LF-0020 dej kub sensor
| Kev ntsuas ntau | -50 ~ 100 ℃ |
| -20 ~ 50 ℃ | |
| Qhov tseeb | ± 0.5 ℃ |
| Fais fab mov | DC 2.5V hluav taws xob |
| DC 5 V | |
| DC 12 V | |
| DC 24 V | |
| Lwm yam | |
| Tawm tawm | Tam sim no: 4 ~ 20mA |
| Qhov hluav taws xob: 0.5-2.5V | |
| Qhov hluav taws xob: 0 ~ 5V | |
| TSI RS232 | |
| RS485 ua | |
| TTL Qib: (ntau zaus; mem tes dav) | |
| Lwm yam | |
| Kab ntev | Standard: 10 meters |
| Lwm yam | |
| Load peev | Tam sim no cov zis impedance ≤300Ω |
| Voltage tso zis impedance ≥1KΩ | |
| Kev ua haujlwm ib puag ncig | Kub: -50 ℃ ~ 80 ℃ |
| Humidity: ≤100% RH | |
| Ua kom hnyav | Kev sojntsuam 145 g, nrog cov khoom siv 550 g |
| Lub zog dissipation | 0.5mW ua |
Hom hluav taws xob (0 ~ 5V):
T = V / 5 × 70 -20
(T yog qhov ntsuas kub tus nqi (℃), V yog qhov tso zis hluav taws xob (V), cov qauv no sib raug rau qhov ntsuas ntau -20 ~ 50 ℃)
T = V / 5 × 150 -50
(T yog qhov ntsuas kub tus nqi (℃), V yog qhov tso zis hluav taws xob (V), cov qauv no sib haum rau qhov ntsuas ntau -50 ~ 100 ℃)
Hom tam sim no (4 ~ 20mA)
T = (I-4) / 16 × 70 -20
(T yog qhov ntsuas kub tus nqi (℃), Kuv yog qhov tso zis tam sim no (mA), hom no sib haum mus rau qhov ntsuas ntau -20 ~ 50 ℃)
T = (I-4) / 16 × 150 -50
(T yog qhov ntsuas kub tus nqi (℃), Kuv yog cov zis tam sim no (mA), cov qauv no sib haum rau qhov ntsuas qhov ntsuas -50 ~ 100 ℃)
Nco tseg: Cov qauv kev suav suav suav nrog cov teeb liab sib txawv thiab cov kev ntsuas sib txawv yuav tsum tau rov suav dua!
1.Yog tias nruab nrog lub chaw nres tsheb huab cua uas tsim los ntawm peb lub tuam txhab, txuas ncaj qha rau lub sensor mus rau qhov sib cuam tshuam ntawm qhov chaw nres tsheb huab cua siv lub sensor cable.
2. Yog hais tias lub transmitter yog muas nyias, qhov sib txuam cable sib lawv liag ntawm transmitter yog:
| Kab xim | Tso zis teeb liab | ||
| Hom hluav taws xob | Hom tam sim no | Hom kev sib txuas lus | |
| Liab | Lub zog + | Lub zog + | Lub zog + |
| Dub (ntsuab) | Lub zog hauv av | Lub zog hauv av | Lub zog hauv av |
| Daj | Voltage teeb liab | Tam sim no lub teeb liab | A+/TX |
| Xiav |
|
| B-/RX |
3. Transmitter voltage thiab tam sim no tso zis thaiv:
Hluav taws xob rau qhov hluav taws xob tso zis hom
Kev xaim rau hom tso zis tam sim no
(Dej kub sensor)
(Dej kub sensor)
1. Hom ntawv serial
Cov ntaub ntawv 8 ntsis
Nres me ntsis 1 lossis 2
Kos Tus lej Tsis muaj
Baud tus nqi 9600 Kev sib txuas lus luv luv yog tsawg kawg 1000ms
2. Kev sib txuas lus hom ntawv
[1] Sau qhov chaw nyob
Xa: 00 10 Chaw Nyob CRC (5 bytes)
Rov qab: 00 10 CRC (4 bytes)
Nco tseg: 1. Qhov chaw nyob me ntsis ntawm qhov nyeem thiab sau qhov chaw nyob yuav tsum yog 00.
2. Chaw nyob yog 1 byte thiab qhov ntau yog 0-255.
Piv txwv li: Xa 00 10 01 BD C0
Rov qab 00 10 00 7C
[2] Nyeem ntaus ntawv chaw nyob
Xa: 00 20 CRC (4 bytes)
Rov qab: 00 20 Adress CRC (5 bytes)
Kev piav qhia: Chaw nyob yog 1 byte, qhov ntau yog 0-255
Piv txwv li: Xa 00 20 00 68
Rov qab 00 20 01 A9 C0
[3] Nyeem cov ntaub ntawv hauv lub sijhawm
Xa: Chaw Nyob 03 00 00 00 02 XX XX
Nco tseg: raws li qhia hauv qab no:
| Code | Function txhais | Nco tseg |
| Chaw nyob | Chaw nres tsheb naj npawb (chaw nyob) |
|
| 03 | Fkev cai code |
|
| 0000 | Qhov chaw nyob pib |
|
| 0001 ib | Nyeem cov ntsiab lus |
|
| XX XX | CRC Kos code, pem hauv ntej qis tom qab siab |
Xa rov qab: Chaw nyob 03 02 XX XX XX XX
| Code | Function txhais | Nco tseg |
| Chaw nyob | Chaw nres tsheb naj npawb (chaw nyob) |
|
| 03 | Fkev cai code |
|
| 02 | Nyeem unit byte |
|
| XX XX | Cov ntaub ntawv kub av (siab ua ntej, qis tom qab) | Hex |
| XX XX | Avav noocov ntaub ntawv (siab ua ntej, qis tom qab) |
Txhawm rau xam CRC code:
1. Lub preset 16-ntsis sau npe yog FFFF hauv hexadecimal (uas yog, tag nrho yog 1).Hu rau qhov no rau npe CRC rau npe.
2.XOR thawj 8-ntsis cov ntaub ntawv nrog qis me ntsis ntawm 16-ntsis CRC sau npe thiab muab qhov tshwm sim hauv CRC rau npe.
3.Hloov cov ntsiab lus ntawm cov ntawv sau npe mus rau sab xis los ntawm ib qho me me (mus rau qhov qis me), sau qhov siab tshaj me ntsis nrog 0, thiab xyuas qhov qis tshaj.
4.Yog tias qhov tseem ceeb me ntsis yog 0: rov ua kauj ruam 3 (hloov dua), yog tias qhov tseem ceeb me ntsis yog 1: CRC sau npe yog XORed nrog polynomial A001 (1010 0000 0000 0001).
5. Rov ua cov kauj ruam 3 thiab 4 txog 8 zaug rau sab xis, kom tag nrho cov ntaub ntawv 8-ntsis tau ua tiav.
6. Rov ua cov kauj ruam 2 txog 5 rau kev ua cov ntaub ntawv 8-ntsis tom ntej.
7.CRC sau npe thaum kawg tau txais yog CRC code.
8. Thaum CRC cov txiaj ntsig tau muab tso rau hauv cov ntaub ntawv, cov khoom siab thiab qis yog sib pauv, thiab qhov qis me ntsis yog thawj zaug.
Txuas lub sensor raws li cov lus qhia nyob rau hauv txoj kev xaim, thiab tom qab ntawd ntxig lub sensor sojntsuam mus rau hauv av los ntsuas qhov kub thiab txias, thiab muab lub zog rau lub collector thiab lub sensor kom tau txais cov dej kub ntawm qhov ntsuas ntsuas.
1. Thov xyuas seb lub ntim puas zoo lawm thiab xyuas seb cov qauv khoom puas zoo ib yam nrog kev xaiv.
2. Tsis txhob txuas nrog lub hwj chim qhib, thiab tom qab ntawd rov pib dua tom qab kuaj xyuas cov xaim.
3. Tsis txhob arbitrarily hloov lub Cheebtsam los yog nyob ntawm tej uas tau soldered thaum cov khoom tawm hauv lub Hoobkas.
4.Lub sensor yog cov cuab yeej precision.Thov tsis txhob disassemble nws los ntawm koj tus kheej los yog kov lub nto ntawm lub sensor nrog cov khoom ntse los yog corrosive kua kom tsis txhob ua rau cov khoom puas.
5. Thov khaws daim ntawv pov thawj thiab daim ntawv pov thawj ntawm kev ua raws, thiab xa rov qab nrog cov khoom thaum kho.
1.Thaum kuaj pom cov zis, cov zaub qhia tias tus nqi yog 0 lossis tawm ntawm qhov ntau.Xyuas seb puas muaj kev cuam tshuam los ntawm cov khoom txawv teb chaws.Tus neeg sau yuav tsis tuaj yeem tau txais cov ntaub ntawv raug vim muaj teeb meem ntawm kev xaim.Thov xyuas seb cov kab hluav taws xob puas yog thiab ruaj khov.
2.Yog tias nws tsis yog cov laj thawj saum toj no, thov hu rau cov chaw tsim khoom.
| Tus lej | Fais fab mov hom | Tso zis teeb liab | Piav |
| LF-0020 |
|
| Dej kub sensor |
|
| 5V- |
| 5 vmuaj zog |
| 12V- |
| 12 vmuaj zog | |
| 24V- |
| 24 vmuaj zog | |
| YV- |
| Lwm yammuaj zog | |
|
| 0 | Tsis hloov | |
| V | 0-5 V | ||
| V1 | 1-5 V | ||
| V2 | 0-2.5V | ||
| A1 | 4-20mA | ||
| A2 | 0-20mA | ||
| W1 | TSI RS232 | ||
| W2 | RS485 ua | ||
| TL | TTL | ||
| M | mem tes | ||
| X | Lwm yam | ||
| Piv txwv li: LF-0020-24V-A1: dej kub sensor (transmitter) 24V fais fab mov, 4-20mA tso zis | |||
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