DH Instruments PPC2+, Руководство пользователя

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PPC2+™ Operation and Maintenance Manual
Page 71
©2001 DH Instruments, Inc.
Reset - All
m
PURPOSE
>RO \O]O^ KVV P_XM^SYX aSVV MVOK\ KXN NOVO^O VK\QO KWY_X^] YP _]O\ NOPSXON
SXPY\WK^SYXSXMV_NSXQM\S^SMKVMKVSL\K^SYXNK^K
Combines all resets in one global reset command that clears the entire user
section of non-volatile memory. These include:
•
Reset - sets (see Section 3.4.4.5.1).
•
Reset - units (see Section 3.4.4.5.2).
•
Reset - seq (see Section 3.4.4.5.3).
•
Reset - cal (see Section 3.4.4.5.4).
•
Reset - Com1, Com2 and IEEE-488 interface to defaults (see
Section 3.4.4.3).
>RO\O S] XY \O]O^ ^cZO ^RK^ KPPOM^] ^RO _]O\ VO`OV Z\Y^OM^SYX ]O^^SXQ] ]OO
=OM^SYX
3.4.4.6 LEVEL
m
PURPOSE
To set user protection levels to restrict access to certain functions and to edit the
password required for changing user levels.
m
PRINCIPLE
PPC2+’s front panel user interface provides the means to access all PPC2+ user
defined data, settings and functions including calibration data.
Inadvertent, uninformed or unauthorized altering or deleting of data, settings and
functions could require extensive reconfiguration by the user and might cause
invalid readings and behavior. For these reasons, depending upon the
application in which PPC2+ is being used, it may be desirable to restrict access to
certain functions for certain users. The user level function provides a means of
restricting access to certain functions. Four different levels of security
are available.
Access to changing security levels can be left open, or be protected by
a password.