Schweitzer Engineering Laboratories SEL-387E - Appendix G: Distributed Network Protocol (Dnp3; Overview; Configuration

Date Code 20080110 Distributed Network Protocol (DNP3) G-1
SEL-387E Instruction Manual
APPENDIX G: DISTRIBUTED NETWORK PROTOCOL
(DNP3)
O VERVIEW
Some versions of the SEL-387E family of relays support Distributed Network Protocol (DNP3)
L2 Slave protocol. This includes access to metering data, protection elements (Relay Word),
contact I/O, targets, Sequential Events Recorder, breaker monitor, relay summary event reports,
settings groups, and time synchronization. The SEL-387E supports DNP point remapping and
virtual terminal object.
C ONFIGURATION
To configure a port for DNP, set the port PROTO setting to DNP. Although DNP may be
selected on any of the available ports, DNP may not be enabled on more than one port at a time.
The following information is required to configure a port for DNP operation:
Label Description Default
SPEED Baud rate (300–19200) 2400
T_OUT Port time-out (0–30 minutes) 5
DNPADR DNP Address (0–65534) 0
MODEM Modem connected to port (Y, N) N
MSTR Modem startup string (up to 30 characters) E0X0&D0S0=2
PH_NUM Phone number to dial-out to (up to 30 characters)
MDTIME Time to attempt dial (5–300 seconds) 60
MDRETI Time between dial-out attempts (5–3600 seconds) 120
MDRETN Number of dial-out attempts (0–5) 3
ECLASSA Class for Analog event data (0 for no event, 1–3) 2
ECLASSB Class for Binary event data (0 for no event, 1–3) 1
ECLASSC Class for Counter event data (0 for no event, 1–3) 0
DECPLA Currents scaling (0–3 decimal places) 1
DECPLV Voltage scaling (0–3 decimal places) 1
DECPLM Misc. scaling (0–3 decimal places) 1
TIMERQ Time-set request interval (0–32767 min.) 0
STIMEO Select/operate time-out (0.0–30.0 sec.) 1.0
DTIMEO Data link time-out (0–5 sec.) 1
MINDLY Minimum time from DCD to TX (0.00–1.00 sec.) 0.05
MAXDLY Maximum time from DCD to TX (0.00–1.00 sec.) 0.10
PREDLY Settle time from RTS on to TX (OFF, 0.00–30.00 sec.) 0
PSTDLY Settle time after TX to RTS off (0.00–30.00 sec.) 0
ANADBA Current analog reporting dead band (0–32767 counts) 100
ANADBV Voltage analog reporting dead band (0–32767 counts) 100
ANADBM Misc. analog reporting dead band (0–32767 counts) 100
ETIMEO
Event data confirmation time-out (0.1–50.0 sec) 2.0
DRETRY Data link retries (0–15) 3
UNSOL Enable unsolicited reporting (Y, N) N
PUNSOL Enabl e unsol icited reporting at power-up (Y, N) N