We fail to properly communicate with the turbo V70 controller, model 969-9507, using RS232.
The communication is ok for all commands that do not answer with more than two bytes, like start and stop.
However, commands supposed to answer with more than two bytes, like parameters reading commands "E" and "G", apparently do not send any answer.
We have been using different computer to test this, but the problem is the same for all.
Thanks for helping.