12.20
SEL-400 Series Relays Instruction Manual Date Code 20171006
Settings
Alias Settings
For an analog display point, the syntax is:
Analog name, "User Text and Formatting", "Text Size"
See the Front-Panel Operations section for more information on configuring dis-
play points.
Local control bits are configured using the Local Control category. This is a
freeform category. Each entry has the following syntax:
Local bit name, "Label", "Set State", "Clear State", Pulse enable
See Local Control on page 4.20 for more information on configuring local con-
trol bits.
Alias Settings
Although SEL-400 series relays provide extensive programming facilities and
opportunity for comments, troubleshooting customized programs is sometimes
difficult. Aliases provide an opportunity to assign more meaningful names to the
generic variable names to improve the readability of the program. These aliases
can be used in settings and SEL
OGIC equations and are used in most relay reports.
Assign a valid seven-character alias name to any Relay Word bit or any Analog
Quantity. (Some SEL-400 series relays support aliasing additional types of data.)
Invalid alias names include the following keywords used by settings and
SEL
OGIC control equations:
➤ END
➤ INSERT
➤ DELETE
➤ LIST
➤ NA
➤ OFF
SEL
OGIC control equation operators (e.g., NOT, AND, OR, COS) cannot be used
as alias names. A quantity may only be assigned one alias. An alias cannot match
an existing relay word or analog quantity name.
Alias names are valid when the following are true:
➤ They consist of a maximum of seven characters.
➤ They are constructed using characters 0–9, uppercase A–Z, or the
underscore (_).
Ta b l e 1 2 . 32 Lo ca l B i t S E L OGIC
a
a
Settings in Table
Ta b le 1 2 .3 2
appear if the associated local bit is defined. If no local bits are
defined, the whole category is hidden.
Label Prompt Default Value
LB_SPmm Local Bit Supervision (SELOGIC Equation, NA) 1
LB_DPmm Local Bit Status Display (SEL
OGIC Equation, NA) LBmm
Table 12.33 SER Parameters
Label Prompt Default Value
SER_PP Five Events per SER Events page? (Y for 5, N for 3) N
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