Schweitzer Engineering Laboratories SEL-787 - Table 4.50 LCD Display Point Settings

4.97
Date Code 20081022 Instruction Manual SEL-787 Relay
Protection and Logic Functions
Front-Panel Settings (SET F Command)
Boolean Display Point Entry Composition
Boolean information is the status of Relay Word bits (see Appendix J: Relay
Word B its). In general, the legal syntax for Boolean display points consists of
the following four fields or strings, separated by commas:
Relay Word Bit Name, “Alias,” “Set String,” “Clear String.”
where:
Any or all of Alias, Set String, or Clear String can be empty. Although the
relay accepts an empty setting Name as valid, a display point with an empty
Name setting is always hidden (see below). Commas are significant in
identifying and separating the four strings. Use quotation marks only if the
text you enter for Alias, Set String, or Clear String contains commas or spaces.
For example, DP01 = Name,Text is valid, but Name, Alias 3 is not valid
(contains a space). Correct the Alias name by using the quotation marks:
Name, “Text 3”. You can customize the data display format by entering data in
selected strings only. Table 4.51 shows the various display appearances
resulting from entering data in selected strings.
Hidden (No Display)
A display point is hidden when settings are entered (DPn = XX, where n = 01
through 32 and XX = any valid setting), but nothing shows on the front-panel
display. Table 4.51 shows examples of settings that always, never, or
conditionally hide a display point.
Table 4.50 LCD Display Point Settings
Setting Prompt Setting Range
S e t t i n g N a m e : =
Facto ry Default
DISPLAY POINT DP01 60 characters DP01 := RID,"{16}"
DISPLAY POINT DP02 60 characters DP02 := TID,"{16}"
DISPLAY POINT DP03 60 characters DP03 := IAVW1MAG, "W1 AVE I {5} A"
DISPLAY POINT DP04 60 characters DP04 := IAVW2MAG, "W2 AVE I {5} A"
DISPLAY POINT DP05 60 characters DP05 :=
·
·
·
DISPLAY POINT DP32 60 characters DP32 :=
Name = Relay Word bit name (IN101, for example). All binary
quantities occupy one line on the front-panel display (all
analog quantities occupy two lines).
Alias = A more descriptive name for the Relay Word bit (such as
TRANSFORMER 3), or the analog quantity (such as
TEMPERATURE).
Set String = State what should be displayed on the LCD when the
Relay Word bit is asserted (CLOSED, for example)
Clear String = State what should be displayed on the LCD when the
Relay Word bit is deasserted (OPEN, for example)