Diagnosis
The function module that is allocated to the function call contains therequired import parameter &V1&. No value has been assigned to theparameter in the function call. For this reason, no value can betransferred for the parameter, that is, the function cannot be carriedout.

Procedure
RESET N1
Set the corresponding indicator to specify whether you want to assign acharacteristic value, a variable, or a fixed value to the parameter.
Enter the name of the characteristic, variable, or the fixed value.