我們新研制出一種用于紙漿白度測定的智能白度儀，該儀表采用西門子公司生產(chǎn)的S7-224 CPU結合軟件功能進行數(shù)據(jù)處理，具有較好的可靠性、重復性、精確度和穩(wěn)定性。為了使其能與其它智能設備之間實現(xiàn)通信，我們將通過現(xiàn)場總線技術把它連接到網(wǎng)絡中，使它成為造紙廠現(xiàn)場總線控制系統(tǒng)的一部分。
2.現(xiàn)場總線的選擇
2.1現(xiàn)場總線技術的選擇
現(xiàn)場總線集控制技術、計算機技術、通信技術于一體，是當今自動化領域技術發(fā)展的熱點之一。這項技術可將多個智能控制儀表連接成網(wǎng)絡系統(tǒng)，實現(xiàn)分布式計算機控制，提高檢測和控制精度，改善系統(tǒng)的動態(tài)響應速度，提高系統(tǒng)安全性，從而得到了廣泛的應用。
近年來，幾種有影響的現(xiàn)場總線技術已在一些特定的應用領域里顯示出各自的優(yōu)勢。在此，我們選定了現(xiàn)為德國和歐洲標準的PROFIBUS（Process Fieldbus）現(xiàn)場總線。一方面由于它是目前數(shù)據(jù)傳輸率快的一種現(xiàn)場總線，傳輸率高可達12Mbps，另一方面它能夠很好的與西門子的傳動設備相配合，并與西門子PLC（Programmable Logic Controller）結合緊密且組態(tài)簡便。
2.2 PROFIBUS現(xiàn)場總線簡介
參照ISO/OSI參考模型,PROFIBUS現(xiàn)場總線只包含物理層、數(shù)據(jù)鏈路層和應用層。由PROFIBUS-DP，PROFIBUS-FMS， PROFIBUS-PA組成PROFIBUS系列。
PROFIBUS-DP：經(jīng)過優(yōu)化的高速、廉價的通信連接，專為自動控制系統(tǒng)和設備級分散I/O之間通信設計，使用PROFIBUS-DP模塊可取代價格昂貴的24V或0～20mA并行信號線。用于分布式控制系統(tǒng)的高速數(shù)據(jù)傳輸。
PROFIBUS-FMS ：解決車間級通用性通信任務，提供大量的通信服務，完成中等傳輸速度的循環(huán)和非循環(huán)通信任務，用于紡織工業(yè)、樓宇自動化、電氣傳動、傳感器和執(zhí)行器、可編程序控制器、低壓開關設備等一般自動化控制。
PROFIBUS-PA專為過程自動化設計，標準的本質(zhì)安全的傳輸技術，實現(xiàn)了IEC1158-2中規(guī)定的通信規(guī)程，用于對安全性要求高的場合及由總線供電的站點。
本設計中采用的是PROFIBUS-DP標準，PROFIBUS-DP（或DP標準）是由歐洲標準EN50170定義的一種遠程I/O通信協(xié)議。DP表示分布式外圍設備，亦即遠程I/O。PROFIBUS-DP還用到了應用層接口（ALI），ALI將過程對象轉(zhuǎn)換為通信對象。
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GE Fanuc servo motor power cable IC800SKCPV050B - 60 day warranty
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GE Fanuc Series 90 Micro Programmable Controller IC693UDR005FP1 In: 24VDC
GE Fanuc PLC Series 90 Micro, IC693UDR001NP1
GE Fanuc PLC Output Module, IC693MDL340E, 120VAC, .5A, 16PT
GE Fanuc PLC Analog Input Card, IC693ALG220G, 4PT Voltage
GE Fanuc PLC Analog Input Card, IC693ALG220D, 4PT Voltage
GE Fanuc IC697CHS782B Series 90-70 17 Slot Rear Mount Rack
GE Fanuc IC693UDR002BP1 Series 90 Micro Programmable Controller
GE Fanuc IC693PWR321CA Power Supply 120/240VAC 30W
GE Fanuc IC693CPU331Y CPU 331 Module
GE Fanuc IC693CPU331S CPU 331 Module
GE Fanuc IC693CPU331N CPU Module 90-30
GE Fanuc IC693CPU323J Base 10 Slot Rack with CPU
GE Fanuc IC693CPU323E Base 10 Slot Rack with CPU
GE Fanuc IC693CPU323D Base 10 Slot Rack with CPU
GE Fanuc IC693CPU323C Base 10 Slot Rack with CPU
GE Fanuc IC693ALG390D 2PT Analog Output Module
GE Fanuc IC693ALG221C Input Analog 4PT Current
GE Fanuc IC693ALG220D 4PT Analog Input Module
GE FANUC IC660EBD101S GENIUS I/O MODULE, IC660TSD100L TERMINAL
GE FANUC IC660EBD101 BLOCK
GE Fanuc IC630MDL311A 24VAC/DC SRCE Input Module 16 Circuits
GE Fanuc D-A7610-4 Board
GE Fanuc A20B-0007-0070-06B Circuit Board
GE FANUC A16B-1212-0222/02A I/O C5
GE Fanuc A14B-0076-B001 Input Unit
GE Fanuc 230VAC Output Module A03B-0819-C158
GE FANUC 10 SLOT BASE EMI ENHANCED IC693CHS391M
FANUC TEACH PENDANT CABLE A660-2004-T284 L=11MEB / YF91-F MR-20LW (B27)
Fanuc Robotics EE-1063-001 Accuflow Counter Input Module
Fanuc Operator Interface Board A20B-1006-0291/02B A20B1006029102B
Fanuc Keypad PCB A20B-1001-0510/02A A35O-IOOI-T5I2/O2 A350-1001-T512/02
FANUC CRT/KB UNIT A05B-2051 - C102
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Fanuc A20B-1007-0540/01A Relay Board
Fanuc A20B-1006-0290/02B Operator Panel Relay Board
Fanuc A20B-1005-0120/03A Power Supply Board
Fanuc A20B-1004-0590/02B Slot Rack Control Chassis
Fanuc A20B-1002-0490/02A Video Signal Board
Fanuc A20B-1000-0472/03A Power Supply Board
FANUC A16B-2203-0830/03A CIRCUIT BOARD CHEAP (C47)
Fanuc A16B-2200-0917/04A Option Board without Daughter Boards
FANUC A16B-2200-0020/05C BASE 2 FANUC A16B-2200-002 BOARD
FANUC A16B-1700-0130 PC BOARD A16B-1700-0130 A16B-1700-0130/02B
Fanuc A16B-1310-0600/02A Purge Control Board
Fanuc A16B-1310-0530/17D Power Input Board
Fanuc A16B-1212-0030/02B Detector Adapter Board
Fanuc A16B-1211-0120/05B CPU Board
Fanuc A16B-1211-0120/04B CPU Board
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Union/Fanuc Power Transformer, # A80L-0001-0339, 1800 VA, ** ** WARRANTY **
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TESTED GE FANUC PLC IC693UDR001RP1 IN 24VDC
TESTED GE FANUC PLC IC693UDR001LP1 IN 24VDC
TESTED GE FANUC PLC IC693UDR001CP1 IN 24VDC
TECNO WASINO LG-6 FANUC NTJ0511A CONTROL PANEL A860-0201-T001 PULSE GENERATOR
TAMAGAWA SEIKI A86L-0027-0001 TS1508N92 OPTICAL SHAFT ENCODER FANUC TAPE DRILL
TAMAGAWA FANUC A90L-0001-0197 5715 READER MOTOR LT 2
TAKISAWA MAC-V3 CNC MACHINE FANUC SYSTEM 6M CONTROL OPERATOR PANEL KEYBOARD
TAKISAWA MAC V2 CNC MILL W/ FANUC 6M ELECTRONIC DIAGRAM
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TAKAHASHI TNC-LO LATHE CONTROL PANEL & FANUC PULSE GENERATOR A860-0201-T001
SW1857C Fanuc High Quality Ceramic Module (1 PER)
STAR RNC-16 CNC LATHE FANUC OPTION A13B-0139-C360 OPERATOR CONTROL PANEL
STAR MAF-42 CNC FANUC BOARD A16B-1211-0280 /03A A16B12110280 A320-1211-T286/02
STAR MAF CNC MACHINE FANUC POSITIONING MODULE PT01A A03B-0801-C051 A03B0801C051
STAR MAF CNC FANUC VELOCITY CONTROL DRIVE UNIT A06B-6050-H102 A20B-1000-0560
STAR KNC -16/20 CNC LATHE FANUC A13B-0129-C038 TERMINAL UNIT A13B0129C038
SPINDLE RPM CONTROL PANEL FANUC CABINET
SPINDLE MOTOR FANUC AC TERMINAL BOX COVER A290-1003-X431 CNC
Soshin EMI Filter off of Fanuc Robocut Wire EDM, Mod # LF3020D-Y1,
Soshin EMI Filter off of Fanuc Robocut Wire EDM, Mod # LF3005A-Y1,
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SANYO REMEX FANUC CONTROL READER RLC174-1B, RLC172-4, RLC170-5
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PLC GE FANUC 90 30 IC693PWR322 24 Vcc
PLC GE FANUC 90 30 IC693MDR390
PLC GE FANUC 90 30 IC693MDL753
PLC GE FANUC 90 30 IC693MDL390 Output
PLC GE FANUC 90 30 IC693CMM302
PLC GE FANUC 90 30 IC693ALG442B
PLC GE FANUC 90 30 IC693ALG390
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PLC GE FANUC 90 30 Centro programmazione e riparazione
PCB Circuit Board, A20B-2100-0220/03A
Original Fanuc 6T-Model "C" Maintenance Manual B-5320
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