Instruction Manual
Table Of Contents

MAN0970-04-EN      RCC972     Specifications / Installation 
Register Map 
5   Filter  
Filter Constant sets the level of digital filtering according to the 
following chart 
Digital Filtering module response to a temperature change. The 
illustration above demonstrates the effect of digital filtering (set 
with Filter Constant) on  
 8   Safety 
  When found on the product, the following symbols specify: 
  9  Technical Support 
  For assistance and manual updates, contact Technical Support at the following locations: 
Digital 
RCC972 
V+ 
DC Power In 
V+  
24V DC Out  
C 
0V 
Q4 
Digital Ou4 
Q3 
Digital Ou3 
Q2 
Digital Out2 
Q1 
Digital Out1 
C 
0V 
I8 
Digital In8 
I7 
Digital In7 
I6 
Digital In6 
I5 
Digital In5 
I4 
Digital In4 
I3 
Digital In3 
I2 
Digital In2 
I1 
Digital In1 
Registers 
Description 
%I1 to %I8 
Digital Inputs 
%I9 to %I15 
Reserved 
%I16 
%Q Fault Status 
%Q1 to %Q4 
Digital outputs 
%AI1 to %AI8 
Analog inputs 
%AQ1 to %AQ4 
Analog outputs 
North America:  
+1 (317) 916-4274 
www.heapg.com 
email: techsppt@heapg.com 
Europe:  
(+) 353-21-4321-266 
www.horner-apg.com 
email: techsupport@hornerirl.ie 
 All applicable codes and standards need to be followed in the installation of this product.  
 Adhere to the following safety precautions whenever any type of connection is made to the 
module:
 Connect the safety (earth) ground on the power connector first before making an
y other 
connections.
 When connecting to electric circuits or pulse-initiating equipment, open their related breakers. 
 Do not make connections to live power lines. 
 Make connections to the module first; then connect to the circuit to be monitored. 
 Route power wires in a safe manner in accordance with good practice and local codes. 
 Wear proper personal protective equipment including safety glasses and insulated gloves when 
making connections to power circuits.
 Ensure hands, shoes, and floor are dry before making any connection to a power line. 
 Make sure the unit is turned OFF before making connection to terminals. 
 Make sure all circuits are de-energized before making connections. 
 Before each use, inspect all cables for breaks or cracks in the 
insulation. Replace immediately 
if defective. 
•
 Use Copper Conductors in Field Wiring Only, 60/75° C 
WARNING: To avoid the risk of electric shock or burns, always connect the safety (or earth) 
ground before making any other connections.  
WARNING: To reduce the risk of fire, electrical shock, or physical injury it is strongly 
recommended to fuse the voltage measurement inputs.  Be sure to locate fuses as close to the 
source as possible. 
WARNING: Replace fuse with the same type and rating to provide protection against risk of fire 
and shock hazards.  
WARNING: In the event of repeated failure, do not replace the fuse again as a repeated failure 
indicates a defective condition that will not clear by replacing the fuse.  
WARNING: Only qualified electrical personnel familiar with the construction and operation of 
this equipment and the hazards involved should install, adjust, operate, or service this 
equipment. Read and understand this manual and other applicable manuals in their entirety 
before proceeding. Failure to observe this precaution could result in severe bodily injury or loss 
of life. 
60
20
10040 8020
0
10
100
90
80
70
60
50
40
30
Scans0
1
2 3 4 5 60 7
%Complete [ ]
Filter
Constant
This device complies with part 15 of the FCC Rules. Operation is subject to the following two 
conditions: 
1.  This device may not cause harmful interference. 
2.  This device must accept any interference received, including interference that may 
cause undesired operation.  
Warning: Consult 
user documentation. 
Warning: Electrical 
Shock Hazard. 
__________________________________________________________________________________________________________________________________________________________________ 
6/20/2013           Page 3 of 4              ECN  
No part of this publication may be reproduced without the prior agreement and written permission of Horner APG, Inc. Information in this document is subject to change without notice. 




