Hello, Claes
Could you help me set the ChanAI parameters for a PT1000 sensor?
Hello, Claes
Could you help me set the ChanAI parameters for a PT1000 sensor?
Do I need to use a ChanAI?
How do I know the sigvalrange channel?
How do I know the val range sensor signal?

For the RawValrange here are the characteristics of the card:





Thank you very much

Hi Seb,

Even if you don't need any conversion you have to use a ChanAi. And there is actually a 'No conversion' choice in the SensorPolyType (0) but I don't know if that works for all kind of I/O. So to play safe you use the default SensorPolyType (1) and set SensorSigValRange and ChannelSigValRange equal, for example 0-10, and also RawValRange and ActValRange equal, for example 0-100. Set Representation to Float32 and set format 8 IEEE on the device. You can probably also use format Dword with representation Int32 but I'm not sure what the RawValRange or ActValRange will be in this case.

/Claes

Hi Claes,
I had to cheat a bit because when I set conversion = 0 nothing was displayed, so I did it like this:





I don't know if it's correct but the value displayed varies with the temperature of the PT1000 sensor.

How do I read the internal temperature data from the module: Register 256, Id 242, so when I use Modbus TCPIP software (oModbusMaster) the value is displayed as 385 and it's 385x0.1 = 38°.5C.






My question is how to read 385 directly? with FC04 or FC03 with proview?


Thank you very much.

Translated with www.DeepL.com/Translator (free version)

I put a ChanLI then a conversion in Float and it works I display 385 that I have to divide by 10 so good .
Thanks

SEB

Hi Seb,

A RawValRangeHigh of 1000 and ActValRangeHigh of 100 would have given you the correct conversion.

/Claes