AIN11 and 12 are wonky?

5 years 6 months ago #29530300 by mjepson
Most inputs read < 50 when not connected and > 4600 when connected to +5V.
AIN 11 and 12 though read < 3 when not connected and >8 when connected (but never more than 11)
If used as Digital Inputs (which I'm trying to do), they will always return 0.

Please Log in or Create an account to join the conversation.

5 years 6 months ago #29530305 by TechSupport
Replied by TechSupport on topic AIN11 and 12 are wonky?
Digital inputs are logic 1 or logic 0. If it is active, then it will return a 1 if queried, else it will return a 0.

Analog voltage is anywhere from 0 to +5V. You should not connect more than 5V on these inputs.

Please Log in or Create an account to join the conversation.

5 years 6 months ago #29530318 by mjepson
Replied by mjepson on topic AIN11 and 12 are wonky?
What I mean is the following:

EVERY digital input, EXCEPT 11 and 12 will show:
0 when not connected
1 when connected to +5V

Digital inputs 11 and 12 show:
0 when not connected
0 when connected to +5V

When used as ANALOG inputs, I get the following from EVERY input EXCEPT 11 and 12:
< 50 (mV) when not connected
> 4700 (mV) when connected to +5V

Analog inputs 11 and 12 show:
< 3 (mV) when not connected
> 8, < 11 (mV) when connected to +5V

I have never connected any external source, but I have always used one of the +5V output pins of the board itself.

Please Log in or Create an account to join the conversation.

5 years 6 months ago #29530319 by TechSupport
Replied by TechSupport on topic AIN11 and 12 are wonky?
So the controller you are using is a higher end model such as the HBL or HDC controller. It may be possible that on those inputs, that there may be a flaw in the firmware that would cause these to not work properly, though I would need to verify.

How old is the controller? On the bottom of the controller, there is a sticker on the bottom. It should have a 4 digit code written on there.

Please Log in or Create an account to join the conversation.

5 years 6 months ago #29530331 by mjepson
Replied by mjepson on topic AIN11 and 12 are wonky?
It is a RIO I/O Expansion Card and Navigation Computer (without AHRS), Rev 2.1, 1411.

Please Log in or Create an account to join the conversation.

Time to create page: 0.536 seconds