F_ARGISZERO

This function returns TRUE if one of the T_Arg member variables has the value zero or was not initialized.
 Return value
Name  | Type  | Description  | 
|---|---|---|
F_ARGISZERO  | BOOL  | 
  | 
 Inputs
VAR_INPUT
    arg : T_Arg;
END_VARName  | Type  | Description  | 
|---|---|---|
arg  | T_Arg  | Variable to be checked (type : T_Arg).  | 
Requirements
Development environment  | Target platform  | PLC libraries to be integrated (category group)  | 
|---|---|---|
TwinCAT v3.1.0  | PC or CX (x86, x64, Arm®)  | Tc2_Utilities (System)  |