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MP270B不能下载 | 找知识-找PLC

MP270B不能下载

最开始我发现此屏不能进入控制面板,进入控制面板需要密码,可是不知道密码,我就想更新一下OS就可以了,我就用以太网进行更新,可是更新提示接口、设置电缆等错误,我检查了一下我的电脑IP设置的是192.168.8.7,应该没问题啊,那可能是触摸屏没设置好,我就找了一张5512卡来下载,选择成MPI/DP下载,笔记本地址和触摸屏地址分别设成1和2(具体哪个是1哪个是2忘了,反正是按照说明书上设置的),可是还是不能下载,提示还是接口、电缆或者设置错误,不知道是什么问题,我的适配器和5512卡是原装的,电缆线是自己做的,我不知道是不是线有问题,请各位前辈帮忙出出主意,如果是线的问题,请问一下正确的线应该怎么做呢?

最佳答案

对屏进行下载必须把屏选择在transfer模式,但由于加了密码所以你无法进入控制面板将屏切换到transfer模式,所以你无法对其进行下载。在做OS更新也是需要屏的设置与PC对应才可以,如果屏设置是MPI/DP通讯使能,而不时IP使能,那么你使用以太网进行OS更新是不可以的。
     因此你只能把屏恢复到出厂设置,出厂设置是没有密码的,进入屏的控制面板,做相应的设置后方可进行下载工作。
     屏的默认通讯设置是串口通讯,可使用RS232/PPI电缆对其恢复为出厂设置,在OS更新的窗口中勾选恢复出厂设置,选择RS232/PPI电缆,RS232/PPI电缆拨码的通讯速率要与OS更新选择的通讯速率一致,187.5KB/S。然后点击更新,屏就会恢复成出厂设置,注意,现在的PC一般都没有232接口,如果没有RS232接口可使用USB转RS232电缆转换,需要安装USB转RS232驱动程序方可使用,如果有RS232接口直接连接就可以。希望对你有所帮助!

提问者对于答案的评价:
谢谢,解释的非常正确,问题已经解决,不过才来给您分,真是对不住了!

原创文章,作者:more0621,如若转载,请注明出处:https://www.zhaoplc.com/plc270865.html

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