
1747-L541
1747-L541
1747-L541
1747-L541
PLC与电气回路的接口,是通过输入输出部分(I/O)完成的。I/O模块集成了PLC的I/O电路,其输入暂存器反映输入信号状态,输出点反映输出锁存器状态。输入模块将电信号变换成数字信号进入PLC系统,输出模块相反。I/O分为开关量输入(DI),开关量输出(DO),模拟量输入(AI),模拟量输出(AO)等模块。
开关量是指只有开和关(或1和0)两种状态的信号,模拟量是指连续变化的量。常用的I/O分类如下:
开关量:按电压水平分,有220VAC、110VAC、24VDC,按隔离方式分,有继电器隔离和晶体管隔离。
模拟量:按信号类型分,有电流型(4-20mA,0-20mA)、电压型(0-10V,0-5V,-10-10V)等,按精度分,有12bit,14bit,16bit等。
★公司名称:厦门泰电气有限公司
★公司地址:厦门市海沧区滨湖一里7号2008室
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联系人:黄东梅
手机:18030265259
电话:0592-6809319
传真:0592-6890859(备注收件人)
扣扣:2917675397
邮箱:2917675397@qq.com
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