3/7/2017 9:01 AM | |
Posts: 3 Rating: (0) |
Hi all, I need some help with analog output. I have Siemens LOGO! 12/24RCE series 8 FS4, AM2 and AM2 AQ expansion modules. I would like to output 4-20mA at value that is same as input that is coming to AM2 module. Program has part for manual, fixed and remote speed. Manual and Fixed speed signals are ok. When I activate I1 and I2 inputs at same time it goes in remote mode and here I have some problem with scaleing of values. I have 4mA output with 0-4mA input, but I have 20mA output with 17mA input. Please tell me what is wrong in program, it must be something simple that I'm missing. Note: I3 is activation of fixed speed, and is overriding manual and remote speed signals as it should. I can't use AQ2 output for remote signal because I need it for some other stuff in program which I will add later. Attachmenttest_program.zip (229 Downloads) |
3/7/2017 11:17 AM | |
Joined: 12/18/2014 Last visit: 10/6/2024 Posts: 33883 Rating: (4215)
|
One of your problems is a cascaded amplifying. You amplified 2x in succession. For B015, you don't amplify. |
3/7/2017 12:06 PM | |
Posts: 3 Rating: (0) |
Thank you very much for fast answer, I changed values and now it's working as it should. |
This contribution was helpful to1 thankful Users |
Follow us on