ST_MDP_Addr

TYPE ST_MDP_Addr :
STRUCT
    nArea       : BYTE;     (* Area [range: 0x0-0xF] *)
    nModuleId   : BYTE;     (* Dynamic Module Id [range: 0x00-0xFF] *)
    nTableId    : BYTE;     (* Table Id [range: 0x0-0xF] *)
    nFlag       : BYTE;     (* Flags [range: 0x00-0xFF] *)
    nSubIdx     : BYTE;     (* SubIndex [range: 0x00-0xFF] *)
    arrReserved : ARRAY[0..2] OF BYTE;
END_STRUCT
END_TYPE

The structure contains information that is required for the MDP addressing.

nArea	Possible MDP areas are listed in E_MDP_AddrArea.
nModuleId	The Module ID is assigned dynamically. It does not correspond to the module types listed in E_MDP_ModuleType. The function block FB_MDP_ScanModules can be used in order to determine a dynamic Module ID for a special type of module.
nTableId	This value specifies the number of the selected table of the selected module.
nFlag	This parameter is used internally only. It remains at the default value of 0x00.
nSubIdx	The Subindex parameter corresponds to the subindex in a table in an MDP module.

Detailed information on MDP addressing can be found in the documentaion IPC Diagnostic - Ads Overview.