Scanlab RTC 5 PC Interface Board - set_encoder_speed_ctrl

RTC
®
5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
419
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Ctrl Command set_encoder_speed_ctrl
Function same as set_encoder_speed (see above), but a control command
Call
set_encoder_speed_ctrl( EncoderNo, Speed, Smooth )
Parameters EncoderNo Number of the encoder counter to be used for speed measurement
as an unsigned 32-bit value,
allowed values:
= 0: Encoder counter Encoder0
= 1: Encoder counter Encoder1
= 2 and 3: vectorial encoder velocity: a vectorial velocity is calculated
from both encoder speeds (via the pulse rates of both encoder
counters) for use with encoder-speed-dependent automatic
laser control in
Mode = 5.
Higher bits are ignored.
Speed Target encoder speed (counter pulse rate) in [counter pulses/ms]
as a 64-bit IEEE floating point value;
allowed range: [100.0 … 16000.0]; for
Speed > 16000.0, Speed is
clipped to 16000.0, for 0.0 <
Speed < 100.0 to 100.0.
Smooth Smoothing factor for a 2-stage low-pass filter as a 64-bit IEEE floating
point value; allowed range: [0.0 … 1.0]; larger values will be clipped.
Comments • For Speed  0.0 or Smooth < 0.0, the command is ignored (get_last_error return code
RTC5_PARAM_ERROR ).
• The command will also be ignored (get_last_error return code:
RTC5_BUSY ) if the
board’s BUSY status is currently set (list is being processed or has been halted via
pause_list). In contrast, the command is executed when a list has been paused via
set_wait (PAUSED status set) or the board’s INTERNAL-BUSY status is currently set.
RTC
®
4  RTC
®
5 new command
Version info Last change with version DLL 536, OUT 536:
EncoderNo = 2 and 3
References set_encoder_speed, set_auto_laser_control