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Probelms forcing

Created by: 8aM at: 4/8/2013 11:25 AM (4 Replies)

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4/8/2013 11:25 AM	Rate (0)
8aM Advanced Member Joined: 12/27/2012 Last visit: 8/27/2024 Posts: 12 Rating: (0)	Hello! To scale analog I/O, I create an structure for each input/output with the following fields. I have a db for storing all these structs. RAW: read value (0-27648 in 0-10V) GAIN: foradjusting OFFSET: for adjusting VAL: scaled value ( "X" ºC, it temp sensor) To compute VAL I have an FC with two inputs: The adress (IW%64) where the wires are connected and the POINTER to this struct (P#DB2.DBX70.0). The problem is, when I try to change online the gain and offset value via watch-table nothing happens! The only way I can change these values is changing start value, and doing a "reset to factory settings"...(the problem occurs with retentive and no-retentive db's...) I think it could be something related with the pointer... any suggestion? Thanks!
	TIA Portal V11 SP2 Update5
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4/8/2013 11:51 AM	Rate (0)
Denilson Pegaia Platinum Expert Joined: 9/23/2005 Last visit: 10/4/2024 Posts: 4349 Rating: (1446)	Hi, could you tell us with more details where stay the variables that you try to change: it is a DB? stay just in the block contendes or it is a block parameter? it is an input, output or input/output parameter?
	Denilson Pegaia Siemens Industry Sector Technical Support
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4/8/2013 12:19 PM	Rate (0)
8aM Advanced Member Joined: 12/27/2012 Last visit: 8/27/2024 Posts: 12 Rating: (0)	Hi, Yes the variables are stored in a db that is created only for this use. It's retentive and compatible with S7-300. Parameters are declared as InOut in FC definition "stay just in the block contendes or it is a block parameter? " sorry, but i don't understant what you mean... In attachement, you can find an example (tia portal V11 SP5) that could clarify it. Attachment ExamplePointerForce.zip (233 Downloads)
	TIA Portal V11 SP2 Update5
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4/8/2013 6:31 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 10/4/2024 Posts: 15264 Rating: (2422)	Try creating a WATCH table and adjust the parameters for your DB_IO tags from there instead of the FORCE table.
	science guy
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This contribution was helpful to 1 thankful Users 8aM

4/8/2013 7:16 PM	Rate (0)
8aM Advanced Member Joined: 12/27/2012 Last visit: 8/27/2024 Posts: 12 Rating: (0)	Solved! But once I tried the same (I think so), and it didn´t work. Maybe 1200 only obeys platin members... =) Thank you.
	TIA Portal V11 SP2 Update5
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