2/12/2014 2:26 PM | |
Posts: 27 Rating: (0) |
Dear All, I’m using S7-300. I need to scale an output value for a valve open control. I have an I/O field on my SCADA (WinCC v6.0) in whichthe operator inputs value between 0% and 100%, which is the percent of the valve open, 0% for 4 mA and 100% for 20 mA. I’ve tried to use FC105 and FC106, but in both cases I have 0 on the OUT. I’ve also tried to write the formula from these functions’ “help” manually, but the result was same (zero on the “out”). I’d like to know what I am doing wrong. Thanks in advance andBest Regards! AttachmentSCALING.zip (44 Downloads) |
2/12/2014 3:49 PM | |
Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (713)
|
Hello, You are using the FC105 and 106 in the wrong way. Your STL code is not correct. I have attached an example how to use both the scaling blocks and STL for unscaling. Regards, Marcjan AttachmentFC1_forum.pdf (67 Downloads) |
Problem solved? |
|
This contribution was helpful to1 thankful Users |
Follow us on