描述

IS2020RKPSG2

可靠性和可維護(hù)性
繼電器控制使用大量的機(jī)械觸點(diǎn), 觸點(diǎn)在開(kāi)閉時(shí)會(huì)產(chǎn)生電弧, 造成損傷并伴有機(jī)械磨損, 使用壽命短, 運(yùn)行可靠性差, 不易維護(hù)。而PLC采用微電子技術(shù), 內(nèi)部的開(kāi)關(guān)動(dòng)作均由無(wú)觸點(diǎn)的半導(dǎo)體電路來(lái)完成。體積小, 壽命長(zhǎng), 可靠性高, 并且能夠隨時(shí)顯示給操作人員, 及時(shí)監(jiān)視控制程序的執(zhí)行狀況, 為現(xiàn)場(chǎng)調(diào)試和維護(hù)提供便利。
PLC控制與單片機(jī)控制的區(qū)別
（1） PLC是建立在單片機(jī)之上的產(chǎn)品，單片機(jī)是一種集成電路，兩者不具有可比性。
（2）單片機(jī)可以構(gòu)成各種各樣的應(yīng)用系統(tǒng)，從微型、小型到中型、大型都可，PLC是單片機(jī)應(yīng)用系統(tǒng)的一個(gè)特例。
（3）不同廠家的PLC有相同的工作原理，類(lèi)似的功能和指標(biāo)，有一定的互換性，質(zhì)量有保證，編程軟件正朝標(biāo)準(zhǔn)化方向邁進(jìn)。這正是PLC獲得廣泛應(yīng)用的基礎(chǔ)。而單片機(jī)應(yīng)用系統(tǒng)則是八仙過(guò)海，各顯神通，功能千差萬(wàn)別，質(zhì)量參差不齊，學(xué)習(xí)、使用和維護(hù)都很困難。
最后，從工程的角度，談?wù)凱LC與單片機(jī)系統(tǒng)的選用：
（1）對(duì)單項(xiàng)工程或重復(fù)數(shù)極少的項(xiàng)目，采用PLC方案是明智、快捷的途徑，成功率高，可靠性好，手尾少，但成本較高。
（2）對(duì)于量大的配套項(xiàng)目，采用單片機(jī)系統(tǒng)具有成本低、效益高的優(yōu)點(diǎn)，但這要有相當(dāng)?shù)难邪l(fā)力量和行業(yè)經(jīng)驗(yàn)才能使系統(tǒng)穩(wěn)定、可靠地運(yùn)行。最好的方法是單片機(jī)系統(tǒng)嵌入PLC的功能。

產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢(shì)價(jià)格，大量現(xiàn)貨。

主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌：ABB???,AB??,GE,FOXBORO,本特利，英維思，伍德沃德，西屋，瑞恩，施耐德，西門(mén)子，摩托羅拉，安川。力士樂(lè)。ACSO，橫河等進(jìn)口品牌。專業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換一年質(zhì)保大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家

Datum Symmetricom PRR-10 GPS DS1 Reference Controller

TimeSource 3000 090-72000-01 C Symmetricom 72010-01 A

Agilent/HP/Symm?etricom 58503B GPS TIME AND FREQ REF REC

Symmetricom TrueTime XLi 1510-652

NEW SYMMETRICOM TIMESOURCE 2700 CDMA PRS NETWORK

TimeSource 2700 090-73000-02 CDMA D/W Symmetricom

Symmetricom DATUM X72

Datum/Symmetric?om SSU-2000 DS1 20 Outputs 23413017-000

Symmetricom DS1 Output Module 23413017-000-0

DATUM SYMMETRICOM GPS LC E1 FRAMER OCXO

HP/Symmetricom 58503A GPS Time and Frequency Receiver

TrueTime Symmetricom XL-DC GPS Clock Rubidium IRIG-B N8

HP AGILENT 58502A SYMMETRICOM DISTRIBUTION AMPLIFIER

SYMMETRICOM 090-71000-02 TIMESOURCE2500 ST1 UN

Symmetricom XLi Time Frequency OCXO Master Clock 1PPS

TrueTime Symmetricom NTS-200 GPS Network Master Clock

TrueTime Symmetricom NTS-200 GPS Master Network Clock

Bancomm / Symmetricom PC03V VMEbus Time Code Processor

Datum/Symmetric?om bc635VME Time&Frequency Processor,VME

TrueTime Symmetricom TimeVault GPS Network Master Clock

SYMMETRICOM 090-61010-01 SECURE7 HS OPT/LNG RCH

Bancomm / Symmetricom PC26V VME LED Display PCB

TrueTime Symmetricom NTS-200 Network Master GPS Clock

Symmetricom TrueTime NTS-200 Network Master GPS Clock

TrueTime Symmetricom NTS-200 Network Master GPS Clock

Symmetricom NTBW50AA 090-03845-02 Voltage Timing Module

SYMMETRICOM DATUM TIME CODE CONVERTER IRIG MODEL 9400

Symmetricom 090-45190-01 DCD-519 SHELF DIGITAL CLOCK

SYMMETRICOM Model: Z3827A Remote GPS Receiver/Antenn?a

Symmetricom 090-58537-01 GPS ACTIVE SMARTSPLITTER 4PORT

SYMMETRICOM 090-61020-01 SECURE7 HS ELECL CH UN

SYMMETRICOM 090-58537-01 GPS ACTIVE SPLITTER 4 PORT

Symmetricom GPS Timing Antenna 58534A-H01

TrueTime Symmetricom NTS-90 GPS Network Clock NTP

RUBIDIUM SYMMETRICOM EFRATOM LPRO-101 10Mhz Oscillator

Symmetricom Timehub 5500 Expansion LOT 093-55505-02 tm

Symmetricom 58521A GPS Cable w/ Extras

Symmetricom 58529A GPS Line Amplifier with L1 Bandpass

SYMMETRICOM 090-61030-01 SECURE7 DS0 DATAPORT

SYMMETRICOM 090-61902-01 SECURE7 PWR CONVERTER

Datum Symmetricom GPS Antenna 5V L1 SMA Male 8500-0080

SYMMETRICOM 58529A LINE AMPLIFIER W/L1 BANDPASS FILTER

New Symmetricom 090-45014-02 Sync SAI Assembly f6d3

RUBIDIUM SYMMETRICOM EFRATOM LPRO-101 10Mhz Oscillator

Symmetricom GPS 1:2 Input 2-Way Active Splitter 58535A

Symmetricom 58529A GPS Line Amplifier

SYMMETRICOM 58532A GPS L1 ANTENNAE ASSEMBLY

Symmetricom GPS 12V L1 Antenna 142-614-50 AT575 * NEW!

Symmetricom Z3801A GPS Install & User’s Guide

Symmetricom Model Z3827A Timing Receiver Unit

SYMMETRICOM 089-40013-01 Motherboard ST 3 DCD 40013-01

SYMMETRICOM 090-40010-01 Clock Input Unit DCD 40010-01

SYMMETRICOM 090-40014-01 Fuse & Alarm Unit DCD 400 FA

SYMMETRICOM 090-40015-01 Matrix Control Unit DOCPBF03AA

Datum Symmetricom Time Frequency Processor bc635VME VME

Nokia Symmetricom EXT GPS Antenna 469357A New

Lucent/Symmetri?com OMQ 408645968 Board 5 MHz Oscillator

SYMMETRICOM 090-41914-02 FUSE ALARM INTERFACE DCD AI CD

Symmetricom GPS 12V Outdoor Antenna 142-614-50 AT575

Symmetricom TimeExpander Network Timing Expander Manual

SYMMETRICOM 090-40011-01 Toc Unit DCD 400 40011-01

Symmetricom GPS Antenna Bracket 093-00001-01

Symmetricom 58532A N type female GPS antenna antenne

NEW SYMMETRICOM GPS FREQUENCY STANDARD SPLITTER 58535A

Symmetricom GPS/VOLUTE ANTENNA BRACKET 093-0000-01 NEW

SYMMETRICOM 090-40012-02 TOTA Unit DOCPBC15AA 40012-02

SYMMETRICOM TMSL , 090-40010-01 , D0CPBA03AA , 40010-01

SYMMETRICOM 090-71000-11 TS2500 WIRE WRAP CONNCTR
HP/Symmetricom 58534A GPS Timing Antenna

SYMMETRICOM , 090-45015-01 ISS.A REV-G , D0PQABJ1AA

Symmetricom 58532A N type female GPS antenna antenne

SYMMETRICOM 090-40013-01-IS?S-A

Symmetricom / HP 58538A Lightning Arrestor DC-2.5 GHz

Symmetricom GoWide 9.2 Go Wide Modem Router 10/100M

SYMMETRICOM 090-45098-01 DCD-523 FILLER CARD

Symmetricom Telecom Solutions 090-40012-02 Iss A TOTA

Symmetricom Telecom Solutions 090-40011-02 Iss A TOCA

Symmetricom Telecom Solutions 090-45015-01 ISS.A MCA-5

Symmetricom Telecom Solutions 090-40010-01 CI DCD

Symmetricom Telecom Solutions 090-45014-02 ISS B SAI

Symmetricom Telecom Solutions 090-40022-07 iss A TOGA

SYMMETRICOM 090-61050-01 MICPROCESSOR UNIT SOC1NNE

專業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊

PLC模塊，可編程控制器，CPU模塊，IO模塊，AI模塊，通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換一年質(zhì)保大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家

IS2020RKPSG2

描述

相關(guān)產(chǎn)品