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Compensação de temperatura no V130


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Olá boa tarde.
Injete um sinal simulando um termopar e deu uma diferença de 20 graus e depois usei a compensação interna do injetor que corrige a leitura no display.
O Unitronics possui uma compensação interna ao conectar um termopar na entrada do plc V130.

IMG_20220321_204646433.jpg

IMG_20220321_161916039.jpg

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  • MVP 2021

Hi, i do not know V130 model present on foto.

Inside the V130-33-TA24 Unitronics PLC contains an MCP9801 chip for thermal compensation of the thermocouple cold junction.

It is located directly next to the TC connector on the PLC I / O board - on the back of the board.

MCP9801.thumb.jpg.c169aa4dceb9546c49e2bf8495fabbbd.jpg

Therefore, I think that all those PLCs that support thermocouples have similar compensation.

On the pages 3-4

https://www.unitronicsplc.com/wp-content/uploads/2016/08/Vxxx_J_TA24_SPEC_02_16.pdf

you can see TC input parameters and info about automatic cold junction compensation.

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