这个是314C-2DP的PLC诊断出来的结果,请大家帮忙看看什么意思
Rack: 0
Slot: 2
Event 1 of 10: Event ID 16# 2528
Alignment error when reading
Local data of the caller, word access, Incorrect address: 2
FC number: 4
Module address: 268
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
02:21:21.801 PM 08/09/2012
Event 2 of 10: Event ID 16# 2528
Alignment error when reading
Local data of the caller, word access, Incorrect address: 2
FC number: 4
Module address: 268
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
02:21:21.801 PM 08/09/2012
最佳答案
从CPU诊断信息来看,应该是FC4功能中的编辑错误,即提示行的“FC number: 4”,很有可能是你在变量表中修改了某变量,但在FC4功能程序中未进行一致性的检查与修改。
提问者对于答案的评价:
谢谢大家,问题解决了
原创文章,作者:more0621,如若转载,请注明出处:https://www.zhaoplc.com/plc245735.html