ProSoft Technology 5205-104S-PDPS - Manual (Page 35)

Protocol Implementation 4205/5205-TS-104S-PDPS ♦ ProLinx Standalone
IEC-60870-5-104 to PDPS Communication Module with Time Stamp
ProSoft Technology, Inc. Page 35 of 128
July 12, 2007
2 Protocol Implementation
In This Chapter
IEC-60870-5-104 (104S) Protocol Implementation ................ 35
Redundant Connections......................................................... 60
PDPS Protocol Implementation.............................................. 62
2.1 IEC-60870-5-104 (104S) Protocol Implementation
The intent of this section is to provide a quick understanding of how the 104S
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 essentially 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 4205/5205-TS-104S-PDPS works as an IEC-60870-5-104 server; it can
send monitor data, receive commands, or generate events to the client unit.