User manual
MVI56-HART ♦ ControlLogix Platform  Ladder Logic 
HART Multi-drop Master Communication Module   User Manual 
ProSoft Technology, Inc.  Page 55 of 171 
October 13, 2011 
3.1.3  Data Object (HARTData) 
The HARTData object is defined in the example ladder logic to demonstrate how the data 
from a module can be stored in the processor. This object can be used to temporarily 
store a received data set. In this example, four data areas are set up; two for input data 
(data received from the module) and two for output data (data to transfer to the module). 
Within each of these two areas, an area for floating-point data and integer data is 
defined. The following table describes the structure of the object. 
Name  Data Type  Description 
HART_IN_Float_vals  REAL[100]  Data area to floating-point data 
HART_IN_Int_vals  INT[100]  Data area to hold integer data 
HART_OUT_Float_vals  REAL[100]  Data area for output floating-point data 
HART_OUT_Int_vals  INT[100]  Data area for output integer data 










