Sel 2414 - Analog Display Point

8.3
Date Code 20130214 Instruction Manual SEL-2414 Transformer Monitor
Front-Panel Operations
Human-Machine Interface
Figure 8.4 shows the display when both HV and LV breakers are open (both
IN101 and IN102 deasserted). Figure 8.5 shows the display when the HV breaker
is closed, and the LV breaker is open (IN101 asserted, but IN102 still deasserted).
Display Points are not always displayed on the LCD. Table 8.2 shows the rules
for making sure the desired information is always or conditionally displayed.
Table 8.3 shows the rules for when Display Points will always be hidden, which
is usually a setting mistake.
Analog Display Point
In general, the syntax for analog display points consists of the following two
fields or strings: Name, “User Text and Formatting.” Unlike binary quantities, the
device displays analog quantities on both display lines.
Figure 8.4 Front-Panel Display—Both HV and LV Breakers Open
Figure 8.5 Front-Panel Display—HV Breaker Closed, LV Breaker Open
Table 8.2 When Display Points Are Conditionally Hidden
Name Alias
Set
String
Clear
String
Comment Example
1 • Empty Empty Never hidden DP01:=1,ALIAS1
• • – – Never hidden DP01:=IN101,ALIAS1
• • Null • Hidden if true DP01:=IN101,ALIAS1,,CLEAR
• • • Null Hidden in false DP01:=IN101,ALIAS1,SET,
• • • • Never hidden DP01:=IN101,ALIAS1,SET,CLEAR
Table 8.3 When Display Points Are Always Hidden
Name Alias
Set
String
Clear
String
Comment Example
0 – – – Always hidden DP01:=0
– – – – Always hidden DP01:=
• Null Null Null Always hidden DP01:=IN101,,,
• • Null Null Always hidden DP01:=IN101,ALIAS1,,
TRFR 1 HV BRKR:= OPEN
TRFR 1 LV BRKR:= OPEN
TRFR 1 HV BRKR:= CLOSED
TRFR 1 LV BRKR:= OPEN