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Problem with central rack?

7/7/2009 11:20 AM	Rate (0)
KOURTZAAR_HRA Posts: 48 Rating: (1)	Hello everyone I had an problem 2 days ago,the cpu s7-400 goes in stop, the EXT led is constant on, and in the diagnostic buffer the fault begins in i/o error (every FC i use them) which have in profibus network (cpu master with two slaves), and finally the last error is X1 (MPI/DP...).I change cpu,change the DP/DP COUPLER (1 SLAVE) but nothing after 30 minute i had the same problem.When i had this if i try to change the mode of cpu run-stop and run again nothing happend.Only if switch off the power supply and power again the cpu unstiking. Finally after 2-3 hours i change the central rack which in on the cpu and from this time every goes ok.Do you have somebody same logical explain for this? best regards
KOURTZAAR_HRA Posts: 48 Rating: (1)
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7/8/2009 10:05 AM	Rate (0)
CS Moderator Moderator Joined: 9/1/2005 Last visit: 1/9/2026 Posts: 4114 Rating: (195)	Thread closed, because question is already discussed in the thread with the subject Problem in central rack in s7-400?. You can find it withtin the conference SIMATIC S7-400 / S7-400H / S7-400F /FH Best regards CS Moderator
	My Forum is the place to personalize your profile, track your topics, and maintain content that interests you. Best regards CS Moderator
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