Description: Difference between the command variable and the feedback variable; Name: control difference
Description: difference between the reference variable and the feedback variable; Name: control difference variable
Description: The norm in fixed relation to the feature being described. This defines the parameters that influence the contents of the correlated feature. Type and number of the norm with issue year and issue month must be given, e.g. DIN ISO 4711:YYYY-MM.; Name: Reference norm of the connection, muff A2