FB_MDP_Device_Read_DevName

FB_MDP_Device_Read_DevName 1:

The function block enables the device name to be queried. This information is in the General Area of the MDP. (General information on the MDP information model)

VAR_INPUT

VAR_INPUT
    bExecute        : BOOL;             (* Function block execution is triggered by a rising edge at this input.*)
    tTimeout        : TIME  := DEFAULT_ADS_TIMEOUT; (* States the time before the function is cancelled. *)
    sAmsNetId       : T_AmsNetId;          (* keep empty '' for the local device *)
END_VAR

bExecute

The function block is called by a rising edge on the input bExecute, if the block is not already active.

tTimeout

Specifies a maximum length of time for the execution of the function block.

sAmsNetId

For local access don't specify this input or allocate an empty string. For remote access to another computer specify its AMS Net Id.

VAR_OUTPUT

VAR_OUTPUT
    bBusy       : BOOL;
    bError      : BOOL;
    nErrID      : UDINT;
    sDevName    : T_MaxString;
END_VAR

bBusy

This output is TRUE as long as the function block is active.

bError

Becomes TRUE as soon as an error situation occurs.

nErrID

Returns an error code if the bError output is set.

sDevName

The queried name is output as a string at this output.

Requirements

Development environment

Target platform

PLC libraries to be linked

TwinCAT v2.11.0 Build >= 1541

PC or CX (x86, ARM)

TcMDP.Lib