品牌:GE/通用电气
起订:1件
供应:100件
发货:3天内
信息标签:IC694MDL660,供应,电子、电工,工控系统及装备
IC694MDL660PLC有STOP和RUN两种工作状态,如果PLC处于STOP状态,则不执行用户程序,将通过与编程器等设备交换信息,完成用户程序的编辑、修改及调试任务;如果PLC处于RUN状态,则将进入扫描过程,执行用户程序。
IC694MDL660———共赢==财富—————停产的备品备件联系我们
我们的目标不是赚更多的钱,是让您找到品质好,称心如意的备品备件,让您无后顾之忧赚取财富的同时得到我们应有的回报,互惠互利!真诚合作,共赢发展!诚信合作,共同富裕!
用周到的服务换取您的满意,这样的企业才会有美好光明的未来!
相信我们的质量,相信您自己的眼光!我司坚持互利共赢的开放战略!
IC694MDL660PLC上电后,首先对系统进行初始化,包括硬件初始化,I/O模块配置检查、停电保持范围设定及清除内部继电器、复位定时器等。
2)CPU自诊断
在每个扫描周期须进行自诊断,通过自诊断对电源、PLC内部电路、用户程序的语法等进行检查,一旦发现异常,CPU使异常继电器接通,PLC面板上的异常指示灯LED亮,内部特殊寄存器中存入出错代码并给出故障显示标志。如果不是致命错误则进入PLC的停止(STOP)状态;如果是现致命错误时,则CPU被强制停止,等待错误排除后才转入STOP状态。
3)与外部设备通信
与外部设备通信阶段,PLC与其他智能装置、编程器、终端设备、彩色图形显示器、其他PLC等进行信息交换,然后进行PLC工作状态的判断。
4)扫描过程
以扫描方式把外部输入信号的状态存入输入映像区,再执行用户程序,并将执行结果输出存入输出映像区,直到传送到外部设备。
PLC上电后周而复始地执行上述工作过程,直至断电停机。
IC694MDL6604. 用户程序循环扫描
PLC对用户程序进行循环扫描分为输入采样、程序执行和输出刷新三个阶段,见图4-10。
随着工控行业网络建设的不断深入,“与客户共创成功”的经营理念更为重要,
这项工作做得成功与否,将直接影响到客户对我们的信任和满意,
对于现在这个价格战嚣张的年代,我们也一直坚持在走产品品质路线,
很多客户跟我们合作了,认可我们的质量,我们帮助客户赢得了订单,
同时客户也给我们下单了,我想这种双赢的局面才是真正的生意。真正的合作!
IC694MDL660我们认真的去了解客户需求,做的就是一个诚信、专业的公司,提升客户满意度,长期合作。ALLEN BRADLEY 845T-DN32AEH USPP 845TDN32AEH
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