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How to get Hardware Fan Speed Robot Web Service

Dear All, 

I am able to get many option or information about robot with WebService but cannot get Fan Speed or Module Temp information which can be seen System Info from Flexpendant.

Example path on flexpendant : System Info _ Hardware Devices _ Controller _ Computer System _ Fans _ Main Computer Fans.

So do you have any idea for the webService URL for them?

Thanks in advance

Regards