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Switch on right Time

Created by: KTM990smt at: 6/3/2012 9:25 AM (2 Replies)

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6/3/2012 9:25 AM	Rate (0)
KTM990smt Posts: 5 Rating: (0)	Hi All, I'm using a 300 CPU and a comfort panel. The task is for example to start a motor at a specified time 18:00 And then stop the motor at 18:15 The time values can be changed on the touch panel. I'm looking for easiest way to program this. Currently i'm using the RD_SYS_T block to read the system time and then convert it to integers witch then compares to the panel values. Is there any smarter way? Maybe to use Time_Of_Day variables? Thanks
KTM990smt Posts: 5 Rating: (0)
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6/3/2012 10:28 AM	Rate (0)
IBN-Service Posts: 8946 Rating: (995)	There are a some examples here in the forum (->Search) and also in SIMATIC FAQ. One example for a weekly time switch: https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&objid=54997730&caller=view
IBN-Service Posts: 8946 Rating: (995)
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This contribution was helpful to 1 thankful Users fritz

6/4/2012 11:25 AM	Rate (0)
miami Platinum Member Joined: 8/31/2005 Last visit: 4/24/2023 Posts: 2194 Rating: (320)	Have a look at this S7 examples: Time switches based on the S7-300/400 CPUs, optional radio clock connection http://support.automation.siemens.com/WW/view/de/21669756 Collection of Tools for Date and Time Functions http://support.automation.siemens.com/WW/view/de/31696259

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