ABB CEMcaptain GAA610-M, Инструкция по эксплуатации

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GAA610-M
ADVANCED EMISSION GAS MONITORING SYSTEM | OI/GAA610-M-EN REV. B
11 Operation
General
The AO2000 series gas analyzers have several user interfaces:
• The local operation user interface is the display and
control unit on the gas analyzer (‘local HMI’).
• The remote operation user interface is a PC running the
‘AO-HMI’ software (‘remote HMI’). For detailed
information on remote operation, see the ‘AO-HMI’
technical bulletin.
Note
The user interface is designated using the acronym ‘HMI’, which
stands for ‘human machine interface’.
HMI priority
A gas analyzer (or more accurately an analyzer module) can only
be operated via one HMI.
The password hierarchy controls which HMI has or retains
priority for operation (refer to the following table).
As a rule, the HMI with the level n+1 password has priority over
an HMI with the level n password. An exception is the local HMI
with level n password which has priority over a remote HMI with
a level n password.
1st user: 2nd user:
Remote HMI receives … Local HMI receives …
Remote HMI level n Priority with level n+1 Priority with level n
Local HMI level n Priority with level n+1 —
Note
If a second user with an HMI receives priority over another HMI,
all first user input not confirmed with the
‘ENTER’ key is lost and
processes in progress (e.g. calibration) will be stopped.
Specifics for manual calibration
Manual calibration runs at level 0, thus no password is needed.
It is protected in the following manner from being stopped by
another HMI.
On entering the
Calibrate menu the level 1 password is
automatically assigned.
Therefore, any other HMI must at least enter a level 2 password
in order to assume priority for operation. In this event the
calibration run would be stopped.
Access lock
Independent of the user interface priority adjustment it is
possible to completely lock the access to the operation of the
gas analyzer from a certain user interface (HMI).
This lock is effected by configuration of the function block
‘Access lock’.
The Technical Information ‘Function Blocks – Descriptions and
configuration’ contains complete information on the individual
function blocks.
Access denied
When a user tries to operate the gas analyzer via a locked HMI,
the following text is displayed after pressing the
‘MENU’ key:
ACCESS DENIED !
The operation of the analyzer unit is not
permitted at this time.
Cancel: <BACK>
Access lock via password protection
As an alternative to the above-described complete access lock it
is possible to inhibit entering the main menu and thus switching
to the menu mode via password protection, see
Password
protection
on page 53.