User manual
49TPTQ-104C ♦ 48TQuantum Platform  Reference 
47TIEC 60870-5-104 Client 
  12TUser Manual 
9.2  IEC-60870-5-104 Protocol Implementation 
The intent of this section is to provide a quick understanding of how the PTQ-
104C module implements the IEC-60870-5-104 protocol, without going into 
complex details of the specification. 
The IEC-60870-5-104 protocol applies to Telecontrol equipment and systems 
with data transmission for monitoring and controlling geographically widespread 
processes. This protocol consists of the IEC-60870-5-101 protocol, with the 
addition of TCP/IP as the transport mechanism.  
Any application with the IEC-60870-5-104 protocol consists of a client 
(Controlling Station) and one or more servers (Controlled Stations). The client 
constantly monitors and controls the data from each server in the TCP/IP 
network. 
The PTQ-104C operates as an IEC-60870-5-104 client; sending read or write 
commands to remote server(s). 
ProSoft Technology, Inc.  Page 109 of 136 
March 4, 2013 










