Revision 6    HC900 Process & Safety Controller User and Installation Manual  163 
21 April 2017 
File Download/Upload Functions 
The following is a general description of file transfers between the controller and computer devices external 
to the controller.   
 
Performing download procedures incorrectly could cause loss of control in an 
operating process or loss of data and program files in a controller.    
Refer to the appropriate User's Manuals for download/upload procedures. 
Failure to comply with these instructions may result in product damage. 
 
Two types of software files can be downloaded to the controller: 
  Configuration files 
  Firmware files. 
Configuration files can also be uploaded from the controller for archiving.  Firmware can only be 
downloaded to the controller.  Pathways for file transactions between the controller and computer devices 
external to the controller are shown in Figure 86. 
 
 
Figure 86 – Pathways for Upload/Download Transactions