ic697mdl652 |
ic697mdl652 |
ic697mdl652 |
3.输入输出单元(i/o单元)
i/o单元实际上是plc与被控对象间传递输入输出信号的接口部件。i/o单元有良好的电隔离和滤波作用。接到plc输入接口的输入器件是各种开关、按钮、传感器等。plc的各输出控制器件往往是电磁阀、接触器、继电器,而继电器有交流和直流型,高电压型和低电压型,电压型和电流型。
4.电源
plc电源单元包括系统的电源及备用电池,电源单元的作用是把外部电源转换成内部工作电压。plc内有一个稳压电源用于对plc的cpu单元和i/o单元供电。
5.编程器
编程器是plc的Zui重要外围设备。利用编程器将用户程序送入plc的存储器,还可以用编程器检查程序,修改程序,监视plc的工作状态。除此以外,在个人计算机上添加适当的硬件接口和软件包,即可用个人计算机对plc编程。利用微机作为编程器,可以直接编制并显示梯形图。
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: 小廖(女士)
◆ 电话:0592-6539066
◆ 传真:0592-6890859
◆ qq:1490371370
诚信经营,质量为首,服务至上,厦门泰尼小廖竭诚为您服务!!!
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