Physical Device Revision 2.1Web Server Revision 2.3.19
NOTICE
Read this manual before working with the product. For personal andsystem safety, andforoptimum product performance, make sure you thoroughly understand the contentsbeforeinstalling, using, or maintaining this product.
Within the United States, Emerson Process Management hastwotoll-free assistance numbers:
Customer Central
Technical support, quoting, and order-related questions.1-800-999-9307 (7:00 am to 7:00pm CST)
North American ResponseCenter
Equipment service needs.1-800-654-7768 (24 hours—includes Canada)Outside of the United States, contact your local Rosemount representative.
Theproducts describedin this documentare NOTdesigned for nuclear-qualifiedapplications. Using non-nuclear qualified products inapplicationsthatrequire nuclear-qualified hardware or productsmay cause inaccurate readings.
Forinformationon Rosemountnuclear-qualified products, contact your local Rosemount Sales Representative.
Rosemount and the Rosemount logotypeare registered trademarks of Rosemount Inc.PlantWeb is a registered trademarkof one ofthe Emerson Process Management group ofcompanies.Honeywell is a registered trademark of Honeywell Inc.All other marks are the propertyof their respective owners.
OUNDATION
FModbusis aregistered trademark of SchneiderAutomation,Inc.Cover Photo: 3402_housing_2-1.tif
Thismanual provides installation and troubleshooting instructions for the Rosemount 3420 Fieldbus Interface Module (FIM).
Thesectionsinthis manual provide information on installing,operating, and maintaining theRosemount 3420 Fieldbus Interface Module.
•Section2: Installation contains mechanical and electrical installation instructions.
•Section3: Configuration provides instructionon commissioning and operating the Rosemount 3420 Fieldbus Interface Module.Information on software functions, configuration parameters, andonline variablesare also included.
•Section4: Operation and Maintenance containsoperationand maintenance techniques.
•Section5: Troubleshooting provides troubleshooting techniques for the most common operations.
•AppendixA: Reference Data supplies reference and specification data,as wellas ordering information.
•AppendixB: Approval Information contains intrinsic safetyapprovalinformation, European ATEXdirective information,andapproval.
•AppendixC: Fieldbus Status Valuescontains fieldbus function block output status codes.
•AppendixD: Modbus Configuration in Honeywell
•AppendixE: Integer Scaling containsinformation on configuring andscaling integers.
•AppendixF: AMS3420
•AppendixG: CSI 9120 MachineryHealthTransmitter
™
Suite: Intelligent Device Manager withRosemount
®
TDC APM/HPM
Service andSupport
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To expedite the return processoutside of the United States, contact the nearest Rosemount representative.
Within the United States,callthe Rosemount National Response Center using the 1-800-654-RSMT(7768) toll-free number. Thiscenter, available 24 hoursa day, will assist you with any needed information or materials.
Thecenter will ask for product model and serial numbers, andwillprovide a Return Material Authorization (RMA) number. The center will also ask for the process materialto which the product waslast exposed.
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RosemountNational Response Center representatives willexplain the additionalinformation and procedures necessary toreturn goods exposed tohazardous substance can avoid injury if theyare informed of and understandthe hazard. If the product being returned was exposed to a hazardoussubstance as defined byOSHA, a copy of the required Material SafetyData Sheet (MSDS) for each hazardous substance identified mustbe included withthe returned goods.
Dimensional drawings are included in AppendixA: Reference Data. A PC withan Ethernet port is required toperformthe initial configuration of the device.
Instructionsand proceduresin this section may requirespecial precautionstoensure the safety of the personnel performing the operations. Information thatraises potential safety issuesis indicated by a warning symbol(). Please refer tothe following safety messagesbefore performing an operation preceded by this symbol.
Explosions couldresult indeath or seriousinjury:
•Do not remove the transmitter from its mountingenclosure inexplosive atmospheres when the circuit is live.
•Verify that the operatingatmosphere of the transmitter is consistentwith the appropriate hazardous locations certifications.
Electrical shock could cause death orserious injury. Ifthe device is installed in ahigh-voltage environment and afault condition or installation erroroccurs,high voltage maybe present on transmitter leads and terminals.
•Use extreme caution when makingcontact with the leads andterminals.
Failure tofollow these installation guidelines could result in deathor seriousinjury:
•Make sure only qualified personnel performthe installation.
General Considerations
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TheRosemount 3420 may be mounted in anyGeneral Purpose location.Besure the covers are secured tightly toprevent exposure of the electronics tomoisture and contamination.
CONFIGURATION NOTE
Before connecting the fieldbussegments to the Rosemount 3420, you mustfirstconnect a PC and configure the Rosemount 3420. Once the PlugandPlay features have been set up youcanthen make the final connectionof the segmentsto theRosemount 3420 terminalstrip.
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System Requirements
Operating System:
•Windows2000, service pack 4
•Windows XP (Home or Professional), service pack 1
•Windows 2003
•Windows Vista(or newer)
If the operatingsystem requirementis not met,the setup willdisplay a message and stop.
Applications:
•Internet Explorer 6.0
•Sun Microsystems
™
Java™ Runtime 1.4.1
(or newer)
If the user manual isbeing installed,the followingapplication isalsorequired:
•Adobe
®
Acrobat® 5.0
(or newer)
If the Network Assistantor OPC Proxy Setup utilities are beinginstalled,the followingapplication is also required:
•.NET Framework1.1
If anyof the above requirements are notmet, the setup discwill install the following:
•Typicalinstallation (allfeatures, but none of the above installed): 35 mb
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INSTALLATION PROCEDURE
Rosemount 3420
Software Installation
Toprepare a PC tocommunicate withthe 3420,insert the Setup Assistant & SupportFiles CD thatcame withyour 3420. Follow thedirections in the installation windows to install the desiredcomponents.
At the
Setup Type
screen, select
Complete
or
Custom
depending on your specific needs. Customsetup allowsyou tochoose whether to installthe following options:
When thisfeature isselected, setup willinstall any additional software
3420 User Interface
3420 Reference Manual
Network Assistant
OPC Client Runtime
OPC Proxy Setup
required to use this PCas a user interface for the 3420. Thismay include installingMicrosoftInternet Explorer and SunMicrosystemsJava Runtime.
When this feature is selected, setupwill install an electronic copy ofthe Rosemount 3420 Reference Manual (this manual) on the PC. Thismay include installingAdobe Acrobat Reader.
When this feature is selected, setupwill install Network Assistant,a program thatautomates network configuration changestosupport 3420 configuration.
When this feature is selected, setupwill install softwarethatwill allow OPC clients running on this PC toaccessthe 3420.
When this feature is selected, setupwill install the OPC Proxy Setup program to configure which 3420swill be accessed by OPC clientsrunning on this PC
Once you have selectedthe desired options,continuewith installation byclicking
Next
.Other selectable optional featuresinclude a desktop icon for the network assistant, a desktop icon for OPC Proxy Setup, and whether to startOPC deviceCOM server automatically.
OPC Installation
Physical Installation
While using an OPC client (such asMatrikon OPC Explorer), installthe OPC Proxy Setupapplication.This will allow OPC Clientusers to define the IPaddress ofthe 3420 OPC Server to access.
NOTE:
If youneed access to more than one 3420OPC Server, all IP addressesshould be defined in the OPC Proxy Setup application.
When the OPC Proxy Setup is completed,the OPC Client will listthe available OPC Servers.You maythen choose and connecttothe desired server(s).
Once connected, add groupsand tags for OPC Client access.
For dimensional drawing information refer to AppendixA:Reference Data on pageA-4.
The castaluminumhousing encloses the electronics circuitry of the FIM.The front of the enclosure hastwo covers;anupper cover and a junction boxcover.
Theupper cover provides access to the electronicsassembly which includesthe microprocessor, fieldbus interfaceboards, fieldbus power conditioners/terminators,and the power supply board.
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The junction boxcover provides access tothe terminalblock. Toopen either cover of the enclosure,use aappropriate screwonthe unhinged side of the enclosure.
1
/4 inch blade screwdriver toremove the
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Rosemount 3420
Mounting Procedure
The FIM can be mounted to a support bracket on a wall or to a pipe.
Mounting the FIM to a Support Bracket
Thefollowing hardware and toolsareneeded:
15
•Four
/16 inch bolts
•Mounting support
3
•
/8 inch drill
1
•
/2 inch socket-headwrench
Mountthe FIM bydoing the following:
1.Drill four
3
/8 inch (9.525 mm) holes in the support bracket to which the
FIM will be mounted.
1
2.Using a bracket with four
/2 inch socket-head wrench, attach the FIM tothe support
15
/16 inch bolts.
Mounting the FIM to a Pipe
The following hardware tools are needed:
•Pipe mount with holesspaced 2.81 inch (71 mm) apart horizontally and
11.15 inch (283 mm) apart vertically.
•Two
•
5
/16 inch U-bolts
1
/2 inch socket-headwrench
Mountthe FIM bydoing the following:
Grounding the FIM
Wiring the FIM
1.Insert one U-boltaround the pipeandthrough the top mounting holesof the pipe mount andthe FIM and another U-bolt through the bottommounting holes of the pipe mountandthe FIM.
1
2.Using a
/2 inch socket-head wrench, fasten nuts to the U-bolts.
If mountingthe Rosemount3420 in the field, ground theFIM witha connection of 1 Ω orlessleading from the external grounding lug toearthground. If mounting the FIM in the controlroom, a cabinet ground is sufficient. In either location, followlocalor plant electricalcodes.
FIM wiring isdone in the terminal block. For accessto the terminal block, open the junction boxcover followingthe instruction “Installation Procedure” on page2-3. The terminal block label is located onthe insideof the FIMjunction box cover.
1
At the bottom of the junction box in
/2 inch NPT conduit entries are four plastic plugs that were placed there at the factory.Four metalplugswere shipped with the FIM and are used to seal anyunused ports.
The FIM caseshould alwaysbe grounded in accordance with national and localelectricalcodes. The most effective grounding method is directconnection to earth ground withminimalimpedance.
Theinternal Ground Connection located withthe supply terminalsis the Internal Ground Connection screw. This screwis identified by the following symbol:
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NOTE
Grounding the FIM casevia threaded conduit connection may notprovide sufficient ground.
The wiring shouldinclude an externalpower shut-off switch or an externalcircuit breaker. This device shouldbe located near the FIM.
Figure2-1. Terminal WiringDiagram
FIM Input PowerConnection
Connecting the Devices
Ethernet 1
Case
Ethernet 2
24 V DC
Power Input
++
-
S
Tx
Fiber Optic
Modbus
Ethernet
Rx
+
Fieldbus 1
-AB
-
Fieldbus 3
Fieldbus 2
SS
SS
Fieldbus 4
-
+
-
+
TheFIMis designed to be poweredby 24 V dc power. Use apower supplysuitable for 185°F with sufficient capacityto power both the FIM and allofthefieldbusdevicesthatare connected to it. The Rosemount 3420 requires 500 mA.About 300 mA of additional currentshould beallocated for each H1 segment ifthe unit is configured with internal power conditioners.The positive and negative power terminalsare found on theleft side of the terminal block.A caseground isalso found on the left hand side of the compartment.
Ethernet
The 3420 isequipped with one or two 10/100 Base-T Ethernet interface receptacles on the left side of the terminal block.Connect the FIM tothe PC that will be used for configuration,using thecrossover cable provided with the
3420. You may also connect the 3420 to an existing Ethernet Hub,Switch orRouter.
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2-6
Thesecond Ethernet portonthe 3420 terminal block is an optional factory-configured redundant Ethernet port. (ordering option OutputCode 2)
Fieldbus
The fieldbus terminalsare found on the right side of the terminalblock in 4 sets of three terminals for the positive and negativeconductors and a shield. Although theFIMisnot polaritysensitive, other components in the segmentsuch as junction blocks may require correct polarity.
Modbus
The Modbusinterface terminalsare located in the upper-middle of the wiringblock next tothe power input. The Modbusinterface is polarity sensitive. Connect the negative tothe right mostterminal (B) and the positive to the leftterminal (A).
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Rosemount 3420
Modbus TerminationSetup
Figure 2-2.Modbus Setup
NOTE:
Do not open the 3420 electronics housing in an explosive atmosphere.
ModbusRTU is transmittedon an RS485 physical layer. Three dip-switchesare provided to enable the RS485 circuitry witha network terminator. The switches are found inside the electronics housing onthe RS485 communication board located in the top center ofthe housing. Switch 2 placesa 120 ohmterminator on the bus.Thiswould be used to match cable impedance ifneeded todampenreflections on long cable runs.Itsuse willdepend on the baud rate and cable length ofthe Modbusnetwork.
Switches 1 and 3 are connected topull-up and pull-down resisters on the Modbus network. These resistersare used toprevent noise frombeing interpreted asvalid communications during periods when nocommunicationsare occurring on the network. Onlyone setis required on an RS485 network.
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RS485 Serial Interface
Figure2-3. Typical two-wiremulti-drop network.
TheRS485 standard describes a balancedtransmission line operating in a shared or multi-drop model. As manyas 32 driver/receiver pairscan share a single network.
Figure2-3 shows a typical two-wire multi-drop network such asused with theRosemount3420. The RS485 specifications indicate that the transmission line should be terminated at both ends ofthe network. Howevertermination should only be used with high data rates above 115kb and long cable runs soitshould not be necessarywith the transmission rates used bythe Rosemount 3420.
Explosions could result in death or serious injury:
•Inan Explosion-Proof and Flame-Proofenvironment, do not openthe Rosemount 3420 electronic housing in an explosiveatmosphere.
•Covermust be fully engaged to meet Explosion-Proofrequirements.
Toconfigurethe Rosemount3420, a private network between a PC and the Rosemount 3420 must first be established. This can be done witha PCdedicated tothe Rosemount3420 or a PCused for another purpose can be temporarilyconfiguredfor the task. If a PC from another network isused, carefullyrecord the current IP addressand other settings sothe PCcan be returned to itsoriginal network when configuration of the Rosemount 3420isfinished. If using a PC attached toanother network, shutdown the PCand removeit fromthe network before proceeding to set up the Rosemount 3420 private network.
Configurefrom the CD
The simplest wayto configure the PC for use withthe 3420 isto use the Network Assistant installed from theCD included withthe 3420.
Configuration of the FIMis done through itsweb interface.To access the device,you must createa private LAN with a subnet of 192.168.1.XX. TheFIMwillappear on this LAN at the IPaddress 192.168.1.10.
1.Using the cross-over Ethernet cable, attach your PC totheRosemount 3420.
2.Launch the network assistanton your PC by double-clicking on itsdesktopiconor byselecting it from the start menu.
3.If prompted, select the network adapter that you connected tothe
3420.
4.Click on the "Direct" buttontoestablish a direct connection tothe
3420.
www.rosemount.com
Whenyou are readyto remove the PC from the 3420 firstopen the Network Assistant and selectvalues.To check the connection,proceed to step 5 below.
Normal
to return the settings ofthe PCto their original
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The PC addressand host settingscan also be changed manually usingthe followingprocedure for Windows XP. The procedure for other operating systems may vary slightly:
1.On your PC, install the Java Plug-infound on the CD providedwith the 3420. You can also findthe JavaPlug-in at:http://java.com/
2.Download the Java software and installit on your computer.
3.Under
Network Connections
in your
Control Panel
:a.Selectb.Right click to select
(TCP/IP)
c.Select the
address to d.Set your Network addressto 255.255.255.0e.SelectOK or
been opened.
4.Using the crossover ethernet cable, attach your PC to the Rosemount
3420.Add an entry in your hosts for the fim3420.
5.Check the Network connectionby typing: PINGfim3420 in the Command Prompt. If you seereplies you knowyou have the hosts filesetup properly.
6.Openyour Internet Explorer browser.
7.Inyour browser address bar type: http://fim3420.
8.Pressredirected to the 3420 home page.)
9.At thea.LogOn asUser:b.Password of:
Local Area Connection
Properties
, then click the
Use the followingIPaddress
192.168.1.12
Enter
. (You should get a message displayed that you are being
Enter Network Password
fieveladmin
Properties
Close
for each of the settingswindows that have
admin
, select button
box:
Internet Protocol
button and set your IP
3420 Network
3-2
NOTE
Before leaving anywebpage that you make changes to, click your changes willbe lost.
Click
Setup>Network>Address
parameters. If theFIMisconnected toa LAN or ifmore than one FIM willbeused on a private network, the unit will need to be given a new IP address and a newhostname.A new entry willneed to be addedtoyour hostfile with thenewIPaddress and Hostname using the Network Assistant or the manualprocedure described above.
Address
If you will be attaching the 3420 to an internal Intranet, you may select to havethe device attainan IPaddressvia DHCP or be statically assigned an IPaddress(Figure3-1).Contact your network administrator ifyou are notsure which selection isappropriate.
on the left menu tree toenter network
Submit
, or all
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Figure 3-1. Network Address
Rosemount 3420
NOTE
Ifyou accidentallymisconfigure the network settings and can notreach the device at the new IP address,return the device tothe private LAN you used for initial configurationwith only theone 3420 connected. You can still accessthe FIMby itsdefault IP address (192.168.1.10) in thisenvironment.
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Backup Address
This address should only needtobechanged ifyour internal corporate network usesnon-routable IP addresses for its internaluse and they use the
192.168.1.xxx subnet. If this is the case, you willwant to change the default IPaddress toan address that does not conflict withan address that isinuse.Please consult your network administrator ifyou can not makethatdetermination yourself.
Click
Setup>Network>Backup Address
to configure the backup IP Address
settings.Be verycareful when changing these settings. The device can be rendered
unusable ifthese values are modified incorrectly.
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PC
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Redundant EthernetConfiguration
If the 3420 has been ordered with a redundant network interface, the network setup page (
Setup>Network>Address
) will display a secondary interface as
shown below.
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Thesecond network interface allows the 3420 to be accessedwith two separate network addresses. The redundant interfacesprovide the 3420 witha degree of fault tolerance to network failures. The following network topologyis supported:
PC
LAN A
(Subnet 192.168.1.XX)
PC
LAN B
(Subnet 192.168.2.XX)
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Rosemount 3420
NOTE
The subnet numbers listed inthe diagram are an example. Any valid networksubnets are acceptable.
If you willbe using the redundant ethernet feature, you may select to have thedevice obtainan IP address via DHCP or be staticallyassigned anIPfor the secondary interface. Contact your network administratorif you are not sure which selection isappropriate.
Security
Table 3-1. DefaultPasswords
Table 3-2. Access Table
Click
Setup>Security
tochange the passwords. These passwords allowforvarying levels of application access. The administrator can modify any systemor field device setting. In contrast, the operator is only ableto modify someFieldbus parameters. Use caution when changing the administrator password. Ifthe administrator passwordis lost, you will notbeable to set up the Rosemount 3420. The FIMis shippedwith the following defaultpasswords:
Read-only access to AI andMAI blocks. (VFDs andother blocksare notvisible.
but with read-write access.All parameters of all blocks
(Read-Write).
No additionalprivileges
System Time Setup
Click
Setup>Time
to configure the system time. Ifyour Rosemount3420 isconnected to a network and you wantto use this feature,youshould select a timeserver at your facility or one near yougeographicallyto insure accuratetimeadjustments. The device willfunction properly withthis feature disabled but data timestamps willbe lessaccurate and timeupdates must be entered for each Rosemount3420.
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Page Options
Point Monitoring Pages
Figure 3-2.Point MonitorPage
To use a network time server, check the box
Enable Network Time Protocol
enter the IP addressofthe time server and select the appropriate NTP packet version.
Alternatelyyou can set thetimemanually. Thisis accomplishedbyunchecking the “Enable Network TimeProtocol” check box.This will enableyou to enter information into the “Date” and “Time” fields.
Click
Setup>Page Options
to configure the pointmonitor and applicationmonitor pages. You can alsoselect which page you wish touse asthe 3420 home page.
PointMonitor Pagesprovide ameans to view the PV or Output of a Function Block andits status on one or more web pages. Multiple pagescanbe configured to fit the application.
Click
Setup>Page Options>Point Pages
to display the currentlist of Point
Monitor Pages.
,
To create a new Page click
New
. Toedit an existing page click on
Edit
tothe
right ofthe page name.The editing screen providesa means of selecting the system tagsthat you
wish to include onthe page.
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Figure 3-3.Editing a new page
Rosemount 3420
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Figure 3-4. Choose a Value
To add a newtag,clickon
New Entry
anda blank line will be added tothe page. Then select the icon to the right of Point Name to select one of the tagsconnected to the system.
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Continue the same processuntil allof thetags are entered. Then click
Submit
at the bottom of the page.
NOTE
Onlyenabled blocks will appear inthe menu. To enable blocks, see Blocks on page3-9.
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Setting Up the Page Columns
Figure 3-5.Point MonitorColumns
Whenyou are finished setting up the pointpages,click on
Options>Point Columns
on theleft menu.Thispage allowsyou toselect
Setup>Page
which columnsyouwant displayedon the Point Monitoring Pages.
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Application Data Configuration
Check the columnsyouwish displayed and click on
Submit
. To view aPoint
Monitoring Page see Monitor on page4-5.
Toconfigurethe data for the monitor application, click
Options>App Data
.
Setup>Page
A monitoring page is automaticallycreated for each application that isconfigured on the 3420 Fieldbus segments. Checkthe fields that you wishtodisplay and then click
Submit
.
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Rosemount 3420
Setting Up the Home Page
Figure 3-6.Home Page
Toselect thefirst screenseenonthe startup of the web interface click
Setup>Page Options>Home Pages
. Check eitherthe Menu Page (default),
Fieldbus Diagnostics,or one of the Point Monitoring Pages.Then click
Submit
.
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Restart App
FIELDBUS FIELD DEVICES
Devices
Blocks
Click
Setup>Restart Apps
to restart the Rosemount 3420 applicationsoftware. This is notneeded during normal operation butmay be required when adding a device description or during troubleshooting of a system issue.Simply select
Yes
to restart orNo toabort.The restart willtake about 1-5 minutes, after whichthe FIM displays the message “Finished restart of the 3420 software.”
The FIM collectsdata based on the tag ofthe function blocks in the devices. Ifthe devicesare not pre-configured with thisinformation it can be edited usingthe FIMweb interface.
Click
Setup>Fieldbus>Devices
to rename the Physical Devices (PD) tagsfor individual devices.Ifthe device isnot already identified with a PD tag you can usethis display to enter them intothe device.Tagnames may be 32 characters in length and are casesensitive.Once all of the device PD tagshave been entered, click
Submit
. Allow 2 minutes for the update to take effectifseveral tags are changed atonce.
Click
Setup>Fieldbus>Blocks
toset up your fieldbus blocks. If the device’s functionblocks are not alreadyidentified with a tag thenyou can use thisdisplay toenter them into thedevice. This tag information is used toassign Modbus registers, OPC Connections and other functions inthe FIM. Block names (tags) may be 32 characters in length and are casesensitive. Normallynotallfunction blockswill be used in an application. This displayallowsonlythoseblocks in actual use to be scheduled to optimize the performance of the Rosemount 3420. Also, each block'salarm handling can be individuallyenabled soalarms are automatically reported and logged.
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Enable Blocks
Toenable a block, locate thedeviceon the Block Setup page using the
Previous
simply check the boxunder
Enable Alarms
Toenable an alarm,locate the deviceon the Block Setup page using the
Previous
alarm to, check the boxundertochoose which typeof alarms toenable, the limit,andanoptional alarmmessage for each type. When you are finished, click
NOTE
Tooptimize performance of the 3420, disable any unused blocks.
and
and
Next
buttons. Whenyou find theblock you wanttoenable,
Enable Block
Next
buttons. Whenyou find thedevice you wantto add an
Alarms
, thenclick
. You may then click the
Submit
Submit
.
.
Limits
button
Application
Once allthe changes have been made,click update to take effectif several tagsarechanged at once.
NOTE
All function block tags mustbeunique on anyRosemount 3420.
Click
Setup>Fieldbus>Application
each segment. Ffunction blocksto be linked tothe input of other function blocksto facilitate advanced calculations andcontrol strategies.
Overview
Click
Setup>Fieldbus>Application>Overview
status and whether the application isactive.Clickadditional applications.
New Applications
Each application is the collectionof all functionblocks linkedon an individualsegment andmust be given a name to identifyit.Then each function block that will be included in the application is added. Select the function block by itstag from the drop down listand then selectbeen added to theapplication,the individual links can be set up. Select
Entry
toadda link tothe application. From thedrop downlist of the first column select the function block output you wish tolink to another block. Then in thesecond column selectthe functionblock input you wishto connect tothe output. Continue adding linksand click added.
OUNDATION
™
toset up the links between functions for
Fieldbus technology allows the output of
Submit
add
submit
. Allow 2 minutes for the
to show the name, segment,
New Application
. After the function blocks have
when all links have been
to set up
New
3-10
Download
Click
Setup>Fieldbus>Application>Download
and their status.The Overview page will show all available applicationsand their currentstatus. While multipleapplications can exist for a segment, onlyone may be activeat anyone time.Check the you wish touse and then
submit
to initiate the download process.
toshow a list of segments
Active
box on the application
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Rosemount 3420
Advanced
Figure 3-7. Plug and Play
Click on
Setup>Fieldbus>Application>Download
to see thestatusof each Fieldbus segment. Check the boxonthe leftand click Submit toinitialize a download for that segment. A statusbutton will show amber while thedownload isinprocess and turn green whencomplete.If the status button turns red itindicates an unsuccessful download. See the Troubleshootingsection for more information.
Click
Setup>Fieldbus>Advanced
to accessthe advanced fieldbus setup
features.
Plug and Play
Plug and Playconfigures devices for monitoring applications automaticallythe firsttime thedevices are connected to the3420. Click
Setup>Fieldbus>Advanced>Plug andPlay>Settings
toinitialize yourfieldbus blocks. Thisscreen willalsoallow you to change any of the default values.
Aportion of the plugandplayis device specific. For example,a Rosemount3144P device channel configurationis set sothatthe first analoginputblock isset for sensor 1, and thesecond analog inputblock is set for sensor 2. Forthe Rosemount 3051, the first analoginputblock is set up for pressure. .
Table 3-3. Plug and Play DefaultSettings
When the Rosemount 3420 and allofthe fieldbus devices havebeen set upthe way you wantthem, click
Setup>Fieldbus>Blocks
DescriptionDefault Setting
Enable Plug and PlaycheckDefault Temperature Unitsdeg CDefault Pressure Unitsin HDefault Flow Unitsft/s
The Rosemount 848T temperature transmitter provides 8 AI blocks and 1 MAIblock.An MAIblock processesall eightinputs at once.The speed at which the Rosemount 3420 scansall of the measurements from the devices on thefieldbussegments is dependent on the number of AI, MAI,and other function blocks being polled. For example if 13 Rosemount 848T's were polled withMAIblocks the scantimewould beapproximately 1 second for all 104 values. Ifthe same13devices were polled with theAIblocks the scan time would be about9 seconds (See Table 3-4 on page3-12).
to display Run Plug and Playsettings. Thispage allowsyou torun (and re-run) plug and playdevicesby selecting the re-initialize with the Plug and Playsettings and clicking
Run
boxonthe rightfor each device that you wishto
submit
. It alsoshows
the segment, device and itscurrent status.
Network Parameters
Click
Setup>Fieldbus>Advanced>Network Parms
to display thefieldbusnetwork parameters. Under normal circumstances these valuesshould nothave to be changed. However if a new device isadded to a segment withsignificantly different communication capabilities, itmay require that these values be adjusted. Contact Rosemount technical support before making anychanges.
3-12
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