[A_Camera]

Hi Ac,

All Modbus Standard VFD's read the same either RTU or ASCII, the plugin does the calculating. The test Plugin I sent you was a stripped down version( Safe Mode?) and the calculation for frequency was changed from how its normally calculated to help confirm it was a cultureinfo issue, and what part of my code it was coming from. Even though I used the wrong formula to calculate it still pointed me to the root of my problem.

Thank you for the cncdrive links above but if you read through you will see I posted there and I read through that thread.

Thanks for all your help,
Dan

I know all that and much more about Modbus. Anyway, the rpm to frequency convertion is wrong. That is what I wanted to tell you.
Oh well...