9/16/2016 3:30 PM | |
Posts: 5 Rating: (0) |
Hi I have connected a trafag pressure sensor to AM2 module of LOGO 12/24 RCE and I have programmed it to show the pressure. I have disabled it's analog input so that first analog input of AM2 is first analog input. And I'm entered measurement range from 0-872 to see pressure in psi but it only shows number of offset. (in test massage text setting I've inserted Ax, amplified) I've connected 1 to 24V supply, 2 to AM2 current input and 3 to (-) and M to (-) Sensor model: 8472 82 5717 05 0000 0000 19 58 61 (catalog is attached) Please help me to know what's wrong ! I'm wrong in wiring or sensor has a problem? Thank you Hamid AttachmentH72324v_EN_8472_ECT_Industrial_Pressure_Transmitter.pdf (175 Downloads) |
9/16/2016 3:33 PM | |
Posts: 5 Rating: (0) |
Program is attached here |
9/16/2016 3:50 PM | |
Joined: 12/18/2014 Last visit: 5/5/2024 Posts: 32956 Rating: (4075)
|
Here is the file with the right settings by a sensor 4-20mA an a range 0-60 bar.
AttachmentPressure.zip (209 Downloads) |
This contribution was helpful to1 thankful Users |
9/16/2016 10:16 PM | |
Joined: 12/18/2014 Last visit: 5/5/2024 Posts: 32956 Rating: (4075)
|
Is your problem solved? |
9/18/2016 6:15 AM | |
Joined: 12/18/2014 Last visit: 5/5/2024 Posts: 32956 Rating: (4075)
|
The Logo converts analog values with 10 bits, limited to 1000 units (instead of 1024). 0.15 bar of 60 bar = 0.25% or 2.5 ‰ These are fault tolerance, which is in the normal range. That is the problem, which can occur with sensors with 4-20mA ever. AttachmentPressure_V2.zip (190 Downloads) |
This contribution was helpful to1 thankful Users |
Follow us on