Schweitzer Engineering Laboratories SEL-749M - Table 7.46 SNS Command; Table 7.47 STATUS Command (Relay Self-Test Status); Table 7.48 STATUS Command Report and Definitions

7.24
SEL-749M Relay Instruction Manual Date Code 20080918
Communications
SEL ASCII Protocol Details
SNS Command
The SNS command displays the SER settings in Compressed ASCII format.
The setting name values are gathered in groups of eight names to be displayed
on each line of the report. The last line of the report may have fewer than eight
names. Each line is formatted as a comma-separated list of quoted setting
names, followed by a quoted hexadecimal representation of the checksum.
The checksum is calculated from the first quote mark of the line up to the last
comma before the checksum. If there are no setting name values, (i.e., all SER
settings are NA), no lines are generated for the report.
=>SNS <Enter>
"IN101","IN102","IN401","IN402","IN403","TRIP","RTDIN","OUT101","0DA4"
"OUT102","OUT103","OUT401","OUT402","OUT403","OUT404","ABSLO","TBSLO","0FC6"
"NOSLO","THERMLO","49T","LOSSTRIP","JAMTRIP","46UBT","50P1T","RTDT","104B"
"PTCTRIP","50G1T","VART","37PT","27P1T","59P1T","47T","55T","0D20"
"SPDSTR","50N1T","SMTRIP","81D1T","81D2T","OTHTRIP","AMBTRIP","PTCFLT","10E2"
"RTDFLT","COMMIDLE","COMMLOSS","REMTRIP","RSTTRGT","49A","LOSSALRM","JAMALRM","1383
"
"46UBA","RTDA","55A","50N2T","50G2T","VARA","37PA","27P2T","0C67"
"59P2T","SPDSAL","81D1A","81D2A","OTHALRM","AMBALRM","SALARM","WARNING","10B3"
"LOADUP","LOADLOW","50P2T","STOPPED","RUNNING","STARTING","STAR","DELTA","11E2"
"START","SPEED2","0411"
=>
STATUS Command (Relay Self-Test Status)
The STA command displays the status report.
Refer to Section 10: Testing and Troubleshooting for self-test thresholds and
corrective actions, as well as hardware configuration conflict resolution.
Table 7.48 shows the status report definitions and message formats for each
test.
Table 7.46 SNS Command
Command Description Access Level
SNS The SNS command displays the SER settings in
Compressed ASCII format.
0
Table 7.47 STATUS Command (relay self-test status)
Command Description Access Level
STA n Display the relay self-test information n times
(n = 1–32767). Defaults to 1 if n is not specified.
1
STA S Display the memory and execution utilization for
the SEL
OGIC control equations.
1
STA C or R Reboot the
relay and clear self-test warning and
failure status results.
2
Table 7.48 STATUS Command Report and Definitions (Sheet 1 of 2)
STATUS Report
Designator
Definition
Message
Fo r m at
FID Firmware identifier string (FID string)
CID Firmware checksum identifier xxxx
Current Offset
(L1, L2, L3, RES, CB)
DC offset in hardware circuits of current
channels
OK/WARN
Courtesy of NationalSwitchgear.com