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S5100U CPU 103

Created by: Harry56 at: 11/15/2013 8:38 PM (1 Replies)

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11/15/2013 8:38 PM	Rate (0)
Harry56 Posts: 1 Rating: (0)	This is an old PLC and has been working fine until today. The txd and rxd light on the unit are flashing constantly and some of my functions will not even move in the manual mode of the HMI. AI acts like a few of the functions won't operate because the PLC is not seeing a sensor made to let it know it is ok to continue. In short, I have not noticed the txd and rxd flashing constantly before today.
Harry56 Posts: 1 Rating: (0)
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11/16/2013 8:03 AM	Rate (0)
Marcjan Platinum Member Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, The leds mean that the PLC is communicating with a partner, what is connected to the PLC?. If there is an error there will be some more leds on at the CPU Do you have the software to go online? Check attached part of manual. Regards, Marcjan Attachment diagnostics and troubleshooting s5-100u.pdf (289 Downloads)
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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