Laser Control; Enabling, Activating And Switching Laser Control Signals - Scanlab RTC6 PCIe Board Installation And Operation Manual

7.4 Laser Control

At certain output ports, the RTC6 PCIe Board outputs
signals which can be used for controlling various laser
types ("Laser Control Signals" LASERON, LASER1,
LASER2). These output ports are at the:
• LASER Connector, see
"LASER Connector", page 73
• EXTENSION 2 socket connector, see
Chapter 4.6.3 "EXTENSION 2 Socket Connector",
page 80
The laser control mode is set by set_laser_mode:
• The CO Mode (laser mode 0; default after
2
load_program_file) is designed for controlling a
CO laser.
2
• The YAG modes (laser mode 1, 2, 3, 5) are
designed for controlling lasers from the
Nd:YAG family (and related).
• Laser Mode 4 and Laser Mode 6
controlling free-running lasers.
All Laser Control Signals are TTL signals. By
set_laser_control, it is set whether they are
active-HIGH or active-LOW, see also
"LASER Connector", page
can be queried by get_startstop_info (Bit
For the maximum current load values, see
"Technical Specifications – RTC6 PCIe Board",
page 872.
(1) For synchronization to externally controlled
free-running lasers, see Chapter 7.4.10
"Synchronization of the RTC6 Clock Cycle and an
External Clock Signal", page
RTC6 boards
Doc. Rev. 1.0.21 en-US
7 Basic Functions for Scan Head Control and Laser Control
Chapter 4.6.1
are designed for
(1)
Chapter 4.6.1
73. Their current setting
#13).
Chapter 15
207.
7.4.1 Enabling, Activating and
Switching
Laser Control Signals
All Laser Control Signals are suppressed:
• After a hardware reset and
• After initialization with load_program_file.
Then, all laser control signal output ports (LASERON,
LASER1 and LASER2) are in high impedance mode.
Before Laser Control Signals
their polarity must first be set by set_laser_control.
This cancels the tristate state at the same time (=
"global unblock"). By default, LASERON and
LASER1/LASER2 are set to their respective "Off"
levels.
The tristate state is only set again:
• after a hardware reset (restart)
load_program_file
• a call of
Furthermore, real Laser Control Signals
enabled:
• either simultaneously by
set_laser_control(Bit #2
• afterwards with the separate command
enable_laser
These can be suppressed again by
pause_list. In both cases, all
set to their respective "Off" levels.
By get_startstop_info (Bit
Bit #14) it can be read out:
• The "global unblock" by
• The polarities of LASERON and LASER1/LASER2
• The enabling of the Signals for "Laser Active"
Operation by enable_laser
General notes on the Laser Control Signals
found in Section "Signals for "Laser Active"
Operation", page 186 and
"Laser Standby" Operation", page
specific details depend on the set laser mode, see
Chapter 7.4.3 "CO Mode", page 188
2
Chapter 7.4.8 "Pulse Picking Laser Mode", page
The assignment of the Laser Control Signals
respective output pins at the
configured, see Chapter 7.4.2 "Configuring the
LASER Connector", page 187.
can be outputted at all,
must be
= 0) or
disable_laser or
Laser Control Signals are
#9, Bit #10, Bit #13,
set_laser_control
can be
Section "Signals for
186. Mode-
to
196.
to the
LASER Connector can be
184