7.32
SEL-751A Relay Instruction Manual Date Code 20100129
Communications
SEL ASCII Protocol and Commands
MAC Command
Use the MAC command to display the MAC addresses of PORT 1, as shown
below.
=>MAC <Enter>
Port 1 MAC Address: 00-30-A7-00-00-00
=>
MET Command (Metering Data)
The MET command (see Table 7.2 8, Table 7 .29, and Table 7.30) provides
access to the relay metering data.
For more information on metering and example responses for each meter
class, see Section 5: Metering and Monitoring.
On issuing the MET c R command for resetting metering quantities in class c,
the relay responds:
Reset Metering Quantities (Y,N)? Upon confirming
(pressing Y), the metering quantities will be reset and the relay responds with
Reset Complete.
Table 7.28 Meter Command
Command Description Access Level
MET c n Display metering data. 1
MET c R Reset metering data. 2
Table 7.29 Meter Command Parameters
Parameter Description
c Parameter for identifying meter class.
n Parameter used to specify number of times (1–32767) to repeat the
meter response.
Table 7.30 Meter Class
c
Meter Class
F
Fundamental Metering
E
a
a
Reset Metering Available.
Energy Metering
M
a
Maximum/Minimum Metering
R
RMS Metering
T
Thermal and RTD Metering
AI
Analog Input (transducer) Metering
DE
a
Demand Metering
PE
a
Peak Demand Metering
PM
Synchrophasor Metering
L
Light Metering for Arc-Flash Detection (AFD)
MV
SELOGIC Math Variable Metering