描述
就地控制单元不仅具有自动控制功能, 由于触摸屏的使用,而具有直观画面监视功能,其结构如图二所示。
如图所示,单格滤池由五个阀门组成: DF进水电磁阀、F1出水阀、F2水冲阀、F3气冲阀、F4排水阀。由一台FX2N PLC控制单格滤池的自动过滤和自动反冲洗。滤池就地控制单元即CClink 网络的一个从站,执行三格滤池的控制过程内部数据交换。三格滤池通过RS485网络互连,这种RS485网络速率为192KB、距离为50米、数据传送量不大,但也是N`:N网络,可实现主控PC与从站PC之间数据循环传送。通过此网络三格滤格的三台FX2N PLC与触摸屏互连。
滤池就地控制单元功能包括:
① 控制单格滤池的自动过滤和自动反冲洗。自动过滤监测滤池水位,据滤池水位的情况及时调整出水阀的开度,使滤池保持在过滤水位。当运行周期到或强冲或水头损失以达到时,滤池进行自动反冲洗。控制器监测滤池水位到达低水位,开启排水阀,开启气冲阀、气冲5分钟,关闭气冲阀;开启水冲阀、水冲5分钟、关闭水冲阀;关闭排水阀,冲洗结束。
产品广泛应用于:电力、石油、矿井提升、港口、供热、燃气、供水、污水处理、冶金、造纸、纺织、化工、水利等现代化工业领域!
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数
据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
结构的zui现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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