Modbus Communication: O ye fɛn ye min bɛ se ka kɛ sababu ye ka izini rezow jɔ minnu tɛ fɛn tiɲɛ
Modbus Communication: O ye fɛn ye min bɛ se ka kɛ sababu ye ka izini rezow jɔ minnu tɛ fɛn tiɲɛ
Kuma bɛɛ lajɛlen
Modbus ye protocole ye min bɛ kɛ ka caya izini siratigɛ la, min dabɔra san 1979 walasa ka kumaɲɔgɔnya kɛ otomatiki minɛnw ni ɲɔgɔn cɛ. Modbus tun bɛ waleya fɔlɔ i n’a fɔ baarakɛminɛnw (application level protocole) walasa ka kunnafoniw ci seriyali layɛrɛ fɛ, wa sisan a bɛ se ka bonya fana walasa ka waleya seriyali, TCP/IP ani User Datagram Protocol (UDP) fɛ. Nin sɛbɛn in bɛ protokol waleyali faamuyali kuncɛlen di.
Modbus protocole ye mun ye?
Modbus ye ɲinini jaabi protocol ye min bɛ waleya matigi ni jɔn cɛsira fɛ. Matigi ni jɔn cɛsira la, kumaɲɔgɔnya bɛ Kɛ tuma bɛɛ fla-fla (minɛn dɔ ka kan ka ɲinini dɔ Daminɛ ka sɔrɔ ka jaabi makɔnɔ), wa ɲininikɛlan (minɛn kuntigi) de bɛ jɛɲɔgɔnya kelen-kelen bɛɛ Daminɛ. A ka c’a la, minɛn fɔlɔ ye hadamaden ni masin cɛsira ye (HMI) walima kɔlɔsili ni kunnafonidilan (SCADA) sitɛmu, k’a sɔrɔ minɛn filananw ye sensɛriw ye, hakilijagabɔlanw ye minnu bɛ se ka porogaramu (plcs), walima otomatiki kunnafonidilan minnu bɛ se ka porogaramu (PAC). O ɲininiw ni jaabiw kɔnɔkow, ani rezow layini min bɛ o cikanw ci, olu bɛ ɲɛfɔ ni protocole layɛrɛ suguya wɛrɛw ye.
Minɛn jumɛnw bɛ Modbus protocole dɛmɛ?
Modbus protocol bɛ dɛmɛ kosɛbɛ minɛnw fɛ, i n’a fɔ programmable logic controllers (PLCs), remote terminal units (RTUs), sensorw, actuators, human-machine interfaces (HMIs), ani minɛn suguya caman wɛrɛw minnu bɛ izini otomatiki ni izini baarakɛyɔrɔw la. Taabolo kɔlɔsili ɲɛmɔgɔso. Modbus bɛ baara kɛ kosɛbɛ, wa a kɛra sariya ye min bɛ baara kɛ ɲɔgɔn fɛ minɛnw ni ɲɔgɔn cɛ minnu dilannen don fɛn dilannikɛla suguya caman fɛ, baarabolow la i n’a fɔ fɛn dilanni, fanga, bolifɛnw, ani sow jɔli otomatiki.
Modbus gateway ye minɛn ye min bɛ kumaɲɔgɔnya kɛcogo sɛmɛntiya min bɛ baara kɛ ni izini otomatiki sitɛmu rezow hubuw ye. A bɛ kumaɲɔgɔnya kɛ ni minɛn hakilitigiw ye, ka kunnafoniw lajɛ duguma minɛnw na k’u ci Modbus da la, ka jɛɲɔgɔnya sigi senkan ni sanfɛla ɔridinatɛri rezo ye, ka Modbus protocol kɛ ni ɛntɛrinɛti ɔridinatɛriw ye.
Modbus ka kumaɲɔgɔnya kɛcogo
Modbus protocole bɛ ni kumaɲɔgɔnya siraba saba ye:
lRTU (Terminal yɔrɔjan yɔrɔ) .
lASCII (Amerika ka sariyasun min bɛ kunnafonidilanw ni ɲɔgɔn cɛ) .
lTCP/IP (Transmission Control Protocol/Internet Protocol) .
Modbus protocol kɔnɔ, Modbus TCP ani Modbus RTU ye kumaɲɔgɔnya fɛɛrɛ fila ye minnu ka ca kosɛbɛ. Hali n’u bɛɛ dabɔra walasa ka kunnafonidilanw falenfalen nɔgɔya minɛnw ni ɲɔgɔn cɛ, danfaraba dɔw bɛ u waleyali fɛɛrɛw n’u baarakɛcogo la.
Kumaɲɔgɔnya kɛcogo ani teliya
Modbus TCP bɛ baara kɛ ni TCP/IP protocol stack ye kunnafonidilanw cili kama ɛntɛrinɛti kan, a bɛ a jigi da ɛntɛrinɛti infɔrɔmasiko kan i n’a fɔ Etɛrinɛti walasa ka kunnafonidilanw ci teliya la ani ka caya.
Faan wɛrɛ fɛ, Modbus RTU bɛ kunnafoniw ci seriyali siraw fɛ i n’a fɔ RS-485 ani RS-232, minnu ka cikan teliya ka dɔgɔ kosɛbɛ. Donanw cicogo ni u kɛcogo misaliw.
Modbus RTU bɛ kunnafonidilanw datugu cogo la min bɛ kɛ cogo fila la, i n’a fɔ ladɛrɛsi forow, baarakɛcogo kodew, kunnafoniw, ani checksum forow. O cogoya in bɛ lase ka ɲɛ cogo fila la, o b’a to a bɛ bɛn waati yɛrɛ la walima sigida kunnafoniko baarakɛcogo ma, kɛrɛnkɛrɛnnenya la sigida minnu na, ɛntɛrinɛti infɔrɔmasiko tɛ yen, i n’a fɔ izini otomatiki yɔrɔw, sitɛmu minnu bɛ don a kɔnɔ, sensɛri rezow, ani kunnafonisɛbɛn misɛnninw.
Faan wɛrɛ fɛ, Modbus TCP bɛ binary data bayt kelen-kelen bɛɛ sɛmɛntiya ka kɛ hexadecimal sɛrɛkili jɔlen ye ni jateden fila ye, o kɔfɛ, o bɛ siri ɲɔgɔn na ka ci TCP kode cogo la. K’a sababu kɛ a nɔgɔya ye, a ka dannaya, ani a musaka ka bon, a bɛ baara kɛ kosɛbɛ otomatiki siratigɛbaw la, kunnafonidilanw kɔnɔ, sow otomatiki la, ani izini fɛnw ka Ɛntɛrinɛti la, minnu bɛ kumaɲɔgɔnya yɔrɔ janw wajibiya ani waati yɛrɛyɛrɛ ni sabatili wajibiyalenbaw kunnafonidilanw cicogo la.
KELENpplication yɔrɔ
Sɛnɛko siratigɛ la, Modbus bɛ kɛ ka fɛn dilanni minɛn suguya caman siri ɲɔgɔn na ani ka se ka fɛn dilanni taabolo kɔlɔsili n’a kɔlɔsili sɔrɔ waati yɛrɛ la ; Kuranko siratigɛ la, a bɛ kɛ fanga siratigɛw ɲɛnabɔli otomatiki la, fanga bɔli, a cili, ani a tilali taabolo fana sen bɛ o la; Bololabaara siratigɛ la, Modbus bɛ kɛ dugubaw kɔnɔ nɛgɛso tɛmɛsira taamasiyɛnw na, bolifɛnw cogoya kɔlɔsili, a ɲɔgɔnnaw ; Sow otomatiki siratigɛ la, Modbus bɛ baara kɛ ni HVAC, yeelen, ani lakana siraw ye sow kɔnɔ.
Ni izini Ɛntɛrinɛti ni fɛnw ka Ɛntɛrinɛti fɛɛrɛbɔ yiriwali ye, Modbus fana bɛ ka fɛn kuraw don ani ka fɛnw sɛmɛntiya tuma bɛɛ walasa ka se ka ladamu izini ko gɛlɛnbaw ni fɛn caman Changements. Misali la, Modbus/TCP bɛ ka kɛ dɔɔnin dɔɔnin sariyaba ye izini Etɛrinɛti kumaɲɔgɔnya la, wa dakun minɛn minnu sinsinnen bɛ Modbus kan, olu bɛ Modbus laadala minɛnw dɛmɛ u ka se ka don nɔgɔya la bi rezow la, o bɛ kɛ sababu ye ka sankaba mara ani ka kunnafoniw sɛgɛsɛgɛ.
Kuma surun na, Modbus, n’o ye izini kunnafonidilan kɔgɔlen ye, wa a bɛ baara kɛ ni min ye kosɛbɛ, o ye izini otomatiki fɛɛrɛbɔ ɲɛtaa ye, wa a ye jusigilan jɔnjɔn sigi izini hakilila nataw kama. Ni fɛɛrɛbɔ yiriwali bɛ senna, Modbus bɛna t’a fɛ ka jɔyɔrɔba ta kokuradonni ni fɛnkurabɔli la, izini jɛkulu kɔnɔwalima.