Date Code 20010518 Commands 5-21
SEL-2020 Instruction Manual
*>>SWAP 4 6<ENTER>
SWAP 4 6<ENTER>SWAP 4 6<ENTER>
SWAP 4 6<ENTER>
Swap Port 6 settings with Port 4 settings (Y/N) ? Y<ENTER>
Y<ENTER>Y<ENTER>
Y<ENTER>
Port 6 Settings Changed
Port 4 Settings Changed
*>>
When you use the SWAP command, the SEL-2020 makes changes to port numbers used in
strings and in SEL
OGIC Control Equations within the settings on all ports, based on the following
rules: for the command format “SWAP n m”, any reference to port n will change to m, and any
reference to port m will change to n; any reference to a port other than n or m will remain
unchanged. You should always use SHOWSET after a swap to make sure all settings and port
references are as desired.
TARGET n m (Access Level 1)
The TARGET command displays global or port-specific element information. You enter G for
parameter n to display global elements or 1 through 16 for port-specific elements (Port F has no
elements). Port-specific elements include elements from the LOCAL region and from the
TARGET region (if it exists as a data region). For parameter m, enter the element row number
you want displayed or enter ALL to show all of the elements. You may add a repeat count as a
third parameter to repeat the displayed response the specified number of times. You can always
abort the display using the <CAN> character (<CTRL-X>).
Because many of the SEL-2020 elements will assert (logical 1) for only a few milliseconds, the
SEL-2020 elements displayed by the TARGET command are the logical OR of each element’s
status during the last one second period. If an element is asserted at any point within the last
second, the element status is displayed as asserted. When displaying repeatedly, each update will
be one second apart, so each will show the element status since the previous row’s display. The
TARGET display of the SEL IED elements will simply show the result of the most recent sample
from the device. See Section 7: SEL
OGIC Control Equations: for a description of all local and
global elements.
TIME (Access Level 1)
The TIME command displays and sets the internal clock. To set the clock, type TIME and the
desired setting, then press <ENTER>. To set the clock to 23:30:00, enter:
*>TIME 23:30:00<ENTER>
TIME 23:30:00<ENTER>TIME 23:30:00<ENTER>
TIME 23:30:00<ENTER>
23:30:00
*>
A quartz crystal oscillator provides the time base for the internal clock. You can also set the time
clock automatically through the SEL-2020 time-code input using a source of modulated or
demodulated IRIG-B time code. The SEL-2020 contains a battery-backed real-time clock, so the
time and date will be maintained through a loss of power.
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