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[?]: Cycle time CPU S7-400 problem
Posted: Tue Nov 27, 2012 6:21 pm
by kambiz
Dear All
please help me how can decrase CPU S7-400 Cycle time ?
after insert cp443-1 in rack and 6 drive in profibus dp cpu go to stop
Re: [?]: Cycle time CPU S7-400 problem
Posted: Wed Nov 28, 2012 8:06 am
by Umencho
It should not be exceeded. Check the logic in software for endless cycles. What is the profibus baud rate? What is the value for max. scan time (HWKonfig->CPU->Properties)? Are you sure that CPU goes in STOP for those reason?
BR
Re: [?]: Cycle time CPU S7-400 problem
Posted: Wed Nov 28, 2012 1:54 pm
by kambiz
Rate DP 1.5 MB
MAX SCAN 6000ms
after program parameter drive to plc cpu go to stop for example read piw2100 in chart cfc after that cpu go to stop and cycle time very long !!!