6ES7 231-4HD30-0XB0 控制系统
西门子PLC模块6
可编程控制装置是由现代化生产的需求而产生的，可编程序控制装置的分
西门子PLCS7-200系列西门子PLCS7-200系列
类也必然要达到现代化生产的需求。
一般来讲可以从三个角度对可编程序控制装置进行分类。其一是从可编程序控制装置的控制规模大小去分类，其二是从可编程序控制装置的性能高低去分类，其三是从可编程序控制装置的结构特点去分类。
控制规模
一般分为大型机、中型机和小型机。
西门子PLCS7-300系列西门子PLCS7-300系列
小型机: 小型机的控制点一般在256点之内,适合于单机控制或小型系统的控制。
西门子小型机有S7-200：处理速度0.8~1.2ms ；存贮器2k ；数字量248点；模拟量35路 。
中型机:中型机的控制点一般不大于2048点,适用于对设备进行直接控制，也能对多个下一级的可编程序控制装置进行监控，它适合中型或大型操作系统的控制。
西门子中型机有S7-300：处理速度0.8~1.2ms ；存贮器2k ；数字量1024点；模拟量128路 ；网络PROFIBUS；工业以太网；MPI。
大型机：大型机的控制点一般大于2048点,不单能完成比较复杂的算术运
西门子PLCS7-400系列西门子PLCS7-400系列
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HP ProLiant DL380 G4 Hot-Plug Fan 279036-001
HP ProLiant DL385 G2 Fan Backplane Board 408791-001
HP ProLiant DL385 G2 Power Supply Backplane 407750-001
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HP ProLiant DL380 G4 6 Bay SCSI Backplane 359253-001
HP ProLiant DL385 G2 10-Pin Power/Date Cable 394038-001
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HP ProLiant DL385 / DL380 G4 SCSI Backplane 411023-001
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Dell PowerEdge 1850 SCSI Backplane Board U9580
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Dell 1850 SCSI Backplane Cable Riser Board X2119
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