BUS2F闪红灯
刘玉蓉
发布于2014-10-24 17:38
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我厂一台CPU412,BUS2F不定时闪红灯，跟着就整排报警灯都会亮。请问亮BUS2F是什么意思？
佳答案
LEDs BUSF1 and BUSF2
LED Meaning
BUS1F BUS2F
H x An error was found at the MPI/DP interface.
x H An error was found at the PROFIBUS DP interface.
B x DP master: one or more slaves at PROFIBUS DP interface 1 are not responding. DP slave: not addressed by the DP master
x B DP master: one or more slaves at PROFIBUS DP interface 2 are not responding. DP slave: not addressed by the DP master
BUS2F:亮表明在PROFIBUS DP接口上检测到错误。
检查处理方法:1、找到你的硬件组态，在线观察是哪个从站出了故障；
2、看一下CPU的诊断缓冲区，看有没有有用的提示信息；
3、检查出故障的从站的接头是否有松动、脱落、毁坏等。
不行就换个CPU看看了,判断是不是CPU的问题,我们曾出现CPU通信口损坏的故障.
