TIA Portal Scaling analog input

MohammedKayed

Member
M
Join Date
Mar 2015
Location
Jordan
Posts
10
Hi Guys, I just want to scale an analog input (current ) from 4-20mA to an Integer value (0-100) in the PLC (S7-1500) also (300) using tia Portal version 13.
Any image show the block will be enough
 
Welcome to the Forum! I don't have TIA portal on my PC anymore, but I recall using the NORM & SCALE blocks. It's a two step process as there wasn't a single instruction available to do the job.

I believe the TIA help file had a example of this, have you checked it? Otherwise, it would be worthwhile to search this site for keywords TIA & SCALE.
 
RonJohn said:
Welcome to the Forum! I don't have TIA portal on my PC anymore, but I recall using the NORM & SCALE blocks. It's a two step process as there wasn't a single instruction available to do the job.

I believe the TIA help file had a example of this, have you checked it? Otherwise, it would be worthwhile to search this site for keywords TIA & SCALE.
Click to expand...

using plc 1500 I found these two blocks but on 300 i just only found scale
 
Your input will likely be 0..27648.

So divide by 276.48 to obtain 0..100%
 
Have always used the NORM_X and SCALE_X with 1200.

NORM_X is configured with the hi and low digital values (i.e. 27648, 0) if using 0 to 10V or 0 to 20mA, or (27648 and 5530) if using 4mA to 20mA. This will give you a value between 0 and 1.

The OUT of the NORM_X instruction is used as the VALUE input to the SCALE_X instruction. The Scale_X limits are then the engineering units (i.e. 0 and 10 bar, 0 and 100 cm), whatever the limits are of the measured variable.
 
I really don't get those new blocks. They do exactly the same as one divide block. Why add two blocks if you can do with DIV?
 
Just because they are easy, especially if using 4-20ma. Have used math based scaling too, they all work.


Tried to put a picture in and can't figure out how. (Figured it out)

Untitled.jpg
 
Last edited:
Tim,

You should change your input to 4..20 mA. Then you will get 0..27648.

Must be a matter of opinion, but I prefer to do one instruction without using a buffer.

Actually the SCALE that JRW proposed is what I been missing. The funny thing is, now that it is back, those two other ones are gone!
 

Similar Topics

C
TIA Portal / WinCC and windows scaling
Hi, Didn't found an answer to this particular problem. As everyone probably knows if you use windows scaling of display crazy things happen to...
Replies
1
Views
1,620
mk42
M
H
Load cells and Analog input scaling in tia portal
Dear all Iam using three load cells connected in parallel to calibrate the weight of a product but in don't have a weighting module in my...
Replies
4
Views
3,457
Hossamhegab
H
B
TIA Portal & Scaling
Hi All I'm from an Allen-Bradley background and i'm using an S7-300 on a project. With scaling a channel in AB I had a Scaling Block setup which...
Replies
6
Views
3,498
bgtorque
B
B
TIA Portal Scaling analog output
Hi Guys, I just want to scale an analog output to 0-10V from an Integer value in the PLC (S7-1500) using Portal version 13. I assume it hinges...
Replies
6
Views
8,675
bgeary
B
S
Modbus TCP connection between my plc and a power meter on TIA Portal
Hello gentlemen, Im working on a small project on TIA Portal, about establishing a Modbus TCP connection between my ET200SP plc and a socomec...
Replies
11
Views
240
saad94
S
Back
Top Bottom