Aligna
®
4D User Manual
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10.4 Storing and Recall of the Individual Parameters
You are able to select, whether the actual parameters are saved in a battery-buffered CMOS
RAM (which keeps the parameters for several years,) when the rack case is switched off and
on, or in contrast the actual parameters will be taken from "default values", when the rack case
is switched off and on (this is actually the standard).
However, the actual values can be defined as "default values", which is described now.
Therefore, in case of strong misalignment of some parameters (and the system does not work
any longer) you can simply go back to "default values" by simply switching off and on the rack
case.
These default values (OCLM and OCLP coefficients, PSD gain and offset values, properties of
the laser, etc.) have to be correct to allow valid working at all. However, these values depend
on your personal individual optical setup, on your laser and on your application. Therefore, you
should store the valid parameters from time to time into the EEPROM of the Aligna's
microController, especially after a processing a learning procedure of the OCL.
NOTE: When you have spent (maybe a lot of) time for learning OCLs, optimizing the ser-
vo parameters, etc., please do not forget to save the gathered parameters as default val-
ues. It just takes a few seconds. When you have lost valid parameters for any reason, you
will be glad not to start from scratch again.
The operating system ("firmware") of the 32 bit microController MOTOROLA 68332 is stored in
1 MB EEPROM, organized in eight blocks, 128 kB each.
One of these blocks (block #7) contains script procedures, which set all user-specific parame-
ters and script commands. This block (in contrast to all other blocks) contains clear text com-
mands, which can be edited by the user. (Menu item "programming uC / edit uC Scripts"). It is
stored in a file "TEM / UserData / <UserNameDataFolder> / uC Scripts".
This file contains a script procedure named "Intro", and a second one, which is called "De-
faults". The "Intro" script is executed at each booting; the "Defaults" script is executed when
booting is completed (and automatic default values are selected, as standard).
The main task of the "Intro" script is, to define the available hardware (quantity and type of
beams, PSDs, motors, piezos, other detectors, laser parameters like wavelength, repetition
rate, cw or pulsed, etc.) (see below "Defining Hardware-Specific Parameters").
The "Defaults" script sets all user-specific parameters of the individual setup, (PSD gain val-
ues, PSD offsets, servo parameters, learned matrix elements, etc.).
10.4.1 Recall of the (User-Specific) Default Parameters
If you switch on the Aligna rack case or if a reset is performed, the system will reboot. (You
can switch on the system by use of the key switch at the front or by use of the main power
switch at the rear side, close to the power cord connector. A hardware reset while power is on
is done either by hitting the small black "reset" key at the µC module, or by menu item "pro-
gramming µC/reset uC"). When the system reboots, (in standard configuration) it will take the
default parameters, indicated by a beb beeep sound.
10.4.2 Storing the actually defined Parameters as Default Parameters
(into the µC's FlashEEPROM)
When you click "SAVE actual Parameters to uC Script" the actually defined parameters are
compared to the default parameters in the "uC Scripts" file.
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