Codesys Revpi connect analog Output

Uday_1009 · Post by **Uday_1009** » 06 Oct 2021, 09:51

Hello everyone,

I am new to codesys and facing one issue regarding the analog input and output. I want to measure the voltage of the battery through analog module. I have used channel one of AIO module with voltage measurement connections. My question is that how to measure the voltage? I have selected measuring range from 0-10V through codesys interface of AIO. I have selected the address of that channel i.e %IW36 and according to my understanding it shoud give me the raw values of ADC and the formula should be (10/65536)*raw values. Is it correct? ADC is of 16 bits I guess? Is there something I am missing because It gives zero all the time. Any leads to solve this problem would be helpfull that how to analog read function through codesys ??

->Johannes<- · Post by **->Johannes<-** » 11 Oct 2021, 12:50

Hi uday,

have you looked here yet?

Configuring Analog Inputs with CODESYS

Regards

Johannes

Uday_1009 · Post by **Uday_1009** » 13 Oct 2021, 10:22

Hi Johannes,

I looked at the configuring the analog inputs with codesys. I found the issue that one channel of AIO was not working and all others were working fine.

->Johannes<- · Post by **->Johannes<-** » 27 Oct 2021, 12:18

Hi uday,

nice to hear that it generally works, but not that the one channel is defective.

Did you buy the AIO through us or through a distributor? You might be able to get your AIO replaced if the conditions are right.

Regards
Johannes

Codesys Revpi connect analog Output

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