RTC
®
5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
486
Ctrl Command set_softstart_mode
Function switches softstart mode on or off.
Call
set_softstart_mode( Mode, Number, Delay )
Parameters All parameters are unsigned 32-bit values.
Parameter Allowed Values Description
Mode
= 0
= 1, 11
= 2, 12
= 3, 13
disables the softstart mode, but does not remove previously loaded
softstart values.
the softstart values defined via set_softstart_level will be outputted as
analog voltage values at the ANALOG OUT1 port.
the softstart values defined via set_softstart_level will be outputted as
analog voltage values at the ANALOG OUT2 port.
the softstart values defined via set_softstart_level specify the
pulselenghts of the first
Number
laser signal pulses at the LASER1 port
(neither in laser mode 4 nor in laser mode 6).
Number
1 … 1024 number of softstart values to be transmitted.
Delay
0…(2
32
–1)
(1 bit equals 10 µs)
defines the time period for which the laser must have been switched off
before softstart will be activated at the next switch-on.
Comments • The command set_softstart_mode must be called before first-time use of the
set_softstart_level command, particularly if softstart values are to be outputted as
analog voltage values (default setting for softstart value handling:
Mode
=3).
• The individual softstart values
Level
(0) –
Level
(
Number
– 1) must be provided individ-
ually via separate calls of set_softstart_level. Indices for which no
Level
value was
supplied are undefined.
• If the values for
Mode
or
Number
are invalid, then softstart mode will be switched off.
• When softstart mode is switched off, the already transmitted values are not deleted and
can be further used after a renewed switch-on. Here, you shouldn’t unintentionally
switch between analog voltage values (
Mode
= 1, 2, 11 or 12) and pulselenghts (
Mode
= 3 or 13). In contrast, you can switch at any time between ANALOG OUT1 (
Mode
= 1
or 11) and ANALOG OUT2 (
Mode
= 2 or 12).
• The softstart mode is incompatible with the pixel mode (see page 192). The command
set_softstart_mode will be executed, but softstart will not be executed while pixel
mode is operational.
• The softstart mode should not be used in conjunction with automatic laser control (see
page 140) if automatic laser control readjusts the 12-bit output values at the
ANALOG OUT1 or ANALOG OUT2 output ports or pulse lengths (
PulseLength
) or
output periods (
HalfPeriod
) of the laser signals LASER1 and LASER2.
Softstart mode cannot be combined with “freely definable wobbel shapes”. If one is
defined and activated, the command will have no effect.
• Observe the notes in the section "Softstart Mode" on page 135.
RTC
®
4
RTC
®
5 essentially unchanged functionality (except for the extended range of values)
Instead of acquiring analog softstart values with the trailing edge of the laser signal pulse
(as achievable in the RTC
®
4 with
Mode
= 1, 2 or 3), a 180° phase-shifted laser signal can be
used as a trigger signal for realizing phase-shifted data acquisition with the RTC
®
5 (see
notes in the section "Softstart Mode" on page 135). An index shift will no longer exist
under any circumstances.
Version info Last change with version OUT 515
References set_softstart_level, set_softstart_level_list, set_softstart_mode_list
To Next Page
Loading...
