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WINCC ALARMS TIME SYNCHONIZATION WITH PLC TIME

Created by: nishu at: 6/21/2008 7:44 PM (3 Replies)

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6/21/2008 7:44 PM	Rate (0)
nishu Posts: 66 Rating: (1)	WILL SOMEBODY TELL ME THE PROCEDURE TO SYNCHRONIZE WINCC ALARM TIME WITH PLC TIME.
nishu Posts: 66 Rating: (1)
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6/22/2008 12:05 PM	Rate (0)
io ba Experienced Member Joined: 7/20/2007 Last visit: 12/7/2024 Posts: 43 Rating: (4)	hi ! read this: https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&objid=7802886&caller=view /tf/WW/en/Posts/19187
	plc.nanospic.com
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6/22/2008 11:15 PM	Rate (0)
nishu Posts: 66 Rating: (1)	I DESIGN SCADA FOR A PROCESS WHERE SEVERAL MOTORS START SEQUENTIALLY WITH RUN FEEDBACK OF PREVIOUS MOTOR. WHENEVER ANY MOTOR STOPS THEIR FEEDBACK LOST AND ALL MOTOR BEHIND THIS MOTOR ARE ALSO STOP. WHEN WE LOG THIS EVENT IN OUR SCADA WE SEE FEEDBACK OF ALL DRIVES WHERE LOST AT SAME TIME, PRACTICALLY THIS NOT HAPPEN.THERE MUST BE SOME GAP OF MILLI SECONDS IN EACH MOTOR. REQUEST YOU TO PROVIDE SOLUTION FOR THIS PROBLEM.
nishu Posts: 66 Rating: (1)
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6/23/2008 9:19 AM	Rate (0)
Manchat Posts: 33 Rating: (6)	If you are using an S7 PLC you could use the PLC to generate the alarms using SFC18 Alarm_S functionality. This would then timestamp the alarm at the PLC and send to the SCADA to give a higher resolution of timestamp. You could also look at using the PDIAG functions which make the configuring of PLC generated alarms much easier.
Manchat Posts: 33 Rating: (6)
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