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1.原裝正品
2.誠(chéng)信交易
3.一年質(zhì)保
4.15天包退換
DCS,（Distributed Control System）分散控制系統(tǒng)的簡(jiǎn)稱，國(guó)內(nèi)一般習(xí)慣稱之為集散控制系統(tǒng)。DCS是一個(gè)由過程控制級(jí)和過程監(jiān)控級(jí)組成的以通信網(wǎng)絡(luò)為紐帶的多級(jí)計(jì)算機(jī)系統(tǒng)，綜合了計(jì)算機(jī)，通信、顯示和控制等4C技術(shù)，其基本思想是分散控制、集中操作、分級(jí)管理、配置靈活以及組態(tài)方便。DCS具有以下特點(diǎn)：
（1） 高可靠性。由于DCS將系統(tǒng)控制功能分散在各臺(tái)計(jì)算機(jī)上實(shí)現(xiàn)，系統(tǒng)結(jié)構(gòu)采用容錯(cuò)設(shè)計(jì)，因此某一臺(tái)計(jì)算機(jī)出現(xiàn)的故障不會(huì)導(dǎo)致系統(tǒng)其他功能的喪失。此外，由于系統(tǒng)中各臺(tái)計(jì)算機(jī)所承擔(dān)的任務(wù)比較單一，可以針對(duì)需要實(shí)現(xiàn)的功能采用具有特定結(jié)構(gòu)和軟件的專用計(jì)算機(jī)，從而使系統(tǒng)中每臺(tái)計(jì)算機(jī)的可靠性也得到提高。
�。�2） 開放性。DCS采用開放式，標(biāo)準(zhǔn)化、模塊化和系列化設(shè)計(jì)，系統(tǒng)中各臺(tái)計(jì)算機(jī)采用局域網(wǎng)方式通信，實(shí)現(xiàn)信息傳輸，當(dāng)需要改變或擴(kuò)充系統(tǒng)功能時(shí)，可將新增計(jì)算機(jī)方便地連入系統(tǒng)通信網(wǎng)絡(luò)或從網(wǎng)絡(luò)中卸下，幾乎不影響系統(tǒng)其他計(jì)算機(jī)的工作。
5.優(yōu)勢(shì)型號(hào)如下：
1756-L1M2/A Logix5550 Processor Allen-Bradley
1756-L1M3/A Logix5550 Logix5550 Processor Allen-Bradley
1756-L55M12/A 1756-L55/A, 1756-M12/A Logix5555 Processor, 750KB memory, Series A Allen-Bradley
1756-L55M13/A 1756-L55/A, 1756-M13/A Logix5555 Processor, 1.5 MB memory, Series A Allen-Bradley
1756-L55M14/A 1756-L55/A, 1756-M14/A Logix5555 Processor, 3.5 MB memory, Series A Allen-Bradley
1756-L55M16/A 1756-L55/A, 1756-M14/A Logix5555 Processor, 7.5 MB memory, Series A Allen-Bradley
1756-L61/A Logix5561 Logix5561 Processor - 2MB Allen-Bradley
1756-L61/B Logix5561 Logix5561 Processor - 2MB Allen-Bradley
1756-L62/A Logix5562 Logix5562 Processor - 4MB Memory Allen-Bradley
1756-L62/B Logix5562 Logix5562 Processor - 4MB Memory Allen-Bradley
1756-OB16E/A Digital Fused Output Module - Series A Allen-Bradley
1756-PA72/A 1756-PA72 Power Supply - Series A Allen-Bradley
1756-PA72/B 1756-PA72 Power Supply - Series B Allen-Bradley
1756-PA72/C 1756-PA72 Power Supply - Series A Allen-Bradley
1761-CBL-PM02 Program Storage Device Cable Allen-Bradley
1761-L32BBB MicroLogix 1000 Unit Allen-Bradley
1762-IQ16 16PT 24VDC Power Supply Module Allen-Bradley
1762-MM1 MicroLogix Memory Module Allen-Bradley
1762-MM1RTC MicroLogix Memory and Real-Time Clock Module Allen-Bradley
1762-OF4 Analog Output Module Allen-Bradley
1762-OW16 16PT VAC/VDC Relay Output Allen-Bradley
1762-RTC MicroLogix Real-Time Clock Module Allen-Bradley
1764-24BWA MicroLogix 1500 Base Unit Allen-Bradley
