硬件配置: Revision
电源 1756-PA72/C
CPU LOGIX5562 L62/A 15.56
SRM 1757-SRM 4.3
CNBR CNBR/D 7.12
ENBE ENBT/A 3.6
AI 1.5
AO 1.5
DI 3.5
DO 2.1
RTD 1.5
UPS 供电 双网冗余
故障现象:冗余切换正常,正常运行时不定期突然双CPU死机,并且程序丢失,须重新DOWNLOAD,报错:主Power up fault; 从 major recoverable fault。更换带CF 卡的CPU 故障依旧;更换电源,故障依旧。请高手多多指教!!!!!!