H.7
Date Code 20080213 Instruction Manual SEL-351A Relay
Distributed Network Protocol
Device Profile
Device Profile
Table H.4 summarizes the device profile as specified in the DNP3 Subset
Definitions document:
Table H.4 SEL-351A DNP3 Device Profile (Sheet 1 of 2)
Parameter Value
Vendor name Schweitzer Engineering Laboratories
Device name SEL-351A
Highest DNP request level Level 2
Highest DNP response level Level 2
Device function Slave
Notable objects, functions, and/or qualifi-
ers supported
Supports enabling/disabling of unsolicited
reports on a class basis
Maximum data link frame
size transmitted/received (octets)
292
Maximum data link retries Configurable, range 0 to 15
Requires data link layer confirmation Configurable by setting
Maximum application fragment
size transmitted/received (octets)
2048
Maximum application layer retries None
Requires application layer confirmation When reporting Event Data
Data link confirm time-out Configurable
Complete application fragment time-out None
Application confirm time-out Configurable
Complete Application response time-out None
Executes control WRITE binary outputs Always
Executes control SELECT/OPERATE Always
Executes control DIRECT OPERATE Always
Executes control
DIRECT OPERATE–NO ACK
Always
Executes control count greater than 1 Never
Executes control Pulse On Always
Executes control Pulse Off Always
Executes control Latch On Always
Executes control Latch Off Always
Executes control Queue Never
Executes control Clear Queue Never
Reports binary input change events
when no specific variation requested
Only time-tagged
Reports time-tagged
binary input change events
when no specific variation requested
Binary Input change with time
Sends unsolicited responses Configurable with
enable/disable unsolicited
Sends static data in unsolicited responses Never
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