4351B

品牌型号：4351B

安装方式：现场安装
LD指令处理器：硬PLC
可售卖地：全国
质保:一年
联系方式:+86-18150087953
邮箱:340565517@qq.com

CPU 上有指示灯显示哪个是主， 哪个是备。 42. 请问 300 如何通过 CPU 模块上的开关，来清程序 问：300 如何通过 CPU 模块上的开关，来清程序。我看了手册有，但看不明白。

答：You can use the following procedure to delete the block on an MMC in the CPU: 1.The MMC to be deleted is slotted in the CPU. 2.In the SIMATIC Manager, switch to online mode via "View > Online" or by pressing the appropriate button. 3.In the Online window, you select the block folder. 4.Select all the blocks in the folder which you want to delete. 5.Click the "Delete" key on your PC keyboard （you can acknowledge the message that system functions cannot be deleted）.