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1. 制定設(shè)備運行方案
制定方案就是根據(jù)生產(chǎn)工藝的要求,分析各輸入、輸出與各種操作之間的邏輯關(guān)系,確定需要檢測的量和控制的方法,并設(shè)計出系統(tǒng)中各設(shè)備的操作內(nèi)容和操作順序。據(jù)此便可畫出流程圖。
2. 畫控制流程圖
對于較復(fù)雜的應(yīng)用系統(tǒng),需要繪制系統(tǒng)控制流程圖,用以清楚地表明動作的順序和條件。對于簡單的控制系統(tǒng),可省去這一步。
3. 制定系統(tǒng)的抗干擾措施
根據(jù)現(xiàn)場工作環(huán)境、干擾源的性質(zhì)等因素,綜合制定系統(tǒng)的硬件和軟件抗干擾措施,如硬件上的電源隔離、信號濾波,軟件上的平均值濾波等。
4. 編寫程序
根據(jù)被控對象的輸入輸出信號及所選定的PLC型號分配PLC的硬件資源,為梯形圖的各種繼電器或接點進(jìn)行編號,再按照軟件規(guī)格說明書(技術(shù)要求、編制依據(jù)、測試),用梯形圖進(jìn)行編程。
5. 軟件測試
剛編寫好的程序難免有缺陷或錯誤。為了及時發(fā)現(xiàn)和消除程序中的錯誤和缺陷,需要對程序進(jìn)行離線測試。經(jīng)調(diào)試、排錯、修改及模擬運行后,才能正式投入運行。
6. 編制程序使用說明書
當(dāng)一項軟件工程完成后,為了便于用戶和現(xiàn)場調(diào)試人員的使用,應(yīng)對所編制的程序進(jìn)行說明,說明書應(yīng)包括程序設(shè)計的依據(jù)、結(jié)構(gòu)、功能、流程圖,各項功能單元的分析,PLC的IO信號,軟件程序操作使用的步驟、注意事項等。
PLC應(yīng)用系統(tǒng)設(shè)計實例
機械手控制系統(tǒng)設(shè)計
1. 工藝過程及控制要求
1) 工藝過程
圖6.1所示為一簡易物料搬運機械手的工藝流程圖。該機械手是一個水平垂直位移的機械設(shè)備,其操作是將工件從左工作臺搬運到右工作臺,由光耦合器VLC來檢測工作臺上有沒有工件。機械手通常位于原點,它的動作全部由氣缸驅(qū)動,而氣缸則由相應(yīng)的電磁閥控制。其中,上升下降和左移右移分別由雙線圈二位電磁閥控制,放松夾緊由一個單線圈二位電磁閥(稱為夾緊電磁閥)控制。
2) 控制要求
機械手整個搬運過程要求都能自動控制。在啟動過程中能切換到手動控制及自動控制或半自動控制(又稱單周期控制),以便對設(shè)備進(jìn)行調(diào)整和檢修。圖6.2是機械手控制系統(tǒng)的邏輯流程圖。系統(tǒng)啟動之前,機械手處于原始位置,條件是機械手在高位﹑左位。
ALPHA GETRIEBEBAU SP-060S-MF1-5-?0B1-2S USPP SP060SMF150B12?S
ALPHA GETRIEBEBAU LP090-M01-7-11?1-000 USPP LP090M01711100?0
ALPHA GETRIEBEBAU LP090-MO1-10-1?11 USPP LP090MO110111
ALPHA GETRIEBEBAU PRECISION GEARHEAD SP 140-MF1-10-121?-000 *USED*
Alpha Getriebebau SP 060-SX1-10-111?-001
Alpha Getriebebau Gear Reducer SP210-M #13096
Alpha Getriebebau SP 180-IS1-003 A09 PG 220 Inline Gear Reducer SP180IS1003A09
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NEW ALPHA GETRIEBEBAU GmbH GEAR MOTOR # SPF-90-S1-7
ALPHA GETRIEBEBAU GMBH TP 110-MF1-10-071?-000 10 RATIO GEAR REDUCER
ALPHA LP 070-M01-10-111?-000 ALPHA GETRIEBEBAU
AMETEK 160psi Gauge
AMETEK PITTMAN M642 SERVO MOTOR With ENCONDER
Ametek Multimeter Circuit Board Model 90B1
AMETEK DYCOR Q100M
AMETEK DYCOR Q100N
Pittman / Ametek Model: GM9413G721 Servo Motor. 218.4:1 Ratio. 24 VDC W
AMETEK 0 - 10 LBS. FORCE GAUGE L-10
Ametek Panalarm 8 Pin Alarm Relay with Light Module 120 Volts ACS-8
USG AMETEK PRESSURE GAUGE SS RC1 150 , 1500PSI
Ametek Lamb AC/DC Vacuum Motor/Blower, Tangential, 2 Stages
Blower MOTOR for spa hot tub Ametek Lamb 1HP 120V 6.8A
Replace Brett Aqualine Waterway & Max Air Comet Blower
116312 AMETEK LAMB MOTOR 2 STAGE NEW FAST SHIP
PANALARM AMETEK PD24 NOVATONE ELECTRONIC AUDIBLE ALARM ,NEW
119413-13 Lamb Ametek Vacuum Motor 116336 116116 NEW
Ametek 6013-MSA-1 Moisture Sensor. Brand New!
Ametek Lamb Motor 120 Volts 116392-00 Clarke 44906A Pacific S591P Tennant 130415
NIB AMETEK WINDJAMMER MINIJAMMER BRUSHLESS DC BLOWER 119378-52 5.5A MAX 24VDC
Ametek Lamb Armature and Bracket Kit for motor 469455 Lux Extreme
RIS AMETEK ET-1215 VOLTAGE ALARM
Ametek Stainless Steel Diaphragm Seal SJ 2000 PSI
1492-M5X5H1-END
GENUINE APC Symmetra Replacement Battery SYBTU1-PLP C10 NEW for SYBT4
Intel FPPUPS120 APC AX150UPS-120P Rack-Mount UPS
APC Smart-UPS SMT1000RM2U 1000VA Rack-mountable UPS SMT1000RM2U
APC Smart-UPS SUA1500US 1500VA 1500VA TWR 120V LIN
Agilent / HP 11857D Test Port Cables, APC-7, 50 Ohms (matching). Warranty.
NEW APC SUA1500I Smart Standalone Power Supply with Serial & Usb Port - 8 outlet
APC Cabinet W/AP9607 UPS Interface Exp. Mod#2200 Clean
APC NETSHELTER 42U AR2101BLK BLACK RACK SERVER CABINET look call for details
APC AP8941 Rack PDU 2G, Switched, ZeroU
APC Smart-UPS SMT1500RM2U 1440VA 1 kW Rack-mountable UPS 0.12 Hour Full Load USB
Used APC Smart-Ups 1500 SAU1500 980W
200 APC Signaling UPS USB to RJ45 RJ50 Enthernet Cable
200 APC Signaling UPS USB to RJ45 RJ50 Networking Cable
APC Smart-UPS 1000VA SUA1000RM1U
SMX1000 Smart-UPS X 1000VA Rack/Tower American Power Conversion-APC
GXT1500RT-120 Liebert 120V Eight Outlet UPStation!
APC Symmetra Replacement Battery Cartridge SYBT2 NEW
SYMIM5 Symmetra LX Intelligence Mod American Power Conversion-APC
APC 48V EXTENDED BATTERY PACK (UPS) RM TOWER-SMART UPS X SERIES P/N SMX48RMBP2U
APC Smart-UPS 1500VA Tower UPS SMT1500
APC SUA1500R2X138 Smart UPS 1500VA 120V
APC SUA1500US 1500VA Smart-UPS 120V NAFTA
APC 1MRF28H54BV MRF 2800 RECTIFIER
Agilent 11857D 50 ohm APC-7 Test Port Cable for 8753D/E
APC Smart-UPS 1000 VA Tower 670W 6.1 Minute Full Load SMT1000 6.1 Min Full Load
APC Smart-UPS 3000 XLM SUM3000RMXl2U Rackmount UPS System
APC Symmetra RM 8-12kVA Battery Module Hot-swappable SYBT3
APC SMT1500RM2U Smart-UPS 1500VA LCD RM2U 120V
5131:APC-Ameri?can Power Conversion:SU5?000RMT5U:Misc:?Power Supply
APC AICHI PUMP MC-32S4L NSFP MC32S4L
APC AP7932 Rack PDU Switched, Zero U 30A
ROHL PERRIN ROWE U.3531X-APC TUB FILLER TUB CHROME NEW
Agilent / HP 11857D Test Port Cables, APC-7, 50 Ohms. Warranty.
NEW AKAI APC40 ABELTON CONTROLLER AND SOFTWARE FOR PRO DJ CLUB STAGE MUSICIANS
APC SMX1000 Smart-UPS 800 Watts 1000 VA 120V 2U Rack Tower LCD System
APC SYMIM5 Symmetra LX Intelligence Mod
APC SUA1000 USPP SUA1000
APC RBC12 SmartUPS Replacement Battery Cartridge (2200/3000/500?0)
APC SmartUPS Replacement Battery Cartridge SU1000/SU3000/?SU5000 RBC44 NEW
APC NO:640-0734G PC BOARD REV-8 {ITEM TAKEN OUT OF NEW PRODUCT}
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6600-199 *NEW* OE Solenoid for Prestolite, Ametek 12V
AMETEK / M & G DIVISION 316L NEW TYPE AB STAINLESS STEEL DIAPHRAGM 316L
Stroboscope, strobette, Model 964A, Ametek 200-6000 flash/minute
5 Used Ametek 300 psi gauges 4-1/2" 1/4 ANPT
AMETEK 120 Volt Air blower motor for spa / hot tub **
AMETEK Air Volume Control !!!ALL OFFERS WILL BE CONSIDERED!!! FS
Analog Ametek 300 psi Pressure Gauge
AMETEK/HUNTER SPRING ML2918 CABLE NEW
Ametek/Rochest?er Loop Isolator Mod #SC2302-1 42 VDC Max 1072-307 (NIB)
AMETEK DIAPHRAM SG 316L
Ametek/US Gauge Solfrunt Pressure Gauge Fig #1981 0-160# 4-1/2" 1/2" ANPT (NIB)
Ametek/US Gauge Solfrunt Pressure Gauge Fig #1980 0-160# 4-1/2" 1/2" ANPT (NIB)
AMETEK DREXELBROOK SENSOR
AIRCRAFT DC9/MD80 HYD FLUID QUANTITY IND P/N SRL-12J
AIRCRAFT DC9/MD80 LOADMETER IND P/N 8AW61LAS1
AMETEK PANALARM SC10-120A USED 8 PIN ALARM RELAY SC10120A
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*AMETEK 3959724
*AMETEK 33505
Ametek Power Controller - Model SCPF1 Series
# AMETEK. PRESSURE / TEMP GUAGE. C - PT 1X810. 2 - 1/2 " PT
AMETEK-PANALAR?M 90-AX1 24VDC WB-3 SIGNAL APPLIANCE SYSTEM UNIT NEW
Ametek Hunter Spring 2200 Grams Force Gauge
Ametek USG Gauge 0-30 IN. HG. Vacuum
Ametek USG Pressure Gauge 0-100PSI 4-1/4" Face
AMETEK SPTV4.8X140 1/8" PRESSURE TRANSDUCER 1.2 TO 4.8 PSIG RANGE
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GOOD USED AMETEK DREXELBROOK ZTRON OUTPUT MODULE 402-3200 4023200
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Ametek Liquid Filled Gauge 30 in Hg X 0 PSI 4-1/2" Face Stainless Steel
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SAZ-4201ER *NEW* OE Solenoid for Prestolite, Ametek 12V
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1492-M5X5H1-END
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