Scanlab RTC 5 PC Interface Board, Installation And Operation Manual

Page: 204 / 622

RTC
®
5 PC Interface Board
Rev. 1.9 e
9 Programming Peripheral Interfaces
204
innovators for industry
9.1.2 8-Bit Digital Output Port
The EXTENSION 2 connector provides a (jumper-
configurable) buffered 8-bit digital output port
(DATA0 to DATA7) (see
page 50 ).
Its output values can be set via write_8bit_port or
write_8bit_port_list . The output is in high-
impedance mode (tri-state) until an initial value is
assigned to it. In addition, the commands
set_port_default (
Port
= 2) or
set_laser_off_default can be used to define the
value to be outputted at the 8-bit digital output port,
as soon as processing of a list has ended with
stop_execution or via an external stop signal. The
default value also takes effect together with the
position- and/or speed-dependent laser control (see
set_port_default ).
If automatic laser control is activated, then the value
at the 8-bit digital output may automatically get
adjusted (see
page 140 ). You can log this via
set_trigger
/
set_trigger4
.
When the output value is changed, a LATCH signal is
outputted at the EXTENSION 2 connector as a trigger
signal for synchronization of data transmission
(provided that pin (17) has been correspondingly
configured via the jumper setting, see
page 50 ).
9.1.3 2 Bit Digital Output Port
The LASER connector provides a buffered 2-bit digital
output port (DIGITAL OUT1 and DIGITAL OUT2) (see
page 46 ). Its output values can be set via
set_laser_pin_out or set_laser_pin_out_list . The
output is in high-impedance mode (tri-state) until an
initial value is assigned to it. In addition, the
command
set_port_default (
Port
= 4) can be used
to define the value to be outputted at the 2-bit digital
output port, as soon as processing of a list has ended
with
stop_execution or via an external stop signal.
9.1.4 12-Bit Analog Output Ports
The LASER connector provides the two 12-bit analog
output ports, ANALOG OUT1 and ANALOG OUT2 (see
page 47 ). The ANALOG OUT2 output port is also
available via the MARKING ON THE FLY connector
(see
page 51 ).
The output values can be separately set via
write_da_x or write_da_x_list . In addition, the
commands set_port_default (
Port
= 0 or 1) or
set_laser_off_default can be used to define the
values to be outputted at the 12-bit analog output
ports, as soon as processing of a list has ended with
stop_execution or via an external stop signal. The
default value also takes effect together with the
position- and/or speed-dependent laser control (see
set_port_default ). If accordingly preset via corre-
sponding commands, the values at the analog output
ports are also changed via a softstart (see
"Softstart
Mode" on page 135 ) or in the pixel mode (see
page 192 ).
If automatic laser control is activated, then the value
at one of the 12-bit analog output ports may auto-
matically get adjusted (see
page 140 ). You can log
this via
set_trigger
/
set_trigger4
.