Rosemount™ 3095FB Multivariable Sensor Interface Using 68‑6203
Contents
1. 3095FB Multi Variable select the same SV port and Modbus ID the OMNI Flow Computer will recognize that both meter runs are using the same 3095FB device and allocate only one set of I O assignments Referencing 3095FB Variables Elsewhere in the Configuration While the DP temperature and pressure obtained from the 3095FB multi variable are used to calculate flow it may also be necessary to use either the temperature and or the pressure to correct a densitometer device mounted in close proximity To do this simply note the I O point numbers automatically assigned to the 3095FB when it was configured and reuse these point numbers as needed DP Pressure and Temperature Setup Entries Needed Once I O points have been assigned to the 3095FB multi variable transmitter by the flow computer the Differential Pressure Temperature and Pressure setup menus become active Data entries in these menus are e Low Alarm Setpoint e High Alarm Setpoint e Override Value e Override Code 0 Never Use Override Value 1 Always Use Override Value 2 Use Override on a 3095FB Communication Failure or Critical Error 3 Use Last Hour s Average on a 3095FB Communication Failure or Critical Error e 4mA Value read only e 20mA Value read only e Damping Code 0 0 108 Seconds 5 3 456 Seconds 1 0 216 Seconds 6 6 912 Seconds 2 0 432 Seconds 7 13 824 Seconds 3 0 864 Seconds Default 8 27 648 Seconds 4 1 728 Seconds 52 00032. habe nucentelanees 11 Selecting the SV Combo Module Pot c cceeecccceeeesccceeeeesceeeeeesaaeeeeescaeeeseesneaeeeeeeaaeeees 11 Select Modbus Address for SO95F Bic sedecscctssccteenstuctet tent Minds hah ended aeeh cece leaeece as eee ede 11 What I O Points are Used and Why ssccscecscenedaces ican sariaesostdocnpendeuedeeepgiet caeeendtonestana Hanepenienes 11 Bi directional Flow and S095FB Transmitters ccccceesseeeeeneeeeeeeeeeeseeseeeeeeeeeeeeeeeeeeneees 12 Referencing 3095FB Variables Elsewhere in the Configuration ccecesceeeeeeeeeneeeeeee 12 DP Pressure and Temperature Setup Entries Needed 0 c cceeeeeeeeeeeeeeeeeeeeeeeeeeeeeneaeeeeeens 12 Data Transferred between the 3095FB Transmitter and the OMNI Flow Computer 13 Polling Intervals for Process Variables and Critical Alarms ccccceceeneeeeeeeenteeeeeeetneeeeeees 13 Critical 3095FB Alarms Monitored By the Flow Computer ceecceeeeeeeeeeeeeeeeeeeeeeeeteeeeees 13 Synchronizing the 3095FB and the Flow Computer Configurations ccccceceeeseeeeeesneeeees 14 Viewing the 3095FB Data at the Flow Computer Front Panel ccecceceeeeeeeeeeeeeeeeeeeseeeeees 15 Installing Replacing and Calibrating 3095FB Transmitters cccceceeeeeeeeeeeeeeeeeeeeeeeteaeeeeeeeees 16 WHINIMIGSISSUGS 205s Medes nadessst A E aay hairs cas A mendes vase bath anieureattetd 16 Using the OMNI Flow Computer to Set
3. used by any other A B E D E or H combo modules in the system Tables 2 and 3 Table 2 I O Points Used by SV Combo Modules Example 1 EXAMPLE 1 6000 2A 1B 1SV CONFIGURATION A1 Combo Module I O Points 1 4 A2 Combo Module 1 O Points 5 8 B1 Combo Module I O Points 9 12 1 3095FB Configured Uses DP 13 T 14 P 15 2 3095FB Configured Uses DP 16 T 17 P 18 3 3095FB Configured Uses DP 19 T 20 P 21 4 3095FB Configured Used DP 22 T 23 P 24 52 0003 0002 Rev C Y Omni Page 11 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Table 3 I O Points Used by SV Combo Modules Example 2 EXAMPLE 2 6000 1A 1E D 1SV CONFIGURATION A1 Combo Module I O Points 1 4 A2 Combo Module I O Points 5 8 B1 Combo Module I O Points 9 12 1 3095FB Configured Uses DP 13 T 14 P 15 2 3095FB Configured Uses DP 16 T 17 P 18 3 3095FB Configured Uses DP 19 T 20 P 21 4 3095FB Configured Used DP 22 T 23 P 24 Bi directional Flow and 3095FB Transmitters Sometimes it is necessary to use a process variable obtained from a 3095FB in more than one meter run For example when measuring bi directional flow it is customary to configure one meter run within the OMNI Flow Computer as forward flow and a second meter run as reverse flow To do this simply configure both meter runs as Device Type 2
4. when SV Combo Module 2 is present It is possible to have SV ports 3 and 4 without SV ports 1 and 2 assuming SV Combo Module 2 is the only SV module fitted Select Modbus Address for 3095FB In point to point mode i e each SV port is connected to a single 3095FB it is recommended that you select Modbus ID 1 at this point This is the default ID used by Rosemount when the 3095 is shipped In multi drop mode each 3095FB connected to a SV port must have its own address which can be between 1 and 247 What I O Points are Used and Why Even though the multivariable data is obtained serially and not via analog input channels the flow computer must have a storage structure in RAM to place the data OMNI has chosen to treat the data as closely as possible to that obtained by conventional means and use the same physical I O RAM structure as is used for analog inputs The main difference being that with analog and pulse inputs you would manually assign the I O points to be used for each input When using the 3095FB multi variable the flow computer automatically assigns three 3 I O point assignments for the DP temperature and pressure sensors within the 3095FB The I O point numbers are allocated in the order that the 3095FBs are configured using the device type three 3 entries it has nothing to do with SV port or SV module numbers The starting I O point for the first 3095FB configured is the first point immediately after the last I O point
5. 0002 Rev C Y Omni Page 12 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module All of the data entries are changeable when using analog transmitters but when using the 3095FB multi variable transmitter the 4mA and 20mA scaling values cannot be changed The upper and lower range of the 3095FB sensors are fixed by design The OMNI Flow Computer simply reads these values and displays them in the 4mA and 20mA fields for information only While the 3095FB transmitter has internal alarm setpoints and alarm status points OMNI has chosen to ignore the 3095FB integral alarming functions and use the existing flow computer alarm setpoints and alarm status points The Low and High Alarm Setpoints of the flow computer therefore behave exactly as they would with an analog transmitter The 3095FB Critical Alarm states are monitored continuously Data Transferred between the 3095FB Transmitter and the OMNI Flow Computer In operation the OMNI Flow Computer automatically sets up the 3095FB transmitter to use the correct floating point format and units of measure needed to match the flow computer s configuration The OMNI continuously reads the following data e Process Variables DP Pressure and Temperature e Individual Transmitter Sensor Ranges e Critical Transmitter Alarms Sensor failures etc e Transmitter Information Body and Fill material etc e Manufacturers Code e Transmitter Tags Polling Intervals for
6. 100 4738 Wiring Considerations When Replacing a Multi dropped 3095FB Transmitter If downtime of other 3095FB transmitters in a multi dropped system cannot be tolerated make sure to provide a suitable and safe means of disconnecting power and signal from each individual 3095FB transmitter NOTE Because of the power requirements of the RS 485 the 3095FB cannot be made intrinsically safe This means that proper safety procedures must be followed before any covers are removed from any devices or junction boxes located in hazardous areas Refer to Rosemount 3095FB Manual publication 00809 0100 4738 for correct installation of the 3095FB transmitter 52 0003 0002 Rev C Omni Page 10 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Configuring the OMNI Flow Computer to use the 3095FB Multi Variable Transmitter Configuring the Meter Run I O Selecting the Device Type The existing Select Turbine Y N entry in the Config Meter Run menu has been changed to Select Device Type Valid selections at this point are 0 DP Sensor 1 Turbine Meter 2 3095FB Multivariable 3 SMV 3000 Multivariable When 2 is selected the following entries appear Selecting the SV Combo Module Port The number of ports available depends upon what SV Combo Modules are fitted in the flow computer Ports 1 and 2 are available when SV Combo Module 1 is fitted ports 3 and 4
7. 19644 H W Rev 3 Modbus Rev 5 Sensor Type GP DP Range 250 to 250 SP Range 0 800 psi PT Range 40 to 1200F Isolator Mat 1 316SS Fill Fluid Silicone Flange Mtr 1 316SS Flange Type Coplaner Drain Vent 316SS O Ring PTFE Teflon Seal type None Seal Fill None Seal Isolator None Number of Seals None 52 0003 0002 Rev C U Omni Page 15 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Installing Replacing and Calibrating 3095FB Transmitters Wiring Issues If downtime of other 3095FB transmitters in a multi dropped system cannot be tolerated make sure to provide a suitable and safe means of disconnecting power and signal from each individual 3095FB transmitter NOTE Because of the power requirements of the RS 485 the 3095FB cannot be made intrinsically safe This means that proper safety procedures must be followed before any covers are removed from any devices or junction boxes located in hazardous areas Refer to Rosemount 3095FB Manual publication 00809 0100 4738 for correct installation of the 3095FB transmitter Using the OMNI Flow Computer to Set the Modbus Address of the 3095FB The 3095FB transmitter will normally be shipped with a default Modbus address of 1 While this is fine for a point to point installation it will cause a problem if two 2 or more devices have the same Modbus ID in a multi drop scheme The Modbus ID of a transmitter can be set
8. Last Updated 12 March 2012 TB 980501C Technical Bulletin Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module OMNI FLOW COMPUTERS INC ps 1 e 12620 West Airport Boulevard Suite 100 US Omni Sugar Land Texas 77478 United States of America Phone 281 240 6161 Fax 281 240 6162 www omniflow com 52 0003 0002 Rev C TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module NOTE User Manual Reference This Technical Bulletin complements the information contained in the User Manual applicable to Firmware Revision 21 74 25 74 and 23 74 27 74 Table of Contents SCOPE Saree ae ae Par a a r eee ere eee eee re enero eer 4 AbSttach ss S EE rind eas nae EA E atin anit aside a E 4 Important OMNI Flow Computer Compatibility Issues When Using SV Combo Modules 4 Serial Communication Module Compatibility eccceeeeeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseaeeees 4 Other Known System IncompaltibilitieS ce ccececeeeeeeeeeeeeeeeeeeeeeeaeeeeeeeeaeeeeeeeceeeeeeeeeeeeeesenaeeees 4 Equipment Ordering Limitations sccs 2 cccsesiedeeteensort cepeseensieneedeteudets ad artisyulecsbetsalnese eacebaegate tsedae ogee 5 Connectivity Issues When Connecting to the 3095FB Multivariable Transmitters Multi drop Versus Point t0 POInty t rone thet a a A a dba a a 5 Advantages of Multi drop Configurations ccccceeeeseceeeeeeeeeeeeeeeeeeeeeeeeeaaeeeeensa
9. Process Variables and Critical Alarms The message poll scheme comprises regular reads of the process variable values and critical alarms every 200msec per 3095FB connected to a flow computer SV port This means that in a multi drop system with four 4 transmitters the process variable update time will be 4 x 200msec or 800msec Critical 3095FB Alarms Monitored By the Flow Computer Critical alarm points within the 3095FB are monitored and mapped into the OMNI Flow Computer Modbus database as shown in Table 4 52 0003 0002 Rev C Omni Page 13 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Table 4 Alarms Associated with the 3095FB Providing Data to Meter Run n MODBUS ALARM POINT DESCRIPTION ACTION TAKEN IF ALARM IS ACTIVE ADDRESS SEE ALSO FAILURE CODE SETTING 1n83 DP signal 10 above upper DP transmitter failure flagged range limit 1n84 DP signal 10 below lower DP transmitter failure flagged range limit 1n85 Pressure signal 10 above Pressure transmitter failure flagged upper range limit 1n86 Pressure signal 10 below Pressure transmitter failure flagged lower range limit 1n87 Pressure sensor is shorted Pressure transmitter failure flagged 1n88 Pressure sensor bridge is open Pressure transmitter failure flagged circuit 1n89 Temperature signal 10 above Temperature transmitter failure flagged upper range limit 1n90 Temper
10. aaeeeseecaeeeeeeeaaes 5 Disadvantages of Multi drop Configurations ccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaeeeeeeeeaeeeeeeseaeeeeneaas 5 Jumper Settings for the OMNI SV Combo MOdule cccccceeeeeeeeeeeeeeeeeeneeeeeeceeeeeeseeeeeeeeeenaeeees 6 Setting the Address of the SV Combo Module eccccceceecsceeeeeseeeeeeeeeeeeeeeeeeeeeeeeeesaaeeeeeesaaaeees 6 Setting the Termination Jumpers for the Each of the SV RS 485 Ports ccccccessssesreeeeees 6 Initial Setup of the Rosemount 3095FB Multi Variable Transmitter ccseeeeeeeeeeeeeeeeees 8 Connecting the 3095FB to the OMNI Flow Computel ccceeeeeeeeeeeeeeneeeeeeeeneeeeeeeeeeeeeeteneeeeeees 9 3095FB Transmitter RS 485 Connections cccesccceeeeeeneeeeeeeceaeeeeeeeeeeeseeaeeeeeeeneaeeeeeeeaaaeees 9 3095FB Transmitter Power Connections and Requirement cccceeeeeeeeeeeeeneeeeeessneeeees 10 Isolation and Transient Protection ISSUCS sxcccccczccaccevss scsasensectsageateeeeszeieeucetnare eu detedes atv aaetuctenee 10 Wiring Considerations When Replacing a Multi dropped 3095FB Transmitter 008 10 Configuring the OMNI Flow Computer to use the 3095FB Multi Variable Transmitter 11 Configuring the Meter Run W O wsseccectoccechssetheneiaadiedesstdaebsedeisedcetandeceskenedasegbesssnceniauensendanssectadye 11 Selecting the Device Ty PO access cesecc cece chsgdeniavanthedaeandeseebacnnoendendstraveneeeannlubuiee
11. ature signal 10 below Temperature transmitter failure flagged lower range limit 1n91 Temperature RTD is Temperature transmitter failure flagged disconnected 1n92 Sensor internal temperature DP P and T transmitter failures flagged above upper range limit 1n93 Sensor internal temperature DP P and T transmitter failures flagged below upper range limit 1n94 Critical 3095FB sensor DP P and T transmitter failures flagged electronics failure 1n95 Security jumper of 3095FB is set DP P and T transmitter failures flagged if to Write Protect write to 3095FB is attempted and fails 1n96 No communications between the DP P and T transmitter failures flagged OMNI and 3095FB unit 1n96 is flow computer generated Synchronizing the 3095FB and the Flow Computer Configurations To ensure that the flow computer correctly interprets the 3095FB data the flow computer continuously verifies that the configuration of the 3095FB transmitter matches that required by the flow computer Additional message polls verifying this data are interleaved with the normal message polls used to retrieve the process variables and alarms NOTE Numbers in are Modbus addresses within the 3095Fb database The flow computer will attempt to correct the database of the 3095FB transmitter if mismatches are detected for these variables The flow computer will adjust its database to agree with the 3095FB database if mismatches are detected f
12. e SV port for normal operation making sure to observe the termination requirements of only two 2 devices at the end of a loop being terminated Using a Laptop PC to Trim the 3095FB Calibration The flow computer provides no way of calibrating or trimming the output of the 3095FB multi variable transmitter To calibrate the transmitter use the Configurator User Interface PC Software available from Rosemount The user must disconnect the 3095FB needing calibrating and connect it in point to point mode with the Laptop or PC running the Rosemount Interface Software Remember to follow all correct safety procedures when removing transmitter covers or junction boxes Read the manufacture s warnings and recommendations as printed in the 3095FB manual Be aware that when removing a transmitter from a multi drop installation wiring may be disturbed and disruption of the circuit may cause a loss of all measurement signals due to loss of power signal or RS 485 termination 52 0003 0002 Rev C AN Omni Page 17 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module DOCUMENT REVISION HISTORY DOCUMENT INITIAL RELEASE DATE iiicsid dicecatceacotecs sce decdeweccecans tetsavencttececndsasites 22 May 2003 REVISION DATE PURPOSE CHANGE REQUEST A 22 May 2003 Maintained on the Web Initial release B 13 April 2009 DCR 090101 C 12 March 2012 DCR 120031 52 0003 0002 Rev C Y Omni Page 18 of 18
13. e and Temperature inputs e Four communication ports for SCADA PLC Printer OMNICOM etc e Twelve Digital I O for logic control e Six digital to analog outputs This SV module is capable of connecting to one to four 3095FBs in various multi drop configurations A second SV combo module can be utilized in applications where point to point operation of more than two 2 multivariable transmitters is desirable Important OMNI Flow Computer Compatibility Issues When Using SV Combo Modules The SV combo modules are effectively serial I O modules which have been specially designed to communicate with various multivariable transmitters Changes have been made to the IRQ priorities to accommodate these SV combo modules These IRQ changes also involve the Serial I O Combo Modules that are used to connect to printers OMNICOM PLCs and SCADA devices Serial Communication Module Compatibility SV combo modules cannot be installed in flow computer systems containing RS 232 C Serial I O Combo modules model type 68 6005 The IRQ settings on the 68 6005 serial combo module are not jumper selectable and are incompatible with the SV combo modules The flow computer will not be able to initialize or boot up if this module is installed this will be evident by a blank LCD screen which flashes its backlighting on and off every 1 5 seconds The more recent 68 6205 serial module which is both RS 232 C and RS 485 compatible has jumper s
14. electable IRQ settings these must be installed in the IRQ 3 position when an SV combo module is present TB 980503 for more details Other Known System Incompatibilities At the time this bulletin was prepared it was not possible to install both an SV combo module and an HV Honeywell multivariable combo module in the same unit 52 0003 0002 Rev C Y Omni Page 4 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Equipment Ordering Limitations Because of the compatibility issues raised in the previous paragraphs it is not possible for the customer to retrofit existing flow computer installations with SV combo modules Any system which requires SV combo modules must be purchased new from OMNI or the system must be returned to OMNI to be modified Contact Sales at sales omniflow com for upgrade details and pricing Connectivity Issues When Connecting to the 3095FB Multivariable Transmitters Multi drop versus Point to Point The 3095 FB multivariable transmitter is a four 4 wire device two 2 power wires and two 2 wires for the RS 485 serial communication link It can be connected in a point to point or multi drop wiring configuration Advantages of Multi drop Configurations The advantages of multi drop configurations are e Less wire may be needed to connect devices under certain conditions This may or may not be the case dependin
15. es contained in this Technical Bulletin This Bulletin applies to Orifice Differential Pressure Liquid Flow Metering Systems and to Orifice Gas Flow Metering Systems Abstract The Rosemount 3095FB Multivariable sensor assembly is used to measure differential pressure DP static pressure SP and line temperature T Application of the 3095FB is limited to flow computer revisions 21 23 25 and 27 which work with differential head devices such as orifice meters nozzles and venturi meters Because the flow computer is limited to a maximum of four 4 meter runs it is also limited to a maximum of four 4 3095FB multivariable transmitters Data is accessed from the 3095FB transmitter via a 2 wire RS 485 data link at 9600 baud using Modbus protocol Technically it would have been possible to use one of the flow computer s standard serial ports to communicate with the 3095FB but this would have caused several issues e Reduced the number of serial ports available for use with SCADA PLCs and OMNICOM etc e Extra A type combo modules would have to be purchased simply to provide analog outputs in a minimum system requiring just the multivariables OMNI chose to design a special SV combo module which includes two 2 2 wire RS 485 ports and six 6 4 20 mA analog outputs With this module it becomes possible to provide a powerful OMNI 6000 3000 system with the following specs e Four meter runs with Differential Pressure Static Pressur
16. g Output 3 10 4 20mA Analog Output 4 11 4 20mA Analog Output 1 12 4 20mA Analog Output 2 Figure 7 RosemountTM 3095FB Multivariable Wiring Terminals 3095FB Transmitter RS 485 Connections Two 2 terminals are provided marked A and B these are connected to the A and B terminals of other multi dropped 3095FBs and to the OMNI SV Combo module terminals These connections should be made using twisted pair unshielded wire with a minimum gauge dependent upon the distance to be run Use 22 AWG minimum 18 AWG maximum for runs less than 1000 ft Use 20 AWG minimum 18 AWG maximum for runs of 1000 to 4000 ft Shielded twisted pair cable can be used but may have an attenuating effect due to a higher capacitance per foot thereby limiting the maximum wire run length to less than 4000 ft 52 0003 0002 Rev C Y Omni Page 9 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module 3095FB Transmitter Power Connections and Requirements Terminals marked and are provided to connect the 3095FB to a 7 5 VDC to 24 VDC power supply This power supply must be able to provide 10 mA per installed 3095FB plus an additional 100 mA which is required when any 3095FB in the system is transmitting data to the flow computer Ripple on this power supply must be less than 2 Wiring gauge should be selected as per the previous paragraph and can be unshielded un twisted pair but for best perfor
17. g upon equipment placement e One 1 OMNI SV Combo module can handle up to four 4 3095 FB multivariable transmitters An OMNI 3000 can be used in place of an OMNI 6000 and handle four 4 meter runs Disadvantages of Multi drop Configurations Disadvantages of multi drop configurations are e Multiple Modbus IDs required Each multi dropped transmitter must have a unique Modbus ID which matches the Modbus ID selected within the flow computer for that meter run multivariable e Possibility of errors when replacing multivariable transmitters Because of the multiple Modbus addresses it is not possible to simply take a transmitter off the shelf and install it in a multi drop configuration This is because transmitters come from Rosemount with the Modbus address defaulted to 1 and there may already be a transmitter in the loop using that address Adding a second transmitter with the same address as an existing transmitter would effectively cause a loss of signal on both transmitters existing and new Depending upon where the transmitter is in the wiring termination jumpers may or may not be required on the replacement transmitter e Transmitter interaction is possible While not likely a hardware failure in one transmitter could compromise the integrity of the shared RS 485 link causing a loss of flow signals for all meter runs Calibrating a transmitter via a laptop computer requires the wiring to be disturbed Care must be taken not
18. mance should be shielded and twisted 4000 Ft Maximum OMNI FLOW COMPUTER Termination ON RS485 BUS No Stubs over 6 FT SV PORT 1 Be z Ao Bo SV PORT 2 o B2 D Ja SV PORT 3 _ RS485 Ac D D D B BO f SVPORT 4 d D D AS 7 PWR 7 5 VDC to 24 VDC Power Supply 150 mA Minimum 2 Termination OFF Termination OFF Termination ON Figure 8 Rosemount 3095 RS 485 Serial Ports in a Multidrop System If there are communications problems swap wires A and B on one end and try again Isolation and Transient Protection Issues The design of the 3095FB transmitter does not provide any DC isolation between the power connections and the RS 485 connections Applying voltages between the power wiring and RS 485 wiring greater than the allowable common mode voltage of a RS 485 driver circuit could damage the 3095FB The OMNI Flow Computer SV port is optically isolated and can handle common mode voltages of 250 VDC with respect to chassis ground Inductive base transient protectors including the Rosemount Model 470 can adversely affect the output of the 3095FB Do not use the Model 470 for transient protection with the 3095FB If transient protection is desired install the optional Transient Protection Terminal Block described in Appendix B of the Rosemount 3095FB Manual pub 00809 0
19. mode Setup n Enter Where n is the SV port number that the 3095FB is connected to 6 The following warning screen may display SV port 1 is used as an example or the screen in 7 will display SV Port 1 1 This Port Currently Configured For Use Continue Y N This means that the flow computer has detected that this SV port is currently configured to communicate with one 1 or more transmitters You may or may not have selected the wrong SV port refer to CAUTION D Omni Page 16 of 18 52 0003 0002 Rev C w TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module 7 If you wish to continue with the address broadcast operation enter Y and the following screen will display SV Port 1 1 Change Xmtr Address New Address Idle 8 Scroll down to New Address and enter the address required Press Enter and the following message will display Sending New Address 9 The flow computer will wait a short time and then attempt to communicate with the 3095FB using the new address If communications are established the following message will be displayed for a few seconds Address Changed The following message will display for a second or two 2 should the transmission fail Failed Change Should this message appear check your wiring switch and jumper settings and repeat the procedure 10 Disconnect and reinstall 3095FB to the appropriat
20. mount 3095FB Multi Variable Transmitter The 3095FB module has two 2 sets of DIP switches and a jumper set which must be setup according to the wiring configuration used to connect to the OMNI Flow Computer AIl ON Terminated All OFF Un Terminated Security OFF to allow configuration z OF Sa o E gt ON t2c oo zz gt S SECURITY loo oa a5 oo EE Sana AR 12 3 All ON For 9600 Baud Figure 6 Rosemount 3095FB Multivariable Setup Switches and Jumpers Place the security jumper in the OFF position this allows the OMNI Flow Computer to write to the 3095FB registers ensuring that the internal configuration matches the flow computer Both baud rate switches S1 and S2 must be set to 9600 i e in the ON position The termination switches should be all ON or all OFF depending upon whether device termination is required 52 0003 0002 Rev C Omni Page 8 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Connecting the 3095FB to the OMNI Flow Computer Table 1 Back Panel Termination Assignments SV Combo Module TERMINAL SIGNAL DESCRIPTION 1 Port 3 RS 485 B wire 2 Port 1 3 RS 485 A wire 3 Port 2 4 RS 485 B wire 4 Port 2 4 RS 485 A wire 5 Signal Return for 4 20mA Outputs 6 Signal Return for 4 20ma Outputs 7 4 20ma Analog Output 5 8 4 20mA Analog Output 6 9 4 20mA Analo
21. n_ Port Terminated gt A B SV Porta 3 Both Jmpers Out Port Non Terminated Always RTS gt rts Bi cno T T E E SV Address Jumper R p R SV Port 2 4 Jmpin 1 SV Combo M M Jmp Out 2 SV Combo x nd Always IRQ ay BRD SEL Port Numbers in are for 2 SV Module 2 GEER Ra Figure 1 OMNI Model 68 6203 Multivariable Interface Module SV Combo Module Setting the Address of the SV Combo Module The flow computer can accept up to two 2 SV Combo modules each with a unique address determined by the BRD SEL jumper shown in Figure 1 With this jumper fitted the flow computer will report that a SV1 module is installed and SV ports 1 and 2 will be available Without this jumper in the BRD SEL position the flow computer will report that a SV2 module is installed and SV ports 3 and 4 will be available Note that a system can have a SV2 module without a SV1 being installed in this case only SV ports 3 and 4 would be available Setting the Termination Jumpers for the Each of the SV RS 485 Ports Multivariable RS 485 communication circuits must have two 2 ends only a star configuration with more than two 2 ends or a loop configuration with no ends is not allowed The devices at both ends of the circuit must be jumpered to provide termination Omni Flow Computer This Device This Device Must Be Must Be Terminated Terminated Figure 2 Multi drop Configurati
22. on with Flow Computer Terminated Both jumpers marked TERM must be installed to terminate a flow computer SV port Figure 1 Termination settings for the 3095FB are shown later in this Technical Bulletin 52 0003 0002 Rev C Y Omni Page 6 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module This Device Must Be Terminated 3095 FB 3095 FB Omni Flow Computer This Device Must Be Terminated 3095 FB 3095 FB Omni Flow Computer Star Configuration Not Allowed Figure 4 Unacceptable Configuration Five Termination Points 3095 FB 3095 FB 3095 FB All 4 MV Ports of 3095 FB Flow Computer Must Be Terminated Computer Using Independent MV Ports Modbus IDs of 3095FBs All Four 3095FB Can Be The Same In This Transmitters Point to Point Configuration Must Be Terminated Figure 5 Point to Point Wiring Configuration In the point to point configuration each 3095FB transmitter is connected to an independent SV port of the flow computer Because each SV port is now connected to only one 1 3095FB each 3095FB can now use the default Modbus address 1 greatly simplifying transmitter replacement issues discussed in this Technical Bulletin 52 0003 0002 Rev C Y Omni Page 7 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Initial Setup of the Rose
23. or these variables 52 0003 0002 Rev C Y Omni Page 14 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Critical 3095FB configuration data which is checked every 10 seconds is e Floating Point Number Format 0132 e Measurement Engineering Units of Measure 0060 0062 e Minimum and Maximum Ranges of each Signal 7407 7416 e Transmitter Identification Information Only 0001 0011 e Damping Factors 7421 7424 7427 e Transmitter ASCII Tags 3x8 characters 0032 0047 e Transmitter Information Materials of Construction 0017 0029 Viewing the 3095FB Data at the Flow Computer Front Panel Differential Pressure Temperature and Pressure variables and averages are viewed using the normal key press combinations as described in the OMNI Flow Computer User Manual A display list of 3095FB transmitter information can be displayed by pressing Setup n Enter Data is organized by SV port number n and in the order that the transmitters were configured The information and diagnostic data is displayed example shows first transmitter on the 1 SV port as an example NOTE 1 digit is the SV port number 2 digit is the Modbus Address of the 3095FB SV Port 1 1 Manufactur Rosemount Model 3095 Modbus Out Board Rev 108 0 If you continue to scroll down the following data will be displayed Sensor Mod Rev 142 Sensor Serial 839193 Xmtr Ser
24. the Modbus Address of the 3095FB 0008 16 Using a Laptop PC to Trim the 3095FB Calibration ccecceeeeeeeeeeeeeeeeneeeeeeeeneeeereeneeeeenes 17 52 0003 0002 Rev C Omni Page 2 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Figures Figure 1 OMNI Model 68 6203 Multivariable Interface Module SV Combo Module 6 Figure 2 Multi drop Configuration with Flow Computer Terminated ccceseeeeesereeeeeeeneees 6 Figure 3 Multi drop Configuration with Flow Computer Non terminated ceeeeeeeeeeeeeeeees 7 Figure 4 Unacceptable Configuration Five Termination Points ccccceeeeeeeeeeeeeeeeeeeeeeeeees 7 Figure 5 Point to Point Wiring Configuration cccccceeeesscceeeeeeceeeeeteeeeeeeseeeaeeeeeeeeeaeeeeeeeaaeeees 7 Figure 6 Rosemount 3095FB Multivariable Setup Switches and JUMPEFS ccccesceseeeeees 8 Figure 7 RosemountTM 3095FB Multivariable Wiring Terminals c ees e cess eeeeeeeeees 9 Figure 8 Labels for Rosemount 3095 RS 485 Serial Port are Eeversed Label A is B negative signal and Label B is A positive signal 52 0003 0002 Rev C Omni Page 3 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Scope Firmware Revisions 21 74 25 74 and 23 74 27 74 of OMNI 6000 OMNI 3000 Flow Computers are affected by the issu
25. to disconnect other transmitters in the same multi drop loo e RS 485 termination requirements are more complex RS 485 transmission wires must have only one beginning and one end they cannot be used in a star configuration Both ends of the wire must be terminated meaning only two 2 devices in the loop need terminating In a point to point configuration this simply means both the flow computer and transmitter are terminated In a multi drop configuration the user must ensure that only the end devices have the termination jumpers in This means that some transmitters may have the terminating jumpers in while others may have them out Remember that the OMNI may or may not be at the end of the wire so it may or may not be one of the terminated devices e Process variable update time may exceed the flow computers 500 msec cycle time Critical measurement or control systems require that the process variables be input to the flow computer as fast as possible for best performance 52 0003 0002 Rev C Omni Page 5 of 18 TB 980501C Rosemount 3095FB Multivariable Sensor Interface Using 68 6203 SV Module Jumper Settings for the OMNI SV Combo Module The Multi Variable SV Combo module contains several sets of jumpers which must be installed correctly Figure 1 Port 1 3 A Port 2 4 Tx RTS Leds rents Leds Red Recv Led Grn Recv Led Grn RTs MMe lanp T T SV RS 485 Termination Jumpers E E Both JmpersI
26. using the Configurator User Interface PC Software available from Rosemount It is anticipated though that some situations may arise where a 3095FB transmitter must be installed or replaced without this software being available In this case the OMNI Flow Computer can be connected to a 3095FB in the point to point mode using any available SV port and the Modbus ID changed to what is required in the flow computer configuration CAUTION A This procedure involves broadcast transmitting a Modbus address out of a SV port All devices connected to this SV port will have their Modbus address set to the ID broadcast This would cause data collisions and a complete loss of communication when more than one 3095FB transmitter is connected Be sure to temporarily disconnect any 3095FB transmitters which addresses you do not want to change Proceed as follows 1 Setup the 3095FB as described previously in the section titled Initial Setup of the Rosemount 3095FB Multi Variable Transmitter Setup the 3095FB to be RS 485 terminated Connect the transmitter to any open SV port terminal A to A B to B The SV port should be jumpered for RS 485 termination If this SV channel is not an open channel all 3095FB transmitters except the one needing the address change must be disconnected Apply power to the 3095FB transmitter At the flow computer front panel press the following keys Alpha Shift Diag The computer will enter the Diagnostic
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