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115U not in stop or in run ??

Created by: aikona at: 9/1/2008 7:57 AM (3 Replies)

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9/1/2008 7:57 AM	Rate (0)
aikona Posts: 487 Rating: (36)	Hi Got funny problem ... during short powerdip all outputs from PLC disappeared , although the PLC was in run ( actualy the green light was flashing ).No info in Istack or Bstack ( tells me the PLC is running) No status in OB1 ( thus not cycled) Could it be that the plc got stuck into the start-up routine OB21/OB22 ? Softstart from PG not possible only from switch on CPU Any idea's and could this be the first sign of hardware failure Eric
aikona Posts: 487 Rating: (36)
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9/1/2008 11:50 AM	Rate (0)
Pandiani Bronze Member Joined: 10/31/2005 Last visit: 3/7/2023 Posts: 293 Rating: (30)	Did you try switching to STOp and then back to RUN? Is it working after that?

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9/1/2008 11:59 AM	Rate (0)
aikona Posts: 487 Rating: (36)	Hi Only the switch on the CPU works.Via PG no response or tells you that the PC is running. Eric
aikona Posts: 487 Rating: (36)
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9/1/2008 4:09 PM	Rate (0)
poraic Posts: 1 Rating: (0)	hi, your gone into test mode inadvertantly to get out use blockstatus ==> turn off program test the CPU goes into stop and then you can go back into runagain by stop run its an easy thing to do to go into it without even knowing
poraic Posts: 1 Rating: (0)
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