1746-NI8*************1746-NI8

1746-NI8

在PLC發(fā)展的初期，沿用了設(shè)計(jì)繼電器電路圖的方法來設(shè)計(jì)梯形圖程序，即在已有的些典型梯形圖的基礎(chǔ)上，根據(jù)被控對(duì)象對(duì)控制的要求，不斷地修改和完善梯形圖。有時(shí)需要多次反復(fù)地調(diào)試和修改梯形圖，不斷地增加中間編程元件和觸點(diǎn)，zui后才能得到一個(gè)較為滿意的結(jié)果。這種方法沒有普遍的規(guī)律可以遵循，設(shè)計(jì)所用的時(shí)間、設(shè)計(jì)的質(zhì)量與編程者的經(jīng)驗(yàn)有很大的關(guān)系，所以有人把這種設(shè)計(jì)方法稱為經(jīng)驗(yàn)設(shè)計(jì)法。它可以用于邏輯關(guān)系較簡(jiǎn)單的梯形圖程序設(shè)計(jì)。
用經(jīng)驗(yàn)設(shè)計(jì)法設(shè)計(jì)PLC程序時(shí)大致可以按下面幾步來進(jìn)行：分析控制要求、選擇控制原則；設(shè)計(jì)主令元件和檢測(cè)元件，確定輸入輸出設(shè)備；設(shè)計(jì)執(zhí)行元件的控制程序；檢查修改和完善程序。
產(chǎn)品廣泛應(yīng)用領(lǐng)域：
◇電力行業(yè)電力-電廠輸煤程控系統(tǒng) 電力-電氣化水系統(tǒng)電力-除灰除渣系統(tǒng)化工-鹽化廠冶金-煉鐵高爐系統(tǒng)
◆水利-水電廠監(jiān)控系統(tǒng)汽車制造行業(yè)鋼鐵及鍋爐行業(yè)供水及水處理行業(yè)造紙及印刷行業(yè)玻璃生產(chǎn)及加工行業(yè)
◇電站及小水電控制行業(yè)水泥制品及生產(chǎn)制造行業(yè)鐵路運(yùn)輸裝卸行業(yè)
◆我們售出的產(chǎn)品都經(jīng)過專業(yè)的測(cè)試和認(rèn)證
◇我們的宗旨是：“用服務(wù)與真誠(chéng)來換取你的信任與支持
◆互惠互利，共創(chuàng)雙贏！"我公司愿與國(guó)內(nèi)外各界同仁志士
◇竭誠(chéng)合作，共創(chuàng)未來！

·局域網(wǎng)：是一個(gè)通訊系統(tǒng)，他允許數(shù)臺(tái)彼此獨(dú)立的電腦，在適當(dāng)?shù)姆秶鷥?nèi)，以適當(dāng)?shù)膫鬏斔俾手苯舆M(jìn)行溝通。一般網(wǎng)絡(luò)可依其規(guī)模來分類，通常我們?cè)谵k公室或家中使用的，大都屬于局域網(wǎng)，這種網(wǎng)絡(luò)由于電腦間的距離短，且不必經(jīng)過太多網(wǎng)絡(luò)設(shè)備的中繼，所以感覺上速度較快，但也因此適用范圍較小。
 
·廣域網(wǎng)（WAN）Wide Area Network：和局域網(wǎng)相對(duì)，凡超過局域網(wǎng)范圍的，都可以算為廣域網(wǎng)。
 
·城域網(wǎng)(MAN)Metropolitan ARea Network：在一個(gè)城市范圍內(nèi)操作的網(wǎng)絡(luò)，或者在物理上使用城市基礎(chǔ)電信設(shè)施（如地下電纜系統(tǒng)）的網(wǎng)絡(luò)，有時(shí)從WAN中區(qū)分出來，稱為城域網(wǎng)。
 
·網(wǎng)絡(luò)體系結(jié)構(gòu)：是指通信系統(tǒng)的整體設(shè)計(jì)，它為網(wǎng)絡(luò)硬件、軟件、協(xié)議、存取控制和拓?fù)涮峁?biāo)準(zhǔn)。它廣泛采用的是標(biāo)準(zhǔn)化組織（ISO）在1979年提出的開放系統(tǒng)互連（OSI-Open System Interconnection)的參考模型。OSI參考模型用物理層、數(shù)據(jù)鏈路層、網(wǎng)絡(luò)層、傳送層、對(duì)話層、表示層和應(yīng)用層七個(gè)層次描述網(wǎng)絡(luò)的結(jié)構(gòu)，它的規(guī)范對(duì)所有的廠商是開放的，具有指導(dǎo)網(wǎng)絡(luò)結(jié)構(gòu)和開放系統(tǒng)走向的作用。它直接影響總線、接口和網(wǎng)絡(luò)的性能。常見的網(wǎng)絡(luò)體系結(jié)構(gòu)有FDDI、以太網(wǎng)、令牌環(huán)網(wǎng)和快速以太網(wǎng)等。從網(wǎng)絡(luò)互連的角度看，網(wǎng)絡(luò)體系結(jié)構(gòu)的關(guān)鍵要素是協(xié)議和拓?fù)洹?br>

   
AP10/20 P91 - Windows Server 2003 P91 As a multipurpose server running the Windows Server 2003 operating system with Service Pack 1, the Model P91 server supports hosting I/A Series control stations, data acquisition and processing related to a broad range of applications, file serving capabilities, and the display of graphics and text. It also interfaces with corporate communication networks. The Model P91 server supports a USB mouse or optional USB trackball, an alphanumeric keyboard, up to two annunciator keyboards, annunciator/numeric keyboards, or annunciator panels, and up to four video monitors. The P91 server also supports multiple optional touchscreens. 
 AP50/51 
 PWs 
 WP20/30 
 AW/WP50/51 
 AW/WP70s 
 
AP10/20 P90 - Windows Server 2003 P90 The Model P90 Workstation Server is a 2U high rack-mounted server-class processor running Microsoft Windows Server 2003? operating system. As a multipurpose server running the Windows Server 2003 operating system with Service Pack 1, the model P90 server supports hosting I/A Series control stations, data acquisition and processing related to a broad range of applications, file serving capabilities, and the display of graphics and text. It also interfaces with corporate communication networks.The Model P90 server supports a USB mouse or optional USB trackball, an alphanumeric keyboard, up to two annunciator keyboards, or annuciator panels, and up to four video monitors. The P90 server also supports multiple optional touchscreens. The Model P90 server has an In Xeon? processor and can be configured with up to 1.2 TB of internal hard disk storage and up to 4 GB of ECC DDR-2 SDRAM. The serial attached SCSI (SAS) supports a system disk, expansion disks, or RAID1 or RAID5 hard drive arrays. Client/Server communications are accomplished using the TCP/IP networking protocol. 
 AP50/51 
 PWs 
 WP20/30 
 AW/WP50/51 
 AW/WP70s 
 P79, P80, P81 
 P91 
 P82