研華基于RS485網(wǎng)絡的數(shù)據(jù)采集方案

1、制作者：朱亞光制作者：朱亞光RS-485ADAM-4000 Modbus I/OPre-built Graphic Operation DisplayOperator Interface PanelRS-232ADAM-4520ConverterRS-485微處理器A/DD/AC/PDIDO.+ +RTDRTD+ +mVmVV V+ +mAmA0 05 5D DI IP P19991999采集采集控制控制工業(yè)現(xiàn)場工業(yè)現(xiàn)場監(jiān)控計算機監(jiān)控計算機采集采集控制控制模擬量模擬量 熱電偶熱電偶 輸出輸出繼電器繼電器輸出輸出數(shù)字量數(shù)字量RS-485RS-485中繼器中繼器隔離的隔離的 RS-232/RS-4

2、85RS-232/RS-485轉換器轉換器RS-485RS-485輸入輸入輸入輸入ADAMADAM40124012ADAMADAM40114011ADAMADAM40604060ADAMADAM40504050RS-232RS-232輸出輸出輸入輸入輸入輸入輸出輸出4017123454017123452-WirePressureTransmitter2-WirePressureTransmitter2-WirePressureTransmitterZone1Zone2Zone34017123454-20mA4-20mA4-20mARS-485控制室控制室壓力管線壓力管線延伸延伸5 5公里公里此

3、應用案例為石油管線壓力監(jiān)控項目，通過ADAM-4017檢測管線壓力通過ADAM-4510中繼模塊，使RS-485通訊最遠延伸至10千米+-+- 帶電插拔模塊帶電插拔模塊 EEPROM EEPROM 數(shù)據(jù)電數(shù)據(jù)電壓監(jiān)視電路壓監(jiān)視電路電源反接保護電源反接保護 70oC0oC工作溫度工作溫度：0 0o oC-70C-70o oC C 通訊協(xié)議：通訊協(xié)議：ADAM-4000、ADAM-5000/485和ADAM-5000E均采用RS-485通訊協(xié)議，可以同時連接在同一個網(wǎng)絡上工作工作原理：工作原理：ADAM-4000和ADAM-5000系列均采用主從方式工作，由上位機發(fā)送指令來控制模塊工作I/OI/O

4、配置：配置： ADAM-4000每一個模塊的I/O均已經(jīng)固定，每一個模塊占有一個RS-485地址ADAM-5000模塊由基座和采集模塊組成，每個機組占用一個RS-485地址，每個基座接何種I/O是可隨意定義的。相比ADAM-4000，其更適合現(xiàn)場點數(shù)較多，分部較集中的系統(tǒng)ProcessorRS-485PowerI/OI/OI/OI/OIn/OutIn/OutIn/OutIn/OutADAM-4150Channels: 7 DI / 8 DODigital Input:- Support Dry/Wet Contact:- Support 1 KHz counterDigital Output:

5、- Open drain to 40 V, 0.8A max.- Support pulse outputDual Watchdog Timer3000VDC Isolation voltageADAM-4168Channels: 8 Form A Relay OutputContact Rating: AC:125V0.6A; 250V0.3A DC:30V2A; 110V0.6ABreakdown Voltage : 750 VAC (50/60 Hz)Relay response Time: ON :3 ms Off: 1 msDual Watchdog TimerADAM-4117Ch

6、annels: 8 differential AI Resolution: 16-bit200VDC High common modelnput Type: mV, V, mASampling Rate: 10/100 samples/secDual Watchdog TimerTVS/ESD ProtectionADAM-4118Channels: 8 differential AI Resolution: 16-bitInput type & range: Thermocouple: J/K/T/E/R/S/BVoltage mode: mV, VCurrent mode: mASampl

7、ing Rate: 100 samples/sec.Dual Watchdog TimerTVS/ESD Protection 85oC-40oC Wide Operating Temperature 48 VDC10 VDC Wide Power Source Range200VDCHigh Common Mode Voltageagainst channel voltage deviationAuto-tuning Filteragainst external Noise50Hz/60Hz Filteragainst Power Noise1 KVSurge Input Protection4 KV EFT (Electrical Fast Transient)Protectionagainst Magnetic NoiseConfigurable Digital Filteragainst micro contact error8KV ESD (Electrostatic Discharge)ProtectionAgainst Electrostatic Damage1. 1. 多用于現(xiàn)場環(huán)境的數(shù)據(jù)采集控制多用于現(xiàn)場環(huán)境的數(shù)據(jù)采集控制2. 2. 適用于分散控制和長距離采