Modbus pehtlaihnak: A ttha tein riantuannak pehtlaihnak sernak caah a biapi bikmi
Modbus pehtlaihnak: A ttha tein riantuannak pehtlaihnak sernak caah a biapi bikmi
A tlangpi in
Modbus cu riantuannak lei ah hman tawnmi protocol a si, 1979 ah thilri hna karlak pehtlaihnak tuah khawhnak ding caah sermi a si. Modbus cu a hramthawk ahcun serial layer in data kuatnak caah application level protocol ah hman a rak si, cun atu cu serial, TCP/IP, le User Datagram Protocol (UDP) hmangin hman khawh a si cang. Hi cauk nih hin protocol tuahsernak kong thukpi in fianternak a pek.
Modbus phunglam cu zeidah a si?
Modbus cu bawi-sal pehtlaihnak in hmanmi halnak lehnak phunglam a si. Bawi-sal pehtlaihnak ah, pehtlaihnak cu pahnih in a cang zungzal (thilri pakhat nih halnak a thawk a hau i lehnak a hngah a hau), cun a halmi thilri (bawi thilri) nih pehtlaihnak pakhat cio thawknak rian a ttuan. A tlangpi in, a hrampi thilri cu minung-seh pehtlaihnak (HMI) asiloah zohkhenhnak le data laknak (SCADA) system a si, cun a pahnihnak thilri cu sensor, program tuah khawhmi logic controller (plcs), asiloah program tuah khawhmi mah tein aa ukmi (PACs). Hi halnak le lehnak hna i a chunglei, cun hi thawngthanhnak a kuatmi network tthen cu protocol tthen dangdang nih a fianter.
Zei thilri nih dah Modbus phunglam kha a dirpi?
Modbus protocol cu thilri hna nih an bawmh, cu hna ah cun programmable logic controllers (PLCs), remote terminal units (RTUs), sensors, actuators, human-machine interfaces (HMIs), le thilri phun tampi hna cu industry automation le industrial fields ah an i tel. Riantuannak Uknak Zung. Modbus cu tampi hman a si i thilri sernak, thazaang, thilri phurhnak le inn saknak riantuannak tibantuk riantuannak ah thilri sertu phunphun nih an sermi thilri hna karlak ah riantuan tti khawhnak caah de facto standard ah a cang.
Modbus gateway cu industry automation system network hubs nih an hmanmi pehtlaihnak phunglam a thlenmi thilri pakhat a si. Smart thilri hna he pehtlaihnak a tuah, a niam deuhmi thilri hna sin in data a lak i Modbus gateway ah a kuat, a cunglei computer network he pehtlaihnak a ser, cun network computer hna he Modbus protocol a tuah.
Modbus pehtlaihnak lam
Modbus protocol nih pehtlaihnak phun pathum a ngei:
lRTU (Remote Terminal Unit)
lASCII (American Standard Code for Information Exchange)
lTCP/IP (Transmission Control Protocol/Internet Protocol)
Modbus protocol ah, Modbus TCP le Modbus RTU cu a tlangpi in pehtlaihnak lam pahnih an si. An dihlak in thilri karlak ah data i thlennak tuah khawhnak ding caah sermi an si ko nain, an hman ning le an hmannak thil sining ah a biapi mi thleidannak cheukhat an um.
Pehtlaihnak lam le rangnak
Modbus TCP nih TCP/IP protocol stack cu network cung in data kuatnak caah a hman, Ethernet tibantuk network infrastructure cungah aa hngatchan i a rangmi le a nganmi data kuatnak tuah khawh a si.
Modbus RTU tu nih cun, RS-485 le RS-232 tibantuk serial line hmangin data a kuat, cu hna cu a tlawm deuhmi kuatnak rang an ngei. Data kuatnak le hmannak thil sining.
Modbus RTU nih data frame pawl kha a hmemi binary format in a khumh hna, address fields, function codes, data le checksum fields hna aa tel. Hi format cu binary phun in ttha tein a kuat khawh, cu nih cun caan hmaan tein asiloah hmunkhat ah uknak hmannak caah aa tlak deuh, a hlei in a um cangmi network infrastructure a um lomi pawngkam ah, cu hna cu riantuannak hmun, aa telmi system, sensor network le uknak system hme tete hna an si.
Modbus TCP tu nih cun, binary data byte pakhat cio kha a fekmi nambar pahnih hexadecimal string ah a thlen, cu cu aa fonh i TCP code format in a kuat. A fawinak, zumhawktlak a sinak le a man a fawinak ruangah, a nganmi thilri sernak system, data center, inn saknak thilri, le riantuannak Internet of Things ah tampi hman a si, cu hna nih cun pehtlaihnak hlatnak le data kuatnak caah caan hmaan le fek tein a herhmi a sangmi a herh.
Ahmannak hmun
Thil sernak riantuannak ah, Modbus cu thil sernak thilri phunphun pehtlaihnak caah le thil sernak kalning kha caan hmaan tein zohkhenhnak le uknak hmuh khawhnak caah hman a si; Thazaang lei ah, thazaang chuahnak, kuatnak le phawtzamhnak kalning hna telh in thazaang riantuannak hna i mah tein riantuannak tawlrelnak caah hman a si; Khualtlawnnak lei ah, Modbus cu khuachung tlanglawng kalnak signal system, mawtaw dirhmun zohkhenhnak, tbk caah hman a si; Inn saknak riantuannak ah, Modbus cu inn chung HVAC, mei vannak le himnak riantuannak ah hman a si.
Chawlehthalnak Internet le Thilri Internet thiamnak a karh tikah, Modbus zong nih a harmi le aa thleng lengmangmi chawlehnak thil sining he aa tlak khawh nakhnga thilthar a ser peng i a tthanchoter peng. Tahchunhnak ah, Modbus/TCP cu zaangfah tein riantuannak Ethernet pehtlaihnak caah a tlangpi in hmanmi phunglam ah a cang, cun Modbus cung ah hram bunhmi gateway thilri hna nih hlanlio Modbus thilri hna kha chanthar network he fawi tein pehtlaih khawhnak a tuah, cloud chiahnak le data hlathlainak a tuah khawh.
A tawinak in chim ahcun, Modbus cu, a puitling cangmi le tam deuh nih hmanmi riantuannak pehtlaihnak protocol pakhat a si bantukin, riantuannak riantuannak thiamnak a tthanchonak a hmuh i hmailei riantuannak fimthiamnak caah hrampi fek a bunh. Technology a karh pengmi he, Modbus nih hin industry lei ah thilthar sernak le thlennak ah a biapi mi rian a ttuan peng laisilole.