US 12,461,499 B2
Programmable logic controller control device and method thereof
Yunmin Seo, Hwaseong-si (KR); Daegeon Kim, Cheonan-si (KR); Jaegeun Cho, Asan-si (KR); and Sungbog Ku, Suwon-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Nov. 28, 2022, as Appl. No. 17/994,769.
Claims priority of application No. 10-2021-0176233 (KR), filed on Dec. 10, 2021.
Prior Publication US 2023/0185266 A1, Jun. 15, 2023
Int. Cl. G05B 19/05 (2006.01)
CPC G05B 19/05 (2013.01) [G05B 2219/1204 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A programmable logic controller (PLC) control device comprising:
a plurality of main blocks, each of which controls a corresponding one of a plurality of upper modules in an automated facility;
a plurality of sub-blocks included in each of the plurality of main blocks and, each of which controls a corresponding one of a plurality of sub-modules, wherein each of the plurality of sub-blocks includes:
an interlock management unit, which checks an operating condition of a sub-module;
a first state management unit, which manages a status of the sub-module; and
a first driving command unit, which selectively issues a drive command to the sub-module based on a state of the interlock management unit; and
a process block included in each of the plurality of main blocks and which manages operation steps of a corresponding one of the plurality of upper modules,
wherein the PLC control device controls the automated facility by controlling equipment in the automated facility, wherein each of the plurality of main blocks is associated with a separate piece of equipment in the automated facility controlled by the PLC control device.