CIMR-M5N2015

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描述

CIMR-M5N2015

合理選擇PLC,對于提高PLC在控制系統(tǒng)中的應用有著重要作用。本文就PLC的機型、I/O、存儲器類型及容量和編程器、外部設備幾個方面來說明選擇PLC應該考慮的因素,并給出了兩個PLC應用的實例。文章中盡管歸納了一些選用PLC的方法,但在實際工作中還一定要依據實際情況做出適當的調整,以便設計出滿足期望的工業(yè)控制系統(tǒng)。
? ? 隨著PLC在工業(yè)控制中的推廣普及,PLC產品的種類越來越多,其結構型號、性能、容量、指令系統(tǒng)、編程方法等各不相同,適用場合也各有側重。因此,合理選擇PLC,對于提高PLC在控制系統(tǒng)中的應用有著重要作用。
? ? 一、機型的選擇
? ? 我國市場上流行的有如下幾家PLC產品:
? ? 1.施耐德公司,包括早期天津儀表廠引進莫迪康公司的產品,目前有Quantum、Premium、Momentum等產品;
? ? 2.羅克韋爾公司(包括AB公司)PLC產品,目前有SLC、MicroLogix、ControlLogix等產品;
? ? 3.西門子公司的產品,目前有SIMATICS7-400/300/200系列產品;
? ? 4.GE公司的產品;
? ? 5.日本歐姆龍、三菱、富士、松下等公司產品,其中使用較多的是三菱公司F1、F2、FX2等系列產品。
? ? PLC機型選擇的基本原則是:在功能滿足要求的前提下,選擇最可靠、維護使用最方便以及性能價格比最優(yōu)的機型。通常做法是,在工藝過程比較固定、環(huán)境條件較好的場合,建議選用整體式結構的PLC;其他情況則最好選用模塊式結構的PLC;對于開關量控制以及以開關量控制為主、帶少量模擬量控制的工程項目中,一般其控制速度無須考慮,因此,選用帶A/D轉換、D/A轉換、加減運算、數據傳送功能的低檔機就能滿足要求;而在控制比較復雜,控制功能要求比較高的工程項目中(如要實現PID運算、閉環(huán)控制、通信聯網等),可視控制規(guī)模及復雜程度來選用中檔或高檔機(其中高檔機主要用于大規(guī)模過程控制、全PLC的分布式控制系統(tǒng)以及整個工廠的自動化等)。根據不同的應用對象,表1列出了PLC的幾種功能選擇。

產品承諾:
保?證?全新原裝進口,
保?證?安全準時發(fā)貨,
保?證售后服務質量,
優(yōu)勢價格,大量現貨。

主營DCS系統(tǒng)配件
機器人系統(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,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質保 大量現貨? 國內實力庫存商家

Parker Pressure Comp Flow Control 3000PSI # PCMS1600S

Parker Pressure Comp.Hydraulic Flow Control 3000PSI PCM

Parker Hydraulic Pump Pressure Comp Piston 32GPM P2075P

PARKER HYDRAULIC PRESSURE REDUCING VALVE~NEW~SURPL?US~

PARKER 422-8-RL MEDIUM PRESSURE HYDRAULIC HOSE 1/2″

PARKER PR3MM Pressure Reducing Valve

NEW PARKER R6PH PRESSURE CONTROL VALVE

3 Parker Low Pressure Regulators SQMICRO130E602P?FSMM

Parker Hydraulic Pressure/Temp CompFlow Control FG3PKCA

PRESSURE REDUCING GAUGE VERIFLO PARKER NPR73530W4PXFSM

Parker Proportional Pressure Valve NIB

New Overstock Parker A4ADB Pressure Regulator Valve

Parker Low Pressure Regulator SQ2MICRO0302PFS?MM New

NEW PARKER PRESSURE SWITCH SCPSD-250-04-17

Parker 240′ 1/2″ Low Pressure 250 PSI Rubber Hose 801-8

PARKER PRESSURE REGULATOR VALVE – REFRIGERATION

Parker RAS-600-S4 RAS600S4 RAS600S Pressure Valve NEW

Parker Hydraulic Pressure Compensated Flow Control

Parker RAS600S Pressure Control Valve RAS600S

Parker Flo Con SportII37 Refrigerant Pressure Regulator

Parker Flo Con SportII79 Refrigerant Pressure Regulator

Parker Flo ConSportII911 Refrigerant Pressure Regulator

Parker PRC3MM Pressure Control Valve Hydraulic

8523 NEW Parker A4AD Pressure Regulator

Parker 214′ 1/2″ Low Pressure 250 PSI Rubber Hose 801-8

2658 NEW PARKER A4AD Refrigerant Pressure Regulator

Parker PR-1-4114-2 High Purity Pressure Regulator
One-day shipping available

PARKER PSB040AF1A HYDRAULIC PRESSURE SWITCH NIB

Parker PR-3-4118-1 ?” PTFE Pressure Regulator

Parker 959100W2PFSMM High Pressure Regulator NEW

PARKER PRESSURE DRIVER CARD 801179 **NICE**

PARKER PRM3AA25KNS 50 PRESSURE CONTROL VALVE New

Parker Hydraulic Pump Pressure Comp Piston 5GPM #PAV10

Parker BC10BMV 10 pressure control Valve NNB BC10BMV10

PARKER PRDM3PP02SVS PRESSURE REDUCING VALVE 315 BAR NEW

Parker Hydraulic Pump Pressure Comp Vane 45D10L1A1B1AC

Parker Veriflo Pressure Regulator

Parker 3000 PSI Hyd Pressure Cylinder 03.25JJ2HTS #6078

Parker Oildyne OE4-SBHS-5K Hydraulic Pressure Switch

Parker Convum MPS-R3F5-NC Stainless Pressure Sensor New
Expedited shipping available

PARKER A810E FLO-CON OUTLET PRESSURE REGULATOR 85272

New Parker Manapak Pressure Reducing Valve PRM3PA17KN32

PARKER REGULATOR BACK PRESSURE, BR-3-1168-2

Parker Low Pressure Regulator SQMICRO130E602P?FSMM New

Parker Low Pressure Regulator SMSQ2MICRO30102 New

Parker Hyd Pressure Reducing Valve PRDM2PP16SUS (NIB)

NEW PARKER VERIFLO DSG HP PRESSURE REDUCING REGULATOR

NEW, PARKER PRESSURE REDUCING VALVE PR800SM-20KE

Parker RAS-600-S4 RAS600S4 RAS600S Pressure Valve USED

Parker hydraulic pressure reducing valve FM3DDKN-50

Parker Hydraulic Pressure Reducing Valve

Parker Hydraulic Ring ASB250AF1A4 Pressure transducer

Parker Schrader Bellows Pressure Regulator 3568-2000

7134 NEW Parker A4A Pressure Regulator 1″

Parker Pressure Reducing Valve AR FM3DDKN 55

Parker Pressure Reducing Valve DR FM3DDKN 55

Parker 621B-6 Pressure Control Valve 621B6 USED

Parker PRDM2PP16SVG, Pressure Reducing Valve NEW

Parker PRDM2BB16LVM, Pressure Reducing Valve NEW

Parker PRDM2BB02LNM, Pressure Reducing Valve NEW

Parker PRDM2PP02LNM, Pressure Reducing Valve NEW

PARKER 626092 OILDYNE PRESSURE SWITCH 0E4-SBKS-44K NEW

PARKER HYDRAULIC PRESSURE REDUCING VALVE PRDM2PP16LNS

PARKER PRDM2PP16SVGX79?7 PRESSURE REDUCING VALVE NIB

PARKER HYDRAULIC PRESSURE REDUCING VALVE R6PM

PARKER MODEL A4A PRESSURE REGULATOR 2 1/2″ NEW

PARKER PRM3PP25K HYDRAULIC PRESSURE CONTROL VALVE

Parker Flo-Con By-Pass Pressure Regulator SM080128 NIB

Parker 41975 20-20 Clamp SAE flange high pressure

Parker Pressure Filter F3-15P-1-40SA-E?S-50-XX-11-80

Parker PRM3PAH-20GB Pressure Reducing Valve

Parker PR400SHV Pressure Reducing Valve

NOS! PARKER REMOTE PRESSURE AIR VALVE CWJ12501

NEW Parker Hydraulic Filter 932630Q High Pressure

Parker D39DW11C4N89 75, PRESSURE REGULATION VALVE , NEW

PARKER VERIFLO IR400S4PG PRESSURE REDUCING REGULATOR

NOS! PARKER REMOTE PRESSURE VALVE CC1225B

LOT PARKER VERIFLO PRESSURE TRANSDUCER SWITCH DWYER

Parker Oil Pressure Regulator Control Valve A4AL; *A7

Parker high pressure clamp flange elbow 41775-16-16

Parker 41575 16-16 Clamp SAE flange high pressure 1 in

Parker Pressure Regulator P3NRA1PBPP

Parker 035682000B Pressure Regulator

Parker Veriflo 944AOPLPNOSFSFF High Purity Low Pressure

PARKER HIGH PRESSURE BALL VALVE # BV3H06S2SS1N

PARKER 035662000B PRESSURE REGULATOR 5-125 PSIG NEW

Pressure Pump Inlet Filter **NEW** Part#1J2-5

Parker Flo-Con Pressure Regulator A7-A

PARKER H2 1/2″ SAFETY PRESSURE RELIEF VALVE REFRIGERANT

Parker 73212BN52N00 3/4″ Skinner Pressure Vessel 2-Way

Parker Scrader Bellows Pressure Regulator 035662000B

PARKER FP2AUS14 250 PRESSURE 1.000 STROKES AIR

Parker Veriflo IR4205 Stainless High Pressure Regulator

Parker Veriflo 1/4″ Pressure Regulator (SQ2MICRO130E60?)

PARKER REMOTE PRESSURE VALVE CC1225B 150 PSI DO 1/4″

Parker Pressure Regulator 72-130

PARKER Flo-Con Pressure Regulator A8-AOE

5 PARKER SENSOCONTROL PRESSURE SWITCH SCPSD-600-04-07

3 NEW PARKER MANAPAK PRESSURE CONTROL VALVES PRM2PP07KN

LOT 2 PARKER PRESSURE REGULATOR MASTER PNEUMATIC FILTER

parker bvhp12bss1na HIGH PRESSURE BALL VALVE

Parker PRM3 PP17K Pressure Reducing Valve 150-2500 PSI

NEW PARKER FLO-CON BYPASS HOT GAS PRESSURE REGULATOR A9

PARKER/SCHRADER BELLOWS PRESSURE REGULATOR 035662000B

PARKER FLO-CON A7 PRESSURE REGULATOR 400 PSI

A810E Parker FLOCON 1-3/8″ Outlet Pressure Regulator

2683 NEW Parker 201673 Pressure Regulator

PARKER HYDRAULIC PRESSURE REDUCING VALVE V-21 FT

New Parker CPOM2AAV55X Pilot-Oper. Pressure Check Valve

NIB PARKER BVHP16SSS1NA HIGH PRESSURE BALL VALVE
Expedited shipping available

Parker 035643000B Pressure Regulator NEW Free Shipping

Parker Hydr. Pressure Reducing Module D03 # BD03PNR-A

PARKER 1/4 NPT CONTROLLED PRESSURE SAFETY THUMB LEVER

Parker hydraulic cylinder model C2H19 PRESSURE 3000

New Parker 06E21A18AC Filter Regulator w/Pressure Gauge

Parker 3/8″ S. Air Dual Pressure Switch New

Parker Hannifin Hydraulic Pressure Control Valve 3000

Parker Pressure Switch Male DIN P01909

PRESSURE REDUCING RELIEF VALVE, PARKER #PR101S10-C3F

Parker SensoControl Senso Control SCP-8181 Pressure

NEW PARKER BI-PRESSURE PUMP CONTROL FPS-213

PARKER PRESSURE REDUCING HYDRAULIC VALVE PRM3PB25KN 32

PARKER PRESSURE REDUCING HYDRAULIC VALVE PRM3PAH-20HY

NEW PARKER VERIFLO IR501B6P0140458?0 PRESSURE REGULATOR

Parker grade 10 Hi pressure filter element 10CWC08-033

*NEW* Parker Senso Control Pressure Controller #SCPSD

Parker 1/2″ remote pressure valve SS121050 NIB

PARKER VERIFLO 43200648 PRESSURE TRANSDUCER

MAZAK PARKER PRESSURE REGULATOR UNIT

Parker Veriflo Pressure Regulator Valve 742793

Ewal/Parker Titan II 1/4″ Pressure Actuation Valve

Parker Veriflo Pressure Regulator Valve 45100064 SS

New Parker Veriflo Pressure Regulator 43800745 Series

Parker 71216SN2FU00 Skinner Valve Pressure Vessel

PARKER PRM2PP07LN 42 HYDRAULIC PRESSURE CONTROL VALVE

Parker MPS Convum PRESSURE Switch P6N-PG(11)

Parker sandvik high pressure hydraulic filter housing

2669 NEW Parker A4AZ Inlet Pressure Regulator

PARKER REFRIDGERANT INLET PRESSURE REGULATOR A8 A81

Parker pressure regulator 8311

專業(yè)銷售進口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 一年質保 大量現貨? 國內實力庫存商家


選擇深圳長欣,選擇放心,售后無憂大量現貨,當天順豐發(fā)貨!
主營:本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點經驗。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個大概,以便學習編程時查找);
2、由位控邏輯入手,逐漸增加定時、計數等條件,把或、與、非關系理順;
3、進而練習整數運算、實數運算、類型轉換;
4、量程轉換、PID調節(jié)回路的建立及P、I、D參數的理解(最好是有個物理回路驗證,比如變頻器+電機+測速傳感器);
5、循環(huán)、順序、跳轉等程序控制(盡量避免跳轉,非跳不可時也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅動器系列為主攻。各位電工朋友可根據自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學會一種至于其它的學習起來也就簡單了。