Iec_103 Parameters; The General Principle Of Application Data Mapping - ABB REF 54 Series Technical Reference Manual, General

REF 54_
9.2.
9.3.
114
Feeder Terminal
Technical Reference Manual, General

IEC_103 parameters

Adjustable IEC_103 serial communication parameters are shown in the table below.
Parameter
Unit address 1...254
Baud rate 9600, 19200
Function type 0...255
Scale factor 1.2 or 2.4
Frame type 0...17
RTD data frame
0 or 1
1) Refer to Table 9.5.-3 on page 124
2) 0 = Off; 1 = On

The general principle of application data mapping

The interface between the REF 54_ physical applications and the IEC 60870-5-103
application layer is done accordingly:
Alternative A
If a corresponding REF 54_ application signal is defined by the IEC 60870-5-103
standard, the alternative A is used.
Alternative B
Refer to Digitale Stationsleittechnik - Ergänzende Empfelungen zur Anwendung in
Verteilnetzstationen by Vereinigung Deutscher Elektrizitätswerke.
Alternative P
Private definitions are basically used because of two reasons:
1. The standard does not define the signal.
2. The signal is defined by the standard but the REF 54_ application signal
interface differs from this model.
Class 1 data buffering and priorities
The internal IEC 60870-5-103/Class 1 buffer inside the REF 54_ can store up to 50
spontaneous events. The interrogation events and the possible response messages,
that also are part of the class 1 data, do not occupy space in the buffer. The priority
of the different categories of the pending class 1 data is always so that the response
messages have the highest priority, thereafter the spontaneous events and finally the
interrogation events. The IEC_103 data cannot be filtered by using event masks.
Circuit breaker failure protection (CBFP) is represented with the information type
number 85 in the device function type.
The user cannot effect the event flow from the IEC 60870-5-103 protocol by
adjusting the event masks of the REF 54_ applications.
Value Default value
1
9600
160
1.2
1)
1
2) 0
1MRS750527-MUM
Explanation
IEC_103 station address
Communication speed
Unit function type
Analog value scale factor
Measurement frame type
If RTD data frame is on, then it is
send to every second class 2
data poll. Store and reset is
needed.