During the connection process of a driver module to thaTEC:OS, the min/max values for each control are obtained from the properties of the individual controls and transmitted to thaTEC:OS. If the min/max values in the scan definition are not correct, there are possible origins.
1) The min/max values of the control were changed during the program runtime after the connection to thaTEC:OS. In this case, the properties need to be re-sent using the properties.vi. Please see also the example in the programming template (current range control).
2) Check the representation of your control. For example, currently, single precision (SGL) values are not recognized, thus, please change the representation of the control to integer or double precision.