選型注意事項(xiàng)
S7-300PLC的選型原則是據(jù)生產(chǎn)工藝所需的功能和容量進(jìn)行選型，并考慮維護(hù)的方便性、備件的通用性，以及是否易于擴(kuò)展和有無(wú)特殊功能等要求。選型時(shí)具體注意以下幾方面：
(1)有關(guān)參數(shù)確定。一是輸入/輸出點(diǎn)數(shù)(I/O點(diǎn)數(shù))確定。這是確定PLC規(guī)模的一個(gè)重要依據(jù)，一定要根據(jù)實(shí)際情況留出適當(dāng)余量和擴(kuò)展余地。二是PLC存儲(chǔ)容量確定。注意當(dāng)系統(tǒng)有模擬量信號(hào)存在或要進(jìn)行大量數(shù)據(jù)處理時(shí)，其存儲(chǔ)容量應(yīng)選大一些。
(2)系統(tǒng)軟硬件選擇。一是擴(kuò)展方式選擇，S7-300PLC有多種擴(kuò)展方式，實(shí)際選用時(shí)，可通過(guò)控制系統(tǒng)接口模塊擴(kuò)展機(jī)架、Profibus-DP現(xiàn)場(chǎng)總線、通信模塊、運(yùn)程I/O及PLC子站等多種方式來(lái)擴(kuò)展PLC或預(yù)留擴(kuò)展口;二是PLC的聯(lián)網(wǎng)，包括PLC與計(jì)算機(jī)聯(lián)網(wǎng)和PLC之間相互聯(lián)網(wǎng)兩種方式。因S7-300PLC的工業(yè)通信網(wǎng)絡(luò)淡化了PLC與DCS的界限，聯(lián)網(wǎng)的解決方案很多，用戶可根據(jù)企業(yè)的要求選用;三是CPU的選擇，CPU的選型是合理配置系統(tǒng)資源的關(guān)鍵，選擇時(shí)必須根據(jù)控制系統(tǒng)對(duì)CPU的要求(包括系統(tǒng)集成功能、程序塊數(shù)量限制、各種位資源、MPI接口能力、是否有
PROFIBUS-DP主從接口、RAM容量、溫度范圍等)，并好在西門子公司的技術(shù)支持下進(jìn)行，以獲得合理的選型;四是編程軟件的選擇，這主要考慮對(duì)CPU的支持狀況，我們的體會(huì)是：STEP7V4.0對(duì)有些型號(hào)的CPU不支持，硬件組態(tài)時(shí)會(huì)發(fā)生故障出錯(cuò)，而STEP7V5.0則不存在這種問(wèn)題。
二、設(shè)計(jì)及使用注意事項(xiàng)
1. 設(shè)計(jì)注意事項(xiàng)
設(shè)計(jì)時(shí)主要應(yīng)注意以下幾方面：
(1)PLC輸出電路中沒(méi)有保護(hù)，因此在外部電路中應(yīng)設(shè)置串聯(lián)熔斷器等保護(hù)裝置，以防止負(fù)載短路造成PLC損壞。熔斷器容量一般為0.5A。
(2)PLC存在I/O響應(yīng)延遲問(wèn)題，因此在快速響應(yīng)設(shè)備中應(yīng)加以注意。MPI通信協(xié)議雖簡(jiǎn)單易行，但響應(yīng)速度較慢。
(3)編制控制程序時(shí)，好用模塊式結(jié)構(gòu)程序。這樣既可增強(qiáng)程序的可讀性，方便調(diào)試和維護(hù)工作;又能使數(shù)據(jù)庫(kù)結(jié)構(gòu)統(tǒng)一，方便WinCC組態(tài)時(shí)變量標(biāo)簽的統(tǒng)一編制和設(shè)備狀態(tài)的統(tǒng)一顯示。
(4)硬件資源。要合理配置硬件資源，以提高系統(tǒng)可靠性。如PLC電源配電系統(tǒng)要配備冗余的UPS不間斷電源，以排除停電對(duì)全線運(yùn)行的不利影響。又如對(duì)電機(jī)的控制回路要進(jìn)行繼電器隔離，以消除外部負(fù)載對(duì)I/O模塊的可能損壞。另外，系統(tǒng)設(shè)備要采用獨(dú)立的接地系統(tǒng)，以減少雜波干擾。
GE Fanuc Series 90 Micro PLC Model # IC693UDR001RP1 W/Plug
GE Fanuc power supply IC693PWR321R w/ Base 5-slot -60 day warranty
GE Fanuc PLC Power Supply, 120/240VAC, 125VDC Std, IC693PWR321U
GE Fanuc PLC Input Card, IC693MDL634C, 24VDC 8PT Pos/Neg Fast
GE Fanuc PLC 10 Slot Base, IC693CHS391L
GE FANUC OUTPUT MODULE IC693MDL330F 120/240 VAC 2 AMP 8 PT
GE FANUC INPUT MODULE IC693MDL240E 120 VAC 16 PT
GE Fanuc IC693PWR322G Power Supply Module 90-30 w/o cover
GE Fanuc IC693PWR322F Series 90-30 Power Supply Module Missing Comms Door
GE Fanuc IC693PWR322D Power Supply Module 90-30
GE Fanuc IC693PWR322C Power Supply Module 90-30
GE Fanuc IC693PWR321Z Power Supply Module 90-30 w/o cover
GE Fanuc IC693PWR321T Power Supply Module 90-30 w/o cover
GE Fanuc IC693PWR321S Series 90-30 Standard Power Supply Module
GE Fanuc IC693PWR321N Power Supply Module 90-30 w/o cover
GE Fanuc IC693MDL753F Output Module 12/24VDC 0.5A 32PT
GE Fanuc IC693MDL740D 12/24VDC Output Module
GE Fanuc IC693MDL645E Input Module
GE Fanuc IC693MDL634C 8PT 24VDC POS/NEG Fast Input Module
GE Fanuc IC693MDL634B 8PT 24VDC POS/NEG Fast Input Module
GE Fanuc IC693MDL330E 8PT 120/240VAC Output Module
ge fanuc ic693mdl330b output
GE Fanuc IC693MDL230C 8PT Isolated Output Module
GE Fanuc IC693MDL230B 8PT Isolated Output Module
GE Fanuc IC693CHS397K 5 Slot Base Module Backplane
GE Fanuc IC693CHS391L 10 Slot Base Module Backplane
GE Fanuc IC693BEM331K Series 90-30 Genius Bus Controller
GE Fanuc IC630MDL375B 115VAC/DC SRCE Output Module 16 Circuits
GE Fanuc IC630MDL325A 115VAC Input Module 16 Circuits
GE Fanuc IC630MDL303A 512-VDC Input Module 32 Circuits
GE Fanuc IC609SJR100C Programmable Controller
GE Fanuc IC600B904K 115VAC Output Rev. 07
GE Fanuc IC200PWR002B Power Supply W/ IC200PWB001C Booster Carrier
GE Fanuc 90-30 Output Module #IC693MDL340G - Nice!
GE FANUC 50E2 E105285 IC693MDL940D Output Relay 2A 16PT
GE FANUC 24VDC 32PT INPUT MODULE IC693MDL655E
GE FANUC 12-24VDC 16PT OUTPUT MODULE IC693MDL740F
GE FANUC 12/24VDC OUTPUT 16PT MODULE IC693MDL740F
GE Fanuc 10 Slot Base w/ CPU #IC693CPU321K - Nice!
GE Fanuc 10 Slot Base w/ CPU #IC693CPU321H - Nice!
Fanuc SDU2 Feedback Module A02B-0236-C204
FANUC ROBOTICS HANDLING TOOL CARD M6.30-2A R-J3iB (B12)
FANUC MAIN BACKPLATE A20B-1002-0860/03B
Fanuc IOU2 FSSB I/O Module A02B-0236-C212
Fanuc IOU1 FSSB I/O Module A02B-0236-C211
FANUC INTERCON CP3A-1MPB-0140-AAB SERVO CABLE ASSEMBLY (B28)
Fanuc ID16C Input Module A03B-0801-C421
Fanuc ID16C Input Module A03B-0801-C121
Fanuc GMF Robotics RC01C Robot Control Module A03B-0801-C462
Fanuc GMF Robotics OD16H Output Module A03B-0801-C449
FANUC ETHERNET CIRCUIT BOARD A16B-2200-0821/04B
Fanuc EE-1063-101-001 Accuflow Counter Unit Board Rev. D
Fanuc EE-1063-101 Accu-Flow Counter Unit Board
FANUC CIRCUIT BOARD A16B-2200-0431/03A WITH ALLEN-BRADLEY 96635301
Fanuc BMD88A1 Remote I/O Terminal Module A03B-0808-C010
FANUC AXIS CONTROL CIRCUIT BOARD 2-AXIS A16B-2200-0252/05C
Fanuc AOA12F Output Module A03B-0819-C159
Fanuc AIF01A I/O Interface Module A03B-0819-C011
Fanuc AID32B1 Input Module A03B-0807-C102
Fanuc A20B-2901-0340/02A Memory Module Daughter Board
Fanuc A20B-2900-0630/04C Serial Daughter Board
Fanuc A20B-2900-0480/02A Memory Daughter Board
Fanuc A20B-2900-0442/02A SLC2 Host Interface Daughter Board
Fanuc A20B-2900-0380/06C Servo Interface Daughter Board
Fanuc A20B-1006-0300/05C Emergency Stop Board
Fanuc A20B-1004-0510/02A Backplane PC Board Module
Fanuc A20B-1003-0340/02A CRT Control Board
Fanuc A20B-1003-0041/01A Operator Panel Connection Board
Fanuc A20B-1003-0040/02B Operator Panel Relay Board
Fanuc A20B-1000-0770-01 Power Supply Unit
Fanuc A16B-2200-03100/03A Graphic Control Board
Fanuc A16B-2200-0310/03A Graphic Control Board
Fanuc A16B-1600-0440/07A Rigid Tapping Board
Fanuc A16B-1600-0440/06A Rigid Tapping Board
Fanuc A16B-1211-0860/04A Memory Board
Fanuc A13B-0154-B001 Optical I/O Link
Fanuc A05B-2452-C901 Fan Unit Assembly
Fanuc A03B-0819-C104 Input Module AID16D without Door
Fanuc A03B-0819-C003 5 Slot Vertical Backplane Module ABU05B
Fanuc A03B-0808-C001 I/O Interface Module BIF04A1
Fanuc A03B-0807-C107 Model A Input Module AIA16G
Fanuc A03B-0807-C102 32pt Input Module
Fanuc A03B-0807-C001 PLC Base Module ABU10A
Fanuc A03B-0801-C104 Interface Module IF01D
Fanuc A03B-0801-C013 I/O Base Unit
Fanuc A03B-0801-C012 I/O Base Unit A20B-1002-0450/02A
FANUC A02B-0162-B516 SERIES 15-MB BACKPLANE ENCLOSURE NICE (C50)
FANUC 4-AXIS CONTROL BOARD A16B-2200-0250/05C
Fanuc 2003-T233 20-Pin Female to Female Cable Assembly
UP TO 2 GE FANUC SERIESONE PROGRAMMABLE CONTROLLERS IC609SJR120B FREE SHIPPING
Union / Fanuc Power Transformer, # A80L-0012-0013, 1100 VA, , WARRANTY
TWO FANUC CIRCUIT BOARDS A13B-0154-B001 A13B0154B001
TWO (2) A20B-2902-0070 FANUC Servo Module
Toyoda Machine Works Machining Center Model FHN50 Fanuc 3000C Program Charts
TOYODA GT-32 CNC LATHE FANUC A20B-1002-0290 BOARD PCB A20B10020290
TOYODA GT-32 CNC LATHE FANUC A03B-0801-C141 OD64A OUTPUT MODULE A03B0801C141
TOYODA GT-32 CNC LATHE FANUC A03B-0801-C122 ID32C INPUT MODULE A03B0801C122
TOYODA FH-45 CNC MILL HANDLE MODE AXIS FEED CONTROL PANEL FANUC A860-0201-T001
TOYODA FH-45 CNC MILL FANUC A03B-0801-C127 ID64D INPUT MODULE CARD
Toyoda FA55D CNC Mill With Fanuc 15M Electrical Diagrams Manual
TOYO FAN T6550 F15 200V FAN T6550F15 FROM FANUC A06B-0813-B002 SPINDLE MOTOR
TOYO ELECTRIC CO., LTD FANUC A90L-0001-0049 T655DF15 TOYO FAN
TOSHIBA BJT A50L-1-0125A 50A TRANSISTOR FüR FANUC SERVO MODULE
TOKO POWER SUPPLY A12F250H2-B A12F250H2B A12F250H2 LMSI
TEXAS INSTRUMENTS FANUC GE PLC OUTPUT MODULE 8 POINT MODEL 305-20T
TESTED SURPLUS FANUC IC693PWR321U GE ANALOG INPUT MODULE
TESTED SURPLUS FANUC IC693MDL646C GE ANALOG INPUT MODULE
TESTED SURPLUS FANUC IC693MDL340D GE ANALOG INPUT MODULE
TESTED SURPLUS FANUC IC693MDL240E GE ANALOG INPUT MODULE
TESTED SURPLUS FANUC IC693ALG221E GE ANALOG INPUT MODULE
TESTED GE FANUC PLC IC693UDR001NP1 IN 24VDC
TECNO WASINO LG-6 CNC LATHE FANUC SERIES O MAINTENANCE MANUAL B-61395E/04 BOOK
TECNO WASINO LG-6 CNC FANUC A20B-0008-0540 (AS IS NO RETURNS) A350-0008-T544
Teach Pendent ABB / Fanuc 14 Pin Ribbon Cable FFC 21cm Long 3.8cm Wide. Sumitomo
Teach pendant station for robots Fanuc Ltd. numerical control systems business
TCA-04B TAPE COMBATIBILITY NX-3 TERM READER FANUC DNC GRECO
TAMAGAWA FANUC A86L-0026-0001 TS1508N66 SHAFT ENCODER
TAKISAWA MAC-V4 CNC FANUC SYSTEM 6M OPERATOR MDI CRT UNIT PANEL A02B-0060-C032
TAKISAWA MAC-V4 CNC FANUC ADD.AXIS (P/C) A20B-0007-0090 E A350-0007-T094 BOARD
Takisawa Machine Tools Electrical Drawing Diagram MAC-V2E Fanuc 10M
TAKISAWA MAC V2 V3 CNC MILL W/ FANUC 6M OPERATION MANUAL
TAKISAWA MAC V2 MILL W/ FANUC 6M PARTS LIST GUIDE CNC
TAKISAWA MAC V2 MILL W/ FANUC 6M LADDER DIAGRAM CNC
TAKISAWA MAC V2 FANUC 6M OPERATOR CONTROL PANEL CNC KEYBOARD
TAKISAWA MAC V2 CNC MILL W/ FANUC 6M OPERATORS MANUAL 1
SUPERMAX MAX-1 REBEL FANUC GR-C1 A16B-2200-0350 A16B22000350 CNC GRAPHIC BOARD
Star SR-16 Fanuc pulse coder
STAR SR- 20 CNC FANUC SERIES 16 18 MAINTENANCE MANUAL
STAR MAF-42 CNC FANUC I/0 I/O BASE UNIT RACK A03B-0801-C006 A03B0801C006
STAR MAF-42 CNC FANUC AXIS MEMORY BOARD A16B-1210-0430 04B 6 MO WARRANTY
STAR MAF CNC FANUC OPTION UNIT A13B-0139-C729 A13B0139C729
|
在線咨詢 
在線客服：0571-87774297
