4.100
SEL-787 Relay
Instruction Manual
Date Code 20081022
Protection and Logic Functions
Front-Panel Settings (SET F Command)
Figure 4.66
Front-Panel Display—HV Breaker Open, LV Breaker Closed
If you want the relay to display a blank state when IN101 deasserts instead of
removing the line altogether, use the curly brackets {} for the Clear String, as
follows:
DP01 := RID, “{16}”
? IN101,"TRFR 1 HV BRKR:",CLOSED,{} <Enter>
When Input IN101 now deasserts, the relay still displays the line with the HV
breaker information, but the state is left blank, as shown in
Figure 4.67
Front-Panel Display—HV Breaker Open, LV Breaker Closed
Name Only
shows an entry in the Name String only (leaving the Alias string,
Set String, and Clear String void), using the
SET F
command as follows:
DP01 := RID, “{16}”
? IN101 <Enter
>
shows the front-panel display for the entry in
. Input
IN101 is deasserted in this display (
IN101=0
), but changes to
IN101=1
when
Input IN101 asserts.
Figure 4.68
Front-Panel Display for a Binary Entry in the Name String Only
Analog Display Point Entry Composition
In general, the legal syntax for analog display points consists of the following
two fields or strings:
Name, “User Text and Formatting.”
TRFR 1 LV BRKR:= CLOSED
TRFR 1 HV BRKR:=
TRFR 1 LV BRKR:= CLOSED
Table 4.53
Binary Entry in the Name String Only
Name
Alias
Set String
Clear String
IN101
—
—
—
IN101=0
Summary of Contents for SEL-787
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