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11/9/2010 5:47 AM | |
Posts: 5 Rating: (0) |
S7-400H/F system(under commissioning)used with Flash Eprom. 2 nos. CPU 6ES7 417-4HT14-0AB0(V4.5) is used in 2 seperate racksconnected to IM153(153-2BA02-0XB0) through fiber-optic network in switched mode. Failsafe I/Os are 6ES7 326-1BK02-0AB0 and 6ES7 326-2BF01-0AB0. After download of Program in flash memory of both CPUs using the option "Download the USer program to Memory card" in Simatic Manager, the system works without errors in the H/F mode. After one CPU is switched Off, the standby(second) CPU takes over properly and system functions smoothly. After the first CPU is switchedON again and at the end of startup of the first CPU, all failsafe outputs are disabled with following errors in sequence.Diagnostic Interrupt leds glow in all failsafe modules. - I/O access error when transferring the process image to the output modules leaving state - I/O access error when updating the process image input table leaving state - Safety Program: Error in the F_ CYC_CO Detected - Safety Program: Error in the F_PLK Detected - Safety Program: Error in the F_PLK_O Detected - Safety Program: Full Shutdown of the F-Program active - Safety Program: Shutdown of a Failsafe Runtime Group active Failsafe module stop functioning after this. Cold restart doesn't help. For system to be functional again, Both the CPUs have be switched OFF and Switched ON one after other. Even sometime download of the entire program is required to be done again on the Flash Eproms. Pls. Advise. Attachment400HF_E-st.pdf (297 Downloads) |
2/4/2012 11:30 AM | |
Joined: 9/6/2008 Last visit: 5/7/2022 Posts: 1121 Rating: (86) |
HI May this Link in Forum may help you in your first error link1 Link2 May this Manual help you, Link3 If i know about Fail safe modules, you have to use RAM card instead of Feprom cards. RAM card support the Fail safe Module program in a better way than FEPROM cards. May be that could be a reason. Have fun... |
Jazz |
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