ProSoft Technology 5201-DFNT-104S - Manual (Page 43)

IEC-60870-5-104 (104S) Protocol Implementation 104S v2 ♦ ProLinx Gateway
Protocol Manual (Firmware v2.xx)
ProSoft Technology, Inc.
Page 43 of 157
3 IEC-60870-5-104 (104S) Protocol
Implementation
In This Chapter
Module Address .................................................................................... 44
Monitor Direction and Control Direction: Point Definition ....................... 47
Using Monitor Points ............................................................................. 49
Using Control (Command) Points .......................................................... 62
Data Communication ............................................................................. 70
Events ................................................................................................... 75
Sequence Flag ...................................................................................... 89
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 104S v2 works as an IEC-60870-5-104 server; it can send monitor data,
receive commands, or generate events to the client unit.
March 19, 2010