scaling analog

hello

i have an issue with scaling a temperature from a tc transmitter .

the measured range is from -10 to 140 and the output 0-10v so 0 is -10 degress and 10 v is 140.

i have a problem with scaling when using normx and scale x the result does not match the measured value.

Hello sukhoi;

You will get confirmation of O_Einstein's reply in the following article:

Module 6ES7 231-5QD30-0XB0: SM 1231 AI 4 x TC x 16 bit

“If temperature (reading), the value will be reported in degrees multiplied by ten (for example, 25.3 degrees will be reported as decimal 253).”

https://support.industry.siemens.com/cs/ca/en/view/43185104

If you are using any other analog input module, please indicate the part number (MFLB) of the AI module in your reply; in such a case yu will have to program Norm_X and Scale_X functions appropriately. Please show us your program for that module.

Hope this helps,

Daniel Chartier

hi

i using  WAS5 PRO THERMO to convert TC to 0-10v and the analog input in the 1212c cpu 

Hello sukhoi;

What selections have you set on the Dipswitxhes SW1 and SW2for your Wav5 Pro? Telling us how the TC transducer is set up will help us understand how you shpuld program your scaling blocks in the S7-1200.

These selections are described (in English) from page 17 of this instruction manual:

"Set input and output ranges, minimum input values and measuring span via the DIP switches SW1 and SW2 according to the following tables."

https://catalog.weidmueller.com/catalog/Start.do?localeId=en&ObjectID=8560720000

Look down until you see the Downloads/ "User Documentation" link.

Hope this helps,

Daniel Chartier

dchartier

Hello sukhoi;

What selections have you set on the Dipswitxhes SW1 and SW2for your Wav5 Pro? Telling us how the TC transducer is set up will help us understand how you shpuld program your scaling blocks in the S7-1200.

These selections are described (in English) from page 17 of this instruction manual:

"Set input and output ranges, minimum input values and measuring span via the DIP switches SW1 and SW2 according to the following tables."

https://catalog.weidmueller.com/catalog/Start.do?localeId=en&ObjectID=8560720000

Look don until you see the "User Documentation" link.

Hope this helps,

Daniel Chartier

 the setting is SW1 all are on exept 7 is off.

sw2 all are on but 7 and 5 off

Hello sukhoi;

And based on the proposed document, what settings are those dipswitches giving you? Does that correspond to the type of TC you are using and the temperature limits and range you want to read and scale in your program?

And how have you programmed your scaling blocks? A screenshot would be most appreciated.

If you don't start providing us with more complete information from your project, showing us your interest, it will be difficult to continue working with you.

Hope this helps,

Daniel Chartier