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do you know what I should to put in RET_VAL?

Created by: IMRibeiro at: 9/24/2010 9:33 PM (1 Replies)

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9/24/2010 9:33 PM	Rate (0)
IMRibeiro Posts: 3 Rating: (0)	dchartier Hello PHYU; What kind of scaling function are you using in Step 7? The integrated scaling functions areFC105 "SCALE" and FC106 "UNSCALE"; both of the have an input "Bipolar" whioch ill determine if the result is calculated from a 0-xxxx range (unipolar) or from a +/- xxxxx range. You should check how this input is set in the functions, if they are the ones used in the PLC program. Look at the Step 7 online help for more details on these functions,. Hope this helps, Daniel Chartier Hi, do you know what I should to put in RET_VAL? I'm using "SCALE" with unipolar Thanks!! Splitted from Analog input and out scaling in WinCC flexible using SIMATIC Manger STEP 7.
IMRibeiro Posts: 3 Rating: (0)	Last edited by: O_Moderator at: 9/27/2010 10:33 AM new subject after splitting Last edited by: O_Moderator at: 9/27/2010 10:32 AM new subject after splitting
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9/24/2010 10:57 PM	Rate (1)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 6/7/2023 Posts: 12036 Rating: (2595)	Hello Isis; Ret_Val is simply a register you use to evaluate the success of the function. See what the online help says in the description of FC105: RET_VAL: Returns a value of W#16#0000 if the instruction executes without error; see Error Information for values other than W#16#0000 So enter the address of any word-sized register, such as MW22, or DB100.DBW2, and use to read the status of the block. Hope this helps, Daniel Chartier

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