BEKA BA484DF-P, Руководство пользователя

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3
1. DESCRIPTION
The BA484DF-P PROFIBUS Display is an
intrinsically safe instrument that can
simultaneously display up to eight PROFIBUS PA
process variables, together with their units of
measurement and tag information. The instrument
is bus powered so no additional power supply is
required.
Order Communication Function
Code Protocol Blocks
BA484DF-P PROFIBUS PA Eight Analogue
outputs (8 x AO)
Six Digital inputs
(6 x DI)
The instrument’s communications protocol is
shown on a label inside the terminal cover. The ‘-P’
order code suffix also indicates the protocol but is
not shown on the instrument certification label.
There is an alternative version of the fieldbus
display, order code BA484DF-F for use on
FOUNDATION™ fieldbus systems.
Configuration may be performed by either a DPV 0
user PRM data download, or by a DPV 1
configurator and if required the instrument address
may be entered via the instrument’s front panel
push buttons. The required GSD files are available
for downloading from both the PROFIBUS and
BEKA websites.
Eleven selectable standard display formats enable
one, two, three, four or eight process variables,
some with bargraphs to be displayed
simultaneously on one screen.
The four front panel push buttons that control the
instrument display may also be used for returning
operator acknowledgements, thus enabling the
BA484DF-P PROFIBUS Display to function as a
simple operator interface. If larger industrial push
buttons are required for entering these
acknowledgements, up to six external switches
may be connected to the BA484DF-P. These
switch inputs may also be used for returning the
status of plant contacts to the host using the DI
function blocks.
The BA484DF-P PROFIBUS Display can be
supplied with six optional alarm outputs that may
be linked to any of the displayed fieldbus variables.
These alarm outputs are locally activated from the
fieldbus variables and are configured via the
instrument menus and push buttons. They can
not be controlled via the fieldbus.
The instrument has been certified intrinsically safe
by European Notified Body Intertek Testing
Services (ITS) to the ATEX Directive 94/9/EC for
use in explosive gas and combustible dust
atmospheres. ATEX dust certification is an option
– see Appendix 1.
For use in the USA the instrument has intrinsic
safety and nonincendive FM Approval – see
Appendix 2, plus IECEx intrinsic safety approval for
international applications – see Appendix 3.
Housed in a robust IP66 glass reinforced polyester
(GRP) enclosure with a toughened glass window,
the BA484DF-P is surface mounting, or may be
pipe mounted using one of the accessory kits.
1.1 Documentation
This instruction manual describes system design,
conditioning and installation of the BA484DF-P
PROFIBUS display. For detailed commissioning
information please refer to the PROFIBUS
Interface Guide that can be downloaded from the
BEKA website www.beka.co.uk
1.2 Version 3.0 firmware
This manual describes BA484DF-P PROFIBUS
displays employing version 3.0 firmware that was
released in July 2010 and is not backwards
compatible with earlier versions.
Version 3.0 firmware provides
Addition of (6 x DI) function blocks to return
switch status to host.
Fieldbus address entry via instrument push
buttons.
Addition of DPV 0 configuration
Addition of two standard screens allowing
eight fieldbus variables to be simultaneously
displayed.
Removal of text display facilities
When using the ▼ or ▲ button to select
input, or groups of inputs to be displayed,
unused inputs can now be skipped.
The instrument’s firmware version can be
established using the ‘Unit Info’ function in the
main configuration menu – see section 6.3.9 of this
manual. Version 3.0 firmware is shown as
SW480F-02-300.
For BA484DF-P PROFIBUS displays employing
version 2.0 firmware, please refer to the BA484DF-
P Intrinsically safe field mounting fieldbus display
Issue 10 manual dated 8
th
May 2006 which may be
downloaded from the obsolete products section of
the BEKA website.