Technical description 6 Communication 6.2 Communication protocols
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The following ASDU (Application Service Data Unit) types will
be used in communication from the device:
ASDU 1: time tagged message
ASDU 3: Measurands I
ASDU 5: Identification message
ASDU 6: Time synchronization and
ASDU 8: Termination of general interrogation.
The device will accept:
ASDU 6: Time synchronization
ASDU 7: Initiation of general interrogation and
ASDU 20: General command.
The data in a message frame is identified by:
type identification
function type and
information number.
These are fixed for data items in the compatible range of the
protocol, for example, the trip of I> function is identified by:
type identification = 1, function type = 160 and information
number = 90. "Private range" function types are used for such
data items, which are not defined by the standard (e.g. the
status of the digital inputs and the control of the objects).
The function type and information number used in private
range messages is configurable. This enables flexible
interfacing to different master systems.
For more information on IEC 60870-5-103 in Vamp devices
refer to the “IEC103 Interoperability List” document.
Parameters
Parameter Value Unit Description Note
Addr
1 254
An unique address within
the system
Set
bit/s
9600
19200
bps Communication speed Set
MeasInt
200 10000
ms
Minimum measurement
response interval
Set
SyncRe
Sync
Sync+Proc
Msg
Msg+Proc
ASDU6 response time
mode
Set
Set = An editable parameter (password needed)
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