Chapter4 Commissioning Wireless Devices

8/18/2019 Chapter4 Commissioning Wireless Devices

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Chapter 4Chapter 4

Commissioning WirelessDevices


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Field Communicator Field Communicator A Field Communicator is used to configure HART

devices. WirelessHART devices are preconfiguredusing the same tools and methods used on wiredHART devices. However, WirelessHART devicesrequire the additional configuration of the Join e!and "etwor# $% to &oin the correct wireless networ#.

A device uses the "etwor# $% to determine whichwireless networ# to &oin in a large installationspanning multiple process areas. 'nce the devicehas heard one or more neigh(ors, it uses the Joine! to encr!pt the &oin messages e)changed withthe networ# manager.

The networ# manager, in turn, authenticates thedevice and incorporates the device into the networ#.


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Connecting a Field Communicator to aConnecting a Field Communicator to aWireless DeviceWireless Device

The Field Communicator connects

to wireless devices through thedevices* F+ frequenc!-shift#e!ing communication terminals.

The Field Communicator connectsdirectl! to the communicationterminals on a wireless device.

'nce connected, the fieldcommunicator automaticall! pollsfor connected devices using theselected polling options.


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HART Online Menu and DeviceHART Online Menu and DeviceDashboard Online Menu Dashboard Online Menu

With man! devices, an online menu

that appears once a deviceconnection has (een esta(lished.

This menu displa!s critical processinformation that is continuousl!updated, including device setup,primar! varia(le /0, analog output

A', /0 lower range value 1R0and /0 upper range value 2R0.

%epending on the device description,the first online screen ma! (e astandard HART menu or a %evice%ash(oard menu.

For WirelessHART devices, "etwor#$% and Join e! are set within theConfigure menu.


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14! Wireless "ate#a$ %&plorer 'age14! Wireless "ate#a$ %&plorer 'age $f a wireless device was configured with

the "etwor# $% and Join e!, andsufficient time for networ# polling haspassed, the device should (e connectedto the networ#. To verif! connectivit!, theuser should open the gatewa!*s integralwe( interface and navigate to the3)plorer page.

This page will displa! the transmitter*sHART tag, /rimar! 0aria(le /0,+econdar! 0aria(le +0, Tertiar!0aria(le T0, 4uaternar! 0aria(le 40and 2pdate Rate.

A green status indicator means that thedevice is wor#ing properl!. A red indicatormeans that there is a pro(lem with eitherthe device or its communication path.


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14! Wireless "ate#a$ (et#or) *ettings 'age14! Wireless "ate#a$ (et#or) *ettings 'age

The most common cause of

connection pro(lems is incorrectconfiguration of the "etwor# $% andJoin e!. The "etwor# $% and Joine! in the device (oth must matchthat of the gatewa!.

The "etwor# $% and Join e! ma! (eo(tained from the gatewa! on the+etup5"etwor#5+ettings page of thewe( interface as shown.

The "etwor# $% and Join e! for theentire networ# can (e changed from

this page6 the method descri(ed in theprevious section a FieldCommunicator is used for a device &oining an e)isting wireless networ#.


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+ntegration o, Wireless (et#or) #ith DC* *$stem+ntegration o, Wireless (et#or) #ith DC* *$stem

Wireless networ#s are

integrated into plantautomation s!stemsthrough the gatewa!.+everal protocols including7od(us, '/C, and HART-$/ are often supported.

Connecting the wirelessnetwor# to the plantautomation s!stem ma! (eachieved in a wide variet!of wa!s with greatl!var!ing levels of

integration. An e)ample ofa full! integrated setup isillustrated in this figure.


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Wireless +O (et#or) in an %&plorer -ie# Wireless +O (et#or) in an %&plorer -ie# $n small networ#s, the gatewa! should (e

located near the center of the networ#. Forlarge networ#s or applications that requirethe gatewa! to (e mounted inside a controlroom or rac# room with remote accesspoints, it is (est practice to (uild the initialnetwor# around the location of the accesspoints. The networ# can then (e e)pandedto reach remote areas of the process unit.This approach will provide a solidfoundation on which to e)pand the networ#

$n one e)ample of a full! integrateds!stems, the Wireless $8' "etwor#appears under the Control "etwor# in an3)plorer view and can support up to 9:;Wireless


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Wireless Reconcile +.O Dialog Wireless Reconcile +.O Dialog 'nce a wireless networ# is

integrated into a hosts!stem, the ne)t step is toconnect the wirelessdevices with the controlapplications. This can (eachieved in a large num(erof wa!s. For e)ample, this

is achieved with the=Reconcile $8'> procedure.

Reconcile $8' lin#s wirelessdevices with thoseconfigured in the hosts!stem data(ase. The host

applications then accessthose devices and theirdata points via thedata(ase configuration.


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(et#or) Overvie# Displa$ (et#or) Overvie# Displa$ The WirelessHART gatewa! is the

primar! interface forcommunicating with networ#devices and host applications.

The gatewa! collects andmaintains cached responsemessages from all devices in the

networ#.

The WirelessHART gatewa! isaccessed through we( pages.These we( pages provide accessto a wide range of diagnosticsinformation, and with the right

login credentials to a limited set ofconfiguration capa(ilities. Anoverview of the gatewa!*sdiagnostics is shown


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Device *tates in the (et#or) Device *tates in the (et#or) The networ# overview displa!

provides summar! informationon devices connected, devicesreporting power failures,devices with naming pro(lemsand other top-leveldiagnostics.

7ore detailed information can(e found on devices and &oinfailures as well as other items.This figure shows the overallstate of all the devices in thenetwor#.


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(et#or) *tatistics Displa$ Another important

diagnostic screen isnetwor# statistics.

"etwor# statistics show thetotal num(er of transmits,receives, (urst messages

and lost pac#ets across theentire networ#.

An e)ample of the networ#statistics displa! is shownin this figure


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Host *tatisticsHost *tatistics "etwor# statistics

(etween the gatewa!and the host s!stem areanother importantdiagnostic.

This figure shows the

2ser %atagram /rotocol2%/ networ# statistics(etween the gatewa!and the host s!stem. Theother host statistics arenot shown


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Delta- Diagnostics An important measure of wireless

and wired networ#s is the host*sa(ilit! to monitor and diagnose theoverall health of the networ#.

The %iagnostics view supported (!the control s!stem is a startingpoint to diagnose nodescontrollers and wor#stations andsu(s!stems for $' access in thecontrol s!stem.

An e)ample of how pro(lemsrelated to wireless devices arereported in the diagnostics view isshown in this e)ample where the

Fisher %0C?;;; Control 0alveassigned to Channel 9; has 1oopCurrent Fi)ed


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Device Communication *tatisticsDevice Communication *tatistics

The screen shown in thisfigure is launched from thediagnostic view.

The gatewa!communication statisticswith a valve are shown in

this e)ample.


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Device Manager Asset 7anagement +uite A7+

%evice 7anager is an applicationthat allows users to view andconfigure wireless devices online ina wireless networ#.

Control s!stem applications suchas A7+ %evice 7anager are often

used as an alternative or in additionto handheld field communicator

@oth %evice 7anager and thewireless networ# could (eintegrated with the host s!stem, inwhich %evice 7anager wouldaccess the devices through the

host. This figure shows a wirelessnetwor# hierarch! in %evice7anager.


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Device Diagnostics / D-C 0!! -alve Displa$ Device Diagnostics / D-C 0!! -alve Displa$

For a wireless device to &oin a

gatewa!s self-organiBingnetwor#, it must first (eprovisioned configured forthat networ#. 'nceprovisioned, the wirelessdevice &oins the networ# and

appears in %evice 7anager.

To diagnose the device it isonl! necessar! to select thedevice and proceed to thediagnostics displa!. This

figure shows an e)ample ofthe diagnostics displa! for awireless Fisher %0C ?:;;device.


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The Wi-Anal!s tool accepts

securit! #e!s through user inputand uses this #e! to decodemessages from the Wi-Htestsuite designed to e)erciseWirelessHART devices, thusfacilitating complianceassessment.

These messages could (e thoseintended for the Wi-Anal!s tool,or legitimate WirelessHARTcommands from the Wi-HTestsuite to the device that assign#e!s to the device.

The Wi-Anal!s suite will use the#e!s it possesses to authenticateor decr!pt. 7essages that fail areindicated with different colors.


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%&ercise Device Diagnostics%&ercise Device Diagnostics

This wor#shop provides several e)ercises that will show the diagnostic information that is

availa(le from a wireless networ#. $n this wor#shop we loo# at diagnostics information from ofa wireless networ#. $t is assumed that the wireless networ# is alread! integrated into thecontrol s!stem and the devices are integrated with the control modules.

+tep 9 To launch %elta0 diagnostics view clic# +tart D %elta0 D 'perator D %iagnostics.

+tep : 3)pand the following nodes in sequence Control "etwor#, Controller n"ode, Assigned Wireless $8', Wireless


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'rocess Device Diagnostics'rocess Device Diagnostics

This wor#shop is designed to illustrate diagnostic information that is availa(le from a wireless

networ#. An interface used in the wor#shop is shown (elow.


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%&ercise Commissioning Wireless Devices%&ercise Commissioning Wireless Devices

This wor#shop provides several e)ercises that will illustrate the steps to add a new field

device to a wireless networ#. $n this wor#shop a new wireless device is added to the controls!stem and the measurement it provides is added to a control module. $t is assumed thatthe wireless gatewa! has (een added to the control s!stem 1A" and assigned to thecontroller.

+tep 9 Configure a new wireless device using a field communicator. 3na(le the (urstmode to pu(lish data. /ower it on and let it &oin the wireless networ#.

+tep : $n the control s!stem e)plorer view of field devices, open the Reconcile $8' dialog(o), find the new device and, drag and drop it to an unused channel.

+tep E Create a new control module and, assign it to the controller. Add an A$ function(loc# and assign its $'G$" to the tag of the channel assigned to the new device.

+tep %ownload the controller.

+tep 'pen the control module online and o(serve that the value of the A$ (loc#periodicall! updates. The updates come from the (urst data of the new device.


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'rocess Commissioning Wireless Devices'rocess Commissioning Wireless Devices

This wor#shop is designed to illustrate features that are t!picall! availa(le in commercial

products to commission a wireless networ#. An e)ample tree view used in the wor#shopis shown (elow.

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Chapter4 Commissioning Wireless Devices