Toptica FemtoFiber pro IR, Руководство пользователя

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FemtoFiber
®
pro Laser System
Page 86
Status: 6.9.18
6.8 Userlevels
6.8.1 General
The FemtoFiber
®
pro can be controlled via different interfaces. While the access via RS232 and USB is lim-
ited to only one controlling PC, which is furthermore directly connected to the FemtoFiber
®
pro Control
Unit, the access via Ethernet allows the access by multiple persons at the same time if the FemtoFiber
®
pro is integrated into a local area network (LAN). This possibility offers a great flexibility and, e.g. the pos-
sibility to monitor the laser performance in the office while an experiment is running in the laboratory.
However, in this case you may not want everybody in the network to be able to operate the laser,
switch it ON and OFF or change any other setting. For this reason the FemtoFiber
®
pro control can be
password protected. This protection is realized by different userlevels, i.e., different levels of control privi-
leges:
The lowest userlevel (level 0) allows to query most of the laser settings and the laser status but does not
give write access to any of the settings nor does it allow to operate anything. Userlevel 0 is not password
protected.
The userlevel for regular laser operation is level 1. It offers all the commands which are necessary to oper-
ate the FemtoFiber
®
pro Laser System. Level 1 is password protected, but upon delivery the password is
empty. When you want to connect the FemtoFiber
®
pro to a LAN we strongly suggest to change the
password !
6.8.2 Changing the UserLevel
In order to simplify operation, the console access via RS232 and USB always starts with userlevel 1, mean-
ing that the FemtoFiber
®
pro can immediately be controlled without the need of entering a password.
This is also true for access via Ethernet as long as the level 1 password is empty (factory default).
As soon as the password is not empty, a control connection via Ethernet starts with userlevel 0, giving
only limited read access. In order to control the laser, the userlevel must be changed first. The following
commands are used to read the current userlevel, to change the userlevel and to change the password:
ffpro.userlevel() (command, no parameter, integer result value)
Returns the currently active userlevel.
ffpro.changeuser() (command, 1 optional parameter, integer result value)
This command allows to change the active userlevel.
After submitting the command it waits for the password input, completed by the ENTER key. Depend-
ing on the entered password the userlevel is chosen. As an option the password can be added as
parameter to this function (ffpro.changeuser(“mypasswd”)). Unknown passwords will set userlevel 0.
Result value: new userlevel
ffpro.changepasswd() (command, 1 optional parameter, no result value)
This command allows to change the password for userlevel 1. After submitting the command it waits
for password input, completed by the ENTER key. The password then must be entered a 2nd time in
order to avoid typos. Alternatively the new password can be added as optional parameter
(ffpro.changepasswd(“newpasswd”).