9.47
Date Code 20120126 Instruction Manual SEL-2032 Communications Processor
Protocols
Distributed Network Protocol 3.0 (DNP3) LAN/WAN
As with Serial DNP3, in both the unsolicited report-by-exception and
quiescent polling methods shown in Table 9.26, you must make a selection for
the session’s PUNSLnn setting. This setting enables or disables unsolicited
data reporting at power up for this session. If your master can send the DNP3
message to enable unsolicited reporting from the SEL-2032, you should set
the session’s PUNSLnn to No.
Device Profile
Document
Table 9.27 contains the standard DNP3 over Ethernet device profile
information. Rather than checkboxes in the example Device Profile in the
DNP3 Subset Definitions, only the relevant selections are shown.
Unsolicited report-by-
exception
The slave devices send
unsolicited event data to the
master and the master occa-
sionally sends integrity
polls for static data.
Set ECLASSB, ECLASSC,
ECLASSA to the desired non-
zero event class, set UNSLnn
to Yes and PUNSLnn to Yes or
No.
Quiescent The master never polls and
relies on unsolicited reports
only.
Set ECLASSB, ECLASSC,
ECLASSA to the desired non-
zero event class, set UNSLnn
and PUNSLnn to Yes.
Table 9.26 DNP3 Over Ethernet Access Methods (Sheet 2 of 2)
Access Method Master Polling
SEL-2032/SEL-2701
Settings
Table 9.27 SEL-2032 DNP3 Over Ethernet Device Profile (Sheet 1 of 2)
Parameter Value
Vendor name Schweitzer Engineering Laboratories
Device name SEL-2032 Communications Processor with
SEL-2701 Ethernet Processor
Highest DNP3 request level Level 2
Highest DNP3 response level Level 2
Device function Slave
Notable objects, functions,
and/or qualifiers supported
None
Maximum data link
frame size transmitted/received (octets)
292
Maximum data link retries 0
Requires data link layer confirmation Never
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
Courtesy of NationalSwitchgear.com
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