11-20-2017 09:06 AM
Hello everybody
I try to connect the following accelerometer on myRIO port C MSP
http://www.pcb.com/Products.aspx?m=3711B1150G
I want to use myRio as a datalogger for measure acceleration on a mountainbike stem.
When I connect the data wire of the sensor to port C/AIO+ C/AIO-, I get a voltage of 1,3 V displayed in the VI.
If I change the connection of the data wire to port B3/AIO, I get a voltage at about
0,04 V. This amount makes sense because the sensitivity of the sensor is 40 mV/g.
The proplem is that I need analog inputs which support positive and negative voltage for the sensor.
Why does the ports return different values ?
Does anyone have an idea what the reason is ?
Thank you
Sascha
Solved! Go to Solution.
11-21-2017 03:04 AM
Hello DerSascha82,
what is connected to C/AI0- is there the same ground connected, which supplies the sensor?
Or better how looks the wiring exactly?
11-21-2017 07:03 AM
Hello Alexander Glasner,
thank you for your response. I fixed the problem this morning. It was a mistake of me. I missed to connect the ground to the C/AIO-. Now the sensor works on myRIO.
I add a picture of the wiring below
best regards
Sascha