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SBR工艺的基本操作流程由进水，反应，沉淀，出水和闲置等五个基本过程组成，从污水流入到闲置结束构成一个周期，在每个周期里上述过程都是在一个设有曝气或搅拌装置的反应器内依次进行的。
SBR工艺系统组成简单，不设二沉池，曝气池兼具二沉池的功能，无污泥回流设备。SBR具有效率高，脱氢除磷效果好，防止污泥膨胀性能强，耐冲击负荷和处理能力强等优点。
1746-OB16 数字量输出模块
四，AC500在SBR控制中的具体实现
SBR污水处理厂的自动控制系统由三级分布式控制系统组成,第一级—监控管理，由中央控制室的操作站实现。选用工控计算机，以TCP/ IP工业以太网与PLC系统通讯,实行集中控制。通过工控软件实时监视全厂工艺参数变化、设备运行、故障发生等情况，同时负责日常报表打印、事故打印和数据记录等。
ABPLC1756-L55PLC
ABPLC1756-L55M12
ABPLC1756-L55M13PLC
ABPLC1756-L55M14PLC
ABPLC1756-L55M16
ABPLC1756-L55M22PLC
ABPLC1756-L55M23
ABPLC1756-L55M24PLC
ABPLC1756-L61PLC
ABPLC1756-L61SPLC
ABPLC1756-L62PLC
ABPLC1756-L63PLC
ABPLC1756-L63SPLC
ABPLC1756-L63XTPLC
ABPLC1756-L64PLC
ABPLC1756-L65
ABPLC1756-L73PLC
ABPLC1756-L74
ABPLC1756-L75PLC
ABPLC1756-LSPPLC
ABPLC1756-M1PLC
ABPLC1756-M12PLC
ABPLC1756-M13PLC
ABPLC1756-M14PLC
ABPLC1756-M16PLC
ABPLC1756-M2PLC
ABPLC1756-M22PLC
ABPLC1785-L11BPLC
ABPLC1785-L20BPLC
ABPLC1785-L20EPLC
ABPLC1785-L26BPLC
ABPLC1785-L30BPLC
ABPLC1785-L40BPLC
ABPLC1785-L40CPLC
ABPLC1785-L40EPLC
ABPLC1785-L40LPLC
ABPLC1785-L46BPLC
ABPLC1785-L46C15
ABPLC1785-L60BPLC
ABPLC1785-L80B
ABPLC1785-L80CPLC
ABPLC1785-L80C15PLC
ABPLC1785-L80EPLC
ABPLC1785-L86BPLC
ABPLC1747-L514PLC
ABPLC1747-L533PLC
ABPLC1747-L542
ABPLC1747-L543
ABPLC1747-L551PLC
ABPLC1747-L552PLC
ABPLC1747-L553PLC
ABPLC1747-L553PPLC
PLCPLC
ABPLC1756-L
ABPLC1756-L1M1
ABPLC1756-L1M2
ABPLC1756-L1M3
ABPLC1756-L55
ABPLC1756-L55M12
ABPLC1756-L55M13PLC
ABPLC1756-L55M15PLC
ABPLC1756-DNBPLC
ABPLC1756-IB16
ABPLC1756-IB16DPLC
1746-OB16 数字量输出模块
1746-OB16 数字量输出模块
ABPLC1756-IB16IPLC
ABPLC1756-IB32PLC