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Daylight Saving Time on CPU 315

Created by: tomearp at: 3/30/2009 12:00 PM (4 Replies)

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3/30/2009 12:00 PM	Rate (0)
tomearp Posts: 51 Rating: (3)	hello... is there a simple way to make a CPU 315 aware of GMT/BST changeover?i know it's available in the hardware configuration of say an S7-400 CPU but could not find such an option on the 315. i have the cpu 315 set up to get time updates from NTP servers, but presumably they will only supply the time to the module in GMT/UCT format. thanks
tomearp Posts: 51 Rating: (3)
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3/30/2009 1:07 PM	Rate (2)
Sydney Gold Member Joined: 1/4/2008 Last visit: 9/26/2024 Posts: 703 Rating: (96)	Hello, if you use this type of time synchronization, the system time runs as UTC. When you need to have local time for using, you can obtain it by BT_LT (FC61) from the Standard Library. Use the online help for this FC to parametrize it. Be aware of need to download another FCs from the Standard Library and define the "rule DB". Regards Sydney

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This contribution was helpful to 2 thankful Users tomearp Navnag

4/3/2009 12:49 PM	Rate (0)
tomearp Posts: 51 Rating: (3)	cheers Sydney, works a treat!
tomearp Posts: 51 Rating: (3)
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4/3/2009 2:57 PM	Rate (0)
Sydney Gold Member Joined: 1/4/2008 Last visit: 9/26/2024 Posts: 703 Rating: (96)	You're welcome ...and thanks for stars

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5/6/2016 11:52 AM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4766 Rating: (122)	New question published by scottbuda is split to a separate thread with the subject Implement the BT_LT function. Best regards Min_Moderator

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