Modbus Communication: Yore madit mi gieru dul mi tic maber
Modbus Communication: Yore madit mi gieru dul mi tic maber
Neno wi lembe
Modbus ubedo protocol ma pol kare jutiyo kudu i tic mi yubu piny, juyike i 1979 mi ketho wec ikind jam tic ma tiyo kende kende. Modbus jular jutiyo kudu calu protocol mi rwom pa tic pi cwalo lembe nikadhu kud i serial layer, man kawoni jucopo medo ni tiyo kudu nikadhu kud i serial, TCP/IP, man User Datagram Protocol (UDP). Karatasi eni mio gonyo matuc pa tic pa protocol.
Modbus protocol ubedo ango?
Modbus ubedo lembe ma judwoko wang penji ma jutiyo kudu nikadhu kud i kind rwoth ku jatic. I kind rwoth ku jatic, wec timere kare ku kare i ario (jami tic ucikere ni caku kwac man ekur adwogi), man jam tic ma kwayo (jami tic) utiye ku tic mi caku wec acel acel. Pol kare, jam tic ma pire tek utiye interface pa dhanu ku cuma (HMI) nyo monitoring man data acquisition system (SCADA), ento jam tic mir aryo utiye sensors, programmable logic controllers (plcs), nyo programable automation controllers (PACs). Lembe ma jukwanu i penji man dwokowang' penji, man bende dul pa dul ma cwalu lembe eni, jukwanu ku dul matung tung mi protocol.
Jam tic makani ma tiyo ku Modbus protocol?
Modbus protocol jukonyo ku jam tic madwong, ikinde programable logic controllers (PLCs), remote terminal units (RTUs), sensors, actuators, human-machine interfaces (HMIs), man kit jam tic mange madwong i industrial automation man industrial fields. Dipatmen mi gwoko tic. Modbus jutiyu kudu lee man edoko piny ma pire tek pi tic ku jam tic ma juyubu ku juwil piny matung tung i lembe macalo yubu piny, kero, wotho, man tic mi gedo.
Modbus gateway ubedo jam tic ma loko wec ma jutiyo kudu i kabedo mi tic. Eweco ku jam tic ma rieko, ecoko lembe kud i jam tic ma piny man ecwalo gi i Modbus gateway, eketho winjiri ku kompyuta ma malu, man etimo Modbus protocol ku kompyuta ma rwom pare lapiny.
Modbus yore mi wecu
Modbus protocol utiye ku yore adek mi wecu:
lRTU (Remote Terminal Unit)
lASCII (American Standard Code for Information Interchange)
lTCP/IP (Transmission Control Protocol/Internet Protocol)
I Modbus protocol, Modbus TCP man Modbus RTU gitiye yore aryo ma pol pa wec. Kadok juyike gi zo pi konyo poko lembe ikind jam tic, tiye tung tung moku madit ikind yore mi tic kugi man kite mi tic kugi.
Yore mi wecu man ngwec
Modbus TCP tiyo ku TCP/IP protocol stack pi cwalu lembe iwi network, ma jeku ikum jam tic mi network calu Ethernet pi kelo cwalu lembe pio pio man malac.
Modbus RTU, ku cing makende, cwalu lembe nikadhu kud i serial lines calu RS-485 man RS-232, ma gitiye ku ngwec ma nok. Cwalu lembe man tic kugi.
Modbus RTU uketho lembe i ayi ma nok, ikinde utiye kabedo mi adres, namba mi tic, lembe, man kabedo mi checksum. Kit maeni jucwalo maber i ayi mi binary, ma weko ebedo ber pi tic mi kare mandha nyo mi kabedo, asaga in kabedo ma epe ku jam tic mi network, calu kabedo mi tic, jam tic ma juketho i iye, network mi sensor, man jam tic ma nok.
Modbus TCP, ku cing makende, loko byte acel acel pa data ma binary ni string ma rwom pare ario, ma judwoko karacelu man jucwalo i TCP code format. Ni lembe ma yot, gen, man ber pa piny, jutiyo kudu lee i dilo madongo mi tic, kabedo mi gwoko lembe, tic mi gedo, man Internet of Things mi tic, ma mitu wec mabor man yeny mi kare mandha man bedo maber pi cwalo lembe.
Akabedo mi tic
I tic mi yubu piny, Modbus jutiyu kudu pi mako jam tic matung tung man ni kelo neno man telo wi tic mi yubu piny; I thenge mi kero, jutiyo kudu pi yub pa kero, ikinde utiye yubu, cwalu, man poko; I tic mi wotho, Modbus jutiyu kudu pi nyuthu lanyuth pa gari mi adhura, neno kite ma mutukari utiye kudu, man mange; I thenge mi tic mi gedo, Modbus jutiyo kudu pi HVAC, mac, man gwoko kuc i ot.
Ku dongo pa Internet mi tic man diro mi Internet mi piny, Modbus de ubemedere ni kelo aloka loka man medo kero pare kara ebed maber ku lembe ma tek man ma lokore. Ku lapor, Modbus/TCP ubedoko piny ma pire tek pi wec mi Ethernet, man jam tic mi dhugola ma ucungo iwi Modbus miyo jam tic macon mi Modbus copo rwate ku dul mi kare eni, ma weko gwoko man nyang ikum lembe i cloud.
I ayi ma kicoko, Modbus, calu protocol mi wec ma dit man ma dhanu mapol tiyo kudu, uneno dongo pa diru mi tic man eketho the cen ma tek pi ryeko mi tic i anyim. Ku dongo pa ngec ma ubetimere, Modbus bimediri ku timo tic ma pire tek i kelo aloka loka i dul mi ticnyo.