Set_Sky_Writing_Para - Scanlab RTC6 PCIe Board Installation And Operation Manual

Ctrl Command set_sky_writing_para
Function Activates
Sky Writing
set_sky_writing_para( Timelag, LaserOnShift, Nprev, Npost )
Call
Timelag
Parameters
LaserOnShift
Nprev
Npost
Comments • For information on
Chapter 7.2.4 "Sky Writing", page
• If Nprev  65,535, then set_sky_writing_para behaves similarly to set_sky_writing:
Nprev is set to a value of approx. (0.15 × Timelag).
• If Npost  65,535, then set_sky_writing_para behaves similarly to set_sky_writing:
Npost is set to a value of approx. (0.1 × Timelag).
• set_sky_writing_para cannot be used to switch back and forth between
Sky Writing Mode
command for this is set_sky_writing_mode).
RTC6 boards
Doc. Rev. 1.0.21 en-US
10 RTC6 Commands
Sky Writing Mode 1 and sets the corresponding parameters or switches
off.
Sky Writing parameter.
1.0 equals 1 µs.
The Timelag value is used with an accuracy of 1/64 µs.
As a 64-bit IEEE floating point value.
 1/4:
Sky Writing Mode 1
From 1/8 to 1/4,
but Timelag = 0 is internally applied.
< 1/8: Sky Writing
Shift (for positive values: delay) of the point of time, where the are
switched on (see Figure
1 bit equals 1/64 µs.
As a signed 32-bit value.
Negative values smaller than the complete run-in phase are clipped at
runtime, therefore the following applies automatically:
LaserOnShift
 ca. (–40) × Nprev
 ca. (–20) × Nprev
Defines the duration of the run-in phase (see
1 bit equals 10 µs.
As an unsigned 32-bit value.
Allowed value range: 0  Nprev  (2
Run-in duration [µs]
0 × Nprev
0 × Nprev
Defines the duration of the run-out phase (see
1 bit equals 10 µs.
As an unsigned 32-bit value.
Allowed value range: 0  Npost  (2
Run-out duration [µs]
0 × Npost
0 × Npost
Sky Writing mode and a description of the parameters, see
1, Sky Writing Mode 2
is activated.
Sky Writing is activated,
is deactivated.
46).
Modus
1
2 or 3
Figure
32
–1).
Modus
1
2 or 3
32
–1).
Modus
1
2 or 3
160.
and Sky Writing Mode 3
46).
Figure 46).
(the proper
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