Sel SEL-421 - Page 320

R.5.20
SEL-421 Relay Reference Manual Date Code 20111215
SEL Communications Protocols
SEL MIRRORED BITS Communications
Tabl e 5 . 16 MIRRORED BITS Communications Protocol Settings
Name Description Range Default
TX_ID MIRRORED BITS communications ID
of this device
1–4 2
RX_ID M
IRRORED BITS communications ID
of device connected to this port
1–4; must be
different than
TX_ID
1
RBADPU Outage duration to set RBAD 1–10000 seconds 10
CBADPU Channel unavailability to set CBAD 1–100000 parts
per million
20000
TXMODE Transmission mode
a
a
Must be P for connections to devices that are not SEL-400 series relays.
N (normal),
P (paced)
N
MBNUM Number of M
IRRORED BITS commu-
nications data channels used for logic
bits
0–8 8
RMB1FL
b
b
Hidden based on MBNUM setting.
RMB1 channel fail state 0, 1, P P
RMB1PU
b
RMB1 pickup message count 1–8 1
RMB1DO
b
RMB1 dropout message count 1–8 1
•
•
•
•
•
•
RMB8FL
b
RMB8 channel fail state 0, 1, P P
RMB8PU
b
RMB8 pickup message count 1–8 1
RMB8DO
b
RMB8 dropout message count 1–8 1
MBTIME M
IRRORED BITS time synchronize
enable
Y, N N
MBNUMAN Number of analog data channels.
Hidden and set to 0 if MBNUM := 7
or 8.
0–n,
n=7–MBNUM
0
MBANA1
c
c
Hidden based on MBNUMAN setting.
Selection for Analog Channel 1 Analog quantity
label
LIAFM
MBANA2
c
Selection for Analog Channel 2 Analog quantity
label
LIBFM
MBANA3
c
Selection for Analog Channel 3 Analog quantity
label
LICFM
MBANA4
c
Selection for Analog Channel 4 Analog quantity
label
VA F M
MBANA5
c
Selection for Analog Channel 5 Analog quantity
label
VBFM
MBANA6
c
Selection for Analog Channel 6 Analog quantity
label
VCFM
MBANA7
c
Selection for Analog Channel 7 Analog quantity
label
VA B R M S
MBNUMVT Number of virtual terminal channels OFF,0–n,
n=7–MBNUM–
MBNUMAN
OFF