I-MICROSYSTEMS EZILANDELAYO 0104110000076748 Ikhadi loKwakha eliZizimelayo leRaspberry Pi

Ulwazi lweMveliso

IKhadi lokuZisebenzela loKwakha leRaspberry Pi likhadi eliguquguqukayo elivumela abasebenzisi ukuba bongeze izinto ezahlukeneyo kunye neziphumo kwiRaspberry Pi yabo. Iza kunye nesibhozo se-jumper settable se-universal inputs enokuthi iqwalaselwe ukuba ifunde iimpawu ze-0-10V, izixhobo zokubala zokuvala uqhagamshelwano, okanye i-1K / 10K izinzwa zobushushu. Ikhadi likwabonisa ii-LED ezine zenjongo jikelele ezinokulawulwa nge-software ukubonisa isimo segalelo, iziphumo, okanye iinkqubo zangaphandle. Ukongeza, ibandakanya i-RS-485 i-transceiver yokunxibelelana kunye nonikezelo lwamandla omabini ikhadi kunye neRaspberry Pi.

Imiyalelo yokusetyenziswa kwemveliso

1. Qala ngokuplaga iKhadi leSakhiwo esiziSebenzisayo ngaphezulu kweyakho
   Raspberry Pi kunye namandla up inkqubo.
2. Yenza unxibelelwano lwe-I2C lusebenze kwiRaspberry Pi usebenzisa
   raspi-config.
3. Faka isoftware kwi-github.com ngokulandela la manyathelo:
   • Vula i-terminal kwaye ufake umyalelo: git clone
https://github.com/SequentMicrosystems/megabas-rpi.git
   • Guqula uvimba weefayili kwindawo yokugcina ehlanganisiweyo: cd/home/pi/megabas-rpi.
   • Faka isoftware ngamalungelo olawulo: sudomake install
4. Qhuba inkqubo ngokungenisa umyalelo:  megabas
5. Jonga kuluhlu lwenkqubo yemiyalelo ekhoyo ukulungiselela uqwalaselo olungakumbi kunye nokusetyenziswa.

Nceda uqaphele ukuba xa usebenzisa iiKhadi ezininzi zokuSebenza kweZakhiwo, kucetyiswa ukuba usebenzise umbane omnye we-24VDC / AC ukunika amandla onke amakhadi. Umsebenzisi kufuneka ahlule intambo kwaye aqhube iingcingo kwikhadi ngalinye. Ukusetyenziswa kwamandla ekhadi yi-50 mA kwi +24V.

INGCACISO NGOKUBANZI

• Isizukulwana sesibini seKhadi lethu lokuSebenza lokuSebenza lizisa kwiqonga leRaspberry Pi onke amagalelo kunye nokuphuma okufunekayo kwiiNkqubo zokuSebenza eziSebenzayo. I-Stackable ukuya kumanqanaba asi-8, ikhadi lisebenza nazo zonke iinguqulelo zeRaspberry Pi, ukusuka kuZero ukuya
• Izikhonkwane ezimbini zeRaspberry Pi's GPIO zisetyenziselwa unxibelelwano lwe-I2C. Esinye isikhonkwane sabelwe isibambi esiphazamisayo, sishiya izikhonkwane ze-GPIO ezingama-23 ezikhoyo kumsebenzisi.
• Amagalelo asibhozo endalo yonke, akhethwa ngabanye, akuvumela ukuba ufunde imiqondiso ye-0-10V, ubale ukuvalwa koqhagamshelwano, okanye ulinganise amaqondo obushushu usebenzisa i-1K okanye i-10K thermistors. Iziphumo ezine ezicwangcisiweyo ze-0-10V zinokulawula iidimmers zokukhanya okanye ezinye izixhobo zoshishino. Iziphumo ezine ze-24VAC zinokulawula iireyiyi ze-AC okanye izixhobo zokufudumeza kunye nokupholisa. Iimpawu ze-LED zibonisa ubume bazo zonke iziphumo. Amazibuko amabini e-RS485/MODBUS avumela ukwandiswa okungapheliyo.
• I-TVS diode kuwo onke amagalelo akhusela ikhadi le-ESD yangaphandle. I-onboard fuse ekwazi ukusetwa kwakhona iyayikhusela kwiibhulukhwe ezimfutshane ngempazamo.

IIMBONAKALO

• I-jumper esibhozo esettable jikelele, amagalelo e-analog/digital
• 0-10V Iingeniso okanye
• Qhagamshelana Ukuvalwa kweZingeniso ze-Counter okanye
• 1K/10K Ungeniso lweSensom yoBubushushu
• Ezine 0-10V Iziphumo
• Iziphumo ezine ze-TRIAC ezine-1A/48VAC abaqhubi
• IiLED ezine zeNjongo ngokuBanzi
• RS485 ngaphakathi nangaphandle amazibuko
• Iwotshi yexesha lokwenyani kunye ne-backup yebhetri
• On-board push-iqhosha
• Ukhuseleko lweTVS kuwo onke amagalelo
• On-board Hardware Watchdog
• 24VAC unikezelo lwamandla

Onke amagalelo kunye neziphumo zisebenzisa iziqhagamshelo eziplagiweyo ezivumela ukufikelela ngokulula kweengcingo xa amakhadi amaninzi epakishwe. Ukuya kuthi ga kwiiKhadi zeSakhiwo eziziSebenzisayo ezisibhozo zinokupakishwa ngaphezulu kweRaspberry Pi enye. Amakhadi abelana ngebhasi ye-I2C elandelanayo esebenzisa izikhonkwane ezimbini zeRaspberry Pi's GPIO ukulawula onke amakhadi asibhozo. Eli nqaku lishiya i-24 GPIOs eseleyo ekhoyo kumsebenzisi.
Iinjongo ezine ze-LED jikelele zinokunxulunyaniswa namagalelo e-analog okanye ezinye iinkqubo ezilawulwayo. Iqhosha lokutyhala elikwibhodi linokucwangciswa ukusika amagalelo, likhuphe ngaphezulu iziphumo okanye livale iRaspberry Pi.

YINTONI KWIKHITHI YAKHO

1. Ukwakha iKhadi lokuZisebenzela kwiRaspberry Pi
2. Ukunyuka kwehardware
   • a. Ii-M2.5x18mm ezine zobhedu zendoda nomfazi
   • b. Izikrufu zobhedu ezine ze-M2.5x5mm
   • c. Iindongomane ezine zobhedu ze-M2.5
3. Iijumpi ezimbini.Awudingi iijumpi xa usebenzisa iKhadi leSakhiwo esiZizimelayo soKwakha. Jonga icandelo STACK LEVEL JUMPERS ukuba uceba ukusebenzisa amakhadi amaninzi.
4. Zonke izihlanganisi zokukhwelana kwabasetyhini ezifunekayo.

ISIKHOKELO SOKUQALA NGOKUKHAWULEZAYO

1. Qhagamshela iKhadi lakho lokuZisebenzela kwiSakhiwo ngaphezulu kweRaspberry Pi yakho kwaye uxhobise inkqubo.
2. Yenza unxibelelwano lwe-I2C lusebenze kwiRaspberry Pi usebenzisa iraspi-config.
3. Faka isoftware kwi-github.com:
4. a. ~$ git clone https://github.com/SequentMicrosystems/megabas-rpi.git
5. b. ~$ cd /home/pi/megabas-rpi
6. c. ~/megabas-rpi$ sudo yenza ufakelo
7. ~/megabas-rpi$ megabas
   Inkqubo iya kuphendula ngoluhlu lwemiyalelo ekhoyo.

IBHODI UYILO

Ii-LED ezine zeNjongo ngokuBanzi zinokulawulwa kwisoftware. Ii-LED zinokuvulwa ukubonisa ubume balo naliphi na igalelo, imveliso okanye inkqubo yangaphandle.

STACK INQANABA IJUMPERS
Indawo yesithathu ekhohlo yesiqhagamshelanisi i-J3 isetyenziselwa ukukhetha umgangatho wekhadi:

IINTLOBO ZOKUKHETHA ZIJUMPERS
Amagalelo asibhozo endalo yonke anokuba yi-jumper ekhethiweyo ukuba ifunde i-0-10V, i-1K okanye i-10K i-thermistors okanye i-contact closure / i-event counters. Ubuninzi bezinto zokubala zesiganeko yi-100 Hz.

RS-485/MODBUS UNXIBELELWANO
IKhadi le-Automation Card iqulethe i-transceiver esemgangathweni ye-RS485 enokufumaneka zombini yiprosesa yendawo kunye ne-Raspberry Pi. Uqwalaselo olufunwayo lusetiwe ukusuka kwii-jumpers ezintathu zokudlula kwisidibanisi soqwalaselo J3.

Ukuba i-jumpers ifakwe, i-Raspberry Pi inokunxibelelana naso nasiphi na isixhobo esine-interface ye-RS485. Kolu qwalaselo iKhadi lokuZisebenzela kwiSakhiwo yibhulorho engasebenziyo ephumeza kuphela amanqanaba ehardware afunwa yi-RS485 protocol. Ukusebenzisa olu lungelelwaniso, kufuneka uxelele iprosesa yendawo ukuba ikhulule ulawulo lwebhasi yeRS485:

• ~$ megabas [0] wcfgmb 0 0 0 0

Ukuba i-jumpers isusiwe, ikhadi lisebenza njengekhoboka le-MODUS kwaye liphumeza iprotocol ye-MODBUS RTU. Nayiphi na inkosi ye-MODBUS inokufikelela kuwo onke amagalelo ekhadi, kwaye usete zonke iziphumo usebenzisa imiyalelo esemgangathweni ye-MODBUS. Uluhlu oluneenkcukacha lwemiyalelo ephunyeziweyo lunokufumaneka kwi-GitHub: https://github.com/SequentMicrosystems/megabas-rpi/blob/master/Modbus.md
Kuzo zombini ulungelelwaniso iprosesa yendawo kufuneka icwangciswe ukukhulula (i-jumpers efakwe) okanye ukulawula (i-jumpers isusiwe) izibonakaliso ze-RS485. Jonga umgca womyalelo woncedo kwi-intanethi ngolwazi oluthe vetshe.

RASPBERRY PI HEADER

IIMFUNO ZAMANDLA
Ikhadi leSakhiwo esiziSebenzisayo lifuna unikezelo lwamandla lwangaphandle lwe-24VDC/AC olulawulwayo. Amandla anikezelwa ebhodini ngesidibanisi esizinikezeleyo kwikona ephezulu ngasekunene (jonga UKUBEKWA KWEBHODI). Iibhodi zamkela nokuba yi-DC okanye umthombo wamandla we-AC. Ukuba umthombo wamandla we-DC usetyenziswa, i-polarity ayibalulekanga.

Umlawuli we-5V wasekhaya unikezela ukuya kuthi ga kwi-3A amandla kwi-Raspberry Pi, kwaye umlawuli we-3.3V unika amandla kwiisekethe zedijithali. Iziguquli ze-DC-DC ezikwanti zisetyenziselwa ukunika amandla iireyidi.
SIYAKUCEBISA UKUSEBENZISA KUPHELA I-24VDC/AC UMBONO WAMANDLA UKUZE AMANDLA I-RASPBERRY PI IKHADI

Ukuba iiKhadi zokuZisebenzela kwiZakhiwo ezininzi zifakwe phezulu komnye nomnye, sincoma ukusebenzisa umbane omnye we-24VDC / AC ukunika amandla onke amakhadi. Umsebenzisi kufuneka ahlule intambo kwaye aqhube iingcingo kwikhadi ngalinye.

UKUTYA UMBANE:

• 50 mA @ +24V

IMIGALELO YEZONKE
IKhadi le-Automation Card linamagalelo asibhozo endalo yonke anokuthi abe jumper ekhethiweyo ukulinganisa izibonakaliso ze-0-10V, i-1K okanye i-10K i-thermistors okanye ukuvalwa koqhagamshelwano / izinto zokubala isiganeko ukuya kwi-100Hz.

0-10V UQINISEKISO LWEINGXELO

ICANDELO LOMTHETHO COUNTER/UMQHAGAMSHELWANO WOKUVALA UKUQWALASELWA

UBUNGQINA BOMLINGANISO WOBULUNGISA NGE-1K THERMISTORS

UBUNGQINA BOMLINGANISO WOBULUNGISA NGE-10K THERMISTORS

0-10V UQINISEKISO LWEZIPHUMO. MAX LOAD = 10mA

UKUQWQWISWA KWEZIPHUMO ZOKUPHUMA. UMLAYEZO OMKHULU = 1A

I-HODWARE DOG

• IKhadi lokuZisebenzela loKwakha liqulethe i-watchdog eyakhelwe-ngaphakathi eya kuthi iqinisekise ukuba iprojekthi yakho ebaluleke kakhulu iya kuqhubeka isebenza nokuba isoftware yeRaspberry Pi iyaxhonywa. Emva kokunika amandla i-watchdog ivaliwe, kwaye iyasebenza emva kokuba ifumene ukusetha kwakhona kokuqala.
• Ixesha elimiselweyo yimizuzwana eyi-120. Nje ukuba isebenze, ukuba ayifumani ukusetwa kwakhona kwi-Raspberry Pi ngaphakathi kwemizuzu emi-2, i-watchdog iyawasika amandla kwaye iwabuyisele emva kwemizuzwana eli-10.
• I-Raspberry Pi idinga ukukhupha umyalelo wokusetha kwakhona kwi-port ye-I2C ngaphambi kokuba i-timer kwi-watchdog iphelelwe lixesha. Ixesha lesibali-xesha emva kokunyuswa kombane kunye nexesha elisebenzayo linokusetwa kumgca womyalelo. Inani lokusetha kwakhona ligcinwa kwi-flash kwaye inokufumaneka okanye icocwe kumgca womyalelo. Yonke imiyalelo ye-watchdog ichazwa ngumsebenzi woncedo lwe-intanethi.

IZIPHUMO ZE-ANALOGU/UKULUNGISWA KWEZIPHUMO
Onke amagalelo kunye neziphumo ze-analog zilinganisiwe kumzi-mveliso, kodwa imiyalelo ye-firmware ivumela umsebenzisi ukuba aphinde ayilinganise ibhodi, okanye ayilinganisele ukuchaneka okungcono. Onke amagalelo kunye neziphumo zilinganiswe ngamanqaku amabini; khetha amanqaku amabini ngokusondeleyo kangangoko kwiziphelo ezimbini zesikali. Ukulungelelanisa amagalelo, umsebenzisi kufuneka anike iimpawu ze-analog. (Eksample: ukulinganisa amagalelo e-0-10V, umsebenzisi kufuneka abonelele nge-10V umbane ohlengahlengiswayo). Ukulinganisa iziphumo, umsebenzisi kufuneka akhuphe umyalelo wokuseta imveliso kwixabiso elifunekayo, ukulinganisa umphumo kwaye ukhuphe umyalelo wokulinganisa ukugcina ixabiso.

Amaxabiso agcinwa kwi-flash kwaye ijika legalelo lithathwa ngokuba lilayini. Ukuba impazamo yenziwe ngexesha lokulinganisa ngokuchwetheza umyalelo ongalunganga, umyalelo we-RESET ungasetyenziselwa ukuseta kwakhona onke amajelo kwiqela elihambelanayo kumaxabiso asefektri. Emva kweRESET ulungelelwaniso lunokuqaliswa kwakhona.

Ibhodi inokulinganiswa ngaphandle komthombo weempawu ze-analog, ngokulinganisa kuqala iziphumo kunye nokuhambisa iziphumo ezilinganisiweyo kwiigalelo ezihambelanayo. Le miyalelo ilandelayo iyafumaneka ukulungiselela ulungelelwaniso:

• CALIBRE 0-10V IINGCELO: iimegabas cuin
• SETHA KWAKHONA ULUNGELELWANO LWE-0-10V AMAGALELO: iimegabas rcuin
• CHLANGANISA I-10K IMIGAQO: iimegabas cresin
• SETHA KWAKHONA IMIFAKALO YE-10K: iimegabas icresin
• CALIBRE 0-10V IZIPHUMO: iimegabas ukukhupha
• UKUGCINWA KWEXABISO ELIHLELIWEYO KWIFLESHI: iimegabas alta_commanda
• SETHA KWAKHONA UKULUNGISWA KWE-0-10V IZIPHUMO: iimegabas rcuout

INGCACISO YE-hardware

KWIBHODI ESETSHA FUSE

0-10V IMIGAQO:

• Ubuninzi bokufaka iVoltage: 12V
• Ukuthintela Igalelo: 20KΩ
• Isigqibo: 12 amasuntswana
• Sampumyinge: tbd

IINGXELO ZOKUVALWA KOQHAGAMSHELWANO

• Ubuninzi bamaza obuninzi: 100 Hz

0-10V IZIPHUMO:

• Ubuncinci bomthwalo wokuPhuma: 1KΩ
• Isigqibo: 13 IZIQULATHO

I-TRIAC OUTPUTS:

• Esona siphumo sangoku: 1A
• Iziphumo eziphezulu zeVoltage: 120V

LINEARITY PHEZU KWESIKALI ESIPHELELEYO

• Amagalelo e-analog acutshungulwa kusetyenziswa iziguquli ze-12 bit A/D zangaphakathi kwiprosesa ekwibhodi. Amagalelo ngala sampiholele ku-675 Hz.
• Iziphumo ze-analog zi-PWM ezidityanisiweyo kusetyenziswa izibali-xesha ezili-16. Amaxabiso e-PWM aqala kwi-0 ukuya kwi-4,800.
• Onke amagalelo kunye neziphumo zilinganiswe ngexesha lovavanyo kwiindawo zokuphela kwaye amaxabiso agcinwa kwiflash.
• Emva kokulungelelaniswa sijonge umgca kwisikali esipheleleyo kwaye safumana ezi ziphumo zilandelayo:

Isitishi/Ubukhulu/Impazamo %

• 0-10V IN: 15μV:0.15%
• 0-10V: PHAMBILI: 10μV 0.1%

INGCACISO YOOMATSHINI

UKUSETYENZISWA KWE-SOFTWARE

1. Yiba neRaspberry Pi yakho ilungile nge-OS yamva nje.
2. Vulela unxibelelwano lwe-I2C:
   ~$ sudo raspi-config 
   • Guqula igama lokugqithisa lomsebenzisi Guqula igama lokugqithisa lomsebenzisi omiselweyo
   • Iinketho zeNethiwekhi Qwalasela useto lwenethiwekhi
   • Iinketho zokuQalisa Qwalasela iinketho zokuqalisa
   • Iinketho Zokuhlaliswa Seta ulwimi kunye nesetingi zengingqi ukuze zihambelane..
   • Iinketho Zothungelwano Lungisa imidibaniso kwiperipherals
   • I-Overclock Qwalasela i-overclocking ye-Pi yakho
   • Iinketho ezikwinqanaba eliphezulu Qwalasela useto oluphambili
   • Hlaziya Hlaziya esi sixhobo kuguqulelo lwamva nje
   • Malunga neRaspi-config Ulwazi malunga nolu qwalaselo
     • Ikhamera ye-P1 Yenza/Yenza uqhagamshelo kwiRaspberry Pi Camera
     • I-P2 SSH Yenza / Khubaza ukufikelela kumgca womyalelo okude kwiPi yakho
     • I-P3 VNC Yenza/Khubaza ukufikelela okude komzobo kwiPi yakho usebenzisa...
     • I-P4 SPI Yenza/Khubaza ukulayishwa okuzenzekelayo kwe-SPI kernel module
     • I-P5 I2C Yenza/Yenza ukulayisha okuzenzekelayo kwemodyuli ye-I2C kernel
     • Uthotho lweP6 Yenza/Khubaza iqokobhe kunye nemiyalezo yekernel kwizibuko lothotho
     • I-P7 1-Ucingo Yenza / Khubaza ujongano locingo olunye
     • I-P8 eRemote ye-GPIO Yenza/Khubaza ufikelelo olukude kwiiphini ze-GPIO
3. Faka isoftware ye-megabas kwi-github.com:
   • ~$ git clone https://github.com/SequentMicrosystems/megabas-rpi.git
4. 4. ~$ cd /home/pi/megabas-rpi
5. 5. ~/megaioind-rpi$ sudo yenza ufakelo
6. 6. ~/megaioind-rpi$ megabas
   Inkqubo iya kuphendula ngoluhlu lwemiyalelo ekhoyo.

Chwetheza "megabas -h" ngoncedo lwe-intanethi.
Emva kokufaka isoftware, ungayihlaziya kuhlobo lwamva nje ngemiyalelo:

• ~$ cd /home/pi/megabas-rpi
• ~/megabas-rpi$ git tsala
• ~/megabas-rpi$ sudo yenza ufakelo

Amaxwebhu / Izibonelelo

I-MICROSYSTEMS EZILANDELAYO 0104110000076748 Ikhadi loKwakha eliZizimelayo leRaspberry Pi [pdf] Isikhokelo somsebenzisi 0104110000076748 Ikhadi lokuziSebenzisa kwiSakhiwo se-Raspberry Pi, 0104110000076748, iKhadi lokuziSebenzisa leSakhiwo seRaspberry Pi, iKhadi lokuziSebenzisa leSakhiwo, iKhadi lokuSebenza, iKhadi

Iimbekiselo

• Incwadi yokusebenzisa