Global Patent Index - EP 1002263 A2

EP 1002263 A2 2000-05-24 - A METHOD FOR SYNCHRONISING PROCESS CONTROL EVENTS AND MEASUREMENTS IN A REAL-TIME PROCESS CONTROL AUTOMATION SYSTEM

Title (en)

A METHOD FOR SYNCHRONISING PROCESS CONTROL EVENTS AND MEASUREMENTS IN A REAL-TIME PROCESS CONTROL AUTOMATION SYSTEM

Title (de)

VERFAHREN ZUM SYNCHRONISIEREN VON KONTROLLVORGÄNGEN UND MESSUNG IN ECHTZEIT-VERARBEITUNGS-KONTROLL-AUTOMATISATIONSYSTEM

Title (fr)

METHODE DE SYNCHRONISATION D'EVENEMENTS DE COMMANDE DE PROCESSUS ET DE MESURES DANS UN SYSTEME D'AUTOMATISATION DE COMMANDE DE PROCESSUS EN TEMPS REEL

Publication

EP 1002263 A2 (EN)

Application

EP 99931291 A

Priority

  • FI 9900517 W
  • FI 981388 A

Abstract (en)

[origin: WO9966377A2] The invention relates to a method for synchronising process control events and measurements in a real-time process control automation system comprising at least two units connected to each other by a communication channel, each unit having a real-time counter (RTC) and generating sampling pulses (SAMPLE_SYNC) for process control events and measurements, the method comprising the steps of synchronising the real-time counters of all units (SLAVE) but one to the real-time counter of said one unit (MASTER) by communication through the communication channel, and synchronising the generation of sampling pulses (SAMPLE_SYNC) in each of said units to the real-time counter (RTC) in the unit in question.

IPC 1-7 (main, further and additional classification)

G06F 1/00

IPC 8 full level (invention and additional information)

G04G 7/00 (2006.01); G04G 15/00 (2006.01)

CPC (invention and additional information)

G04G 7/00 (2013.01); G04G 15/006 (2013.01)

Citation (search report)

See references of WO 9966377A3

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9966377 A2 19991223; WO 9966377 A3 20000224; AU 4784599 A 20000105; EP 1002263 A2 20000524; FI 981388 A0 19980615; FI 981388 A 19991216

INPADOC legal status


2004-01-28 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030722

2000-05-24 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000128

2000-05-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB