产品详情
四、I/O模块 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。 除了上述通用IO外,还有特殊IO模块,如热电阻、热电偶、脉冲等模块。 按I/O点数确定模块规格及数量,I/O模块可多可少,但其zui大数受CPU所能管理的基本配置的能力,即受zui大的底板或机架槽数限制。
五、电源模块 PLC电源用于为PLC各模块的集成电路提供工作电源。同时,有的还为输入电路提供24V的工作电源。电源输入类型有:交流电源(220VAC或110VAC),直流电源(常用的为24VAC)。
TRICONEX 3000110-360
[仲鑫达]自己的内部库存和大量的供应商为分销商为您带来*的解决方案满足您的需求!包括以下产品。
◎..美国..英维思 ESD系统 FOXBORO,Invensys Triconex
◎.. 美国.. .. AB ..1756系列,1785系列,1746系列,1747系列,1771系列
◎..瑞士.. ..ABB.. 机器人系列,ABB Advant OCS,ABB Procontic PLC CPU
◎..法国....施耐德.. 140*康昆腾系列处理器,内存卡,电源模块等。
◎..德国...西门子..Siemens MOORE,S5,S7等
◎..美国通用电气..GE..90/30,90/70系列
公司以北美、欧洲、亚洲多家供应商建立了良好的合作关系。
以上产品都用于
壹.电力行业
贰.钢铁行业
叁.造纸行业......
肆.水泥行业
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