IOF_GetDeviceName

IOF_GetDeviceName 1:

The IOF_GetDeviceName function block reads the device name of an IO device. The device identifier can be specified by the user during the configuration in the TwinCAT system. When the system starts up it is then sent as a string to the I/O drivers, and can be read by the ADS commands. The I/O device whose device identifier is to be read is specified by the input variable DEVICEID.

VAR_INPUT

VAR_INPUT
    NETID     : T_AmsNetId;
    DEVICEID  : UDINT;
    START     : BOOL;
    TMOUT     : TIME := DEFAULT_ADS_TIMEOUT;
END_VAR

NETID: The network address of the TwinCAT computer on which the function is to be executed can be entered here (type: T_AmsNetID). If it is to be run on the local computer, an empty string can be entered.

DEVICEID: DeviceID specifies the device on which the function is to be executed. The device IDs are specified by the TwinCAT system during the hardware configuration.

START: the block is activated by a positive edge at this input.

TMOUT: States the length of the timeout that may not be exceeded during execution of the command.

VAR_OUTPUT

VAR_OUTPUT
    BUSY       : BOOL;
    ERR        : BOOL;
    ERRID      : UDINT;
    DEVICENAME : T_MaxString;
END_VAR

BUSY: When the function block is activated this output is set. It remains set until a feedback is received.

ERR: If an error should occur during the transfer of the command, then this output is set once the BUSY output was reset.

ERRID: Supplies the ADS error number when the ERR output is set.

DEVICENAME: The device name of the IO device (type: T_MaxString).

Requirements

Development environment	Target platform	IO hardware	PLC libraries to be integrated (category group)
TwinCAT v3.1.0	PC or CX (x86, x64, ARM)	All IO devices	Tc2_IoFunctions (IO)