D.12
SEL-751 Relay Instruction Manual Date Code 20170927
DNP3 Communications
DNP3 in the SEL-751
The modem settings in Table D.8 are only available for DNP3 serial port sessions.
Session 3 Settings
DNPIP3
a
IP address (zzz.yyy.xxx.www) 15 characters “”
DNPTR3
a
Transport protocol UDP, TCP TCP
·
·
·
URETRY3
a,c
Unsolicited messages maximum retry attempts 2–10 3
UTIMEO3
a,c
Unsolicited messages offline timeout, seconds 1–5000 60
Session 4 Settings
DNPIP4
a
IP address (zzz.yyy.xxx.www) 15 characters “”
DNPTR4
a
Transport protocol UDP, TCP TCP
·
·
·
URETRY4
a,c
Unsolicited messages maximum retry attempts 2–10 3
UTIMEO4
a,c
Unsolicited messages offline timeout, seconds 1–5000 60
Session 5 Settings
DNPIP5
a
IP address (zzz.yyy.xxx.www) 15 characters “”
DNPTR5
a
Transport protocol UDP, TCP TCP
·
·
·
URETRY5
a,c
Unsolicited messages maximum retry attempts 2–10 3
UTIMEO5
a,c
Unsolicited messages offline timeout, seconds 1–5000 60
Serial Port Settings
MINDLY
b
Minimum delay from DCD to TX, seconds 0.00–1.00 0.05
MAXDLY
b
Maximum delay from DCD to TX, seconds 0.00–1.00 0.10
PREDLY
b
Settle time from RTS on to TX; Off disables PSTDLY OFF, 0.00–30.00 0.00
PSTDLY
b
Settle time from TX to RTS off; hidden if PREDLY set to Off 0.00–30.00 0.00
a
Available only on Ethernet ports. Set DNPIPn = 0.0.0.0 to accept connections from any DNP master.
b
Available only on serial ports.
c
Hidden if UNSOLn set to N.
Table D.7 Port DNP3 Protocol Settings (Sheet 2 of 2)
Name Description
Range Default
Table D.8 Serial Port DNP3 Modem Settings (Sheet 1 of 2)
Name Description Range Default
MODEM Modem connected to port; all the
following settings are hidden if
MODEM set to N
Y, N N
MSTR Modem startup string As many as 30
characters
“E0X0&D0S0 = 4”
PH_NUM1 Primary phone number for
dial-out
As many as 30
characters
“”
PH_NUM2 Secondary phone number for
dial-out
As many as 30
characters
“”