Diagnostic buffer of module CPU 315-2 DPOrder No./ Description Component Version 6ES7 315-2AG10-0AB0 Hardware 7 - - - Firmware V 2.6.6 Boot Loader Firmware expansion A 0.21.0 Rack: 0Slot: 2Event 1 of 10: Event ID 16# 38C4Distributed I/Os: station returnAddress of the affected DP slave: station number: 4DP master system ID: 1Log. base address of the DP slave: Input address: 2044Log. base address of the DP master: 2047Requested OB: Rack failure OB (OB86)Priority class: 26External error, Outgoing event02:13:13.891 AM 07/23/2016Event 2 of 10: Event ID 16# 2942I/O access error, readingP area, word access, Access address: 518Requested OB: I/O access error OB (OB122)Priority class: 1External error, Incoming event02:13:13.639 AM 07/23/2016Event 3 of 10: Event ID 16# 2942I/O access error, readingP area, word access, Access address: 518Requested OB: I/O access error OB (OB122)Priority class: 1External error, Incoming event02:13:13.638 AM 07/23/2016Event 4 of 10: Event ID 16# 2942I/O access error, readingP area, word access, Access address: 518Requested OB: I/O access error OB (OB122)Priority class: 1External error, Incoming event02:13:13.637 AM 07/23/2016Event 5 of 10: Event ID 16# 2942I/O access error, readingP area, word access, Access address: 516Requested OB: I/O access error OB (OB122)Priority class: 1External error, Incoming event02:13:13.637 AM 07/23/2016Event 6 of 10: Event ID 16# 2942I/O access error, readingP area, word access, Access address: 516Requested OB: I/O access error OB (OB122)Priority class: 1External error, Incoming event02:13:13.636 AM 07/23/2016Event 7 of 10: Event ID 16# 2942I/O access error, readingP area, word access, Access address: 516Requested OB: I/O access error OB (OB122)Priority class: 1External error, Incoming event02:13:13.635 AM 07/23/2016Event 8 of 10: Event ID 16# 2942I/O access error, readingP area, word access, Access address: 514Requested OB: I/O access error OB (OB122)Priority class: 1External error, Incoming event02:13:13.634 AM 07/23/2016Event 9 of 10: Event ID 16# 2942I/O access error, readingP area, word access, Access address: 514Requested OB: I/O access error OB (OB122)Priority class: 1External error, Incoming event02:13:13.634 AM 07/23/2016Event 10 of 10: Event ID 16# 2942I/O access error, readingP area, word access, Access address: 514Requested OB: I/O access error OB (OB122)Priority class: 1External error, Incoming event02:13:13.633 AM 07/23/2016正在运行的系统出现上述异常诊断信息，导致4#站数据中断两分钟，从而引起设备跳停，请帮助分析具体原因。
最佳答案
cpu至远程站通讯出现中断，检查通讯电缆、接头、模块、干扰、接地等内容。
提问者对于答案的评价：
如何解决干扰问题？
最佳答案作者回复:
最少要做到通讯线远离动力线敷设，做好屏蔽接地。技术论坛里有些dp故障处理的帖子可以参考一下
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