How to run two inputs in one loop?

I'm trying to run a while loop that has two inputs and one output.
The two programs are:
-A Thermocouple which is connected to a controller which sends an output
-A flowmeter that sends an input voltage to be read in LabView.
When I run both programs separately they work fine, but when running in the same loop I get an error.
The Error is in the input DAQ assitant of the Thermocouple. This is the message:
"Error - 50103 occured at DAQmx Readv(Analog 1D wfm NChan NSamp).vi."
This error also comes up when running both programs on separate loops, separate files, but simultaneously. I think I'm just missing a command. Is that right?
Can someone help me to figure out what the problem may be.
Thanks!!!!

Oops, started the message refering Ni-DAQ and mistyped Ni-MAX, mid-afternoon slump I guess. As Dennis' vi shows you can configure each of the channels seperately, by configuring NI-DAQmx global channels and then calling them from your program. I would recommend Ni-DAQ 7.4, it has solved a couple of issues that I was having at one customer and has some interesting features. One is the ability to simulate a number of NI DAQ cards in NI-Max. Although the simulations are not very complete they allow doing configuration in your LabVIEW program without actually having the board(s) installed in your development system.
Putnam Monroe
Putnam
Certified LabVIEW Developer
Senior Test Engineer
Currently using LV 6.1-LabVIEW 2012, RT8.5
LabVIEW Champion

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