ProSoft Technology MVI46-103M - Manual (Page 11)

Quick Start MVI46-103M ♦ SLC Platform
IEC 60870-5-103 Master Communication Module
ProSoft Technology, Inc. Page 11 of 187
September 12, 2006
Step 4 - Sector (Data Set) Configuration
For each session (slave), you must configure one or more sectors (maximum of
5). A sector is a data set defined by the vendor. Each sector is identified by the
Common ASDU Address parameter in the [IEC-103 Master Session x Sector 0]
area in the configuration file. This area also contains some parameters that will
affect the module initialization procedure.
[IEC-103 Master Session 0 Sector 0]
Common ASDU Address : 0 #Range 0 to 255 Sector address
#Req init requests when session first online (not req if slave sends
# EOI sequence)
Online Time sync : Y #Send time sync message when first online
Online General Int : Y #Send general interrogation
#Req init requests when EOI (end of initialization) received from slave
EOI Time sync : Y #Send time sync message when first online
EOI General Int : Y #Send general interrogation
# ASDU Database Function Point
# Type Index Code Index
START
1 0 128 16
1 16 128 18
1 32 128 19
1 48 128 20
1 64 128 21
1 80 128 22
1 96 128 23
1 112 128 24
1 128 128 25
1 144 128 26
END
This step should be repeated for each sector used by the application. The
module will only use the sectors configured in the previous step.
Step 5 - Monitor Point Configuration (Monitor Direction)
After the slave receives a Class 1 or Class 2 request from the master, it responds
with a message containing data. Each piece of equipment is normally configured
to respond with specific points when it is being polled with a Class 2 request.
During a Class 2 response, the slave may set a control bit (ACD) to inform the
master that there are new events to be transmitted. Then, the master will send a
Class 1 poll to read the events from the slave.
The IEC 60870-5-103 protocol states that the data is transferred between the
master and slave using an ASDU (Application Service Data Unit) format. Each
format is given by:
Type Identification
Variable Structure Qualifier