Eurotherm 6100, Руководство пользователя

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100/180MM DISTRIBUTED GRAPHIC RECORDER: USER GUIDE
HA029324
Issue 11 Oct 14 Page 195
4.4.2 MANAGEMENT (Cont.)
CONFIGURABLE PARAMETERS (Cont.)
Notes:
1. The Confi guration Revision (and for changes in the Security menus - the Security Revision) are
incremented every time the recorder confi guration (security confi guration) is changed. The
current values can be viewed in the System/About menu (
section 4.6.9 ).
2. All confi guration and security changes must be made either at the recorder operator interface,
or from a host pc using Bridge ‘Full’ software. Use of the confi guration editor is not permitted if
traceability is to be maintained.
3. If fi tted, Event buttons ( section 4.3.7 ) are not included in the Require Signing/Require Authori-
zation regime described above. Instead, each individual button can be confi gured to require
signing or to require both signing and authorization.
4. If a large number of confi guration changes are made with Audit trail enabled, then the number
of messages produced may result in the total amount of data generated exceeding the amount
that can be written to the internal FLASH memory in the time available, particularly if there are
a large number of points confi gured. The recorder responds by reducing the recording speed,
and a message ‘
Recording failed - internal overfl ow. Slowing recording in-
terval of fastest group(s)
’ appears, to draw the user’s attention to the situation.
Password Change on Expiry
If this check box is enabled, then the fi rst time a user tries to login, after his or her pass-
word has expired, a dialogue box appears asking the user to enter a new password.
Only when this new password has been entered and confi rmed, will the user be able
to access the recorder confi guration.
Security Management Option. The new password is not written to the Security Man-
ager until the next ‘deploy’, after which the expiry period confi gured for the user (with-
in Security Management), is restored. The interim expiry period is set to 24 hours, and
the ‘deploy’ must be carried out within this period, or password expiry will recur.
Change Password
New Password
Retype Password
Apply Logout
Centralised Security This checkbox occurs only if the Security Management option is fi tted.
If this checkbox is enabled, none of the other parameters in the Management menu
can be edited at the recorder (i.e. they become ‘Read Only’). Changes can be made
only by means of Security Management software. At the recorder, the following menu
items also become ‘read only’, or do not appear as menu items or are not selectable,
even if the checkbox appears:
Access level permissions ( section 4.1.1 ) (Read Only)
Add User/ Remove User ( section 4.4.3 ) (Do not appear as menu items)
Restore confi guration/Security data ( section 4.2.2 ) (Not selectable)
New confi guration/Security data ( section 4.2.3 ) (Not selectable)
The Security Revision (previously Security Version) is initially set to -1 when Centralised Se-
curity is enabled. It will remain at this value until a successful download has been performed
via Security Manager Software. The Security Revision will then take the downloaded value
(e.g. 139). Any local security revision changes (e.g. max. number of logins exceeded) cause
the value to have a ‘local change count’, starting at 001 appended to it (e.g. 139.001, 139.002
and so on). The local change count is reset to 000 (and no longer displayed) when the next
download occurs (e.g. 140). Downloads can occur automatically when the Security Man-
ager detects that a local change has occurred, or manually, as and when required.