发布于 2013-01-30 16:28:43
10楼
s5-100U说明书对PEU故障描述如下,希望对你有帮助
可能原因:
? Expansion module not connected
? I/O bus malfunction
? Maximum length of shift register exceeded
? Module unknown
? Module in wrong slot
解决措施:
? Check the power supply in the expansion unit.
? Check the connections.
? Check the module slots.
It is time for s5 upgrade to s7