PR6423/010-010-CN前置傳感器,EPRO使用尺寸TCS基于擁有三至四個(gè)PCI擴(kuò)展槽無源總線的緊湊型SBC，而SCS則基于擁有兩個(gè)PCI擴(kuò)展槽的slim SBC MB總線。PCI擴(kuò)展槽用于一至兩個(gè)基于DSP的數(shù)據(jù)采集和控制模塊。如今每個(gè)TCS都基于Windows(而后是QNX，RT-Linux)。一些應(yīng)用程序在LabView或其他的語言如C上發(fā)展起來。 TCS的核心是具有LAN芯片及256MB內(nèi)存的緊湊型中型尺寸低功率SBC JUKI-511P(GXLV/GX1-233/266/300 32-bit MMX 處理器)。它提供了緊湊型閃存卡(Type2)、EIDE接口和PS/2鍵盤/鼠標(biāo)接口。
PR6423/010-010-CN前置傳感器,EPRO使用尺寸內(nèi)置SVGA/LCD顯示控制器提供了1024*768的解決方案，并提供了音頻接口和TV-OUT功能。數(shù)據(jù)采集和控制模塊包括了DSP、14位ADC和12位DAC。信號(hào)調(diào)理電子器件用于滿足真實(shí)目標(biāo)的需要。根據(jù)構(gòu)造模型作為內(nèi)部發(fā)生器，以14位ADC和12位DAC用于信號(hào)仿真為基礎(chǔ)使用16個(gè)輸入測(cè)量通道用于數(shù)據(jù)采集，此節(jié)點(diǎn)能夠配準(zhǔn)周期信號(hào)并將其顯示在監(jiān)視器上以供分析。外部發(fā)生器基于相似的具有高精確度DAC的compact SBC，而用于此發(fā)生器的節(jié)點(diǎn)則產(chǎn)生外部信號(hào)用于實(shí)現(xiàn)對(duì)真實(shí)數(shù)據(jù)文件的正確仿真或復(fù)雜目標(biāo)信號(hào)的數(shù)學(xué)模型。 SCS的核心是基于兩個(gè)擴(kuò)展槽的Compact MB，并作為管理控制點(diǎn)(SCS)通過10/100M以太網(wǎng)連接到SCS。SBS的尺寸為185*122mm，電源為5V(1.8A)。帶有SBC的輸入信號(hào)調(diào)理電子器件和儀器數(shù)據(jù)采集器及控制模塊嵌入到機(jī)架（chassis）中。 SCS節(jié)點(diǎn)中更復(fù)雜的信號(hào)的建模支持信號(hào)作為數(shù)據(jù)文件或真實(shí)目標(biāo)數(shù)據(jù)的數(shù)學(xué)構(gòu)造和在內(nèi)部或外部發(fā)生器上的信號(hào)建模。SCS的核心基于低功率的slim PC MS-6215和Windows(或Linux)。作為SBC(MS-6351)的Micro LPX MB基于815芯片集和賽揚(yáng)/奔騰3處理器(FC-PGA)。815芯片集集成了顯示高速緩沖SDRAM控制器(支持32位133MHZ SDRAM陣列用于3D圖形顯示)。SCS能夠用于自治模式或二次集成系統(tǒng)上。機(jī)架（chassis）用于MS-6351Micro LPX MB與用于TCS和適應(yīng)硬盤、光驅(qū)、軟驅(qū)一樣，具有同樣的尺寸，它也支持LAN、VGA、USB、揚(yáng)聲器、PS/2鼠標(biāo)和鍵盤。 傳統(tǒng)的10/100M以太網(wǎng)和SCI模塊分別提供了弱相互作用和強(qiáng)相互作用。傳統(tǒng)網(wǎng)絡(luò)(10/100M以太網(wǎng)，F(xiàn)ireWire，USB)作為標(biāo)準(zhǔn)連接用于計(jì)算機(jī)中。串行總線(USB，F(xiàn)ireWire)用于高速I/O上?，F(xiàn)場(chǎng)總線的概念對(duì)于所有電子設(shè)備來說應(yīng)該是透明的。對(duì)于時(shí)間要求不嚴(yán)格的應(yīng)用場(chǎng)合，10/100M以太網(wǎng)(TCP/IP)是個(gè)提供弱相互作用(信息傳遞)的好選擇。leakage of power grid, so that the feeder switch is both reliable and safe. The electrical schematic diagram of mine flameproof vacuum feed switch is shown in Figure 3. 3.2.1 the principle diagram of the total leakage protection system based on additional DC detection additional DC power detection leakage protection is shown in Figure 3, which is mainly composed of three-phase reactor and synchronous transformer T3, zero sequence reactor and zero sequence transformer T2, filter circuit composed of resistance and capacitance, and DC power source. Detect the change of the insulation resistance of the power grid to the ground through the DC power supply attached to the RL channel of the module. When the DC voltage is constant, the measured resistance value changes. When the insulation resistance drops to the action value specified in Table 1, the PLC program call is interrupted for immediate output to make the relay act, and its normally open contact connects the shunt tripping coil of the feeder switch to trip the switch, so as to realize leakage protection, and visually display the resistance value to the ground through the LCD. The additional DC power detection leakage protection system has the advantages of comprehensive protection and no dead zone action, but it also has the disadvantages of non selective action and long action time. For 1140V level, the leakage action time of 1K is not more than 30ms. The selective leakage
