研华基于RS485网络的数据采集方案

1、制作者：朱亚光制作者：朱亚光RS-485ADAM-4000 Modbus I/OPre-built Graphic Operation DisplayOperator Interface PanelRS-232ADAM-4520ConverterRS-485微处理器A/DD/AC/PDIDO.+ +RTDRTD+ +mVmVV V+ +mAmA0 05 5D DI IP P19991999采集采集控制控制工业现场工业现场监控计算机监控计算机采集采集控制控制模拟量模拟量 热电偶热电偶 输出输出继电器继电器输出输出数字量数字量RS-485RS-485中继器中继器隔离的隔离的 RS-232/RS-4

2、85RS-232/RS-485转换器转换器RS-485RS-485输入输入输入输入ADAMADAM40124012ADAMADAM40114011ADAMADAM40604060ADAMADAM40504050RS-232RS-232输出输出输入输入输入输入输出输出4017123454017123452-WirePressureTransmitter2-WirePressureTransmitter2-WirePressureTransmitterZone1Zone2Zone34017123454-20mA4-20mA4-20mARS-485控制室控制室压力管线压力管线延伸延伸5 5公里公里此

3、应用案例为石油管线压力监控项目，通过ADAM-4017检测管线压力通过ADAM-4510中继模块，使RS-485通讯最远延伸至10千米+-+- 带电插拔模块带电插拔模块 EEPROM EEPROM 数据电数据电压监视电路压监视电路电源反接保护电源反接保护 70oC0oC工作温度工作温度：0 0o oC-70C-70o oC C 通讯协议：通讯协议：ADAM-4000、ADAM-5000/485和ADAM-5000E均采用RS-485通讯协议，可以同时连接在同一个网络上工作工作原理：工作原理：ADAM-4000和ADAM-5000系列均采用主从方式工作，由上位机发送指令来控制模块工作I/OI/O

4、配置：配置： ADAM-4000每一个模块的I/O均已经固定，每一个模块占有一个RS-485地址ADAM-5000模块由基座和采集模块组成，每个机组占用一个RS-485地址，每个基座接何种I/O是可随意定义的。相比ADAM-4000，其更适合现场点数较多，分部较集中的系统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. 多用于现场环境的数据采集控制多用于现场环境的数据采集控制2. 2. 适用于分散控制和长距离采