyun Kwon, "Scheduling algorithm for programmable logic controllers with remote I/Os," Real-Time Computing Systems and Applications, International Workshop on, pp. 87, Fourth International Workshop on Real-Time Computing Systems and Applications (RTCSA'97), 1997.

	BibTex	x
	@article{ 10.1109/RTCSA.1997.629178, author = {Seungkweon Jeong and Young Shin Kim and Wook Hyun Kwon}, title = {Scheduling algorithm for programmable logic controllers with remote I/Os}, journal ={Real-Time Computing Systems and Applications, International Workshop on}, volume = {0}, year = {1997}, isbn = {0-8186-8073-3}, pages = {87}, doi = {http://doi.ieeecomputersociety.org/10.1109/RTCSA.1997.629178}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, }

	RefWorks Procite/RefMan/Endnote	x
	TY - CONF JO - Real-Time Computing Systems and Applications, International Workshop on TI - Scheduling algorithm for programmable logic controllers with remote I/Os SN - 0-8186-8073-3 SP EP A1 - Seungkweon Jeong, A1 - Young Shin Kim, A1 - Wook Hyun Kwon, PY - 1997 KW - programmable controllers; scheduling algorithm; programmable logic controllers; remote I/O; remote input output; multitasking; sequence programs; application processor; network processor; data transmission; bounded response time; computer simulation; PLC VL - 0 JA - Real-Time Computing Systems and Applications, International Workshop on ER -

Seungkweon Jeong, Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Young Shin Kim, Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Wook Hyun Kwon, Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

In this paper, a scheduling algorithm is proposed for a programmable logic controller (PLC) with remote I/Os, assuming the multi-tasking facilities. Since sequence programs are executed on the application processor and I/O data are transmitted by the network processor concurrently, the proposed algorithm schedules the data transmission as well as the sequence program execution. The suggested algorithm guarantees the bounded response time, which is one third of the worst case response time in the absence of scheduling. Computer simulation shows that the algorithm can be easily applied to a real PLC without critical constraints on utilization of resources and inter-relation among tasks.

Index Terms:

programmable controllers; scheduling algorithm; programmable logic controllers; remote I/O; remote input output; multitasking; sequence programs; application processor; network processor; data transmission; bounded response time; computer simulation; PLC

Citation:

Seungkweon Jeong, Young Shin Kim, Wook Hyun Kwon, "Scheduling algorithm for programmable logic controllers with remote I/Os," rtcsa, pp.87, Fourth International Workshop on Real-Time Computing Systems and Applications (RTCSA'97), 1997

Peer Review Notice | Give Us Feedback

Usage of this product signifies your acceptance of the Terms of Use.