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Simulate input temperature sensor

Created by: frzz at: 5/3/2012 6:23 AM (15 Replies)

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5/3/2012 6:23 AM	Rate (0)
frzz Posts: 36 Rating: (1)	hii all, how to make graph/formula to simulate graph of temperature sensor in refer to time (which has saturate value at 63%) before entering the fc105 on s7-300? thanks firza
frzz Posts: 36 Rating: (1)
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5/3/2012 6:35 AM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 9/20/2023 Posts: 937 Rating: (117)	Hi, There are so many ways to simulate the value, 1. if you have WinCC, Create an Internal tag (type:word/Float) and connect it to trend with with respect to time and then use WinCC tag Simulator (Start=> Simatic => WinCC => Tools) for simulating the internal tag. 2. Via Program: Connect a Memory variable (MWxx) to the Scaling FC input instead the actual Analog input and then simulate the Memory vaiable via VAT, Connect the Scaling FC output to the WinCC Trend Window / WinCC flexible Window. 3.If you have CFC: Use the trend System in the CFC. Go Online => Select the varible in the Chart (Temperature Sensor input) =>Right Click => insert into trend Display => Go to View => Open Trend Windows
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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5/3/2012 6:37 AM	Rate (0)
viralpatel Silver Member Joined: 11/18/2010 Last visit: 8/5/2022 Posts: 523 Rating: (31)	frzz hii all, how to make graph/formula to simulate graph of temperature sensor in refer to time (which has saturate value at 63%) before entering the fc105 on s7-300? thanks firza not able to undersrtand your query?? can you specify in detail viral patel

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5/3/2012 6:45 AM	Rate (0)
Aret Posts: 2348 Rating: (262)	Do you have non-linear sensor? If yes, please specify sensor type and it's characteristic curve.
Aret Posts: 2348 Rating: (262)
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5/3/2012 9:22 AM	Rate (0)
Ton Verra Gold Member Joined: 4/20/2007 Last visit: 8/30/2023 Posts: 724 Rating: (40)	If the sensor isn't one of the possibilities mentioned in your analog input properties in the hardware, you could try to make a curve. a set resistance will be a set temperature. the more points you put in the curve, the more accurate the temperature will be.

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5/3/2012 5:33 PM	Rate (0)
frzz Posts: 36 Rating: (1)	viralpatel frzz hii all, how to make graph/formula to simulate graph of temperature sensor in refer to time (which has saturate value at 63%) before entering the fc105 on s7-300? thanks firza not able to undersrtand your query?? can you specify in detail viral patel Hii viral patel. i mean, i want to make a simulation input which is like temperature sensor behaviour (exponential) after make that simuation input, then it will be scalled by FC105. after that the output will be compared with preset value as alarm limit. well i use it for scada simulation. thanks Firza
frzz Posts: 36 Rating: (1)
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This contribution was helpful to 1 thankful Users Lucky123

5/3/2012 5:37 PM	Rate (0)
frzz Posts: 36 Rating: (1)	Aret Do you have non-linear sensor? If yes, please specify sensor type and it's characteristic curve. Hii Aret, no, i dont have the hardware sensor, i just want to make input simulation, but its input charactiristic should be like temperature sensor (exponential). how to make that for S7-300? my plan is after make that simuation input, then it will be scalled by FC105. after that the output from FC105 will be compared with preset value as alarm limit. well i use it for scada simulation. Thanks Firza
frzz Posts: 36 Rating: (1)
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5/3/2012 5:42 PM	Rate (0)
frzz Posts: 36 Rating: (1)	Hiii Ton verra, how to make that curve as input simulation for s7 300? thanks
frzz Posts: 36 Rating: (1)
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5/4/2012 6:50 PM	Rate (0)
Aret Posts: 2348 Rating: (262)	New_value := Input_valuek + Old_value(1-k) // changing k from 0 to 1 you get different curves .... // transfer to FC105 here Old_value:= New_value Hope i finally got what you need....
Aret Posts: 2348 Rating: (262)
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5/15/2012 10:24 AM	Rate (0)
frzz Posts: 36 Rating: (1)	hii aret, it seemed to be wrong formula, could u see that file attached? i want like that graph. thanks firza Attachment TempSensorIIGraph.jpg (139 Downloads)
frzz Posts: 36 Rating: (1)
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