I/O Module Installation and Wiring - I/O Terminal Block Wiring Diagrams 
Revision 19   HC900 Process Controller Installation and User Guide  81 
06/14 
Step  Procedure  Comments   Reference 
11 
Install I/O module, install a 
Filler Block cover, Part 
number 900TNF-0001. 
 
12 
In each slot location not 
occupied by an I/O 
module, install a Filler 
Block cover, Part number 
900TNF-0001. 
Note: The Filler Block Cover looks much like an I/O Terminal 
Block assembly, except that it does not include the wire 
terminating block (screw terminals).  The Filler Block mounts in 
the same manner as a Terminal Block (with captured screws at 
top and bottom).  Blank labels are provided for mounting in the 
hinged door.