Lub relay tswj system yog tsim rau yooj yim logic tswj, thaum PLC tuaj yeem paub ntau txoj kev tswj xyuas logic.
2. Cov cuab yeej siv los paub txog kev tswj cov logic sib txawv: lub relay tswj system, nws cov logic muaj nuj nqi yog ua tiav los ntawm cov tsoos relay, xws li tswj lub sij hawm, muaj cov sij hawm sib txuas. Qhov kev txiav txim ntawm cov relay feem ntau muaj feem xyuam rau electromagnetism;
PLC yog lub tshuab ua haujlwm spinnable, uas yog kev sib xyaw ua ke raws li ntau yam "qhov rooj circuits". Nws lub xeev ua haujlwm yog ze rau ntawm lub computer. Rau cov kab uas tau txuas nrog, kev tswj cov logic thiab tsis tuaj yeem hloov pauv los ntawm kev hloov pauv ntawm PCL qhov kev pab cuam, uas muaj cov qauv siv tau yooj yim dua.
Raws li ib tug ntev-lub sij hawm lub tswv yim tus khub thiab cov nqi-ntxiv tus khub ntawm Siemens, Tiantuo Sifang txhawb cov kev daws teeb meem thiab kev siv ntawm Siemens industrial software thiab kho vajtse khoom txhua xyoo puag ncig, nrog rau kev tsim simulation, PLM, MOM, MINDSPHERE, industrial engineering tsim thiab lwm yam kev lag luam. software; FA automation khoom, MC variable zaus tsav khoom, CP tswj cov khoom, PA cov khoom, LD khoom, nruab nrab thiab tsis tshua muaj hluav taws xob hluav taws xob faib khoom, high voltage fais fab faib khoom, lub zog automation thiab lwm yam series ntawm Siemens industrial khoom tau tsim ib tug sau ntawm kev muag khoom, kev saib xyuas, kev pabcuam thiab OEM cov neeg siv khoom thiab cov neeg siv khoom tsim khoom. Kev lag luam thiab kev pabcuam nrog kev daws teeb meem, thiab tau yeej ntau yam khoom plig los ntawm Siemens rau ntau xyoo sib law liag. Raws li Siemens cov khoom thiab cov khoom tsim tus kheej, Tiantuo Sifang muab kev lag luam kev lag luam nrog tag nrho cov kev daws teeb meem rau kev tsim khoom ntse xws li kev tsim qauv, kev siv qhov project thiab cov kev pab cuam rau automation systems, digital factories, industrial Internet thiab lwm yam dej num.