2026

15 Glossary

TermDefinition
ACTIVE DEVICEany device capable of dynamically controlling and/or converting a source of electrical energy by the application of external electrical stimulus
ALLIANCE
a cooperative of up to 4 FIRST Robotics Competition teams
ALLIANCE
AREA
an approximately 360in wide by 134in deep (~9.14m by 3.4m) infinitely tall volume formed by, and including the
ALLIANCE
WALL,
OUTPOST
,
TOWER
WALL, the edge of the carpet, and
ALLIANCE
colored tape
ALLIANCE
CAPTAIN
The designated
STUDENT
representative from each
ALLIANCE
Lead
ALLIANCE
SHIFT
One of four
SHIFTS
(
SHIFT
1,
SHIFT
2,
SHIFT
3, and
SHIFT
4) during the
TELEOP
Period
ALLIANCE
WALL
A
FIELD
structure that separates
ROBOTS
from DRIVE TEAM members in the
ALLIANCE
AREA separates
ROBOTS
from DRIVE TEAM members in the
ALLIANCE
AREA
ALLIANCE
ZONE
A 158.6in deep by 317.7in long (~4.03m by 8.07m), infinitely tall volume formed by an
ALLIANCE
WALL,
TOWER
WALL, and guardrails
ARENA
includes all elements of the game infrastructure that are required to play REBUILTTM presented by Haas: the
FIELD
, SCORING ELEMENTS, queue area, team media area (when available), designated
TECHNICIAN
area, and all equipment needed for
FIELD
control
,
ROBOT
control
, and scorekeeping
ARENA
FAULT
an error in
ARENA
operation
AUTO
the first 20 seconds of the
MATCH
, and the
FMS
blocks any
DRIVER
control
, so
ROBOTS
operate with only their pre-programmed instructions
BACKUP POOLthe group of teams willing and able to join an
ALLIANCE
during the Playoff
MATCHES
BACKUP TEAMThe team whose
ROBOT
and DRIVE TEAM replaces another
ROBOT
and DRIVE TEAM on an
ALLIANCE
during the Playoff
MATCHES
BUMP
73.0in (1.854m) wide, 44.4in (1.128m) deep, and 6.513in (16.54cm) tall structures on either side of the
HUB
that
ROBOTS
drive over
BUMPER
a required assembly which attaches to the
ROBOT
frame.
BUMPERS
protect
ROBOTS
from damaging/being damaged by other
ROBOTS
and
FIELD
elements.
BUMPER
ZONE
a space between 2.5in (6.35cm) and 5.75in (14.61cm) from the floor.
BYPASSED
any
ROBOT
which is unable or ineligible to participate in that
MATCH
, as determined by the
FTA
,
LRI
, or Head
REFEREE
CENTER LINEa white line that spans the width of the
FIELD
that bisects the NEUTRAL ZONE in half
CHUTE
15.0° sloped tunnel that leads to the upper opening in the
CHUTE
DOOR
an HDPE arm on a pivot that can be rotated approximately 90 degrees by the HUMAN PLAYER to open or close the
CHUTE
COMPONENT
any part in its most basic configuration, which cannot be disassembled without damaging or destroying the part or altering its fundamental function
CONTINUOUS
describes durations that are more than approximately 10 seconds
CONTROL
an action by a
ROBOT
in which a SCORING ELEMENT is fully supported by or stuck in, on, or under the
ROBOT
CORRAL
8.13in (20.6cm) tall polycarbonate panels that create a 35.8in (90.8cm) wide, 37.6in (95.5cm) deep area on the floor in which
FUEL
can be stored
COTS
a standard (i.e. not custom order) part commonly available from a
VENDOR
for all teams for purchase
CUSTOM CIRCUITAny active electrical item that is not an actuator (specified in R501) or core
control
system item (specified in R710)
DEPOT
a 42.0in (1.07m) wide, 27.0in (68.6cm) deep structure located along the
ALLIANCE
WALL
DISABLED
the state in which a
ROBOT
is commanded to deactivate all outputs, rendering the
ROBOT
inoperable for the remainder of the
MATCH
DISQUALIFIED
the state of a team in which they receive 0
MATCH
points and 0 Ranking Points in a Qualification
MATCH
or causes their
ALLIANCE
to receive 0
MATCH
points in a Playoff
MATCH
DRIVE COACHa guide or advisor
DRIVE TEAMa set of up to 5 people from the same FIRST Robotics Competition team responsible for team performance for a specific
MATCH
DRIVER
an operator and controller of the
ROBOT
DRIVER
STATION
1 of 3 assemblies within an
ALLIANCE
WALL behind which a DRIVE TEAM operates their
ROBOT
END GAME
SHIFT
during the
TELEOP
Period where where both
HUBS
return to active.
ENERGIZED
RP
BONUS
RP
earned when the amount of
FUEL
scored in the
HUB
is at or above threshold
FABRICATED ITEMany
COMPONENT
or
MECHANISM
that has been altered, built, cast, constructed, concocted, created, cut, heat treated, machined, manufactured, modified, painted, produced, surface coated, or conjured partially or completely into the final form in which it will be used on the
ROBOT
FIELD
an approximately 317.7in (~8.07m) by 651.2in (~16.54m) carpeted area bounded by inward facing surfaces of the
ALLIANCE
WALLS,
OUTPOSTS
,
TOWER
WALLS, and guardrails
FIELD
STAFF
the collective group of people working on or near the
FIELD
responsible for making sure the
MATCHES
are cycled through efficiently, fairly, safely, and with a spirit of cooperation, Gracious Professionalism, and generosity of spirit
FMS
the
FIELD
Management System
FTA
FIRST Technical Advisor
FUEL
a 5.91in (15.0cm) diameter, high density foam ball
HIGH
RUNG
A
RUNG
63.0in (1.6m) from the floor
HUB
one of two 47in by 47in (~1.19m by 1.19m) rectangular prism structures with an extended opening at the top surface
HUMAN PLAYERa SCORING ELEMENT manager
HUMAN STARTING LINEa white line spanning the
ALLIANCE
AREA up to the
OUTPOST
AREA a white line spanning the
ALLIANCE
AREA up to the
OUTPOST
AREA
INSPECTOR
a person determined by FIRST to accurately and efficiently assess the legality of a given part of a
ROBOT
KOP
the Kit of Parts
LINEUP
the 3 teams participating in the
MATCH
and their selected
DRIVER
STATIONS
LEVEL
Criteria required to qualify for
TOWER
points
LOW
RUNG
A
RUNG
located 27.0in (68.58cm) from the floor
LRI
the Lead
ROBOT
INSPECTOR
MAJOR FOULa credit of 15 points towards the opponent’s
MATCH
point total
MAJOR
MECHANISM
a group of
COMPONENTS
and/or
MECHANISMS
assembled together to address at least 1 game challenge:
ROBOT
movement, SCORING ELEMENT manipulation,
FIELD
element manipulation, or performance of a scorable task without the assistance of another
ROBOT
.
MATCH
the 2-minute and 40-second in which a
ROBOT
is enabled to play REBUILT
MECHANISM
an assembly of
COMPONENTS
that provide specific functionality on the
ROBOT
. A
MECHANISM
can be disassembled (and then reassembled) into individual
COMPONENTS
without damage to the parts.
MID
RUNG
A
RUNG
located 45.0in (114.3cm) from the floor
MINOR FOULa credit of 5 points towards the opponent’s
MATCH
point total
MOMENTARY
describes durations that are fewer than approximately 3 seconds
MXP
myRIO Expansion port, the expansion port on the roboRIO
NEUTRAL ZONEA 283in deep by 317.7in long (7.19m by 8.07m), infinitely tall volume formed by the
BUMPS
,
TRENCHES
,
HUBS
, and guardrails
OPERATOR CONSOLEthe set of
COMPONENTS
and
MECHANISMS
used by the
DRIVERS
and/or HUMAN PLAYERS to relay commands to the
ROBOT
OUTPOST
an assembly through which HUMAN PLAYERS feed
FUEL
into the
FIELD
and
ROBOTS
can deliver
FUEL
to their HUMAN PLAYERS
OUTPOST
AREA
a 71.0in wide by 134in deep (1.8m by 3.4m) infinitely tall volume bounded by the
OUTPOST
, edge of carpet, and
ALLIANCE
and white colored tape
PASSIVE CONDUCTORany device or circuit whose capability is limited to the conduction and/or static regulation of the electrical energy applied to it (e.g. wire, splices, connectors, printed wiring board, etc.)
PCM
Pneumatic
Control
Module
PDH
Power Distribution
Hub
PDP
Power Distribution Panel
PH
Pneumatic
Hub
PIN
an action by a
ROBOT
that is preventing the movement of an opponent
ROBOT
by contact, either direct or transitive (such as against a
FIELD
element)
RED CARDissued by the Head
REFEREE
for egregious
ROBOT
or team member behavior or rule violations which results in a team being
DISQUALIFIED
for the
MATCH
.
REFEREE
an official who is certified by FIRST to enforce the rules of REBUILT
REPEATED
describes actions that happen more than once within a
MATCH
ROBOT
an electromechanical assembly built by the FIRST Robotics Competition team to play the current season’s game and includes all the basic systems required to be an active participant in the game –power, communications,
control
,
BUMPERS
, and movement about the
FIELD
ROBOT
PERIMETER
the part of a
ROBOT
contained within the
BUMPER
ZONE and established while in the
ROBOT
’S STARTING CONFIGURATION, that is comprised of fixed, non-articulated structural elements of the
ROBOT
ROBOT
STARTING LINE
an
ALLIANCE
colored line that spans the width of the
FIELD
at the edge of an
ALLIANCE
’S BASE in front of two BARRIERS and an
ALLIANCE
HUB
RP
Ranking Points
RPM
Radio Power Module
RS
Ranking Score
RSL
ROBOT
Signal Light
RUNG
One of the 1-1/4in Sch 40 (1.66in (4.216cm) OD) pipeis centered between the
UPRIGHT
and extend 5.875in (14.92cm) from the outer face of the
UPRIGHT
on either sides located on the
TOWER
SCORING ELEMENTa
FUEL
SHIFT
see
ALLIANCE
SHIFT
, TRANSITION
SHIFT
SIGNAL
LEVEL
a term used to characterize circuits which draw ≤1A
continuous
and have a source incapable of delivering >1A, including but not limited to roboRIO non-PWM outputs, CAN signals,
PCM
/
PH
Solenoid outputs,
VRM
500mA outputs,
RPM
outputs, and Arduino outputs
STARTING CONFIGURATIONthe physical configuration in which a
ROBOT
starts a
MATCH
STUDENT
a person who has not completed high-school, secondary school, or the comparable
level
as of September 1 prior to Kickoff
SUPERCHARGED
RP
BONUS
RP
earned when the amount of
FUEL
scored in the
HUB
is at or above threshold
SURROGATE
a team randomly assigned by the
FMS
to play an extra Qualification
MATCH
TECHNICIAN
a resource for
ROBOT
troubleshooting, setup, and removal from the
FIELD
TELEOP
the Teleoperated Period
TOWER
a 49.25in (1.251m) wide, 45.0in (1.143m) deep, and 78.25in (1.988m) tall structure made up of the
TOWER
WALL,
TOWER
BASE,
UPRIGHTS
,
RUNGS
and supporting structures
TOWER
BASE
a 39.0in (99.06cm) wide by 45.18in (1.148m) deep plate that sits on the floor and extends from the
TOWER
WALL
TOWER
WALL
Part of the
TOWER
integrated into each
ALLIANCE
WALL
TRANSITION
SHIFT
Segment of
TELEOP
prior to the
ALLIANCE
SHIFTS
TRAVERSAL
RP
BONUS
RP
earned when the amount of
TOWER
points scored during the
MATCH
is at or above threshold
TRENCH
are a 65.65in (1.668m) wide, 47.0in (1.194m) deep, and 40.25in (1.022m) tall structure that
ROBOTS
drive underneath
UPRIGHTS
72.1in (1.831m) tall, 1.5in (3.81cm) thick, 3.5in (8.89cm) deep sheet metal box frames that extend vertically up from the
TOWER
BASE
VENDOR
a legitimate business source for
COTS
items that satisfies criteria defined in Section 8
ROBOT
Construction Rules
VERBAL WARNINGa warning issued by event staff or the Head
REFEREE
.
VRM
Voltage Regulator Module
YELLOW CARDissued by the Head
REFEREE
for egregious
ROBOT
or team member behavior or rule violations

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