FB_MDP_ReadModuleHeader

FB_MDP_ReadModuleHeader 1:

The function block enables the header of an MDP module to be queried.

VAR_INPUT

VAR_INPUT
    bExecute        : BOOL;
    nDynModuleId    : BYTE;             (* the dynamic module id for which the module header is requested *)
    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.
stMDP_DynAddr	The MDP addressing belonging to the selected network module is specified at this input. The dynamic Module ID must already be specified with it.
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;         (* indicates if Read was successfull or not *)
    nErrID          : UDINT;
    stMDP_ModHeader : ST_MDP_ModuleHeader;
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.
stMDP_ModuleHeader	The header information from the read MDP module is displayed at this output in the form of the structure ST_MDP_ModuleHeader.

Requirements

Development environment	Target platform	PLC libraries to be linked
TwinCAT v2.11.0 Build >= 1541	PC or CX (x86, ARM)	TcMDP.Lib