Set Actual Value - Siemens sinumerik 840d Programming Manual

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10.4.20 Set actual value

When PRESETON (axis, value) is executed, the

current axis position is not changed but a new value

is assigned to it.

PRESETON can be executed from within a

synchronized action in the following cases:

• Modulo rotary axes that have been started from

the part program

• All command axes that have been started from

the synchronized action

Restriction:

PRESETON is not possible for axes that participate

in a transformation.

Programming example

WHEN $AA_IM[a] >= 89.5 DO PRESETON(a4,10.5)

One and the same axis can by moved from the part

program and from a synchronized action, only at

different times. For this reason, delays can occur in the

programming of an axis from the part program if the

same axis has been program in a synchronized action

If the same axis is used alternately, transfer between

the two axis movements is coordinated. Part

program execution must be interrupted for that.

SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition

;Offset control zero of axis a by 10.5 length units (inch or mm) in the positive axis direction.

10.4 Actions within synchronized actions

Motion-Synchronous Action

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