l Tshooj No: AA1SJ61BT11

l Product name: Mitsubishi PLC A1SJ61BT11 MELSEC-A Series Siab-Kev Ua Haujlwm Module

l Brand: Mitsubishi

l Place of Origin: Nyiv

l Warranty: 1 Year

l Condition: Original Tshiab nrog kaw lub thawv

l Kev sib kis ceev :156kbps / 625kbps / 2.5Mbps / 5Mbps / 10Mbps (xaiv tau)

l Maximum tag nrho cable extension (qhov siab tshaj qhov kis tau tus mob)

l Ver.1.10

l Ntawm 156kbps : 1200m

l Ntawm 625kbps :900m

l Ntawm 2.5 Mbps :400m

l Ntawm 5 Mbps :160m

l Ntawm 10 Mbps :100m

l Hom chaw nres tsheb :

l Master chaw nres tsheb (Ver.1 master station)

l Chaw nres tsheb hauv zos (Ver.1 chaw nres tsheb hauv zos)

l Ntau kawg ntawm kev sib txuas

l Thaum lub sij hawm tus tswv chaw nres tsheb :64 units

l Tus naj npawb ntawm chaw nres tsheb Lub sijhawm chaw nres tsheb hauv zos :1 mus rau 4 chaw nres tsheb

l Txoj kev sib txuas lus :Tshaj tawm txoj kev xaiv tsa

l Synchronous txoj kev :Frame synchronization txoj kev

l Cov txheej txheem coding :NRZI code (Tsis Rov Qab Los Zero Inverted)

l Hloov kab hom :Tsheb npav (RS-485)

l Hom kev sib kis :HDLC raws

l Txoj kev tswj yuam kev :CRC (X 16 + X 12 + X 5 + 1)

l kev sib txuas lus cable :

l Ver.1.10 tau tshaj CC-Txuas txuas rau cable

l CC-Txuas txuas rau cable (Ver.1.00 tau tshaj)

l CC-Txuas siab siab -kev ua tau zoo cable (Ver.1.00 tau tshaj)

l Tus naj npawb ntawm I / O occupied cov ntsiab lus :32 ntsiab lus (I / O faib: tshwj xeeb 32 ntsiab lus)

l DC5V sab hauv siv tam sim no :0.40A

l Sab nraud qhov ntev

l Qhov siab (H) :130 hli

l Dav (W) :34.5mm ib

l Qhov tob (D) :117.5mm 3

l Pawg :0.25 kg

PLC yog dab tsi?

Before we get too far into technical specifics, let's review how a PLC system operates.

It's a specialized, hardened, computer device designed for use within industrial control systems. It controls devices and equipment by connecting different units and enabling them to work in a coordinated manner.

Dab tsi muab nws lub zog no?

At the core of every PLC is a basic computer processor that gathers various inputs and evaluates them to achieve the desired output. The inputs can be digital or analog. As users can program the system in multiple ways to fit a certain scenario, PLCs within many applications across various industries, including conveyor systems, oil refineries, manufacturing lines and more.

Txawm hais tias cov no yuav yog cov xwm txheej nyuaj dua, xav txog kev sib cuam tshuam ntawm lub teeb hloov yooj yim thiab lub teeb teeb. Los ntawm flipping qhov hloov, tus neeg siv tsuas tuaj yeem tig lub teeb rau lossis tawm. Muaj me me versatility los yog yoog raws hauv daim ntawv thov no.

Tam sim no, hais tias PLC koom nrog kev sib xyaw. Dheev, tus neeg siv tuaj yeem tsim ntau txoj kev tswj hwm. Piv txwv li, nws tuaj yeem ua kom lub teeb ntsais rau lossis tawm lossis ua kom lub teeb tawm ib feeb tom qab nws tig rau. Tam sim no xav txog ntau txhiab lossis kaum tawm txhiab lub voj voog uas txhua tus tau tswj hwm hauv kev sib koom tes. Thaum uas yog ib qho yooj yim piav qhia, qhov tseem ceeb yog qhov PLC ua.

Nws Ua Haujlwm Li Cas?

We've covered that a PLC relies on a computer processor to turn myriad inputs into logic to control a myriad of outputs. Yet, how does this occur?

As the PLC scans inputs from multiple sources, it scans them and internalizes them. Then, it executes the user programming to enact the desired outputs. Next, it communicates any necessary information to a control network such as Modbus or Ethernet IP. Because PLC's are in charge of mission critical systems and there are usually people near machines, a series of diagnostics are run to make sure everything is in order, before it scans the inputs again. This entire process is the "scan cycle." The larger the number of inputs, the larger the PLC program, the longer the scan cycle. The scan cycle is measured in milliseconds, more commonly known as "fast." However, there are some applications where fast isn't fast enough. A Programmable Automation Controller, or PAC, may be needed. A PAC uses multiple CPUs in a single system or chassis to provide parallel processing, or specialized processing of different facets of the application.

Nyob rau hauv lus dag qhov tseem ceeb ntawm cov neeg siv programming, raws li qhov kev zov me nyuam yog dab tsi ua rau PLC tsim cov txiaj ntsig xav tau. Yog tsis muaj nws, PLC tsuas yog lub qhov rooj kim xwb.

Ua li no, PLC feem ntau tau piav qhia tias yog lub khoos phis tawj me me, tshwj xeeb. Nws qhia cov ntsiab lus zoo sib xws nrog cov khoos phis tawj ib txwm muaj, suav nrog kev nco, software, CPU, I / O system thiab ntau dua. Txawm li cas los xij, PLC yog tsim los ua haujlwm hauv ib puag ncig kev lag luam, tswj cov khoom siv thiab cov khoom siv los ntawm cov khoom siv, tshuab thiab cov neeg ua haujlwm, thaum lub computer tus kheej tsim kom muaj nyob hauv koj lub tsev lossis chaw ua haujlwm.

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