S600+ Instruction Manual 
Revised July-2017  I/O  4-25 
4.3  HART Module (P188) 
A 12-channel I/O module provides communications between Highway 
Addressable Remote Transducer (HART
®
) devices and the S600+. 
Each digital input channel is capable of handling up to 8 devices (up to 
a maximum of 50 transmitters for the HART module). The S600+ 
supports point-to-point, multi-drop, and dual master architectures.   
You make connections through two 25-pin D connectors located on the 
backplate of the HART module. Socket A connects to a 25-pin male 
connector and socket B connects to a 25-pin female connector. See 
Figure 4-31. Tables 4-24 and 4-25 provide pin connection information 
for the two ports (SKT-A and SKT-B) respectively. Figures 4-32 
through 4-34 provide field wiring information.  
 
Figure 4-31. HART Module (P188) 
Table 4-24. HART Pin Connections (Socket A)