10/5/2014 4:11 PM | |
Joined: 3/17/2013 Last visit: 8/25/2024 Posts: 481 Rating: (43) |
Hi Experts, We are having S7-400 configured in PCS7 domain with S7-300 IOs One of the machine hot oil heaters went off and indicated a FB_Fault. on3-10-2014.It is driven by S7 300 F DO card. But reasons couldn't be ascertained. Since last one month channel passivation occured three times (but Air con was not OK at that incident) This time Aircon is fine, but still lost FB. After restarting it is again working fine since 3 days. The CPU diagnostic buffer is attached herewith. Station 22 is related to this heater circuit. Can somebody detail me what could be the reason. Fail safe DO never passivated as it will be reset throug special code form operating HMI. Regards, Vijahy AttachmentDiagnose_31014txt_txt.pdf (285 Downloads) |
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