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Resource Desk

Operate the Real Arm · xArm 850 · Step 5 of 9

Monitor the Arm

While the arm works, you watch two things: what Studio says the arm is doing, and what the arm and the card are really doing. When the two disagree, or you are unsure, stop the arm.

The Status Panel

Studio's status panel: State Stop, Mode Position, Payload 0.61 Kg, Mounting Floor, the tool point's X, Y and Z in mm, its roll, pitch and yaw, and the six joint angles.
The status panel on the xArm 850 with the arm stopped1. Image: Derek Stringfellow

Studio shows the arm's status beside its picture of the arm2:

ItemWhat it tells youNormal for the approved task
StateWhether the arm is moving, ready, paused or stopped3456Moving during a move; Stop when it has stopped or after an error61
ModeThe control mode. Position is the default after start-up72Position; Manual only while you guide the arm by hand81
PayloadThe tool's mass setting, in kg9The approved value. On 2026-10-22 it read 0.61 kg1
MountingHow the controller thinks the arm is installed10The approved value. On 2026-10-22 it read Floor1
X, Y, Z, roll, pitch, yawWhere the tool point is, in the base coordinate system211Changing while the arm moves, still when it stops23
J1 to J6Each joint's angle2Inside each joint's limits: a joint past its limit raises error code C2312
  • A change of a critical setting (mode, payload, TCP offset or collision sensitivity) puts the arm in a state where it accepts no commands until it is set to ready again13.

Inputs and Outputs

Studio's Externals, Controller IO, IO State page: digital inputs CI0 to CI7 and DI0 to DI7 with their values, digital outputs CO0 to CO7 and DO0 to DO7 as switches, and the analog inputs and outputs.
The control box's inputs and outputs on the xArm 850, with the arm stopped14. Image: Derek Stringfellow
  • Settings > Externals > Controller IO > IO State shows the control box's inputs and outputs14. The End Effector IO page shows the tool's inputs and outputs, updated five times a second15.
  • With the arm stopped on 2026-10-22, every control box input read 1 and every output was off14.
  • Look, do not click: clicking an output's button switches that output14.

What to Watch at the Arm

  • The card stays flat on the suction cup while it is carried1617.
  • Nobody enters the working area, and nothing is put in it18.
  • An arm that looks stopped may be about to move. Treat it as moving19.
  • Anything you did not expect, such as a move off the planned path or an error message: stop the arm and ask lab staff for help20.

When to Stop

  • Click Studio's STOP for anything that is not normal. It stops the arm at once21.
  • Press the emergency stop if anyone could be hurt2223.
  • Then follow Abnormal conditions24.

Printed from https://www.anotherplace.com/learn/en/xarm-850/operate/monitor. Every line cites its source on that page.

Provenance

References · 24

Each number in the text points here. Every entry states its confidence class in words and keeps its evidence one click away. How to read the labels.

Key to the badges
Confidence: Verified
A manufacturer or IntelliMake document says so, the project owner stated it as the design, or it was observed directly. It does not mean anyone measured it at S2.
Confidence: Inferred
Reasoned from Verified facts. The reasoning is printed with the record.
Confidence: Assumed
Plausible but untested. The record says how it would be checked.
Kind: Gap
Not known. No figure or answer is given in its place.
Kind: Contradiction
Sources disagree. Both sides are shown, and the site does not pick one silently.
Kind: Recommendation
Project advice drawn from the records it cites. Not a fact about the machine and not a confidence class, so the filter never hides it.
Awaiting cell access
Awaiting cell access: could be confirmed or corrected once the physical S2 cell can be observed.
This project's simulation and agent design, not the physical cell
This project's simulation and agent design, not the physical cell.

  1. Confidence: VerifiedAwaiting cell accessops-211

    The record says

    On 2026-10-22, on firmware 2.8.2, UFACTORY Studio's status panel for the xArm 850 read State Stop, Mode Position, Payload 0.61 kg and Mounting Floor, with the tool point's X, Y, Z, roll, pitch and yaw and the six joint angles beside them.

    Awaiting cell access: this could be confirmed or corrected once the physical S2 cell can be observed.

    Reasoning: Verified as a direct reading of the xArm 850's controller on 2026-10-22, on screens connected to the real arm. The pose figures describe where the arm stood when each screenshot was taken, not a position of the cell.

    Evidence · 4 citations

    State, Mode | Stop, Position

    UFACTORY Studio screens and a control-box photo for the xArm 850, 2026-10-22: what they show (OBSERVATIONS.md) · Derek Stringfellow · Device Info after the update, table, 'State, Mode' row

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-22

    Project copy; not published on this site.

    Payload, Mounting | 0.61 Kg, Floor

    UFACTORY Studio screens and a control-box photo for the xArm 850, 2026-10-22: what they show (OBSERVATIONS.md) · Derek Stringfellow · Device Info after the update, table, 'Payload, Mounting' row

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-22

    Project copy; not published on this site.

    Tool point X, Y, Z | 238.4, 7.4, 137.5 mm

    UFACTORY Studio screens and a control-box photo for the xArm 850, 2026-10-22: what they show (OBSERVATIONS.md) · Derek Stringfellow · Status panel table (2.6.0), the rows listed

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-22

    Project copy; not published on this site.

    the pose is where the arm stood when the screenshot was taken

    UFACTORY Studio screens and a control-box photo for the xArm 850, 2026-10-22: what they show (OBSERVATIONS.md) · Derek Stringfellow · 'Not a measurement of the cell'

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-22

    Project copy; not published on this site.

  2. Confidence: Verifiedops-203

    The record says

    UFACTORY Studio's Product Information shows the arm's model, IP address, firmware and software versions, state, mode, payload and mounting, with the current TCP coordinates and joint angles. The defaults are position mode, a payload of 0 kg and floor mounting.

    Evidence · 6 citations

    This page display the product information, such as: Model, IP, Firmware Version, Software Version, State, Mode, Payload, Mounting, etc.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.3 Product Information (read 2026-10-23, publisher's commit cf19147, unchanged since 2026-10-13; the page names no Studio or firmware version)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Mode:Robotic arm mode, default: position mode.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.3, list (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Payload:Robotic arm payload, default: 0kg.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.3, list (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Mounting:Robotic arm mounting way, default: Floor.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.3, list (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    TCP Coordinate:Current TCP coordinates.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.3, list (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Joint Angle:Current joint angle.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.3, list (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  3. Confidence: Verifiediface-110

    The record says

    Reported state 1 means the robot is in motion.

    Evidence · 1 citation

    State 1 | Feedback. The robot is in motion.

    UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY · 10.2 State 1

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  4. Confidence: Verifiediface-111

    The record says

    The Studio manual defines reported state 2 as ready to receive and execute commands.

    Evidence · 1 citation

    State 2 | Feedback. The robot is ready to receive and execute commands.

    UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY · 10.2 State 2

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  5. Confidence: Verifiediface-112

    The record says

    Setting state 3 pauses a running motion, and setting state 0 resumes it; state 3 is also reported while paused.

    Evidence · 1 citation

    State 3 | set: set the robot to a PAUSED state when executing motion commands, the motion can be resumed by setting state 0.

    UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY · 10.2 State 3

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  6. Confidence: Verifiediface-113

    The record says

    Setting state 4 stops the arm at once; it then accepts no new commands until the state is set back to standby (0). The controller also enters state 4 on its own when any error occurs.

    Evidence · 2 citations

    State 4 | set: set the robot to STOP state, it will terminate any execution immediately and will not receive or execute any new command until the state is set back to STANDBY.

    UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY · 10.2 State 4

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    State 4 | will automatically switch to this state when any error occurs.

    UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY · 10.2 State 4

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  7. Confidence: Verifiediface-096

    The record says

    Mode 0 is position control mode, and the controller enters it by default after start-up.

    Evidence · 2 citations

    Mode 0: Position Control Mode

    UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY · 10.1 Mode 0

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    The control box enters this mode by default after startup.

    UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY · 10.1 Mode 0

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  8. Confidence: Verifiediface-101

    The record says

    Mode 2 is manual (joint teaching) mode: the arm compensates for gravity so the links can be moved by hand, and it should be switched back to mode 0 when teaching is done.

    Evidence · 1 citation

    Quote not shown (over 40 words). See the source at: 10.1 Mode 2: Manual Mode.

    UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY · 10.1 Mode 2: Manual Mode

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  9. Confidence: Verifiedops-041

    The record says

    The TCP payload is the mass of end effector plus workpiece in kg, with its center of gravity in mm in the default flange frame; with no load, both must be set to 0.

    Evidence · 2 citations

    The load weight refers to the actual mass (end-effector + object) in Kg

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.1.2 TCP, TCP Payload

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    If there is virtually no load at the end, both TCP payload and centre of gravity must be set to 0.

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.1.2 TCP, TCP Payload

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  10. Confidence: Verifiedops-045

    The record says

    Set the mounting direction to match how the arm is really installed; a wrong setting makes the arm misjudge gravity, causing frequent false collision stops and uncontrolled motion in manual mode.

    Evidence · 1 citation

    Quote not shown (over 40 words). See the source at: 7.1.3 Mounting.

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.1.3 Mounting

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  11. Confidence: Verifiedops-202

    The record says

    In UFACTORY Studio's Live Control, Linear Motion moves the tool in a straight line in the base or the TCP coordinate system, with X, Y and Z in mm and roll, pitch and yaw in degrees; Joint Motion turns one joint at a time, and the tool's path is then not a straight line. UFACTORY says to check the TCP offset before recording a Cartesian position.

    Evidence · 4 citations

    Users can control the motion of the robotic arm based on the base coordinate system and TCP coordinate system. The trajectory of tool center point in the Cartesian space is a straight line.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.4 Position & Joint Control, 'Linear Motion' (read 2026-10-23, publisher's commit cf19147, unchanged since 2026-10-13; the page names no Studio or firmware version)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    X, Y, and Z control the position of TCP in base or tool coordinate system, in the unit of mm. While Roll/Pitch/Yaw controls the TCP orientation in the unit of degree.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.4, 'Linear Motion', first bullet (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    The joint motion reaches the target point with the fastest path, the end trajectory is not a straight line

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.4, 'Joint Motion' (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    DANGER: You must check the TCP offset before recording the Cartesian position.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.4, TCP coordinate box (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  12. Confidence: Verifiedsafety-147

    The record says

    As UFACTORY's Studio manual read on 2026-10-13, controller error C23 reports a joint angle beyond its limit, and C24 reports a joint's speed beyond its limit.

    Evidence · 2 citations

    C23 | Joints Angle Exceed Limit

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1 table, C23 (read 2026-10-13, publisher's commit e28e232; the page names no Studio or firmware version)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    C24 | Joints Speed Exceeds Limit

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1 table, C24 (read 2026-10-13, publisher's commit e28e232)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  13. Confidence: Verifiediface-114

    The record says

    State 5 (MODE_CHANGED) is entered on its own after critical settings change (mode, payload, TCP offset, collision sensitivity, etc.); the arm accepts no commands until state 0 is set.

    Evidence · 1 citation

    State 5 | MODE_CHANGED state, will automatically switch to this state if some critical configurations (mode, payload, TCP offset, collision sensitivity, etc) have been changed, and cannot receive and execute any command until set state 0.

    UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY · 10.2 State 5

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  14. Confidence: VerifiedAwaiting cell accessiface-202

    The record says

    UFACTORY Studio's IO State page shows the control box's inputs and outputs and switches an output when its button is clicked; the digital inputs CI0 to CI7 and DI0 to DI7 read high by default, the outputs CO0 to CO7 and DO0 to DO7 low. On the xArm 850 with the arm stopped (2026-10-22) every input read 1 and every output was off.

    Awaiting cell access: this could be confirmed or corrected once the physical S2 cell can be observed.

    Reasoning: The page's meaning is UFACTORY's (Verified, the manual); the readings are a direct reading of the xArm 850's IO State page on 2026-10-22 with the arm stopped. All inputs reading 1 says nothing on its own about wiring.

    Evidence · 4 citations

    The IO input status and IO output status of the control box can be monitored, and the IO output status of the control box can be controlled by clicking the button.

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.2.2 Controller IO, 'IO State' (read 2026-10-23, publisher's commit cf19147, unchanged since 2026-10-13; the page names no Studio or firmware version)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Digital Input: CI0-CI7, DI0-DI7, High level by default.

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.2.2, 'IO State' (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Digital Output: CO0-CO7, DO0-DO7, Low level by default.

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.2.2, 'IO State' (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    inputs CI0–CI7 and DI0–DI7 all read 1; outputs CO0–CO7 and DO0–DO7 all off

    UFACTORY Studio screens and a control-box photo for the xArm 850, 2026-10-22: what they show (OBSERVATIONS.md) · Derek Stringfellow · IO State

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-22

    Project copy; not published on this site.

  15. Confidence: Verifiediface-092

    The record says

    UFACTORY Studio's End Effector IO page refreshes at 5 Hz and lists tool inputs TI0-TI4, tool outputs TO0-TO4 and analog inputs TAI0-TAI1 (0-3.3 V).

    Evidence · 4 citations

    Update Frequency: 5HZ.

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.2.1 End Effector IO

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Digital Input: TI0, TI1, TI2, TI3, TI4, low level by default

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.2.1 End Effector IO

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Digital Output: TO0, TO1, TO2, TO3, TO4.

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.2.1 End Effector IO

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Robot Analog Input: TAI0, TAI1, 0V by default, [0-3.3V].

    UFACTORY Studio User Manual (online), 7. Settings · UFACTORY · 7.2.1 End Effector IO

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  16. Confidence: Verifiedops-204

    The record says

    UFACTORY Studio's Blockly has vacuum gripper blocks: one reads the vacuum gripper's state (0 picked, 1 released), one waits until an object is picked or released or a timeout passes, and one switches the vacuum gripper on or off. With object detection set true, the program stops if the object is not sucked.

    Evidence · 5 citations

    Get Vacuum gripper state: 0/1. 0: Picked 1: Release

    UFACTORY Studio User Manual (online), 5. Blockly · UFACTORY · 5.3.4 Tool, 'Vacuum Gripper' (read 2026-10-23, publisher's commit cf19147, unchanged since 2026-10-13; the page names no Studio or firmware version)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    object is (picked/release): Detect whether the vacuum gripper has picked (released) the object

    UFACTORY Studio User Manual (online), 8. Blockly Typical Examples · UFACTORY · 8.2 xArm Vacuum Gripper, 'Block' (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-23

    Open the source

    If the timeout period is exceeded, the vacuum gripper has not yet picked (released) the object, it will also jump out of the command and execute the next command.

    UFACTORY Studio User Manual (online), 8. Blockly Typical Examples · UFACTORY · 8.2, 'Block' (read 2026-10-23)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-23

    Open the source

    set xarm vacuum gripper (ON/OFF) object detection (true/false) [set]: Set the vacuum gripper to be on and off.

    UFACTORY Studio User Manual (online), 8. Blockly Typical Examples · UFACTORY · 8.2, 'Block' (read 2026-10-23)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-23

    Open the source

    object detection = true: detect whether the object is sucked, if not, it will jump out of the entire program.

    UFACTORY Studio User Manual (online), 8. Blockly Typical Examples · UFACTORY · 8.2, 'Block' (read 2026-10-23)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-23

    Open the source

  17. Confidence: Verifiedsafety-012

    The record says

    UFACTORY warns that items can drop from the 850 if power is lost accidentally or if the gripper holds them unstably.

    Evidence · 1 citation

    Be careful about dropping items that can be caused by accidental power off or unstable clamping of the robotic arm.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.4 Personnel Safety, CAUTION

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  18. Confidence: Verifiedsafety-009

    The record says

    UFACTORY says no people or other equipment should be in the 850's working area while the arm is operating.

    Evidence · 1 citation

    When the robotic arm is in operation, make sure no people or other equipment are in the working area.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.3, DANGER list

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  19. Confidence: Verifiedsafety-010

    The record says

    An 850 that looks stopped may be waiting for a signal and about to move; UFACTORY says to treat it as moving.

    Evidence · 1 citation

    Quote not shown (over 40 words). See the source at: 1.4 Personnel Safety, CAUTION.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.4 Personnel Safety, CAUTION

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  20. Confidence: Verifiedint-603

    The record says

    IntelliMake's laboratory rules for a collaborative robot: verify the approved speed, payload, workspace and safety configuration before enabling motion; do not bypass safety devices or modify protected settings; and stop the machine and ask for help whenever its condition is uncertain.

    Evidence · 3 citations

    For collaborative robots, verify the approved speed, payload, workspace, and safety configuration before enabling motion.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements', collaborative robots

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

    Do not bypass safety devices or modify protected settings.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements'

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

    Stop the machine and request assistance whenever its condition is uncertain.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements'

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

  21. Confidence: Verifiedops-057

    The record says

    The Studio STOP button stops the arm immediately and clears all cached commands; it is a software stop and the power stays on.

    Evidence · 1 citation

    **STOP:** The robotic arm will stop immediately and clear all cache commands. It's a **software stop**, the power is still on.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.5 Enable & STOP button

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  22. Confidence: VerifiedAwaiting cell accesssafety-204

    The record says

    The xArm 850's emergency stop is the red button on its control box, and nothing else is wired into the box's emergency-stop input (as reported from the lab on 2026-10-22). The cell's stations run from a distributed power system that can cut all power, rather than a shared emergency-stop circuit.

    Awaiting cell access: this could be confirmed or corrected once the physical S2 cell can be observed.

    Reasoning: Verified for what the dated report from the lab says (S230, S232), as of 2026-10-22, with the photo of the control box. It says where the button is and what is wired; it is not a test that the stop works, which stays unconfirmed until a test is on record. No inspection of the wiring is recorded.

    Evidence · 3 citations

    The estop is on the control box

    Owner statements from 2026-09-24 onward (verbatim; S40 and later) · Derek Stringfellow · Statement S230 (2026-10-22)

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-04

    Project copy; not published on this site.

    Currently nothing else is wired into the estop input, and the stations run from a distributed power management system, so not a shared circuit per se, but all pwoer could be cut off if needed

    Owner statements from 2026-09-24 onward (verbatim; S40 and later) · Derek Stringfellow · Statement S232 (2026-10-22)

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-04

    Project copy; not published on this site.

    a red mushroom emergency-stop button on a yellow ring marked "STOP" on the top face

    UFACTORY Studio screens and a control-box photo for the xArm 850, 2026-10-22: what they show (OBSERVATIONS.md) · Derek Stringfellow · Control-box photo

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-22

    Project copy; not published on this site.

  23. Confidence: Verifiedops-059

    The record says

    Pressing the control box emergency stop makes the controller decelerate the arm in software, clears all cached commands, and removes power from the arm within 300 ms; the arm will slightly brake and fall.

    Evidence · 2 citations

    Quote not shown (over 40 words). See the source at: 2.1.2 Emergency Stop Button.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.1.2 Emergency Stop Button

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    the posture of the robotic arm will slightly brake and fall.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.1.2 Emergency Stop Button

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  24. Confidence: Verifiedops-071

    The record says

    When an error occurs, the arm stops at once and discards cached commands; the error must be cleared manually and the motion re-planned before normal operation continues.

    Evidence · 1 citation

    After the above error occurs, the robotic arm will stop working immediately and discard the Control Box cache command. Users need to clear these errors manually to allow normal operation.

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

Image Credits

  • Studio's status panel: State Stop, Mode Position, Payload 0.61 Kg, Mounting Floor, the tool point's X, Y and Z in mm, its roll, pitch and yaw, and the six joint angles. © Derek Stringfellow (screenshot); the interface shown is UFACTORY Studio, UFACTORY's software. Source. A screenshot of the manufacturer's software, taken for this course. Your version of the software may look different; the manufacturer's current manual is the reference.
  • Studio's Externals, Controller IO, IO State page: digital inputs CI0 to CI7 and DI0 to DI7 with their values, digital outputs CO0 to CO7 and DO0 to DO7 as switches, and the analog inputs and outputs. © Derek Stringfellow (screenshot); the interface shown is UFACTORY Studio, UFACTORY's software. Source. A screenshot of the manufacturer's software, taken for this course. Your version of the software may look different; the manufacturer's current manual is the reference.

Sources for This Page

  • 'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course (IntelliMake)
    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23 · cited by 1 record here · Project copy; not published on this site.
  • Owner statements from 2026-09-24 onward (verbatim; S40 and later) · Derek Stringfellow (project owner)
    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-04 · cited by 1 record here · Project copy; not published on this site.
  • UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21 · cited by 3 records here · Open the source
  • UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21 · cited by 1 record here · Open the source
  • UFACTORY Studio screens and a control-box photo for the xArm 850, 2026-10-22: what they show (OBSERVATIONS.md) · Derek Stringfellow (project owner)
    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-22 · cited by 3 records here · Project copy; not published on this site.
  • UFACTORY Studio User Manual (online), 10. Robotic Arm Motion Mode and State · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21 · cited by 7 records here · Open the source
  • UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13 · cited by 2 records here · Open the source
  • UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13 · cited by 3 records here · Open the source
  • UFACTORY Studio User Manual (online), 5. Blockly · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13 · cited by 1 record here · Open the source
  • UFACTORY Studio User Manual (online), 7. Settings · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13 · cited by 4 records here · Open the source
  • UFACTORY Studio User Manual (online), 8. Blockly Typical Examples · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-23 · cited by 1 record here · Open the source

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