0608750084力士樂(lè)模塊LT303

0608750084力士樂(lè)模塊LT303

0608750084

·                                 2 冗余系統(tǒng)構(gòu)建
ControlLogix系統(tǒng)采用了基于“生產(chǎn)者/消費(fèi)者"的通訊模式，為用戶提供了高性能、高可靠性、配置靈活的分布式控制解決方案。ControlLogix系統(tǒng)實(shí)現(xiàn)了離散、過(guò)程、運(yùn)動(dòng)三種不同控制類型的集成，能夠支持以太網(wǎng)、ControlNet控制網(wǎng)和DeviceNet設(shè)備網(wǎng)，并可實(shí)現(xiàn)信息在三層網(wǎng)絡(luò)之間的無(wú)縫傳遞。因而，ControlLogix被廣泛地應(yīng)用于各種控制系統(tǒng)。[1]
構(gòu)建ControlLogix冗余系統(tǒng)的核心部件是處理器和1757-SRM冗余模塊。目前，有1756-L55系列處理器模塊支持冗余功能，其內(nèi)存容量從750KB到7.5MB不等。1757-SRM冗余模塊是實(shí)現(xiàn)冗余功能的關(guān)鍵。如圖1所示，在冗余系統(tǒng)中，處理器模塊和1757-SRM冗余模塊處于同一機(jī)架內(nèi)。為了避免受到外界電磁干擾，提高數(shù)據(jù)傳輸速度，兩個(gè)機(jī)架的1757-SRM模塊通過(guò)光纖交換同步數(shù)據(jù)。所有的I/O模塊通過(guò)ControlNet控制網(wǎng)與主、從控制器機(jī)架內(nèi)的1756-CNB(R)控制網(wǎng)通訊模塊相連接。
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3N3587   NOZZLE ASSY

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3N3591   SA NOZZLE ASSY

3N3593   OUTER COVER

3N3594   ARM

3N3596   HOLDER ASSY