error 201003 trying to read multiple analog inputs on 9172 chassis

[adamharden25]

I'm new to the forums, so forgive me if this has been answered already.

Im using the c-DAQ 9172 chassis with a 9221 Analog input module. I want to read three transducers in real time. The problem i have is two if the transducers are 7.5K psi rated and one is 100 psi rated, making me use two diferent scales. I can do N channels on the reading of the system but will only allow me to read the two 7.5 K transducers.  I dont use DAQ assistant, I create a virtual channel and add all of the components to read from the module. When I create a different instance for the third transducer, it gives me the error: Error 201003, module is already reserved. I need some help please. Let me know of another way to accomplish what im trying to do. I have used the DAQ assistant, but the data is incorrent on the 100 psi transducer, which is why i manually create the virtual channel.

[Dennis_Knutson · Accepted solution]

If you had searched for the error code or message, you would have found numerous posts on this common problem for beginners. You simply cannot use multiple tasks for a single hardware resource. Use multiple Create Channel functions, each connected to the next and specify your scale.

[adamharden25]

Can you explain "Each ocnnected to the next"? And are you referring to the Create Virtual Channel.vi?

[Dennis_Knutson]

There is a task output of the function. Connect the task out to the task in just like you connect error out to error in.

[adamharden25]

I got it working, Thanks Dennis!!