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BF light on cpu 414 2 dp

Created by: viki_bum at: 6/25/2011 8:12 PM (3 Replies)

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6/25/2011 8:12 PM	Rate (0)
viki_bum Posts: 23 Rating: (0)	Dear All Recently in one of my project I am using CPU 414 2 dp Plc. I have many slaves onprofibus DPnetwork. All the slaves are coming online but on CPU BF led is flashing with EXT fault led. I am unable o diagnos this . Can any body help me to to rectify this problem???????? Regards Vikki
viki_bum Posts: 23 Rating: (0)
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6/26/2011 3:46 PM	Rate (0)
gre_m Posts: 947 Rating: (45)	Check cable and terminators Profibus cable. Check consistent input/output area in hw-config.
gre_m Posts: 947 Rating: (45)
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6/26/2011 4:29 PM	Rate (0)
Ayman Elotaify Diamond Member Joined: 5/28/2008 Last visit: 12/29/2025 Posts: 4522 Rating: (843)	Hello, It was an old problem.. Please update the firmware of the CPU. If the problem still exist, please check the diagnostic buffer Why after power off/on or after return of a DP standard slave does the EXTF LED on the CPU 300/400 remain on and doesn't go out? Hope this helps.
	Ayman Elotaify
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6/26/2011 7:58 PM	Rate (0)
viki_bum Posts: 23 Rating: (0)	Thanks for the support vikki
viki_bum Posts: 23 Rating: (0)
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