Scanlab RTC6 PCIe Board - Jump Commands; Mark Commands; Arc Commands; Polylines

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RTC6 boards

Doc. Rev. 1.0.21 en-US

7 Basic Functions for Scan Head Control and Laser Control

137

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Jump Commands

A Jump Command (jump_abs or jump_rel

(1)

) causes

the mirrors to move from the start point to the end

point of a vector.

The Signals for “Laser Active” Operation are

automatically switched off at the beginning of the

vector and remain switched off during the jump, see

also Chapter 7.2.1 ”Laser Delays”, page 145 and

Chapter 7.2.2 ”Scanner Delays”, page 147. The

jump speed is defined by set_jump_speed and

set_jump_speed_ctrl.

If the laser system does not allow fast switching, the

jump speed must be set high enough to prevent a

visible marking effect on the workpiece. See also the

commands home_position and

home_position_xyz.

Mark Commands

Upon execution of a [*]mark[*] Command

(mark_abs or mark_rel

(1)

), the laser focus is moved

linearly from the start point to the end point of the

vector. The RTC6 PCIe Board automatically turns on

the Signals for “Laser Active” Operation at the

beginning of a [*]mark[*] Command, see also Section

”Polylines”, page 137.

The mark speed is defined by set_mark_speed and

set_mark_speed_ctrl. It can be changed anywhere in

a list by set_mark_speed or by

set_mark_speed_ctrl, if no list is currently being

processed.

Arc Commands

The Arc Commands arc_abs and arc_rel can be used

for marking circular arcs

(2)

. The parameters to be

specified are coordinates of the arc center and the arc

angle. The circular arc starts at the current output

position, with angles counted positively and

clockwise (contrary to the mathematical definition).

When an arc command is executed, the laser focus is

guided along the specified arc at the specified speed.

The Signals for “Laser Active” Operation are

automatically switched on at the beginning of the

execution of an arc command, see also Section

”Polylines”, page 137.

Polylines

If another [*]mark[*] Command (or “Arc” Command)

follows immediately afterward (“Polyline“), the

Signals for “Laser Active” Operation remain on.

Therefore, a continuous marking is possible by a

direct line-up of [*]mark[*] Commands (and

“Arc” Commands).

The Signals for “Laser Active” Operation are switched

off at the beginning of the (normal) command that

follows the last [*]mark[*] Command of a Polyline.

Scanlab RTC6 PCIe Board - Jump Commands; Mark Commands; Arc Commands; Polylines

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