MODBUS RTU seesei ɛne Ethernet nkitahodi hyia
Nnianim: Nnwumayɛbea Ethernet a Wɔhwehwɛ wɔ Nnwuma 4.0 Bere no mu
Nnwuma 4.0 yɛ bere a nyansa a wonya denam nsɛm ho amanneɛbɔ mfiridwuma a wɔde di dwuma so. Smart factories yɛ Industry 4.0 dwumadie tebea titire no mu baako, de mfiri a nyansa wom ne nsɛm ho mfiridwuma di dwuma de nya automation, nyansa, ne nsakraeɛ wɔ nneɛma a wɔyɛ ne dwumadie nhyehyɛeɛ mu. Nnwinnade ahorow a wɔde yɛ nneɛma a wɔde bom, . plcs, sensor, nnwinnade, mfiridwuma mu robɔt, CNC mfiri nnwinnade, ne mfiri afoforo a ɛwɔ smart factory no mu de nya mfiri nkitahodi ne data kyɛfa, na ɛnam so nya adwuma a wɔbom yɛ ne adwumayɛ a ɛyɛ papa, boa ma adwumayɛ tu mpɔn, ɛtew nneɛma a wɔyɛ so, na ɛma nneɛma no yɛ papa.
Ɔkwan bɛn so na wobetumi anya mfiridwuma mu nkitahodi na ama MODBUS RTU atumi afa ntwamutam hyɛn gyinabea ahorow so adi nkitaho?
Dɛn ne Modbus RTU ?
Modbus RTU yɛ nkitahodi nhyehyɛe a ɛtoatoa so a wɔde di dwuma de ka mfiridwuma mu ɛlɛtrɔnik mfiri te sɛ programmable logic controllers (PLCs), sensors, actuators, ne nea ɛkeka ho bom Saa nhyehyɛe yi kyerɛkyerɛ nkra nhyehyɛe a ɛma nkitahodi a ɛda saa mfiri yi ntam no tumi nya data a wɔde mena na ɛhwɛ akwankyerɛ a wɔde di dwuma so. Modbus RTU protocol no mu nneɛma atitiriw bi ne:
· .Nkitahodi a ɛtoatoa so: Ɛfa nkitahodi kwan a ɛtoatoa so na ɛfata ma nkitahodi a ɛda mfiri ntam denam honam fam nkitahodi te sɛ RS-232, RS-485, ne nea ɛkeka ho so
· .Master slave mode: Nkitahodi gyina master-slave architecture so, baabi a mfiri biako yɛ adwuma sɛ owura na ɛyɛ n’asɛyɛde sɛ efi nkitahodi abisade ase, bere a mfiri afoforo yɛ adwuma sɛ nkoa na wobua owura no abisade.
· .Nkra nhyehyeɛ: kyerɛkyerɛ nkra no nhyehyɛɛ mu, a mfiri address, dwumadie koodu, data, ne mfomsoɔ nhwehwɛmu ka ho, de hwɛ sɛ wɔde nsɛm no bɛkɔ na wɔadi ho dwuma yie.
· .Nkitahodi a ɛtrɛw: Wɔde Modbus RTU protocol no di dwuma kɛse wɔ mfiridwuma mu automation nhyehyɛe ahorow mu esiane sɛ ɛbue na ɛnyɛ den sɛ wɔde bedi dwuma nti.
Nsonsonoe a ɛda Modbus RTU ne Modbus TCP ntam
Modbus RTU ne Modbus TCP yɛ nkitahodi akwan ahodoɔ mmienu, a nsonsonoeɛ wɔ data a wɔde mena ahoɔhare, data a wɔde mena, ne nsɛm a ɛfa ho. Modbus RTU fata kɛse ma data a wɔde fa mfiri a ɛwɔ akyirikyiri ntam, bere a Modbus TCP fata kɛse ma bere ankasa mu data a wɔde fa mfiri ntam
Mfiridwuma mu nneɛma a wɔde di dwuma wɔ ɔkwan a ɛyɛ adwuma so
Ɛnam nkɔsoɔ a ɛkɔ so wɔ mfiridwuma mu automation mu nti, wɔde Modbus RTU di dwuma kɛseɛ wɔ mfiridwuma mu automation mfiri ahodoɔ mu, te sɛ PLC, sensors, ne nea ɛkeka ho Ɛnam Modbus RTU so no, yɛbɛtumi anya akyirikyiri hwɛ ne control, ama adwumayɛ mu yiedie atu mpɔn.
Intanɛt a Ɛfa Nneɛma Ho
IoT mfiridwuma nkɔsoɔ nso ama dwumadie ho nsɛm pii ama Modbus RTU. Ɛdenam mfiri ahorow a yɛde bɛka netɛw no ho so no, yebetumi anya akyirikyiri nhwehwɛmu ne mfiri ahorow no so tumi, na ama wɔn nyansa atu mpɔn.
Mfuw afoforo
Wɔ mfiridwuma mu automation ne Intanɛt a ɛfa nneɛma ho akyi no, wobetumi nso de Modbus RTU adi dwuma wɔ nnwuma afoforo te sɛ nkurow a nyansa wom, akwantu a nyansa wom, afie a nyansa wom, ne nea ɛkeka ho.
So MODBUS RTU nso betumi afa Ethernet ports so adi nkitaho?
Mfiridwuma mu nneɛma a wɔde di dwuma wɔ ɔkwan a ɛyɛ adwuma so
Mfiri ahodoɔ a ɛho akokwa wɔ gua so a ɛtumi dane MODBUS RTU (serial port) kɔ MODBUS TCP (Ethernet interface) mu ma nkitahodiɛ, a wɔtaa frɛ no protocol converters, gateways, anaa serial servers. Nneɛma ahorow bi a wɔtaa yɛ ni:
1. Modbus Protocol Gateway: Saa gateways yi boa Modbus protocol ahorow pii, a Modbus TCP/RTU/ASCII ka ho, na ɛwɔ protocol nsakraeɛ tumi.
2. Protocol Converter: Saa mfiri yi tumi dane MODBUS RTU protocol no kɔ MODBUS TCP/IP protocol no mu, na ɛma data a wɔde fa Ethernet so no tumi kɔ.
3. Serial port server: Serial port server yɛ afiri a ɛtumi dane serial nkitahodi kɔ network nkitahodi mu, na ɛma MODBUS RTU mfiri tumi di nkitaho wɔ network no so.
4. Interface Converter: Interface converters binom tumi dane wɔ Modbus RTU ne Modbus TCP ntam.
5. Industrial IoT gateway: Saa mfiri yi nnyɛ sɛ ɛboa protocol nsakrae nko, na mmom ɛma IoT dwumadie foforɔ, te sɛ data a wɔboaboa ano, edge computing ne cloud connection. Ano aduru a egyina mmara kwan so nhyehyɛe a ɛba fam a wɔaka ho asɛm wɔ mu no betumi ama nkɔso nhyehyɛe no ayɛ mmerɛw, atew ɛka so, na ama nkɔso no atu mpɔn.
Nkitahodi Ho Mfonini
Sɛ wobɛnya Modbus RTU nkitahodi denam Ethernet ports so a, mpɛn pii no ɛho hia sɛ wode serial to Ethernet converter di dwuma.
Wɔ saa mfonini yi mu no, wɔde serial device no abɔ converter bi ho denam RS-485 interface so. Converter no dane Modbus RTU protocol packets kɔ Modbus TCP/IP format mu na ɛde kɔ network no so denam Ethernet so. Sɛ mfiri a ɛgye no nsa ka data no wie a, ɛyɛ adwuma anaa mmuaeɛ a ɛne no hyia.
Epilogue a Wɔde Di Dwuma
Modbus RTU wɔ mfasoɔ pii ma akyirikyiri nkrasɛm, a ɛka ho ne ɛka a ɛba fam, nkrasɛm a ɛyɛ adwuma yie, ne tumi a emu yɛ den a ɛko tia ntwitwiridii. Daakye, ɛnam mfiridwuma te sɛ Intanɛt a ɛfa nneɛma ho ne mmara a ɛba fam a wɔbɛkɔ so anya nti, wɔde Modbus RTU ne Ethernet hyɛn gyinabea ahorow a wɔaka abom no bedi dwuma kɛse, na ɛde mmoa a emu yɛ den ama mfiridwuma mu nneɛma a wɔyɛ no ankasa ne nyansa.
Daakye, IoT mfiri pii bɛba, na data a wɔde mena no bɛyɛ asɛm a ɛho hia ma IoT dwumadie. Ɛdenam Modbus RTU ne Ethernet ports a wɔde bɛka abom so no, wobetumi ayɛ IoT mfiri ahorow data a wɔde mena, na wɔadi data a wɔde mena ahiade ahorow a ɛwɔ tebea ahorow mu no ho dwuma. Saa bere yi nyinaa, esiane sɛ wɔayɛ mmara a ɛba fam ne mfiridwuma afoforo nti, data a wɔde mena no bɛyɛ mmerɛw, ayɛ ntɛmntɛm, na ayɛ adwuma yiye. Enti, Modbus RTU ne Ethernet ports a wɔaka abom no bedi dwuma titiriw wɔ daakye IoT dwumadie mu na ɛwɔ dwumadie ho anidasoɔ a ɛtrɛ