I. Dab tsi yog AI, AO, di, thiab ua
Nyob rau hauv teb ntawm kev muaj tshuab automation, Ai, Ao, di, thiab ua yog cov npe luv rau cov cim liab, txhua tus sawv cev sib txawv thiab cov paib tawm tswv yim. Hauv qab no yog lawv cov lus qhia ntxaws ntxaws:
1. AI (analog tswv yim)
Txhais:Siv kom tau txais cov cim txuas ntxiv sib txuas.
Hom phiaj xwm:Feem ntau volfage (piv txwv li, 0-10v) lossis tam sim no (piv txwv li, 4-20ma).
Daim Ntawv Thov Qhia:
{{0- teeb liab tawm tswv yim los ntawm sensors xws li kub, siab, thiab ntws.
-} Kev Tswj Khoom Ua Haujlwm (piv txwv li, Lub cev muaj zog ceev, qib theem qhov siab).
Cov yam ntxwv:
- Cov cim nthuav tawm cov kev hloov pauv tsis tu ncua.
{{0- Koj yuav tsum analog-} Digital Concenter (ADC) kom hloov cov cim analog rau kev tswj cov system.
2. AO (analog tso zis)
- Txhais tau:Siv los tso tawm tsis tu ncua sib txawv sib txawv ntawm cov cim taw qhia kom tswj tau cov khoom siv sab nraud.
- Teeb Liab Hom:Feem ntau volfage (piv txwv li, 0-10v) lossis tam sim no (piv txwv li, 4-20ma).
{{0 {}} Daim Ntawv Thov Kev Sau Npe:
{{0- tswj cov sib txawv zaus zaus ua haujlwm los tswj kev muaj zog.
- hloov kho lub valve qhib lossis rhaub zog.
- tus yam ntxwv:
- Cov cim nthuav tawm cov kev hloov pauv tsis tu ncua.
- yuav tsum tau hloov digital {1} {{2} - Txoj kev hloov pauv hloov pauv digital rau hauv cov cim tawm digg.
3. Di (Cov Lus Qhia Txog Cov Digital)
- Txhais tau:Tau txais cov cim ntsuas digital, feem ntau tsuas yog ob lub xeev nkaus xwb.
- Teeb Liab Hom:Feem ntau hloov paib (piv txwv li, 0V qhia tias "tawm," 24v qhia "rau").
{{0 {}} Daim Ntawv Thov Kev Sau Npe:
{{0- NTUS NTAWD Hloov Chaw (piv txwv li, khawm, Txwv Tsis Pub).
-}}} Tau txais cov txheej txheem ua haujlwm ntaus ntawv (piv txwv li, khiav / nres, ua txhaum lub tswb).
- tus yam ntxwv:
{{0- Cov cim qhia tau txiav txim siab, nrog tsuas yog "rau" lossis "tawm".
{{0- Feem ntau siv rau kev kuaj pom yooj yim.
4. Ua (digital tso zis)
5. - Cov lus txhais: Siv rau cov zis txiav txim siab digital teeb tsa los tswj cov khoom siv sab nraud.
- Teeb Liab Hom:Feem ntau ib lub teeb liab hloov (piv txwv li, 0V qhia tias "tawm," 24v qhia "rau").
{{0 {}} Daim Ntawv Thov Kev Sau Npe:
- tswj tau hloov ntawm cov khoom siv zoo li rov qab thiab solenoid li qub.
{{0 {}} Pib lossis nres cov khoom siv xws li lub cev muaj zog thiab twj.
- tus yam ntxwv:
{{0- Cov cim tau txiav txim siab, tsuas muaj ob lub xeev: "ntawm" lossis "tawm."
{{0- Feem ntau siv rau kev tswj hwm yooj yim.
Ii. Cov ntaub ntawv thov ua piv txwv
Piv txwv ib qho kev lag luam tswj system yuav tsum tau saib xyuas thiab tswj ib lub tank cia:
- Ai:Tau txais analog cim los ntawm kua qib sensors (piv txwv li, 4-20ma) los saib qib ua qib theem qhov siab hauv lub sijhawm.
- Ao:Cov zis ntawm cov cim taw qhia los tswj kev qhib ntawm pub li qub, kev tswj hwm cov kua dej ua kom ceev.
- di:Tau txais cov cim txwv tsis pub xyuas cov teeb liab kom paub tias lub tank tau mus txog qib siab lossis qis.
- ua:Cov zis cim kom tswj cov twj pib / nres, kom ua kom cov qib ua kom nyob hauv teeb meem.
Los ntawm kev siv tsim nyog ntawm Ai, Ao, thiab ua, kev muaj tshuab siv tau ua tiav thiab tswj, txhim kho kev nyab xeeb.