F_ARGISZERO

F_ARGISZERO 1:

This function returns TRUE if the value one of the T_Arg member is zero or not initialized.

FUNCTION F_ARGISZERO: BOOL

VAR_INPUT

VAR_INPUT
    arg : T_Arg;
END_VAR

arg: Variable to be checked.

Requirements

Development Environment

Target System Type

PLC Libraries to include

TwinCAT v2.10.0 Build >= 1327

PC or CX (x86, ARM)

TcUtilities.Lib