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314ifm... digital outputs not working..

Created by: naviid at: 8/24/2009 1:07 AM (3 Replies)

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8/24/2009 1:07 AM	Rate (0)
naviid Posts: 10 Rating: (0)	hello, i m facing a serious problem with my s7314ifm cpu..... i make a ladder logic program ... and it successfully downloads into the cpu but when i run it on the cpu the input goes high and the input LED on the cpu gets on ... but the cpu is not providng the output and the output LED remains off... although the simatic is monitoring the output address as high but the cpu is not giving the output .. i have 4 plc's which are making the same problem .. please help me out of it ...its quite serious for me... thanx in anticipation.
naviid Posts: 10 Rating: (0)
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8/24/2009 9:46 AM	Rate (0)
Gebhardt Karl Platinum Member Joined: 7/16/2006 Last visit: 1/2/2024 Posts: 1502 Rating: (176)	Hi Please Check the Power-Connectors. I think, you have forgot the 0V or +24VDC for Inputs/Outputs. Karl
	Karl
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8/24/2009 11:48 AM	Rate (0)
naviid Posts: 10 Rating: (0)	no sir , i think there is no problem with the connections.... because.... a day before it was working perfectly .... and i have the same problem with 4 plc's ... and all the 4 are connected properly on a traner board ..... may be some other thing is troubling!!!
naviid Posts: 10 Rating: (0)
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8/25/2009 6:11 AM	Rate (0)
Arunakat1 Posts: 217 Rating: (52)	Hello, Check your 0V and 24V as mention by karl. But if they work before and now it is not working I’m afraid may be your outputs have damaged. Also download a simple program and check your outputs weather they are working. But I think this is probably a matter of wrong wiring. Best regards,
Arunakat1 Posts: 217 Rating: (52)
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