7-44
Inputs, Outputs, Timers, and Other Control Logic
Date Code 20010625
SEL-311L Instruction Manual
Figure 7.32: Rotating Default Display Replaces Traditional Panel Light Installations
There are sixteen (16) of these default displays available in the SEL-311L Relay. Each default
display has two complementary screens (e.g., BREAKER CLOSED and BREAKER OPEN)
available.
General Operation of Rotating Default Display Settings
SEL
OGIC
control equation display point setting DP
n
(
n
= 1 through 16) controls the display of
corresponding, complementary text settings:
DP
n
_1
(displayed when DP
n
= logical 1)
DP
n
_0
(displayed when DP
n
= logical 0)
Make each text setting through the serial port using the command
SET T
. View these text
settings using the serial port command
SHO T
(see
Section 9: Setting the Relay
and
Section 10: Line Current Differential Communications and Serial Port Communications and
Commands
). These text settings are displayed on the SEL-311L Relay front-panel display on a
time-variable rotation using Global setting SCROLD (see
Rotating Default Display
in
Section 11: Front-Panel Interface
for more specific operation information).
The following settings examples use optoisolated inputs IN101 and IN102 in the display points
settings. Local bits (LB1 through LB4), latch bits (LT1 through LT4), remote bits (RB1 through
RB8), setting group indicators (SG1 through SG6), and any other combination of Relay Word
bits in a SEL
OGIC
control equation setting can also be used in display point setting DP
n
.
Settings Examples
The settings examples provide the replacement solution shown in Figure 7.32 for the traditional
indicating panel lights in Figure 7.31.
Reclosing Relay Status Indication
Make SEL
OGIC
control equation display point setting DP1:
DP1 = IN102
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