Levitation Control Extended

This command can be used to levitate or land an XBot with its landed behavior controlled.

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Fieldbus Interface

PMC_LevitationCtrlEx 

Inputs

Name

Data Type

Description

Execute

BOOL

Execution of the function block begins on a rising edge of this input.

cmdLB

UINT

Any 2 byte Command Label, user defined.

XbotID

UINT

ID of the XBot. Real XBot IDs [1,78].

Level

USINT

0: Land; 1: Levitate

Speed

USINT

0 = (1.6s), 1 = (0.8s), 2 = (0.4s), 3 = (0.2s), 4 = (0.1s), 5 = (0.05s); All times are approximate

StereotypeID

USINT

Stereotype the XBot is switched to once levitating/landing is done

LiftForce

REAL

Landing only: upward Z force supporting the XBot during first landing (in N), 0 for none

PressForce

REAL

Landing only: downward Z force seating the XBot during final landing (in N), 0 for none

SettleDelay

REAL

Landing only: delay letting the XBot come to rest before its load model changes (in seconds)

TimeoutSec

REAL

Budget for the procedure to reach the state it aims for (in seconds)

PM_Controller

PMControllerType

Data structure that specifies which PMC to connect to. There should be only 1 instance of this variable for each connected PMC.
Outputs

Name

Data Type

Description

Ack

BOOL

Command has been accepted by the PMC when Ack = TRUE.

Done

BOOL

Execution successful. Function block is finished. (Note: Done will not become TRUE if Execute is already FALSE) 

Busy

BOOL

Function block is active and must continue to be called.

Aborted

BOOL

Command aborted by another command.

Error

BOOL

If there is an error in processing the command, then Error = TRUE, otherwise, FALSE.

ErrorID

UINT

0x0: All OK. Otherwise, please see Fieldbus Reply Codes.

ProcedureState

USINT

State at acceptance:

  • 0: Not requested

  • 1: Accepted

  • 2: In progress

  • 3: Finished

  • 4: Failed

Conditions

Operating Conditions

Preconditions

XBot is Idle (Levitated) or Landed

Postconditions

XBot is either Idle (Levitated) or Landed, as specified

Description

This command can be used to levitate or land an XBot with its landed behavior controlled. It executes a two-step landing:

  1. The XBot is first set down while optionally supported by the lift force

  2. After the settle delay and the landed stereotype is applied, the XBot is seated by the optional press force

When levitating, the XBot is switched back to its flight stereotype before it lifts off.

Changelog

PMC v117.27.14 (Fieldbus v6.03.063.00) - Command released in fieldbus libraries