Hello, Thank you for contacting National Instruments.
I will need some additional information in order to make a good recommendation on how to program this application. From your post, it appears that you would like to read the voltage from the RH sensor and send a voltage to the MKS using your FieldPoint hardware. Please let me know if this is incorrect. Here are my questions: 1. What FieldPoint Modules do you have? (ie. FP-AI-110) 2. What version of LabVIEW do you have? 3. What range of voltage does your RH sensor produce? 4. What range of voltage can your MKS receive? I look forward to hearing from you. Simply reply to this posting. Regards, Bill B Applications Engineer National Instruments