11.58
SEL-421 Relay Instruction Manual Date Code 20171021
Relay Word Bits
Row Lists
Table 11.44 Relay Word Bits: MIRRORED BITS
Row Name Description
225 RMB1A–RMB8A Channel A receive MIRRORED BITS 1–8
226 TMB1A–TMB8A Channel A transmit M
IRRORED BITS 1–8
227 RMB1B–RMB8B Channel B receive M
IRRORED BITS 1–8
228 TMB1B–TMB8B Channel B transmit M
IRRORED BITS 1–8
229 ROKA Normal M
IRRORED BITS Communications Channel A status while not in loopback mode
229 RBADA Outage too long on M
IRRORED BITS Communications Channel A
229 CBADA Unavailability threshold exceeded for M
IRRORED BITS Communications Channel A
229 LBOKA Normal M
IRRORED BITS Communications Channel A status while in loopback mode
229 ANOKA Analog transfer OK on M
IRRORED BITS Communications Channel A
229 DOKA Normal M
IRRORED BITS Communications Channel A status
229 * Reserved
229 * Reserved
230 ROKB Normal M
IRRORED BITS Communications Channel B status while not in loopback mode
230 RBADB Outage too long on M
IRRORED BITS Communications Channel B
230 CBADB Unavailability threshold exceeded for M
IRRORED BITS Communications Channel B
230 LBOKB Normal M
IRRORED BITS Communications Channel B status while in loopback mode
230 ANOKB Analog transfer OK on M
IRRORED BITS Communications Channel B
230 DOKB Normal M
IRRORED BITS Communications Channel B status
230 * Reserved
230 * Reserved
Ta b l e 1 1 .4 5 Re l ay Wo rd Bi t s : Te s t B its
Row Name Description
231 TESTDB2 Communications card database Test Bit 2
231 TESTDB Communications card database Test Bit
231 TESTFM Fast meter test bit
231 TESTPUL Pulse test bit
231 LPHDSIM IEC 61850 logical node for physical device simulation
231 * Reserved
231 * Reserved
231 * Reserved
Table 11.46 Relay Word Bits: Virtual Bits (Sheet 1 of 2)
Row Name Description
232 VB249–VB256 Virtual Bits 249–256
233 VB241–VB248 Virtual Bits 241–248
234 VB233–VB240 Virtual Bits 233–240
235 VB225–VB232 Virtual Bits 225–232
236 VB217–VB224 Virtual Bits 217–224
237 VB209–VB216 Virtual Bits 209–216
238 VB201–VB208 Virtual Bits 201–208