ISA50.5, Application Layer Stack

Scope

1. To develop standards for signals used in process measurement and control, to transmit information between subsystems or separated elements of systems. Such signals may be analog or digital. However, data highway and other time-shared transmission paths, such as those within the scope of ISA72, are excluded.

2. To continue to serve as the U.S. Technical Advisory Group for IEC-SC65A/WG4: Interface Characteristics.

Purpose

To define a common interface between components of electronic measurements and/or control systems.

A Word from the Chairman

Richard Caro, Chairman of ISA50 since 1993, and Cullen Langford, Chairman from 1987 to 1993, wish to thank everyone who participated in the development of the ISA-50.02 Fieldbus standards. The standards were administratively withdrawn as ANSI standards and have now also been withdrawn as ISA standards as they are no longer in use due to the issuance and acceptance of a more current IEC 61158 standards series.

Udo Doebrich, ISA50.5 Chair

See all ISA50.5 Standards

Contacts:

Eliana Brazda Staff Contact ISA Phone: (919) 990-9228 Fax: (919) 549-8288	Patricia Brett Information Member Honeywell Inc Phone: (215) 641-3373 Fax: (215) 641-3850
Robert Crowder Information Member	EM DelaHostria Information Member Rockwell Automation Phone: (440) 646-7324
Udo Doebrich Voting Member Chair Siemens AG Phone: +49 7 21 595 2550 Fax: +49 7 21 595 6728	Mauro Giraudi Voting Member Private Consultant Phone: +39 1 980-2918 Fax: +39 1 980-2918
Kenneth Krivoshein Voting Member Fisher-Rosemount Systems Inc Phone: (512) 418-7400 Fax: (512) 418-7505	Yasuo Kumeda Voting Member Yamatake Corp Phone: +81 467-74-4939 Fax: +81 467-74-3996
Thierry Laine Voting Member Alstom Technology Phone: +33 1 46 29 12 59 Fax: +33 1 46 31 75 45	Klaus-Peter Lindner Information Member Endress+Hauser Process Solutions AG Phone: +41 79 335 66 38 Fax: +41 61 715 2802
Orazio Mirabella Voting Member Univ di Catania Phone: (399) 573-2361 Fax: (399) 533-8280	Lee Neitzel Voting Member Emerson Process Management Phone: (512) 418-4663 Fax: (512) 418-7500
Manfred Patz Voting Member Softing GmbH Phone: 0049 89 45656 0 Fax: 0049 89 45656 399	Rajkumar Rajendran Information Member Shell Phone: +74242663177
Francesco Russo Voting Member MGR Automazione Phone: +39 2 266 4013 Fax: +39 2 266 4013	Karlheinz Schwarz Voting Member Schwarz Consulting Co Phone: 49 72 1 684 844 Fax: 49 72 1 679 387
Edward Skabowski Information Member Tendent Consulting Phone: (925) 944-7167	Peter Thiessmeier Voting Member Klockner-Moeller Phone: 49 22 8 602 568 Fax: 49 22 8 602 724
Nathan Tobol Information Member Ronan Engineering Phone: (818) 883-5211 Fax: (818) 992-6435	Ian Verhappen Information Member Industrial Automation Networks Inc Phone: (403) 829-1077
Robert Webb Voting Member ICS Secure LLC Phone: (360) 394-3692 Fax: (360) 930-0546	Christopher Williams Information Member
Gregory Winchester Information Member Natl Electrical Mfrs Assn Phone: (703) 841-3299 Fax: (703) 841-3399	Graeme Wood Voting Member Graeme Wood Consulting Phone: +44 1 883 62 7797 Fax: +44 1 870 135 1131
Qi YAN Information Member Emerson Phone: 13918009479