PMX485 Error

from time to time I having this error
 
 
I have changed the USB to RS485 converter 
QTPlasmaC version is 1.0.40 

When we did the PMX485 originally a lot of it was done via guesswork as I don't have a machine with RS485 and the old HT documentation leaves a bit to be desired so the all the PMX485 code is not as efficient as it could be.
We have just begun a total rewrite of all the PMX485 code (including the arduino emulator) to be able to utilise the Powermax SYNC changes and enhancements. This should also make the comms with legacy Powermax machines more efficient as well.
If you can bear with us it shouldn't be too far down the track.

grijalvap wrote:

QTPlasmaC version is 1.0.40 

Oh my; 1.0.40 is from Jun 15, 2021. Tons has changed since then. Features added, bugs squished, etc. I use the serial comms with my powerMax pretty regularly. No issues. I suggest you update the works (might take a backup before you do, of course).

I did Update and it is working with out problems now, this was the only machine not updated, i realized when posted.