BEKA BA648CF-P User manual

Issue 2
23
rd
June 2011
BA648CF-P
PROFIBUS PA
Panel mounting
8 variable
Fieldbus Indicator
Issue: 2

2
1. Description
1.1 Documentation
2.Operation
2.1 Error messages
3. System Design for Hazardous Area
4. Installation
4.1 Location
4.2 Installation procedure
4.3 EMC
5. Configuration
5.1 Configuration menus
5.2 Node configuration menu
5.2.1 Enter fieldbus address
5.2.2 Access code
5.2.3 Change from node to listener
5.2.4 Reset to node factory defaults
5.3 Listener configuration menu
5.3.1 Access
5.3.2 Summary of configuration
functions.
5.4 Description of listener menu functions
5.4.1 Scan fieldbus segment
5.4.2 List configured input
parameters.
5.4.3 Enter address & display
parameters.
5.4.4 Enable selected input
5.4.5 Enter source address
5.4.6 Enter destination address
5.4.7 Enter Index
5.4.8 Decimal point position
5.4.9 Configuration of bargraph
5.4.10 Scale numeric display
5.4.11 Access code for listener
configuration menu.
5.4.12 Change from fieldbus listener to
fieldbus node.
5.4.13 Reset the listener to factory
defaults.
6. Maintenance
6.1 Fault finding during commissioning
6.2 Fault finding after commissioning
6.3 Servicing
6.4 Routine maintenance
6.5 Guarantee
6.6 Customer comments
7. Accessories
7.1 Scale marking
7.2 Tag number
7.3 Fieldbus Interface Guide
CONTENTS
The BA648CF is CE marked to show compliance with the European EMC Directive 2004/108/EC

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1. DESCRIPTION
The BA648CF-P fieldbus indicator is a general
purpose, PROFIBUS PA indicator that may be
configured as a fieldbus node or as a fieldbus
listener. It can display up to eight fieldbus process
variables on a five digit LCD and a 31 segment
analogue bargraph. The instrument is bus
powered so no additional power supply is required
and it has PROFIBUS PA User Organisation
approval, certificate Z01505.
Fieldbus node configuration may be performed by
either a User PRM data download or by a DPV1
configurator, and if required, the instrument
address may be entered via the front panel push
buttons.
When configured as a fieldbus listener, the
BA648CF-P is not visible to the fieldbus host and
can only be configured using the push buttons on
the front of the instrument.
Housed in a robust 72 x 144 panel mounting DIN
enclosure, the BA648CF-P fieldbus indicator has
an IP66 front panel and is supplied with a gasket to
seal the joint between the instrument and the
panel.
The instrument’s communication protocol is shown
on the rear of the instrument. The ‘-P’ order code
suffix also indicates the protocol but is not shown
on the instrument identification label. There is an
alternative version of the fieldbus display, order
code BA648CF-F for use on FOUNDATION™
fieldbus networks.
1.1 Documentation
This instruction manual describes installation,
configuration and use of the BA648CF-P as a
PROFIBUS PA listener and as a PROFIBUS PA
node. For additional node configuration
information please refer to the BEKA PROFIBUS
PA Display – Fieldbus Interface Guide which is
available from the BEKA sales office, or may be
downloaded from www.beka.co.uk
2. OPERATION
The BA648CF-P indicator can display up to eight
pre-configured PROFIBUS PA process variables
designated in-1 to in-8. The operator can select
which variable is displayed using the ▼and ▲
push buttons which scroll the display through the
eight inputs. A numeric annunciator on the left
hand side of the display shows which of the eight
inputs is currently being displayed.
2.1 Error messages
‘no ConF’ No inputs have been
configured or are enabled.
‘no dAtA’ No data is being received
with the current configuration.
3. SYSTEM DESIGN
The BA648CF-P PROFIBUS PA indicator is
powered and communicates via the fieldbus which
is connected to non-polarised terminals 1 and 2 as
shown in Fig 1. The indicator may be connected to
any PROFIBUS PA segment that can supply the
additional 13mA at between 9 and 32V required to
power the instrument.
Fig 1 Typical PROFIBUS PA segment

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4. INSTALLATION
4.1 Location
The BA648CF-P is housed in a robust aluminium
enclosure with a toughened glass window mounted
in a Noryl bezel. The front of the instrument
provides IP66 protection and a gasket seals the
joint between the instrument enclosure and the
panel. The instrument may be installed in any
panel providing the environmental limits shown in
the specification are not exceeded.
Fig 2 shows the overall dimensions of the
BA648CF-P and the panel cut-out. To achieve an
IP66 seal between the instrument enclosure and
the panel, the smaller cut-out must be used and
the instrument secured with four panel mounting
clips.
Fig 2 BA648CF-P dimensions
4.2 Installation Procedure
a. Insert the BA648CF-P into the instrument
panel cut-out from the front of the panel.
b. Fix panel mounting clips to opposite sides of
the instrument and tighten until the
instrument is secure. Four clips are required
to achieve an IP66 seal between the
instrument enclosure and the panel.
c. Connect the panel wiring to the rear terminal
block as shown in Fig 3. To simplify
installation, the terminals are removable so
that panel wiring can be completed before
the instrument is installed.
Fig 3 Installation and terminal connections
4.3 EMC
The BA648CF-P complies with the requirements of
the European EMC Directive 2004/108/EEC. For
specified immunity, all wiring should be in
screened twisted pairs with the screens earthed at
one point.

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5. CONFIGURATION
The BA648CF-P 8 variable PROFIBUS PA
indicator may be configured as a fieldbus node or
as a fieldbus listener. When used as a fieldbus
node the indicator is configured via the fieldbus
host although the instrument address may be
entered via the front panel push buttons using the
menu shown in Fig 4. For detailed node
conditioning information please refer to the BEKA
PROFIBUS PA Display – Fieldbus Interface Guide
which may be downloaded from the BEKA website
www.beka.co.uk
As a fieldbus listener, the BA648CF-P is not visible
to the fieldbus host and can only be configured via
the front panel push buttons using the menu
shown in Fig 6.
Throughout this manual the BA648CF-P push
buttons are identified P E ▼▲and legends
displayed by the instrument are shown within
inverted commas e.g. ‘CodE’ and ‘Enb’.
5.1 Configuration menus
The configuration menus are separated into two
sections, fieldbus node and fieldbus listener. Both
contain the ‘tYPE’ function that enables transfer
between the two. Unless otherwise requested
when ordered, all PROFIBUS PA BA648CF-P
instruments are supplied as a fieldbus node with
default configuration but can easily be reconfigured
on-site.
5.2 Node configuration menu
The node configuration menu is shown in Fig 4.
Access to the menu is obtained by operating the P
and Ebuttons simultaneously. If the BA648CF-P
is not protected by an access code the first
parameter 'Addr’ will be displayed. If the
instrument is protected by an access code, ‘CodE’
will be displayed first. Pressing Pwill allow the
four digit security code to be entered digit by digit
using the ▼or ▲button to adjust the flashing digit
and Pto move control to the next digit. When the
correct code has been entered, pressing Ewill
cause the first parameter ‘Addr’ to be displayed.
If an incorrect code is entered, or no button is
pressed for ten seconds, the BA648CF-P will
automatically return to the display mode.
5.2.1 Enter fieldbus address ‘Addr’
This function enables the fieldbus address of the
BA648CF-P to be entered via the push buttons.
Select ‘Addr’ in the node menu using the ▼or ▲
button and press Pto enter the function. This will
reveal the existing three digit decimal address with
the left hand digit flashing which may be changed
by operating the ▼or ▲button.
When set as required operating the Pbutton will
transfer control to the next digit that may be
adjusted in the same way. When all digits are set
as required operating the Ebutton will enter the
new address and the indicator will restart in the
display mode after completing the initialisation
sequence. If the address is not changed,
operating the Ebutton will return the display to the
‘Addr’ prompt in the node configuration menu.
5.2.2 Access code for configuration menu
‘CodE’
Access to the node configuration menu may be
protected by a four digit security code which must
be entered to gain access. New instruments are
supplied configured with the default code 0000
which disables this protection and allows
unrestricted access to the configuration menu.
To enter a new access code select ‘CodE’ in the
node configuration menu by operating the ▼or ▲
button. To enter the function press Pwhich will
reveal the current access code with one digit
flashing. The code may be changed using the ▼or
▲button to adjust the flashing digit and the P
button to move control to the next digit. When the
required code has been selected, press Eto enter
the selection and return to the ‘CodE’ prompt in the
configuration menu. The revised access code will
be activated when the transmitter is returned to the
display mode.
If the access code is lost please contact BEKA
associates.
5.2.3 Change from node to listener ‘tYPE’
This function enables the instrument to be
changed from a fieldbus node to a fieldbus listener.
Select ‘tYPE’ in the node configuration menu using
the ▼or ▲button. To enter the function press P
which will show that the instrument is configured as
a fieldbus node, to change to a fieldbus listener
press the ▼or ▲button which will toggle the
display to ‘LStnr’ To prevent accidental changes
this request must be confirmed by operating the P
button and entering ‘5urE’. The instrument will
display ‘0000’ with the first digit flashing, using the
▼or ▲button set the flashing digit to ‘5’ and press
the Pbutton to move control to the next digit which
should be set to ‘u’. When the four letters of ‘5urE’
have been entered, operating the Ebutton will
cause the instrument to restart as a fieldbus
listener in the display mode.
CAUTION
All the instrument’s node configuration
information will be lost when it is
changed from a fieldbus node to a
fieldbus listener.

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Please refer to the quick set-up procedure in the
BEKA PROFIBUS PA Display – Fieldbus Interface
Guide.
5.2.4 Reset the instrument to node factory
defaults ‘rESEt’
The BA648CF-P may be reset to the factory
defaults that are shown below:
Security Code 0000 (disabled)
Device address 126
For each of the eight inputs:
Decimal point XXX.XX
Bar Type Left
Bar lower limit 0.0
Bar Upper limit 100.0
Gain 1.0
Offset 0.0
To reset the BA648CF-P select ‘rESEt’ in the
configuration menu by operating the ▼or ▲
button. To enter the function press Pwhich will
reveal ‘0000’ with the left hand digit flashing. To
prevent accidental use of this function, ‘5urE’ must
be entered to confirm that the instrument is to be
reset.
Using the ▼or ▲button set the flashing digit to ‘5’
and press the Pbutton to move control to the next
digit which should be set to ‘u’. When the four
letters of ‘5urE’ have been entered operating the E
button will reset the BA648CF-P to the factory
defaults. Any existing configuration and addresses
will be lost when the instrument is reset.
FIG 4 Node configuration menu
5.3 Listener configuration menu
When used as a fieldbus listener the BA648CF-P
is not visible to the fieldbus host and can only be
configured using the front panel push buttons
shown in Fig 2.
The listener configuration menu is separated into
three sections, ‘SCAn’, ‘LISt’ and ‘Edit’, plus three
housekeeping functions ‘CodE’, ‘tYPE’ and ‘rESEt’
as shown in Fig 6.
‘SCAn’ is the simplest method of configuration if
the addresses of the data sources to be displayed
by the BA648CF-P listener are not known.
In the ‘SCAn’ function pressing the Pbutton
causes the BA648CF-P listener to search the
fieldbus segment to which it is connected for all
data sources. The hexadecimal device
addresses for each data source are displayed as
shown in Fig 5.
The ▼and ▲push buttons scroll the display
through all the data sources on the segment
showing the source and destination address for
each one. To aid identification, operating the P
button will preview the value of the data at the
selected addresses with a zero index i.e. the first
five bytes in the data string. If the format of the
data is not DS-33 (status + float) ‘no dAt’ will be
displayed. The selected source and destination
addresses may be allocated to one of the eight
BA648CF-P listener inputs in-1, to in-8. Operating
the Pbutton will reveal the current listener input
which may be changed using the ▼or ▲push
button, when set as required, operating the Epush
button will enter the allocation. If the process
variable to be displayed is located further along the
data stream i.e. has an index greater than 5, the
required index must be entered via the index ‘ind’
function in the edit sub-menu.
A worked configuration example illustrating this
procedure is contained in the Quick Set-up section
of the BEKA PROFIBUS PA Display – Fieldbus
Interface Guide.
Fig 5 Device Addresses
If the source and destination addresses and index
of the process variable to be displayed by the
BA648CF-P listener are known, they may be
directly entered via the edit sub-menu. This sub-
menu also provides full control of both the numeric
and bargraph display parameters.

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5.3.1 Access
Access to the listener configuration menu is
obtained by operating the Pand Ebuttons
simultaneously. If the BA648CF-P listener
configuration menu is not protected by an access
code the first parameter 'SCAn’ will be displayed.
If the BA648CF-P is protected by an access code,
‘CodE’ will be displayed first. Pressing Pwill allow
the four digit security code to be entered digit by
digit using the ▼or ▲button to adjust the flashing
digit and Pto move control to the next digit. When
the correct code has been entered, pressing Ewill
cause the first parameter ‘SCAn’ to be displayed.
If an incorrect code is entered, or no button is
pressed for ten seconds, the indicator will
automatically return to the display mode.
Section 5.3.2 contains a summary of each
configuration function including a cross reference
to a more detailed description.
5.3.2 Summary of listener configuration
functions
Instrument Summary
display of function
‘SCAn’ Scan fieldbus segment
Identifies all data sources on the
fieldbus segment to which the listener is
connected and enables selected data to
be allocated to one of the eight listener
inputs in-1 to in-8.
See section 5.4.1
‘LiSt’ List configured input parameters
For each of the eight BA648CF-P
listener inputs, in-1 to in-8 shows if the
input is enabled; Source Address;
Destination Address and the Index
which have been allocated.
Parameters can not be changed from
within this function.
See section 5.4.2
‘Edit’ Enter addresses and display
parameters
Sub-menu which allows known fieldbus
device addresses to be entered and all
display parameters adjusted for each of
the eight fieldbus listener inputs.
See section 5.4.3
‘Enb’ Enable selected input
Enables each of the eight
listener inputs in-1 to in-8 to
be enabled or disabled
without affecting any
parameters.
See section 5.4.4
‘SrC’ Enter Source Address
Allows hexadecimal fieldbus
device source address for
each of the eight listener
inputs in-1 to in-8 to be
entered.
See section 5.4.5
‘dSt’ Enter Destination Address
Allows hexadecimal fieldbus
device destination address
for each listener input in-1 to
in-8 to be entered.
See section 5.4.6
‘ind’ Enter Index
Allows hexadecimal index
for specified fieldbus source
address to be entered for
each listener input in-1 to
in-8.
See section 5.4.7
‘dP’ Decimal point position
Defines position of displayed
decimal point for each
listener input in-1 to in-8.
See section 5.4.8
‘bAr’ Configuration of bargraph
Defines the bargraphs
justification and the digital
display at which the
bargraph is zero and full
scale for each listener input
in-1 to in-8.
See section 5.4.9
‘SCALE’ Scale numeric display
Applies zero offset and
scale factor to the numeric
display for each listener
input in-1 to in-8.
See section 5.4.10
‘CodE’ Access code for listener
configuration menu
Enters a four digit security access
code for configuration menu. Default
code 0000 disables this function.
See section 5.4.11
‘tYPE’ Change from listener to node
Enables the instrument to be
conditioned as a fieldbus listener or a
fieldbus node.
See section 5.4.12
‘rESEt’ Reset to listener factory defaults
Returns the BA648CF-P listener to
factory defaults.
See section 5.4.13

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5.4 Description of listener menu functions
This section contains a detailed description of each
function in the listener configuration menu. It
should be read in conjunction with Fig 6.
5.4.1 Scan fieldbus segment ‘SCAn’
If the Device Addresses of a data source are not
known, the ‘SCAn’ function provides a simple way
to identify them. This function scans the fieldbus
segment to which the BA648CF-P listener is
connected and identifies all the data sources. To
aid identification the value of the process variable
with a zero index i.e. the first five bytes in the data
string at the address may be pre-viewed.
The BA648CF-P listener only supports DS-33
formatted data (status+float) which is the usual
format for analogue process variables. The
‘SCAn’ function will identify, irrespective of format,
all data sources on the segment whose destination
address is five bytes long. When pre-viewed, non
DS-33 formatted data will produce a ‘no dAt’ error
message.
‘SCAn’ is the first function displayed when entering
the configuration menu, or it may be selected from
within the menu by operating the ▼or ▲button.
To scan the fieldbus segment to which the listener
is connected for all data sources press Pwhich will
reveal the hexadecimal source address and
destination address of the first data source found
as shown in Fig 5. If there is more than one data
source, operating the ▼or ▲button will scroll
though all of them.
If there are no data sources on the fieldbus
segment the BA648CF-P listener will display
‘noSrC’.
When the source and destination addresses of a
data source are displayed, to aid identification the
value of the process variable with a zero index i.e.
the first five bytes in the data string may be pre-
viewed by operating the Pbutton. If this confirms
that it is the required address, it may be allocated
to one of the eight BA648CF-P listener inputs in-1
to in-8. To select the required listener input, press
Pwhich will display the first input in-1. Operating
the ▼or ▲button will scroll the display through
the other inputs. When the required input is
displayed pressing Ewill allocate the selected data
source address to the selected input and return the
display to the source and destination addresses
from which another data source address may be
selected. When a data source address is allocated
to a listener input any previous allocation will be
overwritten.
If the required process variable has an index
above 5 i.e. it is not the first five bytes in the data
string, the required index should be entered via the
‘ind’ function in the Edit sub-menu which is
described in section 5.4.7
5.4.2 List configured input parameters ‘LiSt’
The ‘LiSt’ function enables the Source Address,
Destination Address and Index allocated to each
listener input to be viewed without danger of it
being accidentally changed.
The ‘LiSt’ function may be selected from within the
menu by operating ▼or ▲button. To enter the
function press Pwhich will display the listener input
currently selected in the display mode, other inputs
may be selected using the ▼or ▲button.
Operating the Pbutton will cause the following
parameters for the selected input to be displayed
sequentially:
Display Explanation
‘Enb:Y or N’ Input Enabled yes or no
‘SrC:00’ Source Address
‘dSt :00’ Destination Address
‘ind :00’ Index
The display then automatically returns to the
selected BA648CF-P listener input from where
another input may be selected.
If one of the eight BA648CF-P Listener’s inputs in-
1 to in-8 has not had a Source Address,
Destination Address and Index allocated to it, ‘LiSt’
will show both addresses as ‘FF’ and the index
‘ind’ as ‘00’.
5.4.3 Enter address & display parameters
‘Edit’
The ‘Edit’ sub-menu may be selected from within
the menu by operating ▼or ▲button. To enter the
function press Pwhich will display the listener input
currently selected in the display mode, other
listener inputs may be selected using the ▼or ▲
button. When the required input has been
selected operating the Pbutton will enter the edit
sub-menu at ‘Enb’ for the selected input.
5.4.4 Enable selected input ‘Enb’
‘Enb’ turns the listener input selected in the Edit
function on or off without affecting the conditioning.
To enter the function press Pwhich will reveal
whether the selected input is ‘on’ or ‘oFF’.
Operating the ▼or ▲buttons will toggle between
the two conditions. When set as required
operating the Ebutton will enter the selection and
return to the ‘Enb’ prompt in the edit sub-menu.

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5.4.5 Enter source address ‘SrC’
This function allows a known fieldbus device
source address to be entered and allocated to the
listener input selected in the edit function. To enter
the function press Pwhich will reveal the existing
two digit hexadecimal address with one digit
flashing which may be changed by operating the ▼
or ▲button. When set as required operating the
Pbutton will transfer control to the second digit that
may be adjusted in the same way. When both
digits are set as required operating the Ebutton
will enter the selection and return to the ‘SrC’
prompt in the edit sub-menu.
5.4.6 Enter destination address ‘dSt’
This function allows a known fieldbus device
destination address to be entered and allocated to
the listener input selected in the Edit function. To
enter the function press Pwhich will reveal the
existing two digit hexadecimal address with one
digit flashing which may be changed by operating
the ▼or ▲button. When set as required operating
the Pbutton will transfer control to the second digit
that may be adjusted in the same way. When both
digits are set as required operating the Ebutton
will enter the selection and return to the ‘dSt’
prompt in the edit sub-menu.
5.4.7 Enter Index ‘ind’
Index defines the location of the required process
variable in the data string. The ‘ind’ function allows
a known Index for the selected fieldbus Source
Address to be entered and allocated to the
BA648CF-P listener input selected in the Edit
function. The data location is manufacturer specific
and can not be automatically determined; the
device documentation should therefore be
consulted. To enter the function press Pwhich will
reveal the existing two digit hexadecimal Index with
one digit flashing which may be changed by
operating the ▼or ▲button. When set as required
operating the Pbutton will transfer control to the
second digit that may be adjusted in the same way.
When both digits are set as required operating the
Ebutton will enter the selection and return to the
‘ind’ prompt in the edit sub-menu.
5.4.8 Decimal point position ‘dP’
This defines the position the decimal point in the
numeric display. To enter the function press P
which will reveal the existing decimal point
position. Operating the ▼or ▲button will move
the decimal point to the required position, omit it, or
activate all the decimal points which automatically
provides maximum resolution in the display mode
irrespective of the numeric value.
When positioned as required, operating the E
button will enter the selection and return to the ‘dP’
prompt in the edit sub-menu.
5.4.9 Configuration of bargraph display ‘bAr’
This function contains three sub-functions that
enable the bargraph, justify its position and define
the relationship between the bargraph and the
instrument’s numeric display.
Sub-function ‘b.tYPE’ enables the bargraph to be
left, centre or right justified, or to be turned off.
Sub-functions ‘bArLo’ and ‘bArhi’ define the
listener’s numeric display at which the bargraph
starts and is at full scale.
The ‘bAr’ function may be selected from within the
edit sub-menu by operating the ▼or ▲button.
To enter the function press Pwhich will display the
‘b.tYPE’ sub-function, pressing Pagain will reveal
the existing bargraph justification. The ▼or ▲
button will scroll through the four options, when the
required justification is displayed, pressing Ewill
enter the selection and return the display to the
‘b.tYPE’ prompt in the edit sub-menu from which
‘bArLo’ may be selected using the ▼or ▲button.
‘bArLo’ defines the listener’s numeric display at
which the bargraph starts, to enter the function
press Pwhich will reveal the existing setting. The
display may be changed using the ▼or ▲button
to adjust the flashing digit and the Pbutton to
move control to the next digit. When the required
starting display has been selected, press Eto
return to the ‘bArLo’ prompt in the edit sub-menu
from which the ‘bArHi’ function may be selected.
‘bArHi’ defines the listener’s numeric display at
which the bargraph is full scale, to enter the
function press Pwhich will reveal the existing
setting. The display may be changed using the ▼
or ▲button to adjust the flashing digit and the P
button to move control to the next digit. When the
required display has been selected, press Etwice
to enter the new values and return to the ‘bAr’
prompt in the edit sub-menu.
Note: If the ‘dP’ function has been set to provide
automatic maximum resolution irrespective of the
displayed value, it may be necessary to manually
position the decimal point before adjusting ‘bArLo’
or ‘bArHi’. This can be achieved by repeatedly
operating the Pbutton until the activated decimal
point flashes, the decimal point can then be
positioned using either the ▼or ▲button.
Pressing the Pbutton again will return control to
one of the digits.
5.4.10 Scale numeric display ‘SCALE’
A scaling factor ‘Gain’ and an offset ‘oFFSt’ may
be applied to the fieldbus process variable using
this function, thus allowing the listener to display
the fieldbus process variable in alternative units.

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The ‘SCALE’ function may be selected from within
the edit sub-menu by operating the ▼or ▲button.
To enter the function press Pwhich will display the
‘GAin’ sub-function, pressing Pagain will reveal
the existing gain with one digit flashing. This
flashing digit may be changed by operating the ▼
or ▲ button; when adjusted the Pbutton will move
control to the next digit or to the decimal point
which can be positioned using the ▼or ▲button.
When ‘GAin’ has been set to the required value
operating the Ebutton will enter the selection and
return to the ‘GAin’ prompt in the sub-menu from
where the ‘oFFSt’ function can be selected using
the ▼or ▲button.
To enter the ‘oFFSt’ function press Pwhich will
reveal the existing offset with one digit flashing.
Again the flashing digit may be changed by
operating the ▼or ▲button and the Pbutton will
move control to the next digit or to the decimal
point. When ‘oFFSt’ has been set to the required
value operating the Ebutton will enter the selection
and return to the ‘oFFSt’ prompt in the sub-menu.
Three operations of the Ebutton will return to the
‘Edit’ function in the main configuration menu.
5.4.11 Access code for listener configuration
menu ‘CodE’
Access to the listener configuration menu may be
protected by a four digit security code which must
be entered to gain access. New instruments are
supplied configured with the default code 0000
which disables this protection and allows
unrestricted access to the configuration menu.
To enter a new access code select ‘CodE’ in the
configuration menu by operating the ▼or ▲
button. To enter the function press P,this will
reveal the current access code with one digit
flashing. The code may be changed using the ▼or
▲button to adjust the flashing digit and the P
button to move control to the next digit. When the
required code has been selected, press Eto enter
the selection and return to the ‘CodE’ prompt in the
configuration menu. The revised access code will
be activated when the transmitter is returned to the
display mode.
If the access code is lost please contact BEKA
associates.
5.4.12 Change from fieldbus listener to
fieldbus node ‘tYPE’
This function enables the BA648CF-P to be
conditioned as a fieldbus node or as a fieldbus
listener. To change the function of the instrument
select ‘tYPE’ in the listener configuration menu
using the ▼or ▲button and press Pto enter
which will show that the instrument is configured as
a fieldbus listener.
To change to a fieldbus node press the ▼or ▲
button which will toggle the display to ‘nodE’. To
prevent accidental changes this request must be
confirmed by operating the Pbutton and entering
‘5urE’. The instrument will display ‘0000’ with the
first digit flashing, using the ▼or ▲button set the
flashing digit to ‘5’ and press the Pbutton to move
control to the next digit which should be set to ‘u’.
When the four letters of ‘5urE’ have been entered,
operating the Ebutton will result in the instrument
restarting in the display mode as a fieldbus node.
CAUTION
All the instrument’s listener configuration
information will be lost when it is
changed from a fieldbus listener to a
fieldbus node.
5.4.13 Reset the listener to factory defaults
‘rESEt’
The BA648CF-P listener may be reset to the
factory defaults that are shown below:
Security Code 0000 (disabled)
For each of the eight inputs:
Decimal point XXX.XX
Bar Type Left
Bar lower limit 0.0
Bar Upper limit 100.0
Gain 1.0
Offset 0.0
To reset the BA648CF-P listener select ‘rESEt’ in
the configuration menu by operating the ▼or ▲
button. To enter the function press P,this will
reveal ‘0000’ with the left hand digit flashing. To
prevent accidental use of this function, ‘5urE’ must
be entered to confirm that the instrument is to be
reset.
Using the ▼or ▲button set the flashing digit to ‘5’
and press the Pbutton to move control to the next
digit which should be set to ‘u’. When the four
letters of ‘5urE’ have been entered operating the E
button will reset the BA648CF-P to the factory
defaults. Any existing configuration and
addresses will be lost when the listener is reset.

12
6. MAINTENANCE
6.1 Fault finding during commissioning
If a BA648CF-P fails to function during
commissioning the following procedure should be
followed:
Symptom Cause Check:
No Display Instrument not
correctly
connected or
powered.
9 to 32V between
terminals 1 & 2.
Display shows
‘9.9.9.9.9’ with all
decimal points
flashing; all
bargraph
segments
activated and
bargraph scale
flashing.
Value
over-range Variable source
Decimal point
configuration.
Display shows
‘-9.9.9.9.9’ with
all decimal points
flashing; no
bargraph
segments
activated and
bargraph scale
flashing.
Value
under-range Variable source
Decimal point
configuration
Display
alternates
between value
and the word
‘bAd’. Bargraph
flashes.
Status of fieldbus
variable has a
quality of ‘BAD’
or a fault state is
active.
Display has not
yet received
data.
Variable source
Fieldbus
configuration.
Bargraph scale
flashes. Variable is outside the limits
defined for the
bargraph.
Bargraph
configuration.
All display
segments
activated.
Display is
initialising. This is normal operation, after a
few seconds the
firmware version
will be displayed
prior to entering
the operational
mode.
6.2 Fault finding after commissioning
ENSURE PLANT SAFETY BEFORE
STARTING MAINTENANCE
If a BA648CF-P fails after it has been functioning
correctly, the table shown in section 6.1 may help
to identify the cause of the failure.
If this procedure does not reveal the cause of the
fault, it is recommended that the instrument is
replaced.
6.3 Servicing
We recommend that faulty BA648CF-P Fieldbus
Indicators be returned to BEKA associates or to
our local agent for repair.
6.4 Routine maintenance
The mechanical and electrical condition of the
instrument should be regularly checked. Initially
annual inspections are recommended, but the
inspection frequency should be adjusted to suit the
environmental conditions.
6.5 Guarantee
Instruments which fail within the guarantee period
should be returned to BEKA associates or our local
agent. It is helpful if a brief description of the fault
symptoms is provided.
6.6 Customer comments
BEKA associates is always pleased to receive
comments from customers about our products and
services. All communications are acknowledged
and whenever possible, suggestions are
implemented.

13
7. ACCESSORIES
7.1 Scale marking
BA648CF-P indicators are fitted with a blank
escutcheon around the liquid crystal display. If
specified when the instrument is ordered, this can
be supplied printed with units of measurement and
a scale for the horizontal bargraph.
7.2 Tag number
The BA648CF-P can be supplied with a thermally
printed tag number on the rear panel adjacent to
the terminals.
7.3 BEKA PROFIBUS PA Display – Fieldbus
Interface Guide.
The BEKA PROFIBUS PA Display – Fieldbus
Interface Guide contains commissioning
information for the BA648CF. A copy may be
requested from the BEKA sales office or
downloaded from the BEKA web site at
www.beka.co.uk