ABB Relion 615 Series Protocol Manual page 27

1MRS756709 D
615 series
Communication Protocol Manual
Legacy master UR allows non-standards compliant behavior.
Legacy master SBO provides compatibility to some older DNP3 masters for the
Select Before Operate command. When disabled, DNP3 expects the application
layer sequence of the operate command to be the select command sequence + 1
modulo 16. When enabled the IED ignores sequence number of the operate
command. This situation might occur when the master sends additional requests
between the select and operate commands.
Legacy master SBO allows non-standards compliant behavior.
Additional parameters
Need time interval is the interval in minutes for setting the need time bit in the IIN.
The IIN need time bit requests the DNP3 master to send a time synchronization to
the IED. When set to 0 the need time IIN bit is never set, and DNP3 time
synchronization is never requested. The time synchronization source needs to be
set to DNP3 to allow DNP3 time synchronization. DNP3 delay measurement can
have an adverse effect on time synchronization accuracy, and should be avoided
for TCP/IP.
Default Variation Obj N is the variation that the slave replies with when the master
asks for DNP Object type N variation 0. It is also the variation in which class
events are reported.
Table 9: Default variation options for supported DNP object types
DNP Obj N Default variation option
1
1 2
1
2 2
1
2
3
30 4
1
2
3
32 4
Variation description
Binary input
Binary input with status
Binary input event
Binary input event with time
32 bit analog input
16 bit analog input
32 bit analog input without flag
16 bit analog input without flag
32 bit analog input event
16 bit analog input event
32 bit analog input event with time
16 bit analog input event with time
Section 4
DNP3 parameters
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