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FS-8700-47 DNP 3.0 Driver Manual Page 29 of 51
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Bit
#
Explanation
response
Bit
2
Class 2 data available
Set when data that has been configured as Class 2 data is ready to be sent to the master
Master station should request this class data from the Outstation when this bit is set in a
response
Bit
3
Class 3 data available
Set when data that has been configured as Class 3 data is ready to be sent to the master
Master station should request this class data from the Outstation when this bit is set in a
response
Bit
4
Time-synchronization required from the master. The master synchronizes the time by writing
the Time and Date object to the Outstation.
Cleared when the time is set by the master. This bit is also cleared when the master explicitly
writes a 0 into this bit of the Internal Indication object of the Outstation.
Bit
5
Set when some or all of the Outstation's digital output points are in the Local state. That is,
the Outstation's control outputs are NOT accessible through the DNP protocol.
Clear when the Outstation is in the Remote state. That is, the Outstation's control outputs are
accessible through the DNP protocol.
Bit
6
Device trouble
Set when an abnormal condition exists at the Outstation. The device profile for a given device
states the conditions that affect this bit.
This should only be used when the state can not be described by a combination of one or
more of the other IIN bits.
Bit
7
Device restart
Set when the user application at the Outstation restarts.
Cleared when the master explicitly Writes a 0 into this bit of the Internal Indications object in
the Outstation.
Second Byte
Bit
0
Function code not implemented
Bit
1
Requested object(s) unknown. The Outstation does not have the specified objects or there
are no objects assigned to the requested class. This indication should be used for debugging
purposes and usually indicates a mismatch in device profiles or configuration problems.
Bit
2
Parameters in the qualifier, range or data fields are not valid or out of range. This is a catch-all
for application request formatting errors. This indication should be used for debugging
purposes and usually indicates configuration problems.
Bit
3
Event buffer(s), or other application buffers have overflowed. For example, COS/SOE buffers
have overflowed. The master should attempt to recover as much data as possible and
indicate to the user that their may be lost data. The appropriate error recovery procedures
should be initiated by the user.
Bit
4
Request understood but requested operation is already executing.
Bit
5
Set to indicate that the current configuration in the Outstation is corrupt and that the master
application layer should inform the user of this exception. The master may download another
configuration to the Outstation. Note that sometimes a corrupt configuration will disable an
Outstation, making it impossible to communicate this condition to a master station.
Bit
6
Reserved for use by agreement, currently always returned as zero (0).
Bit
7
Reserved for use by agreement, currently always returned as zero (0).