Siemens SINUMERIK 840D sl Programming Manual page 311

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Example of circumnavigation of the pole with PTP and TRANSMIT

N001 G0 X30 Z0 F10000 T1 D1 G90

N003 TRANSMIT

N020 G0 X30 Y20

N030 X-30 Y-20

N120 G1 X30 Y20

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Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0

Activates the first declared TRANSMIT function

(see section "Milling on turned parts: TRANSMIT")

Point to Point G0 (point-to-point motion automatic at each G0 block and

then set CP again)

Because STAT and TU are modal, the most recently programmed value

always acts.

point to point (point to point motion)

For TRANSMIT, PTP means that in the Cartesian spirals will be retracted

to Archimedean spirals either about the pole or from the pole. The

resulting tool motions run significantly different as for CP and are

represented in the associated programming examples.

Resolving the non-uniqueness with regard to the pole.

TU is not relevant for PTP with TRANSMIT

Transformations

7.9 Cartesian PTP travel

;Initial setting absolute

;TRANSMIT transformation

;Automatic for each G0 block

;PTP and then CP again