Semantic Error (SEM1091): The function '...' does not define any input parameters.
In the local 'Variables' table of a function POU, at least one input formal parameter must be declared with 'Usage = Input' (VAR_INPUT declaration keyword acc. to IEC 61131).
On creation of a new function POU, PLCnext Engineer automatically defines one input. If the error is reported for a local POU, this input has been deleted or its 'Usage' has been modified afterwards.
| Further Info
For information on variables and how to declare them refer to the topic "Declare Variables/FB Instances" |