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Installation & Maintenance Instructions

BA488CF-F

Installation & Maintenance Instructions

BA488CF-FFOUNDATION™ fieldbus intrinsically safe panel mounting display

Reading OfficeCutbush Park, Danehill, Lower Earley,Reading, Berkshire. RG6 4UT. UK.Tel: +44 (0)118 9311188 Email: info@able.co.uk

Aberdeen OfficeUnit 6 Airside Business Park, Kirkhill Industrial Estate, Dyce, Aberdeen. AB21 0GT. UK.Tel: +44 (0)1224 725999Email: ab@able.co.uk

Internet: www.able.co.uke-procurement: www.247able.comRegistered in England No: 01851002VAT No: GB 417 2481 61

Issue: 131st March 2012

BA488CF-FFOUNDATION™ fieldbus

Intrinsically safePanel mounting display

issue 13

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1. Description1.1 Documentation1.2 Version 2.3 firmware

2. Operation2.1 Controls

3. Intrinsic Safety Certification3.1 ATEX certificate3.2 Zones, gas groups and T rating3.3 Fieldbus connection3.4 External switches3.5 Alarm outputs3.6 Certification label information

4. System Design for Hazardous Area4.1 FISCO Systems4.2 Non FISCO Systems4.3 External switches4.4 Alarm outputs

5. Installation5.1 Location5.2 Installation procedure5.3 EMC

6. Display & Alarm Configuration6.1 Default configuration6.2 Accessing the display configuration

menus6.3 Configurable functions

6.3.1 Screens (Display format)6.3.2 Input settings6.3.3 Tags6.3.4 Units6.3.5 Alarms

6.3.5.1 Alarm Summary6.3.5.2 Alarm Activation6.3.5.3 Alarm Output

6.3.6 Display6.3.6.1 Settings6.3.6.2 Quick Access6.3.6.3 Access Code6.3.6.4 Status Text6.3.6.5 Last Input

6.3.7 Keys6.3.8 Code6.3.9 Unit Info6.3.10 Defaults

6.3.10.1 Display Defaults6.3.10.2 Interface Board

Defaults.6.3.10.3 Revisions 1 & 2

6.4 Quick Access Menu

7. Programming

8. Maintenance8.1 Fault finding during commissioning8.2 Fault finding after commissioning8.3 Servicing8.4 Routine maintenance8.5 Guarantee8.6 Customer comments

9. Accessories9.1 Tag number9.2 FOUNDATION™ fieldbus Interface

Guide.

10. Index

Appendix 1FM Approval for use in the USA

Appendix 2IECEx certification

The BA488CF-F is CE marked to show compliance with theEuropean Explosive Atmospheres Directive 94/9/EC

and the European EMC Directive 2004/108/EC

CONTENTS

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1. DESCRIPTIONThe BA488CF-F FOUNDATION™ fieldbus displayis an intrinsically safe instrument that can displayup to eight FOUNDATION™ fieldbus processvariables, together with their units of measurementand tag information. The instrument is buspowered so no additional power supply is required.

The instrument’s communications protocol isshown on the rear panel. The ‘-F’ order codesuffix also indicates the protocol but is not shownon the instrument certification label. There is analternative version of the fieldbus display, ordercode BA488CF-P for use on Profibus PA networks.

The BA488CF-F FOUNDATION™ fieldbus displaymay be ordered, or configured on-site, withalternative function blocks allowing use with mostFOUNDATION™ fieldbus hosts.

Revision 1One Multiple AnalogueOutput(1 x MAO)

Revision 2Two Input Selectors(2 x IS)

The required Device Description files, which maybe downloaded from either the FieldbusFoundation or the BEKA websites, depend uponwhich BA488CF-F FOUNDATION™ fieldbusdisplay revision is selected.

Eleven selectable standard display formats enableone, two, three, four or eight process variables,some with bargraphs to be displayed on onescreen.

The BA488CF-F FOUNDATION™ fieldbus displaycan be supplied with six optional alarm outputs thatmay be linked to any of the displayed fieldbusvariables. These alarm outputs are locallyactivated from the fieldbus variables and areconfigured via the instrument menu and pushbuttons. They can not be controlled via thefieldbus.

The BA488CF-F has been issued with an EC-TypeExamination Certificate by Notified Body IntertekTesting and Certification Ltd for gas atmosphereswhich has been used to confirm compliance withthe European Potentially Explosive AtmospheresDirective 94/9/EC.

For use in the USA the instrument has intrinsicsafety and nonincendive FM Approval – seeAppendix 1, plus IECEx intrinsic safety approvalfor international applications – see Appendix 2.

Housed in a robust 72 x 144 panel mounting DINenclosure, the BA488CF-F FOUNDATION™fieldbus display has an IP66 front panel and issupplied with a gasket to seal the joint between theinstrument and the panel.

1.1 DocumentationThis instruction manual describes system design,conditioning and installation of the BA488CF-FFOUNDATION™ fieldbus display. For detailedcommissioning information please refer to theFOUNDATION™ fieldbus Interface Guide that canbe downloaded from the BEKA websitewww.beka.co.uk

1.2 Version 2.3 FirmwareThis manual describes the enhanced features ofBA488CF-F FOUNDATION™ fieldbus displaysemploying version 2.3 firmware that was releasedin April 2011 following an interim update to version2.0 in December 2005.

The new features include:

Standard screens increased to 11

Multiple bargraph limits added

Input scaling added

Selectable function blocks added:

Revision 1 1 x MAO (multiple analogue output)

or Revision 22 x IS (Input selector)

Option added to remove status text fromsingle variable screens.

Last variable parameter added to prevent thedisplay of unused inputs.

The instrument’s firmware version can beestablished using the ‘Unit Info’ function in themain configuration menu – see section 6.3.9 of thismanual.

BA488CF-F FOUNDATION™ fieldbus displaysemploying version 2.3 firmware are backwardscompatible with all earlier versions of theinstrument.

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2. OPERATIONFig 1 shows a simplified block diagram of theBA488CF-F FOUNDATION™ fieldbus display.When the optional alarms are not fitted, theinstrument only requires a two-wire connection tothe fieldbus.

How much of the BA488CF-F FOUNDATION™fieldbus display configuration can be performed viathe fieldbus depends upon the instrument versionand the system host. Parameters that can not beconfigured via the fieldbus can be set via the fourfront panel push buttons. Menus enable therequired standard display format to be selectedand the units of measurement, plus tag informationfor each displayed fieldbus variable to be entered.Each fieldbus variable may be individually offsetand scaled, and when a standard screen includinga bargraph is selected, the limits of each bargraphcan be set.

The optional alarms are locally activated from thefieldbus variables and can only be configured andthe setpoints adjusted using the BA488CF-F pushbuttons. The alarms can not be configured orcontrolled via the fielsbus.

Description Files for the BA488CF-FFOUNDATION™ fieldbus display may bedownloaded from either the Fieldbus Foundation orfrom the BEKA associates websites.

Fig 1 Simplified block diagram of BA488CF-F

2.1 ControlsThe user can scroll through the display screens byoperating the ▼ or ▲ push buttons. The numberof screens available depends upon how theBA488CF-F display has been configured. If onefieldbus variable per screen has been configured,eight screens will be present; if four fieldbusvariables per screen have been configured, onlytwo screens will be available.

Irrespective of the number of fieldbus variablesassigned to the BA488CF-F, the instrument alwayshas provision for displaying eight variables.Unassigned inputs are displayed as zero with abad data warning i.e. light digits on a darkbackground. The Last Input parameter allowsunused inputs to be skipped when scrollingthrough the instrument display screens, seesection 6.3.6.5.

If enabled, operating the P and ▲ push buttonssimultaneously activates the Quick Access Menu,allowing the user to adjust the display contrastwithout providing access to any of the otherconfiguration parameters. Additional security maybe provided by an optional access code.

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3. INTRINSIC SAFETY CERTIFICATION3.1 ATEX certificateThe BA488CF-F has been issued with EC-TypeExamination Certificate by Notified Body IntertekTesting and Certification Ltd (ITS) which has beenused to confirm compliance with the EuropeanATEX Directive 94/9/EC. The instrument bears theCommunity Mark and, subject to local codes ofpractice, may be installed in any of the EuropeanEconomic Area (EEA) member countries. ATEXcertificates are also acceptable for installations inSwitzerland.

This manual describes installations which conformwith IEC 60079-14 Electrical installations design,selection and erection. When designing systemsfor installation outside the UK, the local Code ofPractice should be consulted.

3.2 Zones, gas groups and T ratingThe BA488CF-F has been issued with EC TypeExamination certificate ITS04ATEX22779Xconfirming that it complies with the requirementsfor Group II Category 1 G Ex ia IIC T4 Ga(Tamb –40 to 60ºC). When connected to asuitable system the BA488CF-F may be installedin:

Zone 0 explosive gas air mixturecontinuously present.

Zone 1 explosive gas air mixturelikely to occur in normaloperation.

Zone 2 explosive gas air mixture notlikely to occur, and if it does willonly exist for a short time.

Be used with gases in groups:Group A propaneGroup B ethyleneGroup C hydrogen

Having a temperature classification of:T1 450ºCT2 300ºCT3 200ºCT4 135ºC

At an ambient temperature between –40 and+60ºC.

Note: the guaranteed operating temperature rangeof the Fieldbus Display is –20 to +60ºC

This allows the BA488CF-F to be installed in allZones and to be used with most common industrialgases.

Special conditions for safe use in Zone 0In the unlikely event of installation in a Zone 0potentially explosive atmosphere, the BA488CF-FFOUNDATION™ fieldbus display shall beinstalled such that even in the event of rareincidents, an ignition source due to impact orfriction between the aluminium enclosure at therear of the instrument mounting panel andiron/steel is excluded.

3.3 Fieldbus connectionThe BA488CF-F FOUNDATION™ fieldbus displayis powered and communicates via the fieldbus,which is connected to terminals 1 and 2. Theseterminals comply with the Fieldbus IntrinsicallySafe Concept (FISCO) defined in IEC 60079-11which simplifies intrinsic safety system design.

The BA488CF-F may also be connected to nonFISCO compliant fieldbus segments by using theentity concept to assess safety.

Terminals 1 and 2 of the BA488CF-FFOUNDATION™ fieldbus FOUNDATION™fieldbus display are not polarised and have thefollowing safety parameters:

Ui = 17.5V dcIi = 380mA dcPi = 5.32W

For non FISCO compliant segments, the safetyparameters of the power supply or isolatorpowering the fieldbus segment must be equal to orless than these figures.

The maximum equivalent capacitance andinductance at terminals 1 & 2 of the BA488CF-FFieldbus Display are:

Ci = 1nFLi = 8µH

To determine cable parameters for non FISCOcompliant segments, the sum of Ci and Li of all thefield devices should be subtracted from themaximum cable parameters permitted by thedevice powering the fieldbus segment.

3.4 External switchesFor applications requiring operator inputs to bemade by large industrial push buttons, terminalsS1 to S7 facilitate external switches to beconnected to the Fieldbus Display. When externalswitches are connected, the BA488CF-F may beconfigured so that the front panel push buttonscontinue to function or are disabled.

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Terminals S1 to S7 have the following combinedoutput safety parameters:

Uo = 14.7V dcIo = 146.7mA dcPo = 0.58W

The switches and associated wiring connected tothe terminals must comply with the requirementsfor simple apparatus. i.e. the switch must bemechanically activated and have IP20 protection,and both the switch and the wiring must becapable of withstanding a 500V rms insulation testto earth for one minute. Most industrial pushbuttons and wiring satisfy these requirements.

The input safety parameters of terminals S1 to S7are zero, therefore only switches or intrinsicallysafe relays may be connected.

The total maximum permitted cable parameters forall the cables connected to terminals S1 to S7 in aIIC hydrogen gas must be less than:

Co = 0.22µFLo = 0.26mH

Although these parameters are not restrictive, forreliable operation it is recommended that thecables between the fieldbus display and theexternal push buttons are less than 5m long.

3.5 Alarm outputsEach of the six optional alarm outputs is aseparate galvanically isolated solid state switch.The EC-Type Examination Certificate specifies thatunder fault conditions the voltage, current andpower at each switch output will not exceed thosespecified for simple apparatus in section 5.7 ofIEC 60079-11. This allows each of the BA488CF-F alarm outputs to be connected to any intrinsicallysafe circuit protected by a certified Zener barrier orgalvanic isolator providing that the outputparameters of each circuit are less than:

Uo = 28V dcIo = 200mAPo = 0.84W

The maximum equivalent capacitance andinductance of each BA488CF-F alarm output is:

Ci = 40nFLi = 20µH

To determine the maximum permissible cableparameters, Ci and Li must be subtracted from themaximum cable capacitance and inductancespecified by the system certificate of the circuitconnected to the switch.

3.6 Certification Label InformationThe certification label is fitted in a recess on thetop outer surface of the enclosure. It shows theATEX certification information, a statement that theinstrument is a FISCO Field Device, plus BEKAassociates name and location. Non Europeancertification information may also be included.

4. SYSTEM DESIGN FOR HAZARDOUS AREAS

4.1 FISCO SystemsThe BA488CF-F FOUNDATION™ fieldbus displaymay be connected to any FISCO compliantfieldbus segment providing that the power supplyor isolator powering the segment can provide25mA required by the BA488CF-F Display.

Fig 2 shows a typical fieldbus segment. To complywith FISCO requirements, the power supply,terminators, field devices and the interconnectingcables must conform with IEC60079-11.

Fig 2 FISCO fieldbus system

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4.2 Non FISCO SystemsIf the BA488CF-F FOUNDATION™ fieldbusdisplay is to be connected to a fieldbus segmentthat does not comply with FISCO requirements,the safety parameters of the power supply and theBA488CF-F must be compared using the entityconcept.

The maximum output safety parameters of thedevice powering the fieldbus segment must beequal to, or less than, the input safety parametersof terminals 1 & 2 of the BA488CF-FFOUNDATION™ fieldbus display, namely:

Ui = 17.5V dcIi = 380mA dcPi = 5.32W

The maximum permitted cable parameters for thefieldbus segment must be reduced by theequivalent internal capacitance Ci and inductanceLi of the BA488CF-F. The BA488CF-F equivalentcapacitance and inductance are very small andmake little practical difference.

Ci = 1nFLi = 8µH

4.3 External switchesFor applications requiring operator inputs to bemade by large industrial push buttons, terminalsS1 to S7 allow up to six external switches to beconnected to the Fieldbus Display. When externalswitches are connected the front panel pushbuttons may be operated in parallel or disabled –see section 6.3.7

For installation in a hazardous area the switchesand associated wiring must comply with therequirements for simple apparatus. i.e. the switchmust be mechanically activated and have IP20protection, and both the switch and the wiring mustbe capable of withstanding a 500V rms insulationtest to earth for one minute. Most industrial pushbuttons and wiring satisfy these requirements.

Although the allowable cable parameters are large,it is recommended that the cables are less than 5mlong.

If a safe area switch is to be connected to aFieldbus Display located in a hazardous area, theswitch contact must be transferred via a certifiedintrinsically safe relay or a galvanic isolator havingzero output safety parameters as shown in Fig 3.

Fig 3 External push button switch in safe area

4.4 Alarm outputsEach alarm output is a galvanically isolated singlepole solid state switch output as shown in Fig 4.

Fig 4 Equivalent circuit of each switch output

The outputs are polarised and current will only flowin one direction. Odd numbered terminals shouldbe connected to the positive side of the supply.

Ron = 5 + 0.7VRoff = greater than 1M

Note: Because of the series protection diode,some test meters may not detect a closed alarmoutput

WARNINGThese Alarm Outputs should not be usedfor critical safety applications such as anemergency shut down system.

When the BA488CF-F FOUNDATION™ fieldbusdisplay is disconnected from the fieldbus, or thefieldbus is de-energised all the alarm outputs willopen irrespective of how they have beenconfigured.

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5. INSTALLATION

5.1 LocationThe BA488CF-F FOUNDATION™ fieldbus displayis housed in a robust aluminium enclosure with atoughened glass window mounted in a Noryl bezel.The front of the instrument provides IP66protection and a gasket seals the joint between theinstrument enclosure and the panel. Theinstrument may be installed in any panel providingthe environmental limits shown in the specificationare not exceeded.

CAUTIONSpecial conditions apply for installationin Zone 0, see section 3.2

Fig 5 shows the overall dimensions of theBA488CF-F and the panel cut-out. To achieve anIP66 seal between the instrument enclosure andthe panel, the smaller cut-out must be used andthe instrument secured with four panel mountingclips.

The BA488CF-F liquid crystal display hasmaximum contrast when viewed from directlyahead and slightly below the centre line of theinstrument.

Fig 5 BA488CF-F dimensions

5.2 Installation Procedure

a. Insert the BA488CF-F into the instrumentpanel cut-out from the front of the panel.

b. Fix panel mounting clips to opposite sides ofthe instrument and tighten until theinstrument is secure. Four clips are requiredto achieve an IP66 seal between theinstrument enclosure and the panel.

c. Connect the panel wiring to the rear terminalblock(s) as shown in Fig 6. To simplifyinstallation, the terminals are removable sothat panel wiring can be completed beforethe instrument is installed.

Fig 6 Installation and terminal connections

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5.3 EMCThe BA488CF-F complies with the requirements ofthe European EMC Directive 2004/108/EC. Forspecified immunity all wiring should be in screenedtwisted pairs with the screens connected to thepotential equalising network as recommended inIEC 60079-14.

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6. DISPLAY & ALARM CONFIGURATIONIn addition to loading the BA488CF-FFOUNDATION™ fieldbus display DeviceDescription files onto the system host and definingup to eight fieldbus variables that are to bedisplayed, the instrument display and alarms, iffitted, have to be configured. How much of thisconfiguration can be done via the fieldbus dependsupon the instrument version and the system host.Parameters that can not be configured via thefielldbus, may be set via the four front panel pushbuttons

All the display and alarm configuration functionsare contained in an easy to use menu that isshown in Fig 7. Where necessary the sub-menuscontain on-screen prompts to guide the userthrough each adjustment.

When navigating through the configuration menu,the push button(s) should be held until the requiredscreen is displayed.

6.1 Default configurationUnless otherwise requested at the time of ordering,BA488CF-F FOUNDATION™ fieldbus displays willbe supplied configured as follows:

Keys BothDisplay brightness 100%Display contrast 50%Quick access menu OnQuick access menu code 0000Configuration menu access code. 0000Screen Single variableNumber Format AutoAll alarms DisabledAlarm activation Good data onlyAlarm outputs N/CBargraph

Low 0High 100

Input scalingZero offset 0Gain factor 1

Status text OnLast input 8

Revision Revision 2(2 x IS functionblocks)

6.2 Accessing the display configuration menuThroughout this manual push buttons are shown initalics e.g. P E ▼ ▲ and legends displayed bythe instrument are shown within inverted commase.g. 'Enter Access Code'.

Operating the P and E push buttons simultaneouslyaccesses the display configuration menu. If theBA488CF-F is not protected by an access code themain menu will be displayed. If an access codeother than the default code 0000 has already beenentered, the BA488CF-F will request that theaccess code be entered.

Using the ▼ or ▲ button set the first digit of thecode which will be flashing. Pressing P will transfercontrol to the next digit, which should be adjusted inthe same way. When all four digits have been set,pressing the E button will enter the access code.If the code is correct the main menu will bedisplayed, if the code is incorrect ‘Invalid Code’ willbe displayed.

When entering an access code, timeout will occurand the instrument will automatically return to theoperating mode ten seconds after a push buttonwas last operated. In all other menus, timeoutoccurs after sixty seconds.

The structure of the display configuration menu isshown in Fig 7. Navigation is achieved byhighlighting the required function using the ▼ and▲ buttons and then operating the P button todisplay the selected function sub-menu, from whicha further selection or adjustment may be made.Operating the E button moves the display back upone level.

A flashing highlight indicates that an option oralphanumeric character may be selected using the▼ and ▲ buttons and entered using the E button.If only one entry or adjustment can be made in asub-menu, the display will automatically move upone menu level when the adjustment is entered. Ifmore than one adjustment can be made in a sub-menu, the highlight may be moved to the secondvariable using the ▼ or ▲ button after the firstsetting has been entered. Operating the P buttonallows the second variable to be adjusted.

When multiple numeric or alpha characters areadjusted e.g. an alarm setpoint or a tag legend, theadjustment is made one digit at a time using the ▼and ▲ buttons. After the first flashing digit has beenset as required, the flashing highlight can be movedto the next digit by operating the P button. When alldigits have been set, operating the E button willenter the setting.

Following completion of the instrumentconfiguration, the E button should be operated tostep the display back to the main menu. One moreoperation of the E button will then return theBA488CF-F to the operating mode.

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6.3 Configurable functionsThis section provides an explanation of eachconfigurable function and should be read inconjunction with Fig 7.

6.3.1 Screens (Display format)The BA488CF-F can display up to eight fieldbusvariables. These are identified as IN_1 to IN_8.The fieldbus variable that each one represents isdetermined by the BA488CF-F configuration at thefieldbus system host – see the FOUNDATION™fieldbus Interface Guide.

This sub-menu allows one of eleven standarddisplay formats to be selected. The standardformats contain one, two, three, four or eightfieldbus variables some with bargraphs as shownbelow.

The ‘Text Display’ option which enabled customformats to be created is depreciated i.e. stillavailable but no longer actively supported.

One variable

Two variables

Four variables

Eight variables

One variable + horizontal bargraph

Two variables + horizontal bargraphs

One variable + vertical bargraph

Two variables + vertical bargraphs

Three variables + vertical bargraphs

Four variables + vertical bargraphs

Eight variables + horizontal bargraphs

6.3.2 Input SettingsNote: Only included in Revision 1 instruments. Omittedfrom Revision 2 instruments because these parametercan be easily configured in the Display TransducerBlock.

The Input Setting function is divided into twogroups of sub-functions. The first, ‘BarLimits Src’is included to maintain backwards compatible withearlier firmware issues in which fieldbus variablesIN_7 and IN_8 were used to define all thebargraph limits. This reduced the number offieldbus variables that could be displayed with

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bargraphs from eight to six.Version 2.3 firmware includes the improved ‘PerInput’ option that enables the lower and upperlimits of a bargraph for each of the eight fieldbusvariables to be defined via the front panel pushbuttons. It is recommended that ‘Per Input’ optionbe used for new installations.

In addition to defining individual limits for up toeight bargraphs, the second group of sub-functionsenables the decimal point position for each displayto be defined. Each of the eight fieldbus inputsmay also be offset and scaled before beingdisplayed which allows variables to be displayed inalternative units of measurement.

Display = (Gain x Fieldbus variable) + Offset

The sub-functions for each input are:

‘Offset’ Adds a positive or negative offset tothe fieldbus variable before it isdisplayed.

‘Gain’ Multiplies the fieldbus variable by afactor before it is displayed.

‘Bar Lo’ Defines the bargraph lower limit

‘Bar Hi’ Defines the bargraph higher limit

‘Format’ Defines the position of the displayeddecimal point.Six options are available:

Auto: Max resolution with selecteddisplay format.

4 DP 4 digits on right of decimal point3 DP 3 digits on right of decimal point2 DP 2 digits on right of decimal point1 DP 1 digit on right of decimal point0 DP No decimal point

The total number of display digits availabledepends upon the display screen selected – see6.3.1

Standard Screen Description Digits

1 1 variable 5, 7, 11 or 17*2 2 variables 73 4 variables 54 8 variables 55 1 variable + H bar 5, 7, 11 or 17*6 2 variables + H bars 77 1 variable + V bar 68 2 variables +V bars 49 3 variables + V bars 6

10 4 variables + V bars 411 8 variables + H bars 5

* Font automatically resizes in auto mode

If a negative number is likely to be displayed, adigit must be allocated for the negative sign. If thedisplay overanges all the digits will display ‘?’.

For all options leading zeros are automaticallysuppressed.

6.3.3 TagsNote: Only included in Revision 1 instruments. Omittedfrom Revision 2 instruments because tags can be easilydefined in the Display Transducer Block.

Each of the eight fieldbus variables may bedisplayed with an individual tag that can contain upto sixteen alphanumeric characters. This menuallows these tags to be entered. After selectingthe required variable, the tag legend is enteredcharacter by character using the ▼ and ▲ pushbuttons. Numbers, upper & lower case letters andsymbols are available.

6.3.4 UnitsNote: Only included in Revision 1 instruments. Omittedfrom Revision 2 instruments because units ofmeasurement can be easily defined in the DisplayTransducer Block.

Each of the eight fieldbus variables may bedisplayed with units of measurement that cancontain up to eight alphanumeric characters. Thismenu allows these units of measurement to beentered. After selecting the required variable, theunit of measurement is entered character bycharacter using the ▼ and ▲ push-buttons.Numbers, upper & lower case letters and symbolsare available.

6.3.5 AlarmsNote: Alarm menus are only included when theBA488CF-F is fitted with optional alarm outputs.Outputs are locally activated from the fieldbusvariables and are configured via the instrumentmenus and push buttons. They can not becontrolled via the fieldbus.

Each of the six alarms may be linked to any one ofthe eight fieldbus variables displayed by theBA488CF-F. Each alarm output can beconditioned to function as a high or a low alarm, oras a combined high and low alarm. The output canbe conditioned as normally open ‘N/O’, or normallyclosed ‘N/C’ in the non-alarm condition.Irrespective of settings alarm outputs will be openwhen the instrument is not powered from thefieldbus.When an alarm is activated, the associatedfieldbus variable display flashes, i.e. alternatesbetween dark figures on a light background andlight figures on a dark background.

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There are eight alarm-conditioning sub-menus.

6.3.5.1 Alarm summaryShows to which fieldbus variable each alarm islinked and how each alarm has been conditionedi.e. high, low, or combined high & low alarm withnormally open or closed output. No adjustmentscan be made in this sub-menu.

6.3.5.2 Alarm activationFieldbus variables that have not been validated aredisplayed with dark characters on a lightbackground, and some screen formats alsocontain a status indication. This sub-menu allowsthe alarm outputs to be conditioned so that theyonly operate with validated fieldbus data, or tooperate irrespective of data validity.

6.3.5.3 Alarm outputThere is a separate sub-menu for each of the sixalarm outputs; these link the alarm to one of thedisplayed fieldbus variables and define the alarmfunction and the setpoints.

To link the alarm to a displayed variable, positionthe cursor over the ‘IN_n’ field, press P and usingthe ▼ or ▲ button select the required input source.Enter the selection by pressing the E button.

Each alarm output can be N/O or N/C in the non-alarm condition. To change the setting, positionthe highlight over the ‘N/O’ or ‘N/C’ field, press Pand use the ▼ or ▲ button to toggle the setting.Enter the selection by pressing the E button.

Each alarm has three functions that can beindependently enabled to condition the output as alow or high alarm, or as a combined low and highalarm, either with or without hysteresis.

The required functions can be individually enabledby positioning the highlight over the Enb/Dis(Enabled/Disabled) column, pressing P andtoggling the function to the required state, thenentering the selection by pressing the E button.

Alarm setpoints are entered digit by digit. Placethe highlight over the setpoint to be adjusted andpress P; the flashing digit to be adjusted may thenbe selected by again pressing P. When all thedigits have been adjusted, operating the E buttonenters the value and moves the menu up onelevel.

The function of all alarms may be reviewed fromthe alarm summary menu - see 6.3.5.1.

6.3.6 Display6.3.6.1 SettingsThe backlight brilliance and display contrast areadjustable from this sub-menu.

6.3.6.2 Quick AccessThis sub-menu enables the Quick Access Menuwhich is described in sections 2.1 & 6.4 Whenenabled, an operator can adjust the displaycontrast and backlight brilliance without havingaccess to any other conditioning menus.

6.3.6.3 Access CodeDefines a four digit alphanumeric code that mustbe entered to gain access to the Quick AccessMenu. Alpha characters are case sensitive.Default code 0000 allows direct access without acode.

6.3.6.4 Status TextThe two single variable screens 1 and 4 will showthe status of the FOUNDATION™ fieldbus variableas ‘Good’ or ‘Bad’ if the Status Text function isactivated.

6.3.6.5 Last InputThis function allows the maximum number ofFOUNDATION™ fieldbus variables to be definedso that unused inputs are skipped when thedisplay is scrolled in the operating mode.

6.3.7 KeysThe function of the front panel push buttons maybe transferred to the six optional external pushbuttons, with or without disabling the BA488CF-Ffront panel push buttons. The table below showsthe function of the BA488CF-F front panel and theexternal push buttons for each of the four optionsthat may be selected in the Keys sub-menu.

For applications where the instrument is onlydisplaying 1, 2, 3, 4 or 8 variables on a singlescreen, it is recommended that external buttonsare selected but not fitted. This will disable theinstrument front panel buttons, but still provideaccess to the configuration menu, which may beprotected by a security code.

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6.3.8 CodeDefines the four digit alphanumeric code that mustbe entered to gain access to the instrumentconfiguration menus. Alpha characters are casesensitive. Default code 0000 allows direct accesswithout a code.

6.3.9 Unit InfoDisplays the instrument model number and thefirmware version.

6.3.10 DefaultsThis function enables the display and interfaceboard factory defaults to be restored. The functionblocks (Revision 1 or 2) should be selected to suitthe system host.

6.3.10.1 Display DefaultsThis function restores the display defaults definedin section 6.1.

CAUTIONExisting settings can not be recoveredafter this function has been used.

6.3.10.2 Interface Board DefaultsThis function restores the Fieldbus Interface Boardfactory defaults.

CAUTIONDo not use this function when theBA488CF-F is connected to anoperational fieldbus, as communicationwill be terminated.

6.3.10.3 Revisions 1 and 2Unless specified at the time of ordering, BA488CF-F FOUNDATION™ fieldbus displays will besupplied as Revision 2 instruments. i.e. two inputselector function blocks (2 x IS), but it can easilybe converted to a Revision 1 instrument using theDefault menu. i.e one multiple analogue outputfunction block (1 x MAO).

The BA488CF-F FOUNDATION™ fieldbus displayrevision should be chosen so that the fieldbusfunction blocks selected are supported by thesystem host.

To change the BA488CF-F FOUNDATION™fieldbus display revision, highlight the requiredrevision in the ‘Restore Defaults’ menu and followthe screen prompts until ‘Defaults Loaded Nowpower cycle the unit’ is displayed. To completethe installation remove the BA488CF-F powersupply for a few seconds, when power is restoredthe instrument will restart with the selectedrevision.

6.4 Quick Access MenuThe Quick Access Menu allows an operator toadjust the backlight brilliance and the displaycontrast without having access to the otherconfiguration parameters.

The quick access menu is accessed by operatingthe P and ▲ push buttons simultaneously. If theQuick Access Menu is not protected by an accesscode the contrast and brilliance controls will bedisplayed immediately. If an access code otherthan the default code 0000 has already beenentered, the BA488CF-F will request that theaccess code be entered.

The backlight brilliance is adjusted using the ▼and ▲ push buttons. Operating the P push buttonwill transfer control to the display contrastadjustment. When both are set as required,operating the E button will store both settings andreturn the instrument to the operating mode.

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7. PROGRAMMINGThe ‘Text Display’ option which enabled customformats to be created is depreciated i.e. stillavailable but no longer actively supported.

8. MAINTENANCE

8.1 Fault finding during commissioningIf a BA488CF-F FOUNDATION™ fieldbus displayfails to function during commissioning the followingprocedure should be followed:

Symptom Cause Check:No Display Fieldbus not

powered9 to 17.5Vbetween

terminals 1 & 2.

No variables Fieldbus notconfigured

BA488CF-F doesnot have correct

protocol

Instrumentconfiguration at

host

That theBA488CF-F

protocol is thesame as the

fieldbus.i.e. Fieldbus

Foundation orProfibus PA.

Wrong variabledisplayed

Wrong screenselected

Other screens byoperating Up or

Down buttonDisplay shows

‘?????’Display

OverangeNumber Format

see section 6.3.2No backlight Brilliance turned

downSetting in display

menuLow or excessive

contrastIncorrect contrast

settingSetting in display

menuDisplayedvariable isinverted

i.e. light digits ondark background

Variable has‘bad’ status

Configurationand instrument

supplyingvariable

Displayedvariable isflashing

Associated alarmhas beenactivated

Setpoints

Bargraph onstandard displayformat is shown

dotted

Displayedfieldbus variable

is outsidebargraph limits or

data is ‘bad’

Bargraph limitssee section 6.3.2

8.2 Fault finding after commissioning

ENSURE PLANT SAFETY BEFORESTARTING MAINTENANCE

Live maintenance is permitted onintrinsically safe equipment installed in ahazardous area, but only certified testequipment should be used unless a gasclearance certificate is available.

If a BA488CF-F fails after it has been functioningcorrectly, the table shown in section 8.1 may helpto identify the cause of the failure.

If this procedure does not reveal the cause of thefault, it is recommended that the instrument isreplaced.

8.3 ServicingWe recommend that faulty BA488CF-FFOUNDATION™ fieldbus displays are returned toBEKA associates or to our local agent for repair.

8.4 Routine maintenanceThe mechanical and electrical condition of theinstrument should be regularly checked. Initiallyannual inspections are recommended, althoughthe inspection frequency should be adjusted to suitthe environmental conditions.

8.5 GuaranteeInstruments which fail within the guarantee periodshould be returned to BEKA associates or our localagent. It is helpful if a brief description of the faultsymptoms is provided.

8.6 Customer commentsBEKA associates is always pleased to receivecomments from customers about our products andservices. All communications are acknowledgedand whenever possible, suggestions areimplemented.

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9. ACCESSORIES

9.1 Tag numberThe BA488CF-F can be supplied with a thermallyprinted tag number on the rear panel. This tagnumber is not visible from the front of theinstrument after installation.

9.2 FOUNDATION™ fieldbus Interface GuideThe BEKA FOUNDATION™ fieldbus InterfaceGuide which may be downloaded from the BEKAweb site at www.beka.co.uk contains conditioninginformation for all BEKA FOUNDATION™ fieldbusproducts.

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10. INDEX

Subject Section

Alarms 6.3.5Activation 6.3.5.2Output 3.5; 6.3.5.3; 4.4Summary 6.3.5.1

ATEX Directive 3.1

Backlight 6.3.6.1Bargraph Limits 6.3.2

CertificatesEC-Type Examination 3.1Label 3.6

Configuration menu Fig 7Controls 2.1Code 6.3.8

Decimal points 6.3.2Default settings 6.1; 6.3.10Display 6.3.6

Access code 6.3.6.3Settings 6.3.6.1Quick access 6.3.6.2; 6.4

EMC 5.3External switches 3.4; 4.3; 6.3.7

Fault findingDuring commissioning 8.1After commissioning 8.2

FieldbusConnection 3.3Interface Guide 9.3Revisions 1 & 2 6.3.10.3

FISCO 3.3; 4.1FOUNDATION™ fieldbus 1; 2FM Approval Appendix 1

Gas groups 3.2; Appendix 1; 2Guarantee 8.5

IECEx Certification Appendix 2Input Scaling 6.3.2Installation 5.Intrinsic safety 3; Appendix 1; 2

Keys 6.3.7

Last input 6.3.6.4Location 5.1

Appendix 1; 2Maintenance 8.

Routine 8.4

Subject Section

Notified Body 1; 3.1Number Format 6.3.2

Programming 7.Guide 7; 9.2

Profibus PA 1

Quick access menu 6.3.6.2; 6.4

Revisions 1 & 2 1; 6.3.10.3

Servicing 8.3Screens (display format) 6.3.1Status text 6.3.6.4

Tags 6.3.3Tag number 9.1T rating 3.2; Appendix 1; 2Terminal numbers Fig 6

Units (of measurement) 6.3.4Unit Info (firmware version) 6.3.9

Zones 3.2; Appendix 1; 2

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APPENDIX 1FM approval for use in USA

A1.0 Factory Mutual ApprovalFor installations in the USA, the BA488CF-FFOUNDATION™ fieldbus display and optionalalarms have been approved intrinsically safe andnonincendive by FM Approvals, projectidentification 3022546. Copies of the Certificate ofCompliance are available from BEKA associates.

A1.1 Intrinsic safety approvalThe BA488CF-F is approved to the FM Class 3610intrinsic safety standard for use in indoorhazardous (classified) locations. Installations mustcomply with BEKA associates Control DrawingCI480-17, which is attached to this Appendix,ANSI/ISA RP12.06.01 ‘Installation of IntrinsicallySafe Systems for Hazardous (Classified)Locations’ and with the National Electrical CodeANSI/NFPA70.

The BA488CF-F has a T4 rating at ambienttemperatures up to +60oC and may be used withthe following gases and dusts:

Intrinsic SafetyDivision 1 or 2

Class I Group A & B Group C Group D

Zone 0, 1 or 2Class 1 Group IIC Group IIB Group IIA

The FM entity parameters are identical to theATEX parameters and, like the ATEX certification,confirm that terminals 1 & 2 of the BA488CF-Fcomply with the requirements for a FISCO FieldDevice specified in IEC60079-27. The intrinsicallysafe circuits shown in Figs 2 and 3 of this manualmay therefore be used for installations in the USA,providing the fieldbus power supply, terminators,Zener barriers and galvanic isolators are FMApproved and comply with BEKA associatesControl Drawing CI480-17. The FM Approval alsoallows the BA488CF-F to be connected to non-FISCO systems using the entity concept – seesection 4.2 of this manual.

A1.2 Nonincendive approvalThe BA488CF-F FOUNDATION™ fieldbus displayis Class 3611 nonincendive approved by FactoryMutual allowing it to be installed in Division 2indoor hazardous (classified) locations without theneed for Zener barriers or galvanic isolators.Installations must comply with the BEKAassociates Control Drawing CI480-18, which isattached to this Appendix, and with the NationalElectrical Code ANSI/NFPA70.

The FM Nonincendive Approval also allows theinstrument to be connected to any FNICOcompliant fieldbus segment powered by FMApproved Associated Nonincendive Field WiringApparatus.

The BA488CF-F has a T4 rating at ambienttemperatures up to +60oC and may be used withthe following gases and dusts:

NonincendiveDivision 2

Class I Group A & B Group C Group D

Zone 2Class I Group IIC Group IIB Group IIA

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25

26

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APPENDIX 2IECEx Certification

A2.0 The IECEx Certification SchemeIECEx is a global certification scheme forexplosion protected products which aims toharmonise international certification standards.For additional information about the IECExcertification scheme and to view the BEKAassociate certificates, please visit www.iecex.com

A2.1 IECEx Certificate of ConformityThe BA488CF-F Fieldbus Display has been issuedwith an IECEx Certificate of Conformity numberIECEx ITS 05.0007X which specifies the followingcertification code and marking:

For gas Ex ia IIC T4 GaTa = -40°C to 60°C

The specified intrinsic safety parameters areidentical to the ATEX parameters and confirm thatterminals 1 & 2 comply with the requirements for aFISCO Field Device specified in IEC 60079-11.

The IECEx certificate may be downloaded fromwww.beka.co.uk, www.iecex.com or requestedfrom the BEKA sales office.

A2.2 InstallationAs the IECEx and ATEX certifications specifyidentical safety parameters and installationrequirements for both are defined byIEC 60079-14, the ATEX installation requirementsspecified in sections 3.2 to 5.3 may also be usedfor IECEx installations. The local code of practiceshould also be consulted.

Special conditions for safe use in Zone 0In the unlikely event of installation in a Zone 0potentially explosive atmosphere, the BA488CF-FFOUNDATION™ fieldbus display shall beinstalled such that even in the event of rareincidents, an ignition source due to impact orfriction between the aluminium enclosure at therear of the instrument mounting panel andiron/steel is excluded.