CAN tsheb npav nta:
1. Thoob ntiaj teb tus qauv kev lag luam qib tsheb npav, txhim khu kev qha kis tau tus mob, siab real-time;
2. Ntev kis tau tus mob (txog 10km), ceev kis tau tus mob (txog 1MHz bps);
3. Ib lub tsheb npav ib leeg tuaj yeem txuas mus txog 110 nodes, thiab cov naj npawb ntawm cov nodes tuaj yeem nthuav dav tau yooj yim;
4. Ntau tus qauv tsim, sib npaug ntawm tag nrho cov nodes, yooj yim hauv cheeb tsam sib tham, kev siv tsheb loj;
5. High real-time, tsis muaj kev puas tsuaj rau tsheb npav arbitration technology, tsis muaj ncua sij hawm rau cov nodes nrog rau qhov tseem ceeb;
6. Qhov tsis ncaj ncees lawm CAN node yuav kaw thiab txiav tawm kev sib txuas nrog lub npav, tsis muaj kev cuam tshuam rau kev sib txuas lus hauv tsheb npav;
7. Cov lus yog luv thav duab qauv thiab muaj hardware CRC check, nrog tsawg probability ntawm cuam tshuam thiab tsis tshua muaj cov ntaub ntawv yuam kev tus nqi;
8. Tsis siv neeg tshawb xyuas seb cov lus xa mus tau zoo, thiab kho vajtse tuaj yeem rov xa rov qab, nrog kev ntseeg siab ntawm kev sib kis;
9. Lub hardware message filtering muaj nuj nqi tsuas yog tau txais cov ntaub ntawv tsim nyog, txo lub nra ntawm CPU, thiab ua kom yooj yim rau kev npaj software;
10. Cov khub sib tw sib tw, coaxial cable lossis fiber ntau tuaj yeem siv los ua kev sib txuas lus xov xwm;
11. Lub tsheb npav CAN muaj cov qauv yooj yim thiab kev ua haujlwm siab.
RS485 nta:
1. Cov yam ntxwv hluav taws xob ntawm RS485: logic "1" yog sawv cev los ntawm + (2-6) V voltage qhov sib txawv ntawm ob kab;Logic "0" yog sawv cev los ntawm qhov sib txawv ntawm qhov sib txawv ntawm ob kab raws li - (2-6) V. Yog hais tias lub interface teeb liab theem qis dua RS-232-C, nws tsis yooj yim rau kev puas tsuaj rau nti ntawm lub interface Circuit Court, thiab qib no tau sib xws nrog TTL qib, uas tuaj yeem pab txhawb kev sib txuas nrog TTL Circuit Court;
2. Qhov siab tshaj plaws cov ntaub ntawv kis tus nqi ntawm RS485 yog 10Mbps;
3. RS485 interface yog kev sib xyaw ua ke ntawm cov neeg tsav tsheb sib npaug thiab cov neeg txais kev sib txawv, uas txhim kho lub peev xwm los tiv thaiv kev cuam tshuam ntau hom, uas yog, zoo suab cuam tshuam;
4. Qhov siab tshaj qhov sib kis tus nqi tus nqi ntawm RS485 interface yog 4000 taw, uas tuaj yeem ncav cuag 3000 meters.Tsis tas li ntawd, tsuas yog ib qho transceiver tau tso cai txuas nrog RS-232-C interface ntawm lub tsheb npav, uas yog, ib qho chaw nres tsheb muaj peev xwm.RS-485 interface tso cai rau 128 transceivers txuas rau ntawm lub npav.Ntawd yog, nws muaj peev xwm ntawm ntau qhov chaw nres tsheb, yog li cov neeg siv tuaj yeem siv tib lub RS-485 interface kom yooj yim tsim cov cuab yeej network.Txawm li cas los xij, tsuas yog ib lub tshuab xa hluav taws xob tuaj yeem kis tau ntawm lub tsheb npav RS-485 txhua lub sijhawm;
5. RS485 interface yog qhov nyiam serial interface vim nws lub suab nrov tiv thaiv zoo, kev sib kis ntev thiab ntau qhov chaw nres tsheb muaj peev xwm.;
6. Vim hais tias ib nrab duplex network tsim los ntawm RS485 interfaces feem ntau yuav tsum tau tsuas yog ob lub xov hlau, RS485 interfaces kis tau los ntawm cov ntaub thaiv npog.
Qhov txawv ntawm CAN tsheb npav thiab RS485:
1. Ceev thiab nrug: Qhov kev ncua deb ntawm CAN thiab RS485 kis tau tus mob ntawm 1Mbit / S ceev tsis ntau tshaj 100M, uas tuaj yeem hais tau zoo sib xws hauv kev kub ceev.Txawm li cas los xij, thaum qis qis, thaum CAN yog 5Kbit / S, qhov kev ncua deb tuaj yeem ncav cuag 10KM, thiab qhov qis tshaj plaws ntawm 485, nws tsuas tuaj yeem ncav cuag li 1219m (tsis muaj relay).Nws tuaj yeem pom tias CAN muaj qhov zoo tshaj plaws hauv kev sib kis mus ntev;
2. Kev siv tsheb npav: RS485 yog ib tus qauv qhev nkaus xwb, uas yog, tsuas muaj ib tus tswv ntawm lub npav xwb, thiab kev sib txuas lus pib los ntawm nws.Nws tsis tawm ib qho lus txib, thiab cov nodes hauv qab no tsis tuaj yeem xa nws, thiab nws yuav tsum xa cov lus teb tam sim ntawd.Tom qab tau txais cov lus teb, tus tswv tsev nug cov node tom ntej.Qhov no yog los tiv thaiv ntau cov nodes los ntawm kev xa cov ntaub ntawv mus rau lub npav, ua rau cov ntaub ntawv tsis meej pem.Lub tsheb npav CAN yog tus qauv qhev ntau tus qauv, thiab txhua lub node muaj tus tswj CAN.Thaum ntau cov nodes xa, lawv yuav txiav txim siab nrog tus lej ID xa mus, kom cov ntaub ntawv tsheb npav tuaj yeem ua tau zoo thiab ntxhov.Tom qab ib qho xa tuaj, lwm qhov tuaj yeem tshawb pom tias lub npav tsis pub dawb thiab xa nws tam sim ntawd, uas txuag tus tswv tsev cov lus nug, txhim kho tus nqi siv tsheb npav, thiab txhim kho qhov nrawm.Yog li ntawd, CAN tsheb npav lossis lwm lub tsheb npav zoo sib xws yog siv rau hauv cov txheej txheem nrog cov kev ua haujlwm siab xws li tsheb;
3. Kev txheeb xyuas qhov yuam kev: RS485 tsuas yog qhia cov txheej txheem lub cev, tab sis tsis yog cov ntaub ntawv txuas txheej, yog li nws tsis tuaj yeem txheeb xyuas qhov yuam kev tshwj tsis yog tias muaj qee qhov luv luv thiab lwm yam tsis raug ntawm lub cev.Nyob rau hauv txoj kev no, nws yog ib qho yooj yim los rhuav tshem lub node thiab xa cov ntaub ntawv mus rau lub tsheb npav desperately (xa 1 txhua lub sijhawm), uas yuav ua rau tag nrho lub tsheb npav tuag tes tuag taw.Yog li ntawd, yog tias ib qho RS485 node ua tsis tiav, lub tsheb npav network yuav dai.Lub tsheb npav CAN muaj tus tswj xyuas CAN, uas tuaj yeem kuaj xyuas txhua qhov teeb meem tsheb npav.Yog tias qhov yuam kev tshaj 128, nws yuav raug kaw cia li kaw.Tiv thaiv lub tsheb npav.Yog tias lwm cov nodes lossis lawv tus kheej yuam kev raug kuaj pom, qhov yuam kev thav duab yuav raug xa mus rau lub npav kom ceeb toom rau lwm cov nodes tias cov ntaub ntawv tsis raug.Ceevfaj, sawv daws.Nyob rau hauv txoj kev no, ib zaug ib qhov kev pab cuam CPU ntawm CAN tsheb npav khiav mus, nws tus maub los yuav cia li kaw thiab tiv thaiv lub npav.Yog li ntawd, nyob rau hauv lub network nrog kev ruaj ntseg siab, CAN muaj zog heev;
4. Tus nqi thiab kev cob qhia tus nqi: Tus nqi ntawm cov khoom siv CAN yog kwv yees li ob zaug ntawm 485. Nyob rau hauv txoj kev no, 485 kev sib txuas lus yog yooj yim heev nyob rau hauv cov nqe lus ntawm software.Tsuav koj nkag siab txog kev sib txuas lus serial, koj tuaj yeem ua haujlwm.Thaum CAN xav kom tus engineer hauv qab kom nkag siab cov txheej txheem nyuaj ntawm CAN, thiab lub khoos phis tawj sab saud kuj yuav tsum nkag siab txog CAN raws tu qauv.Nws tuaj yeem hais tias tus nqi kawm yog siab;
5. Lub tsheb npav CAN txuas nrog lub cev lub tsheb npav los ntawm CANH thiab CANL ntawm ob qhov chaw tso zis ntawm CAN controller interface nti 82C250.CANH lub davhlau ya nyob twg tsuas tuaj yeem nyob rau theem siab lossis raug tshem tawm hauv lub xeev, thiab CANL lub davhlau ya nyob twg tsuas tuaj yeem nyob rau theem qis lossis raug tshem tawm.Qhov no ua kom ntseeg tau tias, ib yam li hauv RS-485 network, thaum lub kaw lus muaj qhov yuam kev thiab ntau lub nodes xa cov ntaub ntawv mus rau lub tsheb npav tib lub sijhawm, lub tsheb npav yuav luv luv, yog li ua rau qee qhov kev puas tsuaj.Tsis tas li ntawd, CAN node muaj lub luag haujlwm ntawm kev kaw qhov tso tawm thaum qhov kev ua yuam kev loj heev, yog li kev ua haujlwm ntawm lwm qhov ntawm lub tsheb npav yuav tsis cuam tshuam, txhawm rau kom ntseeg tau tias yuav tsis muaj teeb meem hauv lub network, thiab lub tsheb npav yuav nyob rau hauv lub xeev "deadlock" vim muaj teeb meem ntawm tus kheej nodes;
6. CAN muaj cov txheej txheem kev sib txuas lus zoo tshaj plaws, uas tuaj yeem paub tau los ntawm CAN controller nti thiab nws cov interface nti, yog li txo qhov nyuaj ntawm kev txhim kho thiab ua kom lub voj voog kev loj hlob, uas yog incomparable rau RS-485 nkaus xwb nrog hluav taws xob raws tu qauv.
Shenzhen Zhongling Technology Co., Ltd., txij li thaum nws tsim nyob rau hauv 2013, tau cog lus rau lub log neeg hlau kev lag luam, tsim, tsim thiab muag log hub servo motors thiab tsav tsheb nrog ruaj khov kev ua tau zoo.Nws cov kev ua haujlwm siab servo hub tsav tsav tsheb, ZLAC8015, ZLAC8015D thiab ZLAC8030L, txais CAN / RS485 tsheb npav kev sib txuas lus, feem txhawb CiA301 thiab CiA402 sub raws tu qauv ntawm CANopen raws tu qauv / modbus RTU raws tu qauv, thiab tuaj yeem nce mus txog 16 cov khoom siv;Nws txhawb txoj haujlwm tswj, tswj ceev, tswj lub zog thiab lwm yam kev ua haujlwm, thiab tsim nyog rau cov neeg hlau hauv ntau lub sijhawm, txhawb kev loj hlob ntawm kev lag luam neeg hlau.
Post lub sij hawm: Nov-29-2022