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NCU alarm 120202- Waiting for a connection to the NC/PLC

Created by: Khairie at: 8/17/2022 6:13 AM (6 Replies)

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8/17/2022 6:13 AM	Rate (0)
Khairie Posts: 45 Rating: (0)	Hi Expert, I got a service issue NCU alarm 120202- Waiting for a connection to the NC/PLC. NCU 7 Segment = 6 LED = OK Cable Profius = OK OP communication = OPI how to check more detail on this NCU problem? Attachment NCU PROBLEM.png (474 Downloads)
Khairie Posts: 45 Rating: (0)
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8/17/2022 8:09 AM	Rate (0)
Khairie Posts: 45 Rating: (0)	I solved the problem. MPI address original 2. follow this manual to change 13 - default address. thank you for a person make this manual. Attachment NCU-PCU Replaced communication doesn't take place.pdf (640 Downloads)
Khairie Posts: 45 Rating: (0)
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This contribution was helpful to 1 thankful Users Jen_Moderator

8/17/2022 12:25 PM	Rate (0)
PISCEAN 2010 Posts: 8092 Rating: (884)	Basic question is, how this alarm triggered? Did you replace any hardware? If yes, which?
PISCEAN 2010 Posts: 8092 Rating: (884)
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8/19/2022 2:38 AM	Rate (0)
nulizhang Platinum Expert Joined: 10/17/2007 Last visit: 1/14/2026 Posts: 4574 Rating: (416)	Thanks for share your exprences. please answer the question: "Basic question is, how this alarm triggered? Did you replace any hardware? If yes, which?" Khairie I solved the problem. MPI address original 2. follow this manual to change 13 - default address. thank you for a person make this manual.
	If you like my comments please use "Thank" bottom left or Rating Top right
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8/19/2022 9:38 AM	Rate (0)
Khairie Posts: 45 Rating: (0)	The alarm was triggered due to PCU not reading the MPI default address which is 13. The alarm will disappear if MPI addresses is correct and no issue with the hardware. No hardware replacement.
Khairie Posts: 45 Rating: (0)
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8/19/2022 10:11 AM	Rate (0)
PISCEAN 2010 Posts: 8092 Rating: (884)	Khairie The alarm was triggered due to PCU not reading the MPI default address which is 13. The alarm will disappear if MPI addresses is correct and no issue with the hardware. No hardware replacement. Why PCU address did not got detected? Is it due to lost of communication or data? All of sudden hardware address never get changed. Anyway above point shared just for information.
PISCEAN 2010 Posts: 8092 Rating: (884)
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8/19/2022 10:57 AM	Rate (0)
Khairie Posts: 45 Rating: (0)	The NCU card MPI address changed to 2 after RESET NC/PLC by the customer.
Khairie Posts: 45 Rating: (0)
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This contribution was helpful to 1 thankful Users PISCEAN 2010

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