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Since version D2000 v7.1.0, release A050525000, a new ASDU 252 h=
as been implemented into the communication protocols IEC 870-5-104 and IEC 870-5-104 Server. The ASDU 252 allows data =
transfer between two D2000 Systems, one of them uses the protocol I=
EC 870-5-104 and the other one uses IEC 870-5-104 Server=
strong>.
ASDU 252 should be used if you need to transfer:
Note for patches from 19.5.2023 and later: if the respective input and o= utput I/O tags are not of the same type, the conversion will take place, an= d at the same time a warning will be saved in the line log.
C= ommunication station parameters:
Keyword | Full name | Meaning | Unit | Default value |
---|---|---|---|---|
=
D2CLS
|
D2000 Copy Limit Status | The parameter is set on the station that is the =
parent of input I/O tags for which the partner station sends ASDU 252. Such=
I/O tag then ignores its defined limits and copies the ValueLimitStat=
us (basic obje=
ct attribute) of its control object. If there are configured process alarms for input I/O tag, they will be evaluate=
d according to the ValueLimitStatus copied from the control objec=
t. Note: The parameter D2VCO m= ust be set on the partner station. |
- | False |
=
D2CPA
|
D2000 Copy Process Alarms | The parameter is set on the station that is the =
parent of input I/O tags for which the partner station sends ASDU 252. Such=
I/O tag then ignores its configuration and copies process alarms of the co=
ntrol object of partner output I/O tag. Note: The parame= ter D2VCO must be set on the partner station. |
- | False |
=
D2VCO
|
D2000 ASDU Value from Control Object | The parameter is set on the station that is the =
parent of output I/O tags with defined ASDU 252. If a control object is def=
ined for such I/O tag, then the value of the control object is sent to comm=
unication as the output value (along with its basic object attributes - ValueType=
, ValueTime, ValueStatus, ValueLimitStatus, =
ValueProcAlarmStatus, ...). Warning: In this case,= there are ignored all configuration of output I/O tag concerning process a= larms, limits and value conversion ! Value of output I/O tag seems to be co= rrect within D2000 system, but there is sent "raw" value of control object = into communication. Note: To send "raw" value of control= object, the value types of control object and output I/O tag must be the s= ame, otherwise there is sent ordinary output value. This behavior was modif= ied in patches from 19.5.2023 and later - the value is always sent. |
- | False |
Notes:
Related pages: