Module restarting_

Legacy Legacy AirPrime modules
1

HAI , i am using Q2686G module ,i connected my Q2686 board with modbus protocol to Dc energy meter
when i am receiving response from the DC energy meter the module restarting ? can any one guess what is the problem?

2

Not from the very small amount of information that you’ve provided!

You need to provide much more detail!

At the moment, your question is like saying, “my car keeps stopping - what’s wrong with it?”

3

I am also working (almost done) with similar project using Q24 Plus and planning to implement on Q2686G. Can u tell where is the problem so that i can also give some suggestions.

4

Hiya,

You still haven’t provided much info to help diagnose your problem…

You say that you are ‘Waiting’ for a response from an energy meter. You’re not waiting in a while loop are you? i.e. something like this:

while(!dataAvailable);

because if you are, then you’re probably tripping the internal watchdog.

And before you ask, no - you can’t shut off the internal watchdog.

OpenAT is an event driven OS. You’ll have to subscribe to a can bus event and process your response data in the event handler.

Have a look at the following Forum Topic: viewtopic.php?f=7&t=3766#p16098

I think you’re going to have to be very careful when designing your modbus handler, as I recall that modbus requires some reasonably strict timing parameters - which you are NOT going to be able to to with counters and delays in OpenAT.

ciao, Dave

5

Hai all,
Thanks for your replies, I got where is the problem.i converted null value into float,
in openat this type of conversion is exception. so the module restarting.

6

Did you also read the warnings that you should not use %f in printf or sprintf with GCC…?

7

hi chandra,

Thanks for posting back the solution for the problem

Thanks,
haricool.