IC693CBK001
IC693CBK001
IC693CBK001
系统采用RS-485进行网络通讯,RS-485是一般工业控制所经常采用的网络通讯方式。它具有能够实现多机通讯(RS-485驱动器最多可接 32个从站),通讯距离长,抗干扰能力强等特点。奥越信 OYES系列主机具有RS-485通讯口,而变频器也都有RS-485通讯口,并且提供了专用驱动指令。我们以PLC为主机,两个变频器为从机组成RS-485控制网络。每个从站被赋与唯一的本机地址。通讯采用主机轮询,从机应答的通讯方式,主机发出的信息可以被各从机接收,从机只能发出应答信息,从机间不能通信。从机接收到数据后,判断地址是否和本机地址相同,若相同则对数据进行处理后应答,若不同则不予理睬。通过通讯主要是控制给棉电机和引纱电机的起停和工作频率的修改,工作频率初值是PLC根据设定的细纱号数和棉条号数计算得出。在机器运转中,通过速度传感器检测,PLC进行计算比较,微调工作频率,使机器运转精度提高。其中需要注意的是在使用通讯进行控制变频器的起停一定注意程序的逻辑顺序,不然将会引起动作的混乱而不能达到预期的效果。大屏幕触摸屏的优点是信息量大,操作简便直观。在本系统中采用PWS1711工业级人机界面,根据需要设计了各种画面,用来输入工艺参数,显示实测参数。
现货,现货,降降降,火火火,火火火……
现货,现货,降降降,火火火,火火火……
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◆ 企业名称:厦门泰尼电气有限公司
◆ 联系人: 小黄(女士)
◆ 电话:0592-6809319
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◆ 传真:0592-6890859
◆ QQ:2917675397
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