MC-Basic:axis.MASTERSOURCE

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Defines the source of an axis when it is in a slave mode (Gear or Cam). The slave axis follows the command generated by that source.

Short form

<axis>.MSour

Syntax

<axis>.MasterSource = <source>

?<axis>.MasterSource

Availability

Since Version 3.6.20

Range

  • Position command of any axis, specified as <axis>.POSITIONCOMMAND
  • Position feedback from any axis, specified as <axis>.POSITIONFEEDBACK
  • External position (PEXT) from any axis (CDHD drive), specified as <axis>.POSITIONEXTERNAL
  • System clock at 1 Motion-Bus cycle resolution  as TIMEPULSE
  • Torque command value (affects the slave's TCMD and not PCMD) <axis>.TORQUECOMMAND (TCMD)
  • Torque feedback value (affects the slave's TCMD and not PCMD) <axis>.TORQUEFEEDBACK (TFB)
  • Torque additive command value (affects the slave's TCMD and not PCMD) <axis>.TORQUEADDITIVECOMMAND (TADDCMD)
  • Torque drive command value (affects the slave's TCMD and not PCMD) <axis>.TORQUEDRIVECOMMAND (TDCMD)
  • Reset (deletes the previous setting) NONE


NOTE-Info.svgNOTE
Firmware versions prior to 4.5.0).

Ensure an ascending order of drive addresses that are connected into a master slave chain. The master axis must always have an address that is lower than the slave (<master>.dadd < <slave>.dadd), otherwise a position delay of at least one motion sample will be generated. The referenced master axis must have a lower elementId than the slave in order to avoid additional delays.

NOTE-Info.svgNOTE
Version 4.5.21 and higher.
For chained master/slave axes: Before changing any axis MasterSource setting, the previous one must be reset by setting MasterSource to NONE.

Units

None

Default

NONE.NONE

Scope

Configuration, Task or Terminal

Limitations

  • Cannot be changed while axis is slaved.
  • To set the value within a task, the axis must be attached to that task (using the ATTACH command).


NOTE-Info.svgNOTE
This query is a non-defined expression so it cannot be used as a string. To get the master name as a string use axis.MasterSource.Name query.

Examples

Xaxis.Mastersource=Yaxis.pfb

See Also