EP 4315762 A1 20240207 - EXCHANGING OF A PROGRAMMABLE LOGIC CONTROLLER
Title (en)
EXCHANGING OF A PROGRAMMABLE LOGIC CONTROLLER
Title (de)
AUSTAUSCH EINER SPEICHERPROGRAMMIERBAREN STEUERUNG
Title (fr)
ÉCHANGE D'UN CONTRÔLEUR LOGIQUE PROGRAMMABLE
Publication
Application
Priority
- DE 102021204165 A 20210427
- EP 2022058068 W 20220328
Abstract (en)
[origin: WO2022228797A1] The invention relates to a method for exchanging a first programmable logic controller (26) that performs a control function by running through a process cycle (30) consisting of multiple successive process steps (32, 34, 36, 38). For this purpose, provision is made for the first programmable logic controller (26) and a further programmable logic controller (28) as network subscribers of a network (10). Data are transferred between network subscribers of the network (10) in accordance with a communication cycle (14) defined in a communication scheme (12) and consisting of successive time intervals (16, 18, 20, 22, 24). The communication cycle (14) is additionally synchronized with the process cycle (30) such that transfer information is output to the further programmable logic controller (28) by the first programmable logic controller (26) during a time interval (20) of a first kind of the communication cycle (14). After the transfer information has been read in by the further programmable logic controller (28), the control function is performed by this further programmable logic controller (28) instead of the first programmable logic controller (26).
IPC 8 full level
H04L 12/40 (2006.01); G05B 19/05 (2006.01); G05B 19/418 (2006.01)
CPC (source: EP US)
G05B 19/052 (2013.01 - EP US); H04L 12/40169 (2013.01 - EP); H04L 12/40195 (2013.01 - EP); G05B 2219/1208 (2013.01 - EP US); G05B 2219/1209 (2013.01 - EP US); H04L 12/40 (2013.01 - EP); H04L 2012/4026 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021204165 A1 20221027; EP 4315762 A1 20240207; US 2024219882 A1 20240704; WO 2022228797 A1 20221103
DOCDB simple family (application)
DE 102021204165 A 20210427; EP 2022058068 W 20220328; EP 22718673 A 20220328; US 202218557662 A 20220328