Description
Value or Value range/ Default
Property/ Para-
meter
Class of ASDU. Data sent from the slave
to the master can be assigned to two
classes: class 1 and class 2. Data in class
1 is sent with higher priority than data in
class 2.
Class 1 = 1
Class 2 = 2
Default: Class 1 = 1
Class
Interrogation group. 1 - 16 general or 1 -
4 counter interrogation.
1...16 (general) or 1...4 (coun-
ters)
Interrogation Group
Defines whether a new indication value
overwrites an older one in the queue.
True = 1
False = 0
Default: False = 0
Over Write
Priority of ASDU. This property defines
how the ASDU sent is placed in the class
1 and class 2 queues.
0...3
End of queue = 0
Middle = 1, 2
Beginning of queue = 3
Priority
Maximum update rate of indication
changes between OPC server and client
in milliseconds. 0 means that server sends
all the changes to the client.
0...60000
Default: 0
Update Rate
Data Class Spe-
cific
Specifies the format of timestamp if one
is used: none, short, or long. Long time
tag format cannot be used with a scaled
value.
Do not Send Time Tag = 0
Send Short Format Time Tag
= 1
Send Long Format Time Tag =
2
Default: Send Long Format
Time Tag
Time Tag Handling
Measured value (MV)
3.4.5.8.
Table 3.4.5.8-1 Configurable MV properties for OPC client
Description
Value or Value range/ Default
Property/ Para-
meter
Basic
Common data class according to IEC
61850.
MV
Common Data
Class
Addresses
39
Station Automation COM600 3.4
1MRS755382
IEC 60870-5-101 Slave (OPC) User's Manual
Summary of Contents for COM600 3.4
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