Mini Plc maub los

Mini PLC Controller Basic Structure

PLC yog qhov tseem ceeb ntawm lub khoos phis tawj tshwj xeeb uas tsim los rau kev tswj hwm kev lag luam. Nws cov qauv kho vajtse yog qhov pib zoo ib yam li ntawm microcomputer. Nws yeej muaj lub hwj chim mov, central processing unit, nco, input unit thiab output unit.

1. Fais fab mov: siv los hloov alternating tam sim no mus rau qhov tam sim no ncaj qha los ntawm PLC. Tam sim no, PLCs feem ntau yog siv los ntawm kev hloov cov khoom siv fais fab.

2. Central Processing Unit (CPU): CPU yog lub chaw tswj hwm thiab lub hauv paus tseem ceeb ntawm PLC. Nws qhov kev ua tau zoo txiav txim siab qhov ua tau zoo ntawm PLC.

3. Memory: Nws yog ib qho khoom siv hluav taws xob semiconductor nrog lub cim xeeb, uas yog siv los khaws cov kev pab cuam, cov neeg siv cov kev pab cuam, logic variables thiab lwm yam ntaub ntawv.

4. Input unit: Nws yog lub input interface ntawm PLC thiab cov khoom tswj, thiab nws yog tus choj rau lub teeb liab nkag mus rau PLC. Nws txoj haujlwm yog kom tau txais cov teeb liab los ntawm lub ntsiab lus txib thiab cov khoom nrhiav pom.

5. Cov khoom tso tawm: Nws kuj yog qhov kev sib txuas ntawm PLC thiab cov cuab yeej tswj tau. Nws txoj haujlwm yog xa cov teeb liab tawm ntawm PLC mus rau cov cuab yeej tswj hwm, uas yog, CPU hloov cov teeb liab tsis muaj zog mus rau theem teeb liab, thiab tom qab ntawd tsav thiab tua cov khoom tswj.

Siv dav dav

1. Qhib voj tswj

Qhov qhib-voj tswj ntawm qhov hloov pauv yog qhov yooj yim tshaj plaws tswj kev ua haujlwm ntawm PLC.

2. Analog kaw voj

Rau cov analog kaw-loop tswj system, ntxiv rau cov tswv yim digital thiab cov zis, kuj tseem muaj cov ntsiab lus analog tawm thiab cov zis.

3. Digital tswj

Thaum lub kaw lus tswj tau lub tshuab hluav taws xob teb thiab cov khoom siv mem tes servo, PLC tuaj yeem paub txog kev ua haujlwm ntawm kev txais thiab tso tawm cov mem tes ceev, thiab paub txog kev tswj hwm digital.

4. Kev sau thiab saib xyuas cov ntaub ntawv

Txij li thaum PLC feem ntau yog siv rau kev tswj xyuas teb, kev sau cov ntaub ntawv hauv cheeb tsam yog qhov tsim nyog heev. Raws li lub hauv paus no, PLC txuas nrog lub tshuab computer lossis lub vijtsam kov, uas tuaj yeem tsis tsuas yog saib xyuas tus nqi tam sim no ntawm cov ntaub ntawv no, tab sis kuj tseem ua cov kev txheeb xyuas hauv lub sijhawm.

Tecoo, ua tus kws tshaj lij kev tsim khoom siv hluav taws xob muab kev pabcuam, muab OEM thiab kev pabcuam customized rau mini PLC controllers.