IOF_GetDeviceType

IOF_GetDeviceType 1:

The IOF_GetDeviceType function block determines the type of device, knowing the device ID. The device IDs are specified by the TwinCAT system during the configuration and cannot be configured by the user.

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: The ID of the device whose device type is to be read

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;
    IODeviceType : IODEVICETYPES;
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.

IODeviceType: The device type constant (type: IODEVICETYPES).

Example:

PROGRAM MAIN
VAR
    GetDeviceType1 : IOF_GetDeviceType;
    Start_GetType  : BOOL;
    GetType_Busy   : BOOL;
    GetType_Err    : BOOL;
    GetType_ErrId  : UDINT;
    DeviceType     : IODEVICETYPES;
END_VAR

 

IOF_GetDeviceType 2:

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)