we are also struggling with the scaling problem. Our problem is not as exactly as you had faced.
See we are designing an application with redundancy of acquisition of Real Data.
By Redundancy i mean, Initially i am acquiring data from ethernet by simply binding the variable to the AI Channel. I have made two variables in library out of which one variable is binded with the channel and second variable is binded with the first variable. Scaling has been enabled on the second variable. So, i get the meaningful sensor value which is replica of the first variable value that is a raw value whose current status depends upon the sensor range. At this time RS 232 acquisition is in sleep mode.
If ethernet fails, serial read comes into action and aftersome time the meaning value (which is the corresponding to the senser raw value) in the second variable becomes zero.
By above line i mean to say that i am able to acquire data from channel but scaling does not work in serial case so the value becomes zero.
how to get the meaningful value in both cases. can you suggest any solution.
Thanks & Regards,