一、 引言
RAC2.1-200-300現(xiàn)代工業(yè)的迅速發(fā)展，不斷促進(jìn)著自動化控制技術(shù)及設(shè)備通信技術(shù)創(chuàng)新的發(fā)展。當(dāng)前，PLC、DCS、智能儀表等已廣泛應(yīng)用到現(xiàn)場生產(chǎn)控制系統(tǒng)中，并發(fā)展到由上述設(shè)備相互協(xié)同、共同面向整個生產(chǎn)過程的分布式工業(yè)控制系統(tǒng)。在此系統(tǒng)中，現(xiàn)場總線通信技術(shù)至關(guān)重要。本文就某水利站分布式控制系統(tǒng)項(xiàng)目，介紹上海泗博自動化的Modbus轉(zhuǎn)Profibus-DP協(xié)議網(wǎng)關(guān)設(shè)備的應(yīng)用。
二、 系統(tǒng)組成
1、系統(tǒng)結(jié)構(gòu)
RAC2.1-200-300本系統(tǒng)構(gòu)成如圖1，其中略去了西門子S7-300PLC之外的其它現(xiàn)場級控制設(shè)備。系統(tǒng)上位機(jī)采用橫河CS3000型DCS集散控制系統(tǒng)，實(shí)現(xiàn)對整個水利項(xiàng)目進(jìn)行集中監(jiān)控。下位機(jī)之一采用的是西門子S7-300系列PLC，實(shí)現(xiàn)對現(xiàn)場各種智能儀表，包括現(xiàn)場電機(jī)、智能開關(guān)、變頻器、傳感器等執(zhí)行、檢測設(shè)備的啟?？刂?、信息采集等操作。
圖1 系統(tǒng)結(jié)構(gòu)
RAC2.1-200-300在上圖所示系統(tǒng)結(jié)構(gòu)中，現(xiàn)場各種智能儀表（采用的是Modbus協(xié)議或者各種非標(biāo)協(xié)議，接口為RS485、RS422或者RS232）都能夠通過上海泗博自動化的通用串口（Modbus/RS485/RS422/RS232）轉(zhuǎn)Profibus-DP網(wǎng)關(guān)PM-160連接到西門子S7-300PLC。此時(shí)，網(wǎng)關(guān)PM-160在串口側(cè)的協(xié)議類型為Modbus主站或者通用模式。橫河DCS對西門子S7-300PLC的數(shù)據(jù)采集和監(jiān)控同樣需要使用上海泗博自動化的通用串口（Modbus/RS485/RS422/RS232）轉(zhuǎn)Profibus-DP網(wǎng)關(guān)PM-160，此時(shí)，網(wǎng)關(guān)PM-160在串口側(cè)的協(xié)議類型為Modbus從站。
2、RAC2.1-200-300通信網(wǎng)絡(luò)組成
2.1 Profibus協(xié)議簡介
PROFIBUS 是目前國際上通用的現(xiàn)場總線標(biāo)準(zhǔn)之一，以其獨(dú)特的技術(shù)特點(diǎn)、嚴(yán)格的認(rèn)證規(guī)范、開放的標(biāo)準(zhǔn)、眾多廠商的支持和不斷發(fā)展的應(yīng)用行規(guī)，已成為最重要的和應(yīng)用最廣泛的現(xiàn)場總線標(biāo)準(zhǔn)。
PROFIBUS 現(xiàn)場總線通訊協(xié)議包括三個主要部分：
? PROFIBUS DP：主站和從站之間采用輪循的通訊方式，主要應(yīng)用于自動化系統(tǒng)中單元級和現(xiàn)場級通信。
? PROFIBUS PA：電源和通信數(shù)據(jù)通過總線并行傳輸，主要用于面向過程自動化系統(tǒng)中單元級和現(xiàn)場級通訊。
? PROFIBUS FMS：定義了主站和主站之間的通訊模型，RAC2.1-200-300主要用于自動化系統(tǒng)中系統(tǒng)級和車間級的過程數(shù)據(jù)交換
----商務(wù)熱線---廈門興銳達(dá)自動化設(shè)備有限公司
聯(lián)系人：王文光
++QQ:2851759104
手機(jī)：15359273780
電話：0592-5580707 400-855-5103轉(zhuǎn)001
傳真：0592-5361289
郵箱：2851759103@qq.com
網(wǎng)址：http://www.xmxrdauto.com
RAC2.1-200-300
RAC3.5
RAC2.1
RAC1.2-250-380-A00-W1
RAC2.2-200-450-AP0-W1
RAC2.3-200-380-A00-300A
RAC3.1-150-460-AP0-W1-220
RAC3.1-150A
RAC3.5-150-460-A-OI-Z1-220
RAC3.5-150-460-L-00-WI
RAC3.5-150-460-A-0I-W1
RAC3.5-150-460-A-00
RAC3.5-150-460
RAC3.1-150-460-A-00
RAC2.2-250-460-A-00-WI
RAC2.2-200-460-A-00-W1
RAC2.2-200-460
RAC2.2-150-460-A-OO-WI
RAC2.2-150-460
RAC2.1-200-380A
RAC2.1-150-380-A00-W1
RAC2.1-150-380
RAC3.5-150-460-A00-W12
RAC2.2-150-380-A00-W1
RAC2.2-150-460-A00-W1
RAC2.2-200-380-A00-W1
RAC2.2-200-460-D00-W1
RAC2.2-250-380-A00-W1
RAC2.2-250-460-AP0-W1
RAC2.2-200-380-A00-Z1
RAC2.2-250-380-A00-Z1
RAC2.2-150-460-A00-Z1
RAC2.2-200-460-A00-Z1
RAC2.2-250-460-A00-Z1
RAC2.2-200-380-AP0-W1
RAC2.2-200-460-A00-W1
RAC2.2-250-460-A00-W1
RAC2.2-200-460-AP0-W1
RAC2.2-250-380-API-W1
RAC2.2-200-460-APD-W1
RAC2.2-150-380-AP0-W1
RAC2.2-200-380-A0I-W1
RAC2.2-150-380-A0I-W1
RAC2.2-250-380-A0I-W1
RAC3.1-100-460-A00-W1-220
RAC3.1-100-460-AP0-W1-220
RAC3.1-100-460-APD-W1-220
RAC3.1-100-460-A00-Z1-220
RAC3.1-150-460-A00-Z1-220
RAC3.1-100-460-API-W1-220
RAC3.1-100-460-A0I-W1-220
RAC3.1-100-460-D00-W1-220
RAC3.1-150-460-A00-W1-220
RAC3.1-150-460-AP0-W1-220
RAC3.1-150-460-APD-W1-220
RAC3.1-150-460-API-W1-220
RAC3.1-150-460-A0I-W1-220
RAC3.1-150-460-D00-W1-220
RAC2.2-250-380-A0S-W1
RAC2.2-200-380-A0S-W1
RAC3.1-150-460-A0S-W1-220
RAC2.2-150-380-A0D-W1
RAC2.2-250-380-A0I-Z1
RAC3.5-100-460-A00-W1-220
RAC3.5-150-460-A00-Z1-220
RAC3.5-100-460-A01-W1-220
RAC4.3-400-460-AP0-W1
RAC3.5-150-460-A00-W1-220
RAC3.5-150-460-A00-Z1-220
RAC3.5-150-460-A0I-W1-220
RAC3.1-150-460-100-W1-220
RAC2.1-150-460-A0I-W1-220
RAC3.5-200-460-L00-Z1-220
RAC3.6-150-460-L00-Z1-2
RAC2.3-250-460-L00-W1
RAC2.3-200-460-L00-W1
RAC2.2-200-460-A00-W1
RAC2.2-200-460-L00-W1
RAC3.5-200-460-L00-W1-220
RAC3.5-150-460-L00-W1-220
RAC3.1-150-460-A0I-Z1-220
RAC3.5-150-460-A01-W1-220
256047-02738-A04
256047-02738-A04
234271-10388-A06
232705-16726-A01
233303-05614-A05
72300-02-04-01-01-01-01
NEW BENTLY NEVADA 7279103-01-01-00-01-04-1 PCB CIRCUIT BOARD D326541
Bently Nevada 3300/55 Dual Velocity Monitor 03-04-05-05-00-00-07-00 PLC Module
Bently Nevada 3300/55 Dual Velocity Monitor 330055 500mV/In/Sec PLC Bentley
BENTLY NEVADA 3500/04 EARTHING MODULE New in Sealed bag
BENTLY NEVADA 24145-XX USPP 24145XX
BENTLY NEVADA 90100-02-03-01-02-04-00-00 USPP 9010002030102040
BENTLY NEVADA 3500/25 NSFP 350025
BENTLY NEVADA 72200-04-04-01-04-01-11 USPP 7220004040104011
BENTLY NEVADA 330550-A06-B00 NSPP 330550A06B00
Bently Nevada 3500/25 Enhanced Keyphasor Module
BENTLY NEVADA 18745-04 NSPP 1874504
BENTLY NEVADA 90060-02 USPP 9006002
BENTLY NEVADA CA18745-03 -51-100C 5MM PROXIMITY 7200 18-24V-DC SENSOR B413016
BENTLY NEVADA 30000-00-08-18-02 NSPP 3000000081802
BENTLY NEVADA 30000-00-33-18-02 NSFP 3000000331802
BENTLY NEVADA 30004-02-12-12-02 NSFP 3000402121202
BENTLY NEVADA 30000-00-38-12-02 NSFP 3000000381202
BENTLY NEVADA 300-00-00-38-18-02 NSFP 3000000381802
BENTLY NEVADA 30000-00-25-12-02 NSFP 3000000251202
BENTLY NEVADA 3000-00-08-18-02 NSFP 300000081802
BENTLY NEVADA 30000-00-72-12-02 NSFP 3000000721202
BENTLY NEVADA 3000-00-18-36-02 NSFP 300000183602
BENTLY NEVADA 30000-00-13-18-02 NSFP 3000000131802
BENTLY NEVADA 30000-00-73-18-02 NSFP 3000000731802
BENTLY NEVADA 30000-00-18-18-02 NSFP 3000000181802
BENTLY NEVADA 30000-00-23-18-02 NSFP 3000000231802
BENTLY NEVADA 30000-00-08-36-02 NSFP 3000000083602
BENTLY NEVADA 125768-01 USPP 12576801
BENTLY NEVADA CONTROLLER 3300/01-02-00
BENTLY NEVADA 1900/25-01-00 AIR CONDITIONING VIBRATION MONITOR 110V-AC B328003
BENTLY NEVADA 1900/25-01 TRENDMASTER 2000 VIBRATION MONITOR 85-264 V-AC B329701
BENTLY NEVADA 72050-01-09 USPP 720500109
BENTLY NEVADA PWA87850-01 USPP PWA8785001
BENTLY NEVADA 72050-01-01 USPP 720500101
Bently Nevada System Monitor 3300/03 -01-01 GEB
Bently Nevada System Monitor 3300/03 -01-00 GEB
Bently Nevada 7200 TACH Digital Tachometer Module PLC 72750-03-01-15-00-02
Bently Nevada 3300 System 12 Slot Rack 3300/05 Chassis 3300/05-26-00-01 87860-01
BENTLY NEVADA 3300/01-01-00 USPP 3300010100
Bently Nevada RVDP Vibration Monitor Circuit Board 72711-01-03-01-01-01-15
Bently Nevada Vibration Monitor Circuit Board72564-52-04-03-01-01-01-15PWA 26313
Bently Nevada Vibration Monitor Circuit Board 52-04-03-05-01-01-15 PWA 26313
BENTLY NEVADA 78462-01M USPP 7846201M
BENTLY NEVADA DUAL VELOCITY MONITOR
Bently Nevada 3300/35 Six Channel Temperature Monitor 3300/35-04-02-00-00-00 PLC
BENTLY NEVADA SYSTEM MONITOR VIBRATION 3300/03-01-00 NEW-NO BOX 3300030100
NEW BENTLY NEVADA PWA47576-02 PC BOARD PWA4757602
NEW BENTLY NEVADA PWA46851-02 PC BOARD PWA4685102
Bently Nevada Dual Thrust Monitor 7200 Series 72350-03-04-04-01-01-15
Bently Nevada Dual Thrust Monitor 7200 Series 72850-04-04-01-0-01-00-00-XX
Bently Nevada Ramp Diff Exp Monitor 7200 Series 72646-06-06-01-06-01-01-01-14
Bently Nevada Eccentricity Monitor 7200 Series 72975-03-03-01-01-01-01-01
Bently Nevada 3300/20-01-05-02-00 Dual Thrust Monitor 330020 25-0-25 mils 20 mA
Bently Nevada TK-80 Testing Device
Bently Nevada 7200 EIPP 72975-03-03-01-01-01-01 PLC Eccentricity Monitor Module
Bently Nevada 86497 Interface Module
BENTLY NEVADA 300-00-00-32-18-02 NSFP 3000000321802
BENTLY NEVADA 77589-01-90 NSPP 775890190
BENTLY NEVADA 90225-22-02-01-01-02-02-01-01-02 NSPP 902252202010102B
BENTLY NEVADA 72050-02-01 USPP 720500201
Bently Nevada Comm Gateway RS485 133323-01
Bently Nevada Comm Gateway I/O Module RS232/422 125736-01
Bently Nevada 3300 Series Case Expansion Monitor 3300/48 82803-01 V
BENTLY NEVADA 125760-01 USPP 12576001
BENTLY NEVADA 30001-00-20-18-02 NSPP 3000100201802
Bently Nevada 5 mm Proximitor 7200 Series CA18745-03
BENTLY NEVADA 3300/12-A01-B20-C00 USPP 330012A01B20C00
NEW BENTLY NEVADA 90041-01 PC RELAY MODULE 9004101
BENTLY NEVADA 330100-50-03 USPP 3301005003
Bently Nevada 149992 01 16 Channel Relay Output Module
BENTLY NEVADA 30001-00-11-36-02 NSPP 3000100113602
BENTLY NEVADA CA-90100-03-03-06-03-02-01-01-02 USPP CA90100030306030
BENTLY NEVADA 72108-01-02 USPP 721080102
BENTLY NEVADA 7200 SERIES E1-R ECCENTRICITY MONITOR 72400-01-04 NEW
BENTLY NEVADA 26338-52-04 USPP 263385204
BENTLY NEVADA 3300/10-01-02-00 AC POWER SUPPLY MODULE FOR 3300 SYSTEM
BENTLY NEVADA 30000-00-75-18-02 NSFP 3000000751802
BENTLY NEVADA 30000-00-08-36-02 NSPP 3000000083602
BENTLY NEVADA 3300/15-12-01-01-00-01-00 USPP 3300151201010001
BENTLY NEVADA 3300/20-12-01-02-00-01 USPP 3300201201020001
BENTLY NEVADA VAM-CB100 40027-01 VELOCITY ALARM VIBRATION TRANSDUCER B329088
BENTLY NEVADA VAM-CB100 40024-01 VELOCITY ALARM VIBRATION TRANSDUCER B330083
Bently Nevada
BENTLY NEVADA 3300/03 SYSTEM MONITOR NEW Fast shipping
BENTLY NEVADA 330500-04-00 VELOMITOR *NEW IN A BOX*
BENTLY NEVADA 24583-04 PROXIMITOR *NEW IN A BOX*
BENTLY NEVADA 81725-02 PROXIMITOR *NEW IN A BOX*
BENTLY NEVADA 3500/42M PROXIMITOR/SEISMIC MONITOR (K1-3)
Bently Nevada 3300 System Dual Velocity Monitor 3300/55
BENTLY NEVADA CASE EXP INDICATOR REPLACEMENT KIT # 72300-03-04-02-01-01-15 NEW
Bently Nevada 89998-01 8999801 System Monitor NIOB SAR
Bently Nevada 3300/25-05-14-15-00-01-03-00
Bently Nevada 3300/14-01-20-00
Bently Nevada 3300/35 6 Channel Temperature Monitor P/N 3300/35-02-02-00-00-00
BENTLY NEVADA 30000-00-30-24-02 NSPP 3000000302402
BENTLY NEVADA 30000-00-08-18-02 USPP 3000000081802
BENTLY NEVADA 30000-00-20-36-02 NSPP 3000000203602
BENTLY NEVADA 3300/12-02-22-00 USPP 330012022200
BENTLY NEVADA 18745-02 USPP 1874502
BENTLY NEVADA 18745-04 USPP 1874504
BENTLY NEVADA 3500/25 USPP 350025
Bently Nevada 3300 Series Dual Velocity Monitor 3300/55 PWA 83641-01 N
Bently Nevada 3300 Series Dual Velocity Monitor 3300/55 PWA 83641-01 H
Bently Nevada 3300 Series Dual Velocity Monitor 3300/55 PWA 83641-01 M
BENTLY NEVADA 90050-01-00-00-02-01-01-01 NSPP 9005001000002010
Bently Nevada 3500/92 Comm Gateway Module
BENTLY NEVADA PWA88209-01 NSPP PWA8820901
Bently Nevada Remote Readout Rotor Acceleration 41087-01
Bently Nevada Romis unit
Bently Nevada 3300/55 Dual Velocity 330055 3300/55-01-04-01-01-00-00-06-00
BENTLY NEVADA 72200-02-02-01-01-01-11 VIBRATION MONITOR 72200020201010111
Bently Nevada 3500/42M Proximitor/Seismic Monitor
Bently Nevada 3300 System 10 Slot Rack 3300/05 Chassis 3300/05-24-00-01 PWA87840
NEW BENTLY NEVADA 330780-90-00 PROXIMITY SENSOR 3307809000
NEW 3300/12 BENTLY NEVADA POWER SUPPLY
BENTLY NEVADA 3500 PROXIMITOR/SEISMIC MONITOR MODULE 3500/42M (S3-T-2E)
BENTLY NEVADA SNAPSHOT 2 44953-01
BENTLY NEVADA 30000-00-16-36-02 NSPP 3000000163602
Bently Nevada 3300 Series Tachometer 3300/50 82962-01 AG
Bently Nevada 140471-01 Proximitor Seismic Monitor with Internal Termination
