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LED light of physical module is not green and the output is not active

Created by: Ganeshan at: 11/14/2014 7:45 AM (4 Replies)

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11/14/2014 7:45 AM	Rate (0)
Ganeshan Posts: 23 Rating: (0)	Hi friends, I'm working with 315-2DP CPU, In my logic, I generated 2 Digital Outputs as (Q4.2 and Q4.4) simultaneously, i can see those outputs active in online (software), but , physically, only Q4.2 is Green, Q4.4 is off state. and when i activate Q4.6, Q4.7 and Q5.0, cyclically (1sec delay), but, thse outputs also not generated physically, but in software i can see those outputs were active. please help me, what could be the issue? Output Module MLFB: 6ES7-322-1BH01-0AA0
Ganeshan Posts: 23 Rating: (0)
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11/14/2014 8:06 AM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 12/15/2022 Posts: 5697 Rating: (708)	Hello, Could it be that you write to the outputs in more locations, check it with cross reference. Check for overlapping addressing too. To check the physical output, disable all blocks that write to the outputs and enable outputs in a watch table (VAT). Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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11/14/2014 3:15 PM	Rate (0)
Ganeshan Posts: 23 Rating: (0)	Marcjan Yes, you are right, there are two conditions to activate outputs, one is staisfied, and the other condition is not, so the output were not activated, thanks Marcjan
Ganeshan Posts: 23 Rating: (0)
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This contribution was helpful to 1 thankful Users Marcjan

11/14/2014 4:39 PM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 12/15/2022 Posts: 5697 Rating: (708)	Hello,Common mistake, so in future set/reset conditions with a Flag or DB-bit.Then in one place set the outputs with the Flag{s} That way you handle the outputs at 1 place and you can easy see what condition is or is not met.Regards,Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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6/7/2016 9:07 AM	Rate (0)
The Helping Hand Moderator Joined: 8/21/2014 Last visit: 9/14/2023 Posts: 734 Rating: (12)	New question published by aun_khan is split to a separate thread with the subject LED light of physical module is not green and the output is not active. Best regards The Helping Hand
	My Forum is the place to personalize your profile, track your topics, and maintain content that interests you. Best regards The HelpingHand
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