7.52
SEL-751 Relay Instruction Manual Date Code 20170927
Communications
Communications Protocols
Figure 7.31 shows the typical relay output for the STATUS S command,
showing available SEL
OGIC control equation capability.
HMI Front-panel FGPA programming unsuccessful,
or front-panel FPGA failed
OK/WARN
RAM Volatile memory integrity OK/FAIL
ROM Firmware integrity OK/FAIL
CR_RAM Integrity of settings in RAM and code that
runs in RAM
OK/FAIL
Non_Vol Integrity of data stored in nonvolatile memory OK/FAIL
Clock Clock functionality OK/WARN
RTD Integrity of RTD module/communications OK/FAIL
CID_FILE Configured IED description file OK/FAIL
x.x V Power supply status (Refer to Figure 1.4 and
Figure 1.5 for examples of STATUS command
responses)
Voltage/FAIL
BATT Clock battery voltage Voltage/WARN
CARD_C Integrity of Card C OK/FAIL
CARD_D Integrity of Card D OK/FAIL
CARD_E Integrity of Card E OK/FAIL
CARD_Z Integrity of Card Z (current/voltage) OK/FAIL
DN_MAC_ID Specific DeviceNet card identification Text Data
ASA Manufacturers identifier for DeviceNet Text Data
DN_Rate DeviceNet card network communications
data rate ___kbps
Text Data
DN_Status DeviceNet connection and fault status
000b bbbb
Text Data
Current Offset
(IA, IB, IC, IN)
DC offset in hardware circuits of
current channels
OK/WARN
Voltage Offset
(VA, VB, VC, VS)
DC offset in hardware circuits of
voltage channels
OK/WARN
=>STA S <Enter>
SEL-751 Date: 08/05/2015 Time: 15:26:39.570
FEEDER RELAY Time Source: External
Part Number 751501A103X70850630
Global (%) 79
FP (%) 75
Report (%) 91
GROUP 1 GROUP 2 GROUP 3 GROUP 4
Execution (%) 84 84 84 84
Group (%) 85 85 85 85
Logic (%) 89 89 89 89
=>>
Figure 7.31 Typical Relay Output for STATUS S Command
Table 7.45 STATUS Command Report and Definitions (Sheet 2 of 2)
STATUS Report
Designator
Definition Message Format
NOTE: The STA S report gives the
available SEL
OGIC capacity of the
relay. In the example, Execution 84%
means 84% of execution capacity is
still available.