Heres the scenario:

I am using a brain to drive Mach3 via MPG which utilizes the "MPG Count" terminator which works fine.

During operation, the value for the "MPG Count" within the brain increments and decrements as you would expect by using the integer values that are generated
from the modbus device. A problem occurs if the modbus device is disconnected from Mach3 and then reconnected, Mach3 takes off as
soon as the device reconnects without touching anything. I know that as soon as the modbus device is reconnected, the brain is fed a value of "0" to the "MPG Count" which makes
the "MPG Count" also change to "0".This makes Mach3 think that the MPG is being rotated when in fact it hasnt been touched.....really dangerous.

Can anyone offer a solution or any insight to a workaround

My project if completed except for this issue and I've exhausted everything I can think of......thanks all