6.2 Communication protocols
6 Communication
Technical description
178
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VM50.EN004
Parameters for disturbance record reading
Parameter Value
Unit Description
Note
ASDU23 On
Off
Enable record info
message
Set
Smpls/msg
1
25
Record samples in one
message
Set
Timeout
10
10000
s
Record reading timeout
Set
Fault
Fault identifier number
for IEC-103.
trips of all stages.
TagPos
Position of read pointer
Chn
Active
channel
ChnPos
Channel read position
Fault numbering
Faults
Total number of faults
GridFlts
Fault burst identifier
number
Grid
Time window to classify
faults together to the
same burst.
Set
Set = An editable parameter (password needed)
6.2.6.
DNP 3.0
The relay supports communication using DNP 3.0 protocol.
The following DNP 3.0 data types are supported:
binary input
binary input change
double-bit input
binary output
analog input
counters
Additional information can be obtained from the “DNP 3.0
Device Profile Document” and “DNP 3.0 Parameters.pdf”.
DNP 3.0 communication is activated via menu selection. RS-
485 interface is often used but also RS-232 and fibre optic
interfaces are possible.