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Emerson 848T Satellite Radio User Manual

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1. 05514 405 FTAVLINS 05514 HO3 zr8viins NOLLVNIWHSL 331430 snada 39IA3Q 5 807315 WSO VSD VSD 7 1898 1300W 11 HI 07 S an 09 NISIA g p 21 21H pyu 086 xow m do WAOHddV lnoHIIM IPA G1 XouA PA Gel 20A GSLLINYSd SNOILVOISIGOW ON SLAN WaLaNVuVa SLINI 109110 TWNINYL 9007 H3MOd gt 5 35 03140930 vso 30 M 266 17 October 201 1 Reference Manual 00809 0100 4697 Rev EA Hosemount 848T 40 12345 200 3 1 3 INIYW ANI d 31 25 10N 00 2 AIG 1 95912 ONY 095139 51 su E j80S012N3 Xr 03114915 1NnOW3SON HLIM QITIYLSNI INn0W3SON IGAVW YO ALIYOHLNY NOIIO3dSNI 10207 318Y1d320V Q3N1NN3130 SY JYNSOTONA 318YLIQS NI GITWISNI 38 ISNAN 976 TUA 031412385 351 SS3INY ONIONYH 38 151 ONY 70939 3000 1v21U12313 t TONY Ok OR EM NVIOVNVO JHL ONY SNOILONYLSNI S 33H012VJ0NYVN HLIM 3ONYQUOOOV NI 38 TIV
2. Standard Standard JP1 Plastic Junction Box No Entries JP2 Plastic Box Cable Glands 9 x M20 nickel plated brass glands for 7 5 11 9 mm unarmored cable JP3 Plastic Box Conduit Entries 5 Plugged Holes suitable for installing 2 in NPT fittings JA1 Aluminum Junction Box No Entries JA2 Aluminum Cable Glands 9 x M20 nickel plated brass glands for 7 5 11 9 mm unarmored cable Aluminum Conduit Entries 5 Plugged Holes suitable for installing 2 in NPT fittings JS1 Stainless Steel Junction Box No Entries JS2 Stainless Steel Box Cable Glands 9 x M20 nickel plated brass glands for 7 5 11 9 mm unarmored cable JS3 Stainless Steel Box Conduit Entries 5 Plugged Holes suitable for installing 2 in NPT fittings Jx3 9 Explosion proof Box Conduit Entries 4 Plugged Holes suitable for installing 2 in NPT fittings Software Configuration Standard Standard C1 Custom Configuration of Date Descriptor Message and Wireless Parameters Requires CDS with Order Line Filter Standard Standard F5 50 Hz Line Voltage Filter Calibration Certificate Standard Standard Q4 Calibration Certificate 3 Point Calibration Shipboard Certification Standard Standard SBS American Bureau of Shipping ABS Type Approval SLL Lloyd s Register LR Type Approval Special Temperature Test Expanded LT Test to 60 F 51 1 C Conduit Electrical Connector Standard St
3. n OHIONYN ISAK ONV 9 HO OS YO ais Maia NV on 20A _ 10 YO 1014110 1fidNI 321A30 01313 Snivuvddv Q31VI20SSV SnivuvddV S I WHO 01 23051 SI 9N1MO1103 JHL N3HM SnlVBVddV 31VI20SSV HIIM NVHL SS31 38 19 H1YY3 ONY ONhONO 34VS AT1VOISNISINI N334138 3ONVISIS3N 1171 SMLVUVdd FAVS AT1VOISNISINI JO NOII23NNOOU31NI SMOTIV 1d32NOD ALIIN3 3Hl N3NdIDO3 STHL ONITIVISNI N3HM Q3401104 38 1 O9NIMYUQ NOIIVITVISNI S u3un12V30nNVW Snivuvddv Q31VI20SSV 1 112344 38 91 YO 92 30 1V101 V 0332X3 LON AWW 2 095915 2 06 964 8402 STVNIWYSL HOSN3S 11 OL Q3ldddV JONVLONGNT 3ONVIIOVdVO 1101 j 1 11 1 3801V83dH31 1N318nY av ALFAVS DISNIYINI YIYdWI SIN3NOdNOD 30 NOILNLILSENS ONINUVM OL VdiN ISNV 3002 1V21412313 IVNOIIVN JHL 9NI2IAU3S 380438 YIMOd 123NNOOSIQ SNOI1V2O1 0313155912 SnOQuVZVH YO4 SN31SAS JAYS ATIVOISNIUINI 40 S3u3HdSOWIV 31811908402 YO 318VWNV1J 30 NOILINOI IN3A3Hd OL ONINUVM NOIIVIIVISNI 90 I0 2ldU VSI ISNV HLIM 32NVQHuO2OV NI 38 01 NOIIVTIVISNI S VNINU3I NOSN3S OL 03123NNOO 38 AWW 5 014 ONY IPA YO SWIA OGZ SJINOJOWYIHL SY HONS SnlvHuVddV 31dWIS SY Q3 3ISSV1O LNIWdINOJ AINO NvHl 3N0W 31V83N39 YO 351 LON LSAW Y3ly4va Ol Q3123NNOO INJWdINO3 1041N09 7077 87800 STWAOUddY TWAOUddY YOIYd LNOHLIM ONIMVUO OL NOISIAJY ON I 310N
4. 3 2 Standard AA a VERD a 3 2 Transmitter 3 2 Custom 3 2 MethiodS is xz EIU euis UE PE ERR ERE DEEST 3 2 Alariris s cud e Ga ERA ee ERE 3 3 certe pies cesi VER MERETUR Re M 3 3 Configure the Differential 50 5 3 3 Configure Measurement 4 3 3 Common Configurations for High Density Applications 3 4 Interfacing Analog Transmitters to Foundation fieldbus 3 6 Block Configurations edet de eee wa tele ee ane Ei dd eL eo 3 7 Resource BIOK a oues Ba e xe pm E eed de ded 3 7 PlantWeb 3 11 Recommended Actions for PlantWeb Alerts 3 14 Transducer Blocks 3 15 Transducer Block Sub Parameter Tables 3 20 TOC 1 Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 SECTION 4 Safety lt 4 1 Operation and WarningS ots xttl ted nd d tI E E 4 1 Maintenance Foundation fieldbus Information 4 1 Commissioning 5 4 2 Hardware Maintenance 4 3 Sen
5. Number Parameter Description 28 FAULT STATE Condition set by loss of communication to an output block fault promoted to an output block or physical contact When FAIL SAFE condition is set then output function blocks will perform their FAIL SAFE actions 29 SET FSTATE Allows the FAIL SAFE condition to be manually initiated by selecting Set 30 CLR FSTATE Writing a Clear to this parameter will clear the device FAIL SAFE if the field condition has cleared 31 MAX NOTIFY Maximum number of unconfirmed notify messages possible 32 LIM NOTIFY Maximum number of unconfirmed alert notify messages allowed 33 CONFIRM TIME The time the resource will wait for confirmation of receipt of a report before trying again Retry will not happen when CONFIRM TIME O 34 WRITE LOCK If set all writes to static and non volatile parameters are prohibited except to clear WRITE LOCK Block inputs will continue to be updated 35 UPDATE EVT This alert is generated by any change to the static data 36 BLOCK ALM The BLOCK ALM is used for all configuration hardware connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active will set the Active status in the Status attribute As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed 37 ALARM SUM The cu
6. SNIH33NION3 NO9IS3Q JunivH3dN3l 21H 30 VAOHddV JHL LNOHLIM HW 0 gt GALLINYAd SNOILVIISIGON ON 19naoud ti un d 3 VS2 00 z Copy 2 8 25 0 OPA 51 SLN Y3LINYYYd 179110 5 X3L3WV YYd ALLNI WNIWY31 YOSN3S NOI LdI82830 VNIWHSL 007 H3MOd 30Vd I SSv1 80 213 3974 02513 0 39vd 1 NO11d182930 ON HSYQ NOI1VTQnGVL SH3l34v vVd AILIN3 31v Odfl Figure B 2 CSA Intrinsic Safety FISCO B 16 Reference Manual 00809 0100 4697 Rev EA October 2011 Hosemount 848T 30 Z 13H 200 1 eel VINIVA 0Y 37925 JON 00 6077 607072 LIB NONW 2 87800 ON ON 60 02 NJAN N s NU D NOILVTIVISNI VS Iau ETE MM 1 12 ONY 09813 8 81 eu da Q131HS OL 0311 3NIT 404 Q131HS OL 3NI1 2 GNI T 01 3NI 1 22 wassequeq puewelnog BAIN 0 S3903 ONY v 013189 OL 1930838 olNNOWISO aie il Eh HLIM 9 119013 SINI7 H108 804 Q131HS 01 3N11 2 2 1 3171 01 311 2 22 j ik ads BO aw 002 OL 08 2 32N110VdV2 5077 87800 OL 0 1 39NVLOR QNI wy S4wo OS OL GI 3ON
7. N FAILED_MASK This parameter will mask any of the failed conditions listed in FAILED_ENABLED A bit on means that the condition is masked out from alarming and will not be reported FAILED_PRI Designates the alerting priority of the FAILED_ALM see Table 3 4 on page 3 11 The default is 0 and the recommended value are between 8 and 15 FAILED ACTIVE This parameter displays which of the alarms is active Only the alarm with the highest priority will be displayed This priority is not the same as the FAILED PRI parameter described above This priority is hard coded within the device and is not user configurable FAILED ALM Alarm indicating a failure within a device which makes the device non operational MAINT ALARMS A maintenance alarm indicates the device or some part of the device needs maintenance soon If the condition is ignored the device will eventually fail There are five parameters associated with MAINT ALARMS they are described below MAINT ENABLED The MAINT ENABLED parameter contains a list of conditions indicating the device or some part of the device needs maintenance soon Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Table 3 6 Maintenance Alarms Priority Alarm Alarm Priority Sensor 8 Degraded 1 Sensor 7 Degraded Sensor 6 Degraded Sensor 5 Degraded Sensor 4 Degraded Sensor 3 Degraded Sensor 2 Degraded Sensor 1 Degraded Body Tem
8. IPA Pech XOWA SLANT u3rawvuvd 1 WNIWHAL 007 B 18 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Appendix C OVERVIEW FUNCTION BLOCKS ROSEMOUNT FOUNDATION fieldbus Technology Overview page C 1 Function Blocks page C 1 Device Descriptions page C 3 Block Operation page C 3 Network Communication page C 4 FOUNDATION fieldbus is an all digital serial two way multidrop communication protocol that interconnects devices such as transmitters sensors actuators and valve controllers Fieldbus is a Local Area Network LAN for instruments that are used in both process and manufacturing automation having the built in capability to distribute the control applications across the network The fieldbus environment is the base level group of digital networks and the hierarchy of plant networks The FOUNDATION fieldbus retains the desirable features of the 4 20 mA analog system including standardized physical interface to the wire bus powered devices on a single pair of wires and intrinsic safety options It also enables the following capabilities Increased capabilities due to full digital communication e Reduced wiring and wire terminations
9. 1858 IPPON N SD 9 Aij v 3AION3ON I NON HI 91 AM esp E099 mug Od 8 Ol IPA on SUW H3I3AVHVd ALLLN3 AfidNI IVNIWH3L 9007 H3MOd SLINM Y3LINYYYd 1 1 0 IVNIWH3I HOSN3S 2 331430 snaq aid qaAosddv Wd SOAS 51807315 Wd ONIUS3NION3 NISIA JunlvH3dWil 21H 30 vAOHddV JHL InoHlIM SNOLLVOHIGOW ON 9naoud 03152999 Wa 00809 0100 4697 Rev EA Reference Manual October 201 1 October 201 1 Reference Manual 00809 0100 4697 Rev EA Hosemount 848T E 30 13345 206 3003 1310044 3 084 UNIVANIYW 0Y ttd 31925 LON 5079 87800 pm ven S ON ON AIC 1 SS 1D ONY 09513 71 NOLLVIIVISNI YSOuu By 2100995 4319 A C EN NOS dS sh ruesstuie pne 0008 gu ques ow sene m 29 xow 031413345 351 MAHI SS 20A XDWA oANNOWASO E 114110 391430 01313 Wb J BO TRENT SNLVUVdd 031120557 SNLVUVdd 571 wis xis 3041 SI ONIMOT104 FHL N3HM S lVuvVddV 0317120857 HLIM NOISIAIG YO4 ALITIGYLINS Snivuvddv FAVS ATIVOISNIUINI 40 NOII23NNOOU31NI SMOTIV Ld3INOD ALIIN3 JHL AL34VS OISNININI HIVd
10. to denote TEARHERE physical Divi Oe location OX810AAC05 TAG Transmitter Tag Hardware Tagged in accordance with customer requirements Permanently attached to the transmitter Software The transmitter can store up to 32 characters If no characters are specified the first 30 characters of the hardware tag will be used Sensor Tag Hardware A plastic tag is provided to record identification of eight sensors This information can be printed at the factory upon request In the field the tag can be removed printed onto and reattached to the transmitter Software If sensor tagging is requested the Transducer Block SERIAL NUMBER parameters will be set at the factory The SERIAL NUMBER parameters can be updated in the field 2 11 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 2011 INSTALLATION Using Cable Glands Figure 2 10 Installing the 848T with Cable Glands Using Conduit Entries Figure 2 11 Installing the 848T with Conduit Entries 2 12 Use the following steps to install the 848T with Cable Glands 1 2 Remove the junction box cover by unscrewing the four cover screws Run the sensor and power signal wires through the appropriate cable glands using the pre installed cable glands see Figure 2 10 Install the sensor wires into the correct screw terminals follow the label on the electronics module Install the power signal wires onto t
11. 4 3 Restart Processor 4 3 Restart with Defaults 4 3 Resource Block 3 7 Standard 3 2 Transmitter 3 2 Connections 2 4 Analog Inputs 2 5 Millivolt Inputs 2 5 Ohm Inputs 2 5 PowerSupply 2 7 RTD Inputs 2 5 Thermocouple Inputs 2 5 D Damping Configuration 3 3 Device Descriptions C 3 Differential Sensor Blocks Configuration 3 3 Differential Transducer Block Troubleshooting 4 4 DIN Rail Mounting 2 2 Drawing Switch Location 2 10 Drawings 848T Analog Connector 2 6 Analog Input Wiring 2 6 Block Diagram 4 2 Block Internal Structure C 2 Cable Gland Installation 2 12 Commissioning Tag 2 11 Conduit Entries Installation 2 12 Installation B 10 Sensor Wiring 2 4 Transmitter Label 2 7 Transmitter Wiring 2 4 F FOUNDATION Fieldbus 4 1 Addressing C 6 Block Operation C 3 Alerts ruis C 3 Instrument Specific Blocks C 3 Check Device Descriptions Function Block Scheduling Function Blocks Link Active Scheduler Network Communication Overview Scheduled Transfers Troubleshooting Unscheduled Transfers Function Blocks OOO0OROOOOOOOmR NAO AA Analog Input Input
12. Analog Device Inputs Shield ground points 1 Ground analog signal wire at the power supply of the analog devices 2 Ensure that the analog signal wire and the fieldbus signal wire shields are electrically isolated from the transmitter enclosure 3 Do connect the analog signal wire shield to the fieldbus signal wire shield 4 Ground fieldbus signal wire shield at the power supply end AnalogDevice Power Supply FOUNDATION 4 20 mA loop fieldbus bus Power Analog 848T Supply Device hield ground points Transmitter Enclosure optional Ground the transmitter in accordance with local electrical requirements 2 9 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 2011 SWITCHES Figure 2 8 Switch Location on the Rosemount 848T ON OFF SECURITY SIMULATE ENABLE E Ts rd SI E OB ES m B E 2 10 DS eoodq mmsesoeq mmsesooeqdq mmesoo Iso I Security After configuring the transmitter the data can be protected from unwarranted changes Each 848T is equipped with a security switch that can be positioned ON to prevent the accidental or deliberate change of configuration data This switch is located on the front side o
13. 26 lt r DSSTSO OVITSq oveeeq so Figure 2 6 848T Analog Connector Channel 2 6 Analog Input Connectors Analog Transmitters Power Supply 250 ohm resistor in the loop when switched to the left e Dh HART D N oO Channel B 2 iB 2B ANALOG INPUTS Space available for identification of inputs Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Power Supply Figure 2 7 Transmitter Label Surges Transients Connections The transmitter requires between 9 and 32 VDC to operate and provide complete functionality The DC power supply should provide power with less than 296 ripple A fieldbus segment requires a power conditioner to isolate the power supply filter and decouple the segment from other segments attached to the same power supply power to the transmitter is supplied over the signal wiring Signal wiring should be shielded twisted pair for best results in electrically noisy environments Do not use unshielded signal wiring in open trays with power wiring or near heavy electrical equipment Use ordinary copper wire of sufficient size to ensure that
14. 0 9 a sdnouo 1 NOISIAIG I 55 12 VAW IYS ATIVOISNIMINI ShOQHVZVH Snivuvddv 3dVS ATIVOISNIMLNI 031 12055 WS 331430 2 33430 5 807315 331430 57807315 Q3AO0HddV Wd SW S Q D RG ONIUSHNION3 NISIA 3unlve3dW3l 21H 30 vAOHddv 3HL INOHLIM SNOLLVSISIGOW ON 9naoud 9315999 Wd Hw Q 01 JEES 92 E NUG od Su3l3vevd AILIN3 31v Ce 8 Ol NOI 1916 2538 oI IPA S 2I ON JA1ON3ONTNON du 1816201214 02813 vas AT SLINI SISAVEVd ALLNI usc ren E 1ndNi 4007 H3MOd NOLEIOS NYL NOISI TOLLEY V 3 L Figure B 1 FM Intrinsic Safety FISCO B 13 October 201 1 Reference Manual 00809 0100 4697 Rev EA Hosemount 848T 40 2 13385 200 1 YINIVA OF 31725 10N 00 7077 87800 on oni mvaa 6070272 BEN 1800 8 2 AQ 1 19 502813 1101 S1 ONIMVHO NOLIVTVISNI Wan Q131HS OL 0311 3NIT INO 804 Nc Nd VUE ERR RE 5 ON HLIM ONILYOT4 SINI
15. 3 Set CHANNEL channels 1 to 8 Although the CHANNEL X parameters remain writable CHANNEL X can only be set X when CHANNEL 1 4 SetL TYPE to direct or indirect 5 SetXD SCALE transducer measurement scaling to the appropriate 1 11 Qut upper and lower range values the appropriate sensor units and Out_2 IN 2 Out D display decimal point Out S IN 6 SetOUT SCALE MAI output scaling to the appropriate upper and Out 4 IN 4 lower range values the appropriate sensor units and display decimal Out 5 IN 5 point Out 6 IN 9 ise 7 Place the MAI function block in auto mode Out 7 IN 7 Function nuncion 8 Place the Input Selector ISEL function block in OOS mode by Block JE Out ee es setting MODE_BLK TARGET to OOS 9 SetOUT RANGE to match the OUT SCALE in the MAI block 10 Set SELECT TYPE to the desired function Maximum Value Minimum Value First Good Value Midpoint Value or Average Value 11 Set the alarm limits and parameters if necessary 12 Place the ISEL function block in auto mode 13 Verify that the function blocks are scheduled Measuring Temperature Points Individually Example Miscellaneous monitoring of temperature in a close proximity where each channel can have different sensor inputs with different units and there are independent alarm levels for each input 1 Place the first Analog Input Al function block in OOS mode set Al MODE BLK TARGET to OOS aan
16. E DELL Verre page 1 2 Service Support page 1 3 Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations Information that potentially raises safety issues is indicated by a warning symbol A Please refer to the following safety messages before performing an operation preceded by this symbol Failure to follow these installation guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Process leaks could result in death or serious injury Donotremove the thermowell while in operation Removing while in operation may cause process fluid leaks Install and tighten thermowells and sensors before applying pressure or process leakage may result Electrical shock could cause death or serious injury fthe sensor is installed in a high voltage environment and a fault condition or installation error occurs high voltage may be present on transmitter leads and terminals Use extreme caution when making contact with the leads and terminals EMERSON WWW rosemount com Process Management Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 OVERVIEW Transmitter Manual The Rosemount 848T is optimal for process temperature measurement because of its ability to simultaneously measure eight separate
17. Output T code Ambient temperature F 2 3 Parameters T4 Terminals of power loop 1 2 50 C lt Ta lt 60 C Maximum Output Output Voltage Maximum Maximum V Output Current Output Power Maximum external lo mA Po mW parameters Co uF Lo H F 30 300 1 3 2 1 0 F FISCO 17 5 380 5 32 2 1 0 NOTE Non FISCO parameters listed above must be derived from a linear supply with a resistance limited output Terminals of sensor Maximum Maximum Maximum Output Terminals Output Voltage Output Current Output Power Maximum external U V I mA Po mW parameters Co uF Lo F 1 8 12 5 4 8 15 1 2 1 2 4 The product complies to the requirements for FISCO field devices specified in IEC60079 27 2008 For the connection of an intrinsically safe circuit in accordance FISCO model FISCO parameters of this product are as above 2 5 The product should be used with Ex certified associated apparatus to establish explosion protection system that can be used in explosive gas atmospheres Wiring and terminals should comply with the instruction manual of the product and associated apparatus 2 6 The cables between this product and associated apparatus should be shielded cables the cables must have insulated shield The shielded cable has to be grounded reliably in non hazardous area B 9 Hos
18. publishes the data to all devices on the fieldbus Any device that is configured to receive the data is called a subscriber LAS Schedule 2 Device X Device Y Device Z LAS Link Active Scheduler P Publisher S Subscriber CD Compel Data DT Data Transfer Packet Figure C 5 diagrams an unscheduled transfer Unscheduled transfers are used for things like user initiated changes including set point changes mode changes tuning changes and upload download Unscheduled transfers use either report distribution or client server type of reporting for transferring data of the devices on the FOUNDATION fieldbus are given a chance to send unscheduled messages between transmissions of scheduled data The LAS grants permission to a device to use the fieldbus by issuing a pass token PT message to the device When the device receives the PT it is allowed to send messages until it has finished or until the maximum token hold time has expired whichever is the shorter time The message may be sent to a single destination or to multiple destinations LAS Schedule X Y Z Device X Device Y Device Z P Publisher S Subscriber PT Pass Token M Message C 7 Reference Manual 00809 0100 4697 Rev EA Hosemount 848T October 2011 Function Block Figure C 6 shows an example of a link schedule A single iteration of the Scheduling link wide schedule is called the macrocycle When the system is configure
19. that pertain to Validation Configuration functions 3 18 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Table 3 10 Transducer Block Parameters Number Parameter Description 48 VALIDATION SNSR2 VALUES Validation value parameters Please see tables below for a list of sub parameters that pertain to Validation values 49 VALIDATION SNSR3 CONFIG Validation configuration parameters Please see tables below for a list of sub parameters that pertain to Validation Configuration functions 50 VALIDATION SNSR3 VALUES Validation value parameters Please see tables below for a list of sub parameters that pertain to Validation values 51 VALIDATION SNSR4 CONFIG Validation configuration parameters Please see tables below for a list of sub parameters that pertain to Validation Configuration functions 52 VALIDATION SNSR4 VALUES Validation value parameters Please see tables below for a list of sub parameters that pertain to Validation values 53 VALIDATION SNSR5 CONFIG Validation configuration parameters Please see tables below for a list of sub parameters that pertain to Validation Configuration functions 54 VALIDATION SNSR5 VALUES Validation value parameters Please see tables below for a list of sub parameters that pertain to Validation values 55 VALIDATION SNSR6 CONFIG Validation configuration parameters Please see tables below for a list of sub parameters that pertain
20. 2 91902 121A30 10V WAS 19 VL 119110 lfidNI 391A3Q0 01311 awis ans Q31VvI20SSV SnlvuvddV IN 31081 SI 9NIMOTIO3 FHL N3HM S iVuvdaV Q31VI2OSSV HLIM Snivuvdav 3AIQN3ONINON dO NOIL23NNO2N3INI SMOTIV 1d32NOD ALIIN3 JHL 91980 1 91 31902 231A30 11 WAS 11 INAWNdINOF SIHL 9NITIVISNI N3HM 03201104 38 ISAW 9NIMYUO NOIIVTTVISNI S u3un12V J0NVW SnlVvuvddV Q31VI20SSV NOISIAIQ ALL TIGVLINS HIVdWI AVW SIN3NOdWOO 30 NOILNLILSENS ONINUVM 0 01 s 258 5 01 5 2 06 1 23A 10N32N NON STVNINYSL YOSNIS 17 OL 031749 JONVLONGNI ONY 3ONVIIOVaY TVLOL 1 1 15 7077 87800 3009 17218123114 1VNOIIVN 3Hl HIIM 3ONVQUOOOV NI V3uv Gaidissv ToNn OL Vd3N ISNV i8 GINOHS NOIIVTIVISNI 3PA YO SWIA OGZ 340W 31vH3N39 YO 351 LON LSNW Hu3luuv8 Ol Q3123NNOO LNAWdINOT 1041NO9 33MOd LIINNOISIG O9NI2IAUJS 340118 s3u3HdSOWIV 31811908402 YO 318VWWV1j 30 NOILINO IN3A38d OL 9NINUVM SiVAOuddV lvAOuddv 0184 LNOHLIM ONIMYVUO OL NOISIA3U ON 2 8 sdnouo Z NOISIAIG I SSV719 M03 3AIN3ONINON v3uv SnoquvzvH SniVuvddav 3AKIN39NINON 03112055 Q3AOHddV 331430 30123NNO2 NOI140 2005
21. Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table D 4 Multiple Analog Input Function Block Parameters Number Parameter Units Description 19 XD SCALE None The high and low scale values engineering units code and number of digits to the right of the decimal point associated with the channel input value The XD SCALE units code must match the units code of the measurement channel in the transducer block If the units do not match the block will not transition to MAN or AUTO It will automatically change units in the STB block to the last one written Multiple blocks reading the same channel may conflict only one unit type per channel 20 OUT SCALE None The high and low scale values engineering unit code and number of digits to the right of the decimal point associated with OUT 21 GRANT DENY None Options for controlling access of host computers and local control panels for operating tuning and alarm parameters of the block Not used by device 22 lO OPTS None Allows the selection of input output options used to alter the PV Low cutoff enabled is the only selectable option 23 STATUS OPTS None Allows the user to select options for status handling and processing The options supported in the MAI block are the following Propagate fault forward Uncertain if limited Badif limited Uncertain if manual mode 24 L TYPE None Linearization type Determines whether the
22. NOTE NJ is valid with 5001 and S002 Input Types Table B 15 IECEx Approved Entity Parameters Power Bus Sensor U 42 4 Up 5 Vdc Ci 0 lo 2 5 mA 0 1000 uF Lo 1000 mH Special Conditions of Safe Use 1 The component must be housed in a suitable component certified enclosure that provides a degree of protection of at least IP54 and meets the relevant material and environmental requirements of IEC 60079 0 2004 amp IEC 60079 15 2005 2 Provision must be made external to the component to ensure the rated voltage of the component supply is not exceeded by transient disturbances of more than 40 3 electrical circuit is connected directly to earth this must be taken into account when installing the component Reference Manual 00809 0100 4697 Rev EA October 2011 Hosemount 848T China NEPSI Certifications I3 Intrinsic Safety Ex IIC 4 Certification Number GYJ111365X Special Conditions for Safe Use x 2 1 Only when temperature transmitter is installed in IP 20 GB4208 2008 housing it could be used in hazardous location The metallic housing should observe the requirements of GB3836 1 2000 Clause 8 The non metallic housing should observe the requirements of GB3836 1 2000 Clause 7 3 This apparatus is not capable of withstanding the 500V rms insulation test required by Clause 6 4 12 of GB3836 4 2000 2 2 The ambient temperature range is
23. Using Cable Glands 2 12 Simulation D 10 Shield Wire Using Conduit Entries 2 12 Status Handling D 13 Ground isis 2 8 Simulate Enable Switch 2 10 Specifications J N f 4 Junction Box Network Communication C 4 S Pe UNS 2 7 Mounting 2 2 Addressing C 6 Slice 2 10 Function Block Scheduling 8 PRAA 2 10 L Link Active Scheduler C 4 BLA 2 10 Link Active Scheduler C 4 reece NUR Backup LAS C 6 HS AP RTI TANSI 1 LAS Parameters C 5 o Tagging EEDE 2 11 Overview 1 2 211 M FOUNDATION Fieldbus C 1 Sensor 2 11 Maintenance VES Transmitter 2 11 Manual 1 2 Hardware 4 3 Transmitter 1 2 Transducer Block Communication Check 4 8 1 07 77 tjt 00007 Alarm Detection 3 17 Power Check 4 3 Channel Definitions 3 15 Reset Configuration 4 3 P EITOIS eee ace 3 16 Sensor Check 4 3 Performance specifications A 4 3 16 Measurement Transducer Block Power Supply 2 7 Automatic 3 17 Parameters 3 17 Connections 2 7 Out of Service 3 17 Monitoring Applications Status Handling 3 17 Common Configurations R Transients 2 7 s Pa or F Resource Block Transmitter Mi Pee ae SEE Alarm Detection 3 11 Configuration 3 2 M
24. millimeters Stainless Steel Junction Box Cable Gland option code JS2 Top View 3 D View 9 91 231 7 7 196 Front View Side View 1 8 46 9 14 232 2 1 1 28 7 72 196 1 73 44 c x ul m 4 0 102 1 8 47 Dimensions in inches millimeters A 9 Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 Aluminum Plastic Junction Box Conduit Entry option codes Top View 3 D View 10 2 260 Front View Side View 157 40 2 44 62 10 2 260 UTI Five Plugged 0 86 in diameter holes suitable for installing 12 in NPT fittings Dimensions are in inches millimeters Stainless Steel Junction Box Conduit Entry option code JS3 Top View 3 D View 9 1 231 7 7 196 9 Ground Screw Front View 1 2 30 2 4 62 1 6 42 1 8 4 7 Five Plugged 0 86 in diameter holes suitable for installing 2 in NPT fittings Dimensions are in inches millimeters A 10 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Mounting Options Aluminum Plastic Junction Box styles JA and JP Front View Side View 54 6 6 167 fully 130 assembled 3 Stainless Stee
25. when installed per Rosemount drawing 00848 4404 Temperature Code 4 Tamb 40 to 60 Non Incendive for use in Class Division 2 Groups A B C D suitable for use with Non Incendive field wiring when installed in accordance with Rosemount Drawing 00848 4404 Temperature Code Tamb 40 to 85 T5 Tamb 40 to 70 C Rosemount Enclosure Required Indoor Hazardous Classified Locations Table B 1 FM Approved Entity Parameters Power Bus Sensor Vmax 30 V Voc 125 V Imax 300 mA lgc 4 8 mA 1 3 15 mW 2 1 1 2 G 0 LA 1H 1 Entity parameters apply to entire device not individual sensor channels Table B 2 Entity Parameters for Non Incendive Field Wiring Power Bus Sensor Vmax 42 4 V Voc 12 5 V C 2 1nF Isc 4 8 mA L 0 P 15 mW Ca 1 2 pF La 1H 1 Entity parameters apply to entire device not individual sensor channel EMERSON www rosemount com Process Management Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 B 2 IE FISCO Fieldbus Intrinsically Safe Concept Intrinsic Safety Intrinsically safe for use in Class Division 1 Groups A B C D when installed in accordance with Rosemount Drawing 00848 4404 Temperature Code T4 Tamb 40 to 60 C Non incendive for use in Class Division 2 Groups A B
26. 1 Multiple Analog Input MAI Function Block page D 9 Input Selector Function Block page D 15 ANALOG INPUT The Analog Input function block processes field device measurements FUNCTION BLOCK and makes them available to other function blocks The output value from the Al block is in engineering units and contains a status indicating the quality of the measurement The measuring device may have several measurements or derived values available in different channels Use the channel number to define the variable that the block processes OUT The AI block supports alarming signal scaling signal filtering signal status calculation mode control and simulation In Automatic mode the block s output parameter OUT reflects the process variable PV value and status In Manual mode OUT may be set manually The Manual mode is reflected on Out The block output value and status the output status A discrete output OUT D is provided to indicate whether a Out D Discrete output that signals a selected alarm condition is active Alarm detection is based on the OUT value selected alarm condition and user specified alarm limits The block execution time is 30 ms Table D 1 Analog Input Function Block Parameters Number Parameter Units Description 01 ST REV None The revision level of the static data associated with the function block The revision value will be incremen
27. 18 FEATURE SEL Used to select resource block options 19 CYCLE TYPE Identifies the block execution methods available for this resource The supported cycle types are SCHEDULED and COMPLETION OF BLOCK EXECUTION 20 CYCLE SEL Used to select the block execution method for this resource 21 MIN CYCLE T Time duration of the shortest cycle interval of which the resource is capable 22 MEMORY SIZE Available configuration memory in the empty resource To be checked before attempting a download 23 NV CYCLE T Minimum time interval specified by the manufacturer for writing copies of NV parameters to non volatile memory Zero means it will never be automatically copied At the end of NV CYCLE only those parameters which have changed need to be updated in NVRAM 24 FREE SPACE Percent of memory available for further configuration Zero in preconfigured resource 25 FREE TIME Percent of the block processing time that is free to process additional blocks 26 SHED RCAS Time duration at which to give up on computer writes to function block RCas locations Shed from RCas will never happen when SHED RCAS 0 27 SHED ROUT Time duration at which to give up on computer writes to function block ROut locations Shed from ROut will never happen when SHED 0 9 7 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table 3 2 Resource Block Parameters
28. 3 Rate Change 10 Differential Sensor 2 25 Sensor 4 Rate Change 11 Differential Sensor 3 26 Sensor 5 Rate Change 12 Differential Sensor 4 27 Sensor 6 Rate Change 13 Body Temperature 28 Sensor 7 Rate Change 14 Sensor 1 Deviation 29 Sensor 8 Rate Change 15 Sensor 2 Deviation Figure 3 1 Transducer Block Data Flow Channel o p S1 9 55 5 Channel 35 I 52 Eis I 55 Channel igna S Conversion E S3 Fo Channe 2 54 _ lt 5 S5 Channel S6 i Measurement S7 Diagnostics Validation e 9 DS1 Channel 1 DS2 DS3 Channel DS4 BT Transducer Block Errors The following conditions are reported in the BLOCK_ERR and XD_ERROR parameters 3 16 Reference Manual 00809 0100 4697 Rev EA October 2011 Hosemount 848T Table 3 9 Block Transducer Error Condition Number Name and Description 0 Other 7 Input failure process variable has bad status 15 Out of service The actual mode is out of service BLOCK ERR 1 If BLOCK ERR is other then see XD ERROR Transducer Block Modes The transducer block supports two modes of operation as defined by the MODE BLK parameter Automatic Auto The block outputs reflect the analog input measurement Out of Service OOS The block is not processed Channel outputs are not updated and t
29. A bit on means that the condition is masked out from alarming 82 ADVISE ACTIVE Enumerated list of advisory conditions within a device 3 9 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table 3 2 Resource Block Parameters Number Parameter Description 83 ADVISE ALM Alarm indicating advisory alarms These conditions do not have a direct impact on the process or device integrity 84 HEALTH INDEX Parameter representing the overall health of the device 100 being perfect and 1 being non functioning The value will be set based on the active PWA alarms in accordance with the requirements stated in Device Alerts and Health Index PlantWeb Implementation Rules Each device may implement its own unique mapping between the PWA parameters and HEALTH INDEX although a default mapping will be available based on the following rules HEALTH INDEX will be set based on the highest priority PWA ACTIVE bit as follows FAILED ACTIVE 0 to 31 HEALTH INDEX 10 ACTIVE 29 to 31 HEALTH INDEX 20 ACTIVE 26 to 28 HEALTH INDEX 30 ACTIVE 19 to 25 HEALTH INDEX 40 ACTIVE 10 to 16 HEALTH INDEX 50 MAINT ACTIVE 5 to 9 HEALTH INDEX 60 MAINT ACTIVE 0 to 4 HEALTH INDEX 70 ADVISE ACTIVE 16 to 31 HEALTH INDEX 80 ADVISE ACTIVE 0 to 15 HEALTH INDEX 90 NONE HEALTH INDEX 100 85 PWA SIMULATE Allows direct writes to the PlantWeb Alert ACTIV
30. C D suitable for use with non incendive field wiring when installed in accordance with Rosemount Drawing 00848 4404 Temperature Code Tamb 40 to 85 T5 Tamb 40 to 70 C Table B 3 Entity Parameters Power Bus Sensor Vmax 17 5 V Voc 12 5 V Imax 380 mA Isc 4 8 mA 5 32 W 15 mW 2 1nF Ca 1 2 uF Li 0 La 1H 1 Entity parameters apply to entire device not individual sensor channels N5 Dust Ignition Proof For use in Class Ill Division 1 Groups F G Class Division 2 Groups A B C D Non incendive for Class 1 Division 2 Groups A B C D when installed to Rosemount Control Drawing 00848 4404 Rosemount Enclosure Required Valid with both S001 and S002 options Temperature Code Tamb 40 to 85 C T5 Tamb 40 to 70 C NK Non Incendive for use in Class Division 2 Groups A B C D suitable for use with Non Incendive field wiring when installed in accordance with Rosemount Drawing 00848 4404 Temperature Code Tamp 40 to 85 C T5 Tamb 40 to 70 C Rosemount Enclosure Required Indoor Hazardous Classified Locations Table B 4 FM Approved Entity Parameters 1 intrinsically safe and non incendive parameters Power Bus Sensor Vmax 42 4 V 12 5 V Cj 2 1 pF lgc 4 8 mA Li 0H 15 mW Ca 1 2 uF La 1H Referenc
31. Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations Information that potentially raises safety issues is indicated by a warning symbol A Please refer to the following safety messages before performing an operation preceded by this symbol Failure to follow these installation guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Process leaks could result in death or serious injury Donotremove the thermowell while in operation Removing while in operation may cause process fluid leaks Install and tighten thermowells and sensors before applying pressure or process leakage may result Electrical shock could cause death or serious injury If the sensor is installed in a high voltage environment and a fault condition or installation error occurs high voltage may be present on transmitter leads and terminals Use extreme caution when making contact with the leads and terminals EMERSON WWW rosemount com Process Management Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 2011 CONFIGURATION Standard Table 3 1 Standard Configuration Settings Transmitter Configuration Custom Configuration Methods 3 2 Each FOUNDATION fieldbus configuration tool or host system has a different way of displaying and performing configurations
32. Manual 00809 0100 4697 Rev EA October 2011 Hosemount 848T Accuracy Table 1 Input Options Accuracy Input Ranges Accuracy Over Range s Sensor Option Sensor Reference F SE 2 and 3 Wire RTDs Pt 50 a 0 00391 GOST 6651 94 200 to 550 328 to 1022 0 57 1 03 100 0 00391 GOST 6651 94 200 to 550 328 to 1022 0 28 0 50 Pt 100 a 0 00385 IEC 751 0 00385 1995 200 to 850 328 to 1562 0 30 0 54 Pt 100 a 0 003916 JIS 1604 1981 200 to 645 328 to 1193 0 30 0 54 Pt 200 a 0 00385 IEC 751 0 00385 1995 200 to 850 328 to 1562 0 54 0 98 Pt 200 0 003916 JIS 1604 0 003916 1981 200 to 645 328 to 1193 0 54 0 98 Pt 500 IEC 751 0 00385 1995 200 to 850 328 to 1562 0 38 0 68 Pt 1000 IEC 751 0 00385 1995 200 to 300 328 to 572 0 40 0 72 Ni 120 Edison Curve No 7 70 to 300 94 to 572 0 30 0 54 Cu 10 Edison Copper Winding No 15 50 to 250 58 to 482 3 20 t5 76 Cu 100 428 GOST 6651 94 185 to 200 365 to 392 0 48 50 86 Cu 50 a 428 GOST 6651 94 185 to 200 365 to 392 0 96 1 73 Cu 100 a 426 GOST 6651 94 50 to 200 122 to 392 0 48 50 86 Cu 50 426 GOST 6651 94 50 to 200 122 to 392 0 96 1 73 Thermocouples Cold Junction Adds 0 5 C to Listed Accuracy NIST Type B Accuracy vari
33. Mode Typically BLOCK ERR will show Power Up for all blocks that are not scheduled Schedule the block to execute Process and or block Features FEATURES SEL does not have Alerts enabled Enable the Alerts bit alarms will not work Notification LIM NOTIFY is not high enough Set equal to MAX NOTIFY Alarm not linked to host Value of output does not Status Options Linearization Type STATUS OPTS has Propagate Fault Forward bit set This should be cleared to cause an alarm to occur L TYPE must be set to Direct Indirect or Indirect Square Root and cannot be left at initial value of 0 Scaling Scaling parameters are set incorrectly XD SCALE EUO and EU100 should match that of the transducer block channel value e OUT SCALE EUO and EU100 are not set properly Both STB on each asic used must by in auto Cannot set LIMIT HI HI LIMIT LO LIMIT or LO LO LIMIT Values Scaling Limit values are outside the OUT SCALE EUO and OUT SCALE EU100 values Change OUT SCALE or set values within range D 8 Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T MULTIPLE ANALOG The Multiple Analog Input MAI function block has the ability to process up to INPUT MAI FUNCTION eight field device measurements and make them available to other function BLOCK blocks The output values from the MAI block are in engineering units and contain a status indicating the quality of the measuremen
34. Selector Function Block D 15 Multiple Analog Input 0 9 Scheduling C 8 G Grounding 2 8 Analog Device 2 9 Grounded Thermocouple 2 9 Shielded Wire 2 8 Transmitter Enclosure 2 9 Ungrounded mV 2 8 Ungrounded RTD Ohm 2 8 Ungrounded Thermocouple 2 8 H Hardware Maintenance 4 3 Communication Check 4 3 Power Check 4 3 Reset Configuration 4 3 Sensor Check 4 3 Input Selector Function Block D 15 Alarm Detection D 18 Application Information D 19 Block Execution D 19 EITOIS cs 2 Gots D 17 Functionality D 17 Index 1 Reference Manual 00809 0100 4697 Rev EA Hosemount 848T October 2011 Modes D 18 Modes D 13 Senor Automatic D 18 Automatic D 13 Connection Check 4 3 Manual D 18 Manual D 13 Sensor Out of Service D 18 Out of Service D 13 tx bed 2 11 Parameters D 15 Parameters D 9 Sensor Transducer Block Status Handling D 19 Signal Conversion D 11 Change Sensor Configuration Troubleshooting D 20 Direct D 11 3 21 Installation 2 12 Indirect D 12 Sensor Calibration 3 21 Intrinsically Safe B 9 Indirect Square Root D 12 Troubleshooting 4 4 Non Incendive B 9 Modes D 13 Sensor Wiring Diagram 2 4
35. Structure SENSOR CONFIG STRUCTURE Parameter SENSOR MODE SENSOR TAG SERIAL NUMBER SENSOR DAMPING Sampling Interval used to smooth output using a first order linear filter A value entered between 0 and the Update Rate will result in a damping value equal to the Update Rate INPUT TRANSIENT FILTER Enables or Disables the option for reporting fast changing sensor inputs without temporary holdoff 0 Disable 1 Enabled RTD 2 WIRE OFFSET User entered value for constant lead wire resistance correction in a 2 wire RTD and Ohm sensor types ENG UNITS The engineering units used for reporting measured sensor values UPPER RANGE The upper sensor limit for the selected sensor is displayed using Units Index sub parameter LOWER RANGE The lower sensor limit for the selected sensor is displayed using Units Index sub parameter 3 20 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Table 3 13 SENSOR STATUS Sub Parameter Structure Table 3 14 SENSOR CAL Sub Parameter Structure Table 3 15 CAL STATUS Structure Table 3 16 Transducer Status Sub Parameter Structure Sensor Status Table 0x00 Active 0x01 Out of Service 0x02 Inactive 0x04 Open 0x08 Short 0x10 Out of Range 0x20 Beyond Limits 0x40 Excess EMF Detected 0x80 Other SENSOR CALIBRATION STRUCTURE Parameter Description SEN
36. TemperatureC Temperature Range C RTD Pt 50 0 00391 0 004 0 0072 F NA Pt 100 a 0 00391 0 002 C 0 0036 F NA Pt 100 o 0 00385 0 003 C 0 0054 F NA Pt 100 a 0 003916 0 003 C 0 0054 F NA Pt 200 a 0 003916 0 004 C 0 0072 F NA Pt 200 a 0 00385 0 004 C 0 0072 F NA Pt 500 0 003 C 0 0054 F NA Pt 1000 0 003 C 0 0054 F NA Cu 10 0 03 C 0 054 F NA Cu 100 a 428 0 002 C 0 0036 F NA Cu 50 a 428 0 004 C 0072 F NA Cu 100 a 426 0 002 C 0 0036 F NA Cu 50 a 426 0 004 C 0072 F NA Ni 120 0 003 0 0054 F NA Thermocouple the value of the reading Type B 0 014 C R2 1000 0 032 C 0 002595 of 300 300 lt R lt 1000 0 054 0 011 of 100 100 lt R lt 300 Type E 0 005 C 0 00043 of All Type J DIN Type L 0 0054 0 00029 of R20 0 0054 C 0 002595 of R R 0 Type K 0 0061 0 00054 of R R20 0 0061 C 0 002595 of RI R 0 Type N 0 0068 C 0 00036 of All Type R Type S 0 016 e R2 200 0 023 C 0 003696 of R 200 Type T DIN Type U 0 0064 R20 0 0064 C 0 004395 of R R 0 GOST Type L 0 007 e R20 0 007 C 0 003 of IRI lt 0 Millivolt 0 0005 mV NA 2 and 3 wire Ohm 0 0084 ohms NA 4 20 mA Rosemount 0 0001 mA NA 4 20 mA NAMUR 0 0001 m
37. VDC max Not valid with S002 option Table B 6 CSA Approved Entity Parameters Power Bus Sensor U 17 5 V 12 5 V li 380 mA lec 4 8mA Pj 5 32 W 15 mW C 24nF C4 12 pF Li 0 L 1H 1 Entity parameters apply to entire device not individual sensor channels B 3 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 European Approvals B 4 N6 Class Division 2 Suitable for use in Class Division 2 Groups A B C D when installed per Rosemount drawing 00848 4405 Temperature Code T3C 50 lt Ta lt 60 C Must be installed in a suitable enclosure as determined acceptable by the local inspection authority ATEX Certifications 11 Intrinsic Safety Certification Number Baseefa09ATEX0093X ATEX Marking Il 1 G ia IIC 4 Tamb 50 to 60 C ce 1180 Table B 7 ATEX Approved Entity Parameters Power Bus Sensor U 30 V U 12 5 V lj 300 mA l 4 8 mA Pj 13W 15mW 0 1 2 uF Li 0 Li 1H 1 Special Conditions for Safe Use x This apparatus must be installed in an enclosure which affords it a degree of protection of at least IP20 Non metallic enclosures must have a surface resistance of less than 1Gohm Light alloy or zirconium enclosures must be protected from impact and friction when installed The apparatus will not meet the 500V rms isolation test req
38. all configurable parameters The target mode of a block may be restricted to one or more of the supported modes Status Handling Normally the status of the PV reflects the status of the measurement value the operating condition of the I O card and any active alarm condition In Auto mode OUT reflects the value and status quality of the PV In Man mode the OUT status constant limit is set to indicate that the value is a constant and the OUT status is Good If the sensor limit exceeds the high or low side range PV status is set high or low and EU range status is set to uncertain In the STATUS OPTS parameter select from the following options to control the status handling BAD if Limited Sets the OUT status quality to Bad when the value is higher or lower than the sensor limits Uncertain if Limited Sets the OUT status quality to Uncertain when the value is higher or lower than the sensor limits Uncertain if in Manual mode The status of the Output is set to Uncertain when the mode is set to Manual NOTES 1 The instrument must be OOS to set the status option 2 TheMAI block only supports the BAD if Limited option D 13 Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 Application Information The intended use for this type of function block is for applications where the sensor types and functionality of each channel i e the simulate scaling filtering alarms type and options a
39. blocks and do not appear as normal input and output parameters However they may be accessed and modified remotely as specified by the function block Input events may affect the operation of the algorithm An execution control function regulates the receipt of input events and the generation of output events during execution of the algorithm Upon completion of the algorithm the data internal to the block is saved for use in the next execution and the output data is snapped releasing it for use by other function blocks A block is a tagged logical processing unit The tag is the name of the block System management services locate a block by its tag Thus the service personnel need only know the tag of the block to access or change the appropriate block parameters Function blocks are also capable of performing short term data collection and storage for reviewing their behavior Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T DEVICE DESCRIPTIONS BLOCK OPERATION Instrument Specific Function Blocks Alerts Device Descriptions DD are specified tool definitions that are associated with the Resource and Transducer Blocks Device descriptions provide the definition and description of the function blocks and their parameters To promote consistency of definition and understanding descriptive information such as data type and length is maintained in the device description Device Descriptions are w
40. due to multiple devices on one pair of wires Increased supplier selection due to interoperability Reduced loading on control room equipment due to the distribution of some control and input output functions to field devices FOUNDATION fieldbus devices work together to provide I O and control for automated processes and operations The Fieldbus FOUNDATION provides a framework for describing these systems as a collection of physical devices interconnected by a fieldbus network One of the ways that the physical devices are used is to perform their portion of the total system operation by implementing one or more function blocks Function blocks perform process control functions such as analog input Al and analog output AO functions as well as proportional integral derivative PID functions The standard function blocks provide a common structure for defining function block inputs outputs control parameters events alarms and modes and combining them into a process that can be implemented within a single device or over the fieldbus network This simplifies the identification of characteristics that are common to function blocks EMERSON WWW rosemount com Process Management Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Figure C 1 Function Block Internal Structure C 2 The Fieldbus FOUNDATION has established the function blocks by defining a small set of parameters used in all fun
41. field value is uses directly Direct is converted linearly Indirect or is converted with the square root Indirect Square Root 25 LOW CUT 96 If percentage value of the sensor transducer input falls below this PV 0 26 PV FTIME Seconds The time constant of the first order PV filter It is the time required for a 6396 change in the IN value 27 28 29 CHANNEL 1 2 None The CHANNEL 1 2 3 4 5 6 7 8 value is used to select the measurement 30 31 32 3 4 5 6 7 8 value See Table D 4 on page D 6 for available channels Configure the CHANNEL 33 34 parameters to custom 2 before configuring the CHANNEL parameters 35 36 37 STDDEV_ 1 2 3 96 of OUT Range Standard deviation of the corresponding measurement 38 39 40 4 5 6 7 8 41 42 43 44 45 CAP STDDEV 1 96 of OUT Range Capability standard deviation the best deviation that can be achieved 46 47 48 2 3 4 5 6 7 8 49 50 Functionality Simulation D 10 To support testing either change the mode of the block to manual and adjust the output value or enable simulation through the configuration tool and manually enter a value for the measurement value and its status this single value will apply to all outputs In both cases first set the ENABLE jumper on the field device NOTE All FOUNDATION fieldbus instruments have a simulation jumper As a safety measure the jumper has to be reset every time there is a power interruption This meas
42. g CD PT When a published value is requested using the CD command the MRD defines how long before the device publishes the data Increasing this parameter will slow down the bus traffic by decreasing how fast CDs can be put onto the network The MRD is measured in units of ST Time Synchronization Class TSC A variable that defines how long the device can estimate its time before drifting out of specific limits The LM will periodically send out time update messages to synchronize devices on the segment Decreasing the parameter number increases the number of times that time distribution messages must be published increasing bus traffic and overhead for the LM device See Figure C 3 MID 1 Data MID FB2 MID x ST C 5 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Addressing Scheduled Transfers C 6 Backup LAS A LM device is one that has the ability to control the communications on the bus The LAS is the LM capable device that is currently in control of the bus While there can be many LM devices acting as backups there can only be one LAS The LAS is typically a host system but for stand alone applications a device may be providing the role of primary LAS To setup configure and communicate with other devices on a segment a device must be assigned a permanent address Unless requested otherwise itis assigned a temporary addres
43. parameter to be set 39 STDDEV 96 of OUT Range Standard deviation of the measurement for 100 macrocycles 40 CAP STDDEV 96 of OUT Range Capability standard deviation the best deviation that can be achieved Functionality Simulation To support testing either change the mode of the block to manual and adjust the output value or enable simulation through the configuration tool and manually enter a value for the measurement value and its status In simulation the ENABLE jumper must be set on the field device NOTE All FOUNDATION fieldbus instruments have a simulation jumper As a safety measure the jumper has to be reset every time there is a power interruption This measure is to prevent devices that went through simulation in the staging process from being installed with simulation enabled With simulation enabled the actual measurement value has no impact on the OUT value or the status Figure D 1 Analog Input Function Block Timing Diagram OUT mode in man OUT mode in auto 63 of Change FIELD VAL M Time seconds PV FTIME D 3 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Figure D 2 Analog Input Function Block Schematic Analog Measurement ALM SEL Access Analog HI HI LIM HI LIM Alarm LO LO LIM Detection D 4 Status Calc STATUS OPTS FIELD VAL IO OPTS OUT SCALE XD SCALE OUT Bloc
44. quality to Good when the selected input status is Uncertain Uncertain if in Manual mode The status of the Output is set to Uncertain when the mode is set to manual NOTE The instrument must be to OOS to set the status option Application Information Use the ISEL function block to Select the maximum temperature input from eight inputs and send it to another function block see Figure D 6 Calculate the average temperature of the eight inputs see Figure D 7 Use only six of the eight inputs to calculate the average temperature D 19 Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 Figure D 6 Input Selector Function Block Application IN1 126 F Input Sel E z put Se ector Example SEL TYPE max IN2 118 FF uneon IN3 104 Fim To Another IN4 107 FF Core i Function Block Figure D 7 Input Selector Function Block Application Example SEL_TYPE average AVG_USE 6 ISEL Block Troubleshooting IN5 112 FI IN6 115 F 7 130 F 7 IN8 140 F SEL max disi H IN2 118 FI Block IN3 104 FI INA 107 FD OUT 118 F 7 IN5 112 FI ING 115 F 7 IN7 130 AVG USE 6 IN8 140 F SEL avg To Another Function Block To determine OUT for a 6 input reading read all eight sort in numerical order drop the highest and lowest values and calculate the average 107 112 115 118 126 1
45. range D 20 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Index Numerics 2 Inch Pipe Stand Mounting 2 3 Alarms Configuration 3 3 Analog Input Configuration Ground Analog Input Function Block Advanced Features Alarm Detection Application Information Block Errors Configuration Direct Filtering Functionality Indirect Indirect Square Root Modes Automatic Manual Out of Service Parameters Signal Conversion Simulation Status Handling Troubleshooting Wiring Diagram IOUUUUUUUUUUUUUGGUUUCUCUINc 000001 amp 0 gt B Block Operation C 3 Alerts C 3 Instrument Specific Blocks C 3 Cable Glands Installation 2 12 Commissioning 4 2 AG gins 2 11 Conduit Entries 2 12 Configuration 3 2 Alarms 3 3 Analog Transmitters 3 6 Analog Input Block 3 6 Multiple Analog Input Block 3 6 Block 3 7 5 3 2 Damping 3 3 Differential Sensor Blocks 3 3 Methods 3 2 Monitoring Applications Single Selection 3 4 Typical 3 4 Reset
46. the other devices will be given one of the four available temporary addresses If a temporary address is not available the device will be unavailable until a temporary address becomes available Use the host system documentation to commission a device and assign a permanent address Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T HARDWARE MAINTENANCE Sensor Check Communication Power Check Resetting the Configuration RESTART The 848T has no moving parts and requires a minimal amount of scheduled maintenance If a malfunction is suspected check for an external cause before performing the diagnostics presented below AN To determine whether the sensor is causing the malfunction connect a sensor calibrator or simulator locally at the transmitter Consult an Emerson Process Management representative for additional temperature sensor and accessory assistance If the transmitter does not communicate or provides an erratic output check for adequate voltage to the transmitter The transmitter requires between 9 0 and 32 0 VDC at the terminals to operate with complete functionality Check for wire shorts open circuits and multiple grounds There are two types of restarts available in the Resource Block The following section outlines the usage for each of these For further information see RESTART in Table 3 2 on page 3 6 Restart Processor cycling Performing a Restart Processor has the sa
47. the function block 38 DUAL SENSOR 2 CONFIG Parameter structure to allow for calibration of each differential measurement Please see tables below for a list of sub parameters that pertain to Dual Sensor Calibration functions 39 DUAL SENSOR VALUE 2 The measured value and status available to the function block 40 DUAL SENSOR 3 CONFIG Parameter structure to allow for calibration of each differential measurement Please see tables below for a list of sub parameters that pertain to Dual Sensor Calibration functions 41 DUAL SENSOR VALUE 3 The measured value and status available to the function block 42 DUAL SENSOR 4 CONFIG Parameter structure to allow for calibration of each differential measurement Please see tables below for a list of sub parameters that pertain to Dual Sensor Calibration functions 43 DUAL SENSOR VALUE 4 The measured value and status available to the function block 44 DUAL SENSOR STATUS Status of each individual differential measurement Please see tables below for a list of possible Dual Sensor statuses 45 VALIDATION SNSR1 CONFIG Validation configuration parameters Please see tables below for a list of sub parameters that pertain to Validation Configuration functions 46 VALIDATION SNSR1 VALUES Validation value parameters Please see tables below for a list of sub parameters that pertain to Validation values 47 VALIDATION SNSR2 CONFIG Validation configuration parameters Please see tables below for a list of sub parameters
48. when a parameter crosses a threshold Alarms not only report a status change when a block leaves a particular state but also report when it returns back to that state Figure C 2 illustrates a simple fieldbus network consisting of a single segment link Basic Devices and or link master devices All links have one Link Active Scheduler LAS The LAS operates as the bus arbiter for the link The LAS does the following recognizes and adds new devices to the link removes non responsive devices from the link distributes Data Link Time DL and Link Scheduling Time LS on the link DL is a network wide time periodically distributed by the LAS to synchronize all device clocks on the bus LS time is a link specific time represented as an offset from DL It is used to indicate when the LAS on each link begins and repeats its schedule It is used by system management to synchronize function block execution with the data transfers scheduled by the LAS polls devices for process loop data at scheduled transmission times distributes a priority driven token to devices between scheduled transmissions Any device on the link may become the LAS The devices that are capable of becoming the LAS are called Link Master devices LM All other devices are referred to as basic devices When a segment first starts up or upon failure of the existing LAS the link master devices on the segment bid to become the LAS The link master that w
49. with each report Transfers of this type are queued They are delivered to the receivers in the order transmitted although there may be gaps due to corrupted transfers These transfers are unscheduled and occur between scheduled transfers at a given priority Client Server This type of reporting is used for request response exchanges between pairs of devices Like Report Distribution reporting the transfers are queued unscheduled and prioritized Queued means the messages are sent and received in the order submitted for transmission according to their priority without overwriting previous messages However unlike Report Distribution these transfers are flow controlled and employ a retransmission procedure to recover from corrupted transfers Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Figure C 4 Scheduled Data Transfer Unscheduled Transfers Figure C 5 Unscheduled Data Transfer Figure C 4 diagrams the method of scheduled data transfer Scheduled data transfers are typically used for the regular cyclic transfer of process loop data between devices on the fieldbus Scheduled transfers use publisher subscriber type of reporting for data transfer The LAS maintains a list of transmit times for all publishers in all devices that need to be cyclically transmitted When it is time for a device to publish data the LAS issues a CD message to the device Upon receipt of the CD the device broadcasts or
50. 00 4697 Rev EA October 201 1 Standard Terms and Conditions of Sale can be found at www rosemount com terms of sale The Emerson logo is a trademark and service mark of Emerson Electric Co Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc SuperModule and Coplanar are trademarks of Rosemount Inc PlantWeb is a mark of one of the Emerson Process Management companies HART is a registered trademark of the HART Communications Foundation ASP Diagnostics Suite is a trademark of one of the Emerson Process Management companies Syltherm and D C are registered trademarks of Dow Corning Co Neobee M 20 is a registered trademark of Stephan Chemical Co The 3 A symbol is a registered trademark of the 3 A Sanitary Standards Symbol Council FOUNDATION fieldbus is a registered trademark of the Fieldbus Foundation Grafoil is a trademark of Union Carbide Corp All other marks are the property of their respective owners 2011 Rosemount Inc All rights reserved Rosemount Inc Rosemount Temperature GmbH Emerson Process Management Asia 8200 Market Boulevard Frankenstrasse 21 Pacific Private Limited Chanhassen MN 55317 USA 63791 Karlstein 1 Pandan Crescent T U S 1 800 999 9307 Germany Singapore 128461 T International 952 906 8888 T 49 6188 992 0 T 65 6777 8211 F 952 949 7001 F 49 6188 992 112 F 65 6777 0947 Enquiries AP EmersonProcess com www rosemount com 00809 0100 4697 Rev EA 10 11 Beiji
51. 01 1 PERFORMANCE SPECIFICATIONS 4 FUNCTION BLOCKS Analog Input Al Processes the measurement and makes it available on the fieldbus segment Allows filtering alarming and engineering unit changes Input Selector ISEL Used to select between inputs and generate an output using specific selection strategies such as minimum maximum midpoint or average temperature Since the temperature value always contains the measurement status this block allows the selection to be restricted to the first good measurement Multiple Analog Input Block MAI The MAI block allows the eight Al blocks to be multiplexed together so they serve as one function block on the H1 segment resulting in greater network efficiency Stability 0 1 of reading or 0 1 C 0 18 F whichever is greater for 2 years for RTDs 0 1 of reading or 0 1 C 0 18 F whichever is greater for 1 year for thermocouples Self Calibration The transmitter s analog to digital circuitry automatically self calibrates for each temperature update by comparing the dynamic measurement to extremely stable and accurate internal reference elements Vibration Effect Transmitters are tested to high pipeline vibration specification per IEC 60770 1 1999 with no effect on performance Electromagnetic Compatibility Compliance Testing Meets the criteria under IEC 61326 2006 Meets the criteria under European Union Directive 2004 108 EC Reference
52. 09 0100 4697 Rev EA October 201 1 Transducer Block Sub Parameter Tables Table 3 11 XD ERROR Description An error has occurred that could not be classified as one of the errors listed below An error occurred during calibration of the device or a calibration error has been detected during operation of the device An error occurred during configuration of the device or a configuration error has been detected during operation of the device An electronic component has failed An failure has occurred Indicates that data stored within the system may no longer be valid due to non volatile memory checksum failure data verify after write failure etc The software has detected an error This could be caused by an improper interrupt service routine an arithmetic overflow a watchdog timer etc The algorithm used in the transducer block produced an error This could be due to an overflow data reasonableness Description Disables or enables a sensor for configuration Sensor description Serial number for the attached sensor Sensor Type and Connection MSB is the sensor type and LSB is the connection Sub Parameter Structure XD ERROR 0 No Error 17 General Error Calibration Error 18 Configuration Error 19 20 Electronics Failure 22 Failure Data Integrity Error 23 Software Error 24 Algorithm Error 25 Table 3 12 SENSOR CONFIG Sub Parameter
53. 2 Set CHANNEL to the appropriate channel value Refer to Alarm Priority Levels on page 3 11 for a listing of channel definitions 3 SetL TYPE to direct 4 Set XD_SCALE transducer measurement scaling to the appropriate upper and lower range values the appropriate sensor units and _ display decimal point Al 5 SetOUT SCALE output scaling to the appropriate upper and Function lower range values the appropriate sensor units and display decimal Block 8 LjOut D point 6 Setthe alarm limits and parameters if necessary 7 Place the Al function block in auto mode 8 Repeat steps 1 through 7 for each Al function block 9 Verify that the function blocks are scheduled 3 5 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Interfacing Analog Transmitters to FOUNDATION fieldbus 3 6 Transducer Block Configuration Use the sensor configuration method to set the sensor type to mV 2 wire for the applicable transducer block or follow these steps 1 Set the MODE BLK TARGET to OOS mode or set the SENSOR MODE to configuration Set the SENSOR to mV Set the MODE BLK TARGET to AUTO or set the SENSOR MODE to operation Multiple Analog Input or Analog Input Block Configuration Follow these steps to configure the applicable block 1 Set the MODE BLK TARGET to OOS mode or set the SENSOR MODE to configuration Set CHANNEL to the transducer block configured for the ana
54. 30 118 F 6 Symptom Possible Causes Corrective Action Mode will not leave OOS Target mode not set Set target mode to something other than OOS Configuration error BLOCK ERR will show the configuration error bit set SELECT TYPE must be set to a valid value and cannot be left at O Resource block The actual mode of the Resource block is OOS See Resource Block Diagnostics for corrective action Schedule Block is not scheduled and therefore cannot execute to go to Target Mode Typically BLOCK ERR will show Power Up for all blocks that are not scheduled Schedule the block to execute Status of output is BAD Inputs All inputs have Bad status OP selected OP SELECT is not set to 0 or it is linked to an input that is not 0 and it points to an input that is Bad Min good The number of Good inputs is less than MIN GOOD Block is in OOS mode Change mode to Auto Block alarms will not work Features FEATURES SEL in the resource block does not have Alerts enabled Enable the Alerts bit Notification LIM NOTIFY in the resource block is not high enough Set equal to MAX NOTIFY Cannot set LIMIT Scaling HI HI LIMIT LO LIMIT LO LO LIMIT Status Options STATUS OPTS has Propagate Fault Forward bit set This should be cleared to cause an alarm to occur Limit values are outside the OUT SCALE EUO and OUT SCALE EU 100 values Change OUT SCALE or set values within
55. 67 x fully 119 L 7 5 190 assembled fully 7 assembled Dimensions are in i nches millimeters Aluminum Plastic Junction Box Mounted on a Vertical Pipe Stainless Steel Junction Box Mounted on a Vertical Pipe 2 3 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 WIRING Figure 2 3 848T Transmitter Field Wiring Connections Figure 2 4 Sensor Wiring Diagram 2 4 If the sensor is installed in a high voltage environment and a fault condition or installation error occurs the sensor leads and transmitter terminals could carry lethal voltages Use extreme caution when making contact with the leads and terminals NOTE Do not apply high voltage e g AC line voltage to the transmitter terminals Abnormally high voltage can damage the unit bus terminals are rated to 42 4 VDC 6234 ft 1900 m max depending upon cable Integrated Power characteristics Conditioner and Filter Terminators RCM ANE HR Trunk vt N 5 5 a w FOUNDATION Signal fieldbus Host Wiring configuration tool ATE EEA Nos 1 through 16 Intrinsically safe installations may allow fewer devices per 1 5 barrier The 848T transmitter is compatible with 2 or 3 wire RTD thermocouple Ohm and millivolt sensor types Figure 2 4 shows the correct input connections to the sensor terminals on the tr
56. A NA 1 Change in ambient is in reference to the calibration temperature of the transmitter 20 68 F typical from the factory A 7 Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 Ambient Temperature Notes Examples When using a Pt 100 a 0 00385 sensor input at 30 ambient temperature e Digital Temperature Effects 0 003 C x 30 20 03 e Worst Case Error Digital Digital Temperature Effects 0 3 C 03 C 33 Total Probable Error DIMENSIONAL Junction Boxes with no entries option codes JP1 JA1 and JS1 external DRAWINGS dimensions are the same as those outlined for the other junction box materials in this section Rosemount 848T Top View 3 D View Side View 1 7 Security Switch Simulation Switch 43 6 7 amp 170 A 3 7 93 E F poseen psseea po Removable Wirin Connection Dimensions are in inches millimeters A 8 Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Aluminum Plastic Junction Box Cable Gland option codes JA2 and JP2 Top View 3 D View 10 24 260 Side View Front View 2 44 62 7 84 199 2 ar 1 73 44 6 30 160 2 28 58 78 96 1 10 28 Dimensions are in inches
57. DATION fieldbus is an all digital serial two way multidrop communication protocol that interconnects devices such as transmitters and valve controllers It is a local area network LAN for instruments that enable basic control and I O to be moved to the field devices The Model 848T uses FOUNDATION fieldbus technology developed and supported by Emerson Process Management and the other members of the independent Fieldbus FOUNDATION EMERSON WWW rosemount com Process Management Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table 4 1 Block Diagram for the Rosemount 848T Commissioning Addressing 4 2 E TAA ha Transducer Block FOUNDATION Resource Measurement Sensor Fieldbus Block sensor and differential Communications physical temp Stac device terminal temp information sensor configuration Analog to Digital calibration Signal diagnostics Conversion Cold Junction 8 sensors Input to Output Isolation To be able to setup configure and have it communicate with other devices on a segment a device must be assigned a permanent address Unless requested otherwise it is assigned a temporary address when shipped from the factory If there are two or more devices on a segment with the same address the first device to start up will use the assigned address ex Address 20 Each of
58. E parameters and RB DETAILED STATUS The simulate jumper must be ON and the SIMULATE STATE must be Jumper on simulation allowed before PWA SIMULATE can be active Table 3 8 BLOCK ERR Conditions 3 10 Block Errors Table 3 3 lists conditions reported in the BLOCK ERR parameter Number Name and Description 0 Other 1 Block Configuration Error A feature in CYCLE is set that is not supported by CYCLE TYPE 3 Simulate Active This indicates that the simulation jumper is in place This is not an indication that the I O blocks are using simulated data 7 Input failure process variable has bad status 9 Memory Failure A memory failure has occurred in FLASH RAM or EEPROM memory 10 Lost Static Data Static data that is stored in non volatile memory has been lost 11 Lost NV Data Non volatile data that is stored in non volatile memory has been lost 13 Device Needs Maintenance Now 14 Power Up The device was just powered up 15 OOS The actual mode is out of service Modes The resource block supports two modes of operation as defined by the MODE_BLK parameter Automatic Auto The block is processing its normal background memory checks Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Table 3 4 Alarm Priority Levels PlantWeb Alerts Out of Service OOS The block is not processing its tasks When the resource block is in O
59. E n SELECTED c OUT D OP SELECT Mode Logic Selection Logic MIN GOOD STATUS OPTS SELECT TYPE Block Errors Table D 7 lists conditions reported in the BLOCK ERR parameter Conditions in bold are inactive for the ISEL block and are given for reference Table D 7 BLOCK ERR Conditions Number Name and Description 0 Other The output has a quality of uncertain 1 Block Configuration Error Select type is not configured 2 Link Configuration Error 3 Simulate Active 4 Local Override 5 Device Fault State Set 6 Device Needs Maintenance Soon 7 Input Failure Process Variable has Bad Status One of the inputs is Bad 8 Output Failure 9 Memory Failure 10 Lost Static Data 11 Lost NV Data 12 Readback Check Failed 13 Device Needs Maintenance Now 14 Power Up The device was just powered up 15 Out of Service The actual mode is out of service Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table D 8 Alarm Priority Levels D 18 Modes The ISEL function block supports three modes of operation as defined by the MODE BLK parameter Manual Man The block output OUT may be set manually Automatic Auto OUT reflects the selected value Out of Service OOS The block is not processed The BLOCK ERR parameter shows Out of Service The target mode of a block may be restricted to one or more of the supported mo
60. ED ALARM MAINT ALARM and ADVISE ALARM which will contain information regarding some of the device errors which are detected by the transmitter software There will be a RECOMMENDED ACTION parameter which will be used to display the recommended action text for the highest priority alarm and a HEALTH INDEX parameters 0 100 indicating the overall health of the transmitter FAILED ALARM will have the highest priority followed by MAINT ALARM and ADVISE ALARM will be the lowest priority FAILED ALARMS A failure alarm indicates a failure within a device that will make the device or some part of the device non operational This implies that the device is in need of repair and must be fixed immediately There are five parameters associated with FAILED ALARMS specifically they are described below FAILED ENABLED This parameter contains a list of failures in the device which makes the device non operational that will cause an alert to be sent Below is a list of the failures with the highest priority first 3 11 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table 3 5 Failure Alarms 3 12 Alarm Priority Electronics Failure 1 Memory Failure Hardware Software Incompatible Body Temperature Failure Sensor 8 Failure Sensor 7 Failure Sensor 6 Failure Sensor 5 Failure Sensor 4 Failure Sensor 3 Failure Sensor 2 Failure Sensor 1 Failure N
61. Emerson Process Management National Response Center toll free at 800 654 7768 This center available 24 hours a day will assist with any needed information or materials NThe center will ask for the following information Product model Serial numbers The last process material to which the product was exposed The center will provide A Return Material Authorization RMA number Instructions and procedures that are necessary to return goods that were exposed to hazardous substances For other locations please contact an Emerson Process Management sales representative NOTE If a hazardous substance is identified a Material Safety Data Sheet MSDS required by law to be available to people exposed to specific hazardous substances must be included with the returned materials Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Reference Manual 00809 0100 4697 Rev EA October 201 1 Rosemount 848T Section 2 SAFETY MESSAGES Warnings MOUNTING ROSEMOUNT Installation Safety Messages page 2 1 MOUNTING y RETE TTA page 2 1 Wiring 2 eee ces IRR 2 4 Grounding ie fs eee et page 2 8 SWEDES ak 2 10 Tagglhg 2 11 Installation 2 12 Instructions and procedure
62. HI AVN SINJNOdHOO 40 NOTLALILSGNS 9 IN3dInO3 ONITIVISNI NIHA 03801104 38 LSNW ONIMVYG NOIIVTWVISNI S UFYNLOVINNVA SnIvuVddv C31VI2085V A13A11234 38 01 NO 92 30 V101 V 0330 3 LON Q3NISNOO STVNIWH3I HOSN3S 11 OL 031 ddV 3ONVIODON ANY 3ONVIIOVdVO 1101 0 0927 0127 2 06 261 1511011 1 939 31 LN3IGNV OL VdiN ISNV 3002 1V21412111 IVNOIIVN JHL ONY SNOIIV2O1 4314155 12 SMOGUVZVH SN31SAS FAVS ATIVOISNIUINI 9N121A83S 3804380 YIMOd 30 NOILVTIVISNI 92149 5 1 15 HLIM 32NYQJOOOV NI 38 Q100HS NOIIVTIVISNI LOANNODSIG S3N3HdSOMIV 371811519009 YO 318VWWV 13 dO NOILINOI IN3A3Hd Ol ONINUVM NO SUJA OGZ SWNINHIL YOSNIS OL 0312380 38 AYN S 018 ONY NVHL 38OH 31V83N39 YO ISN LON ISNW u318HVO OL Q3103NNOO LN3WdIn03 1081302 17 SATANOIONYIHL SY HONS SnlVuvddV JINIS SV 0313155 12 1N3HdIfO3 AINO TWAOUddY VSD 80184 LNOHLIM ONINVNO OL NOISIAJY ON I 50177 87800 SILON vauv 2 NoISIAId 55 19 HOS 33VS ATIVOISNIHLINI SNOGUVZVH NON 2 Snivuvddv GaLvioossy Q3AO0HddV VSO 331420 2 snadiad 4 331430 snada Q3AO0HddV YSI 18 8 TATON
63. HS NOIIVIIVISNI L SNOI1V201 NOISIAIG 55719 804 ONINIM SIYINOIY Snlvuvddv GALVIDOSSY 0313123951 HLIM NOIIVTIVISNI Z NOISIAIQ I SSYI9 3H0S019N3 3504819 1VH3N39 V NI Q3T11VISNI N3HM NOI1V2O1 ShOQuVZVH NOISIAIQ I 58919 3H NI NOII1VH3dO 593102 1878 1300W FHL 30 TVAOUddY 9NIHSSNIONS NoIS3Q zunivusdWal 21H NOISIAIQ ALI TIGVIIQS JIVdNI AVW SLNANOdWOD 30 NOTIALILSENS ONINUVM 30 VAOMddV JHL 1nOHLIM _ GS3LLINYAd SNOLLVOISIQON ON 3 09 5915 2 06 JEL QAQ 1 09 Lonaoud SIINIT 38f1VH3dN3I IN3IGNV G3l3iLH39 VSI 9N121A83S 3800438 YIMOd 123902510 SIYFHASOWLY 3191151900 YO 318VWHV13 30 NOILIN9I 1N3A3Hd Ol ONINUVM STVNIWYIL UOSNJS OL Q3123NNOO 38 AYN 5 019 ONY S31dn020NU1Hl Sv HONS MW GZ 001 AGI NVHl 3HOW ONIIVH3N3O LON S lVuVddV SV 0313195 12 1N3AdIQ0O3 AINO 7 507 8800 TWAOUddY VSD 80184 LNOHLIM 9NIMVHO OL NOISIA3H ON 1 0313155 2 8 V 1 SSV19 HOS 378 5 SnoQuvzvH Sn1vuvddv qa1vioossv Gaiaio3dsun f 391430 NOI140 200 2 snadiad 4 331430 snada Q3AO0HddV 52 pyu
64. IE FM FISCO Intrinsically Safe No IF CSA FISCO Intrinsically Safe Division 2 No IG IECEx FISCO Intrinsic Safety No N1 ATEX Type n enclosure required Yes N5 FM Class Division 2 and Dust Ignition proof enclosure required Yes N6 CSA Class Division 2 No N7 IECEx Type n enclosure required Yes NC ATEX Type n Component Ex nA nL No ND ATEX Dust enclosure required Yes NJ IECEx Type n Component Ex nA nL No FM Class 1 Division 2 No NA No Approval No Expanded E6 CSA Explosion proof Dust Ignition proof Division 2 JX3 enclosure required Yes Options Include with selected model number Input Types Standard Standard S001 RTD Thermocouple mV Ohm Inputs 50020 RTDs Thermocouple mV Ohm and 4 20 mA Inputs PlantWeb Advanced Diagnostics Standard Standard D04 Measurement Validation Diagnostic Transient Protection Standard Standard T1 Integral Transient Protector Mounting Bracket B6 Mounting Bracket for 2 in pipe mounting SST bracket and bolts A 12 Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Table A 1 Rosemount 848T FOUNDATION fieldbus Ordering Information The Standard offering represents the most common options The starred options X should be selected for best delivery The Expanded offering is subject to additional delivery lead time Enclosure Options
65. MOT1104 3 1 N3HM Q3MOTIV SI NOIIO3NNOOU31NI 1079 87800 0310N 411V214123dS SY Ld30X3 SniVuvdav 1 3OVd 335 NOILYTIYLSNI 34VS ATIVOISNIYINT QuVQNVIS 30 138915 Y Si 02513 2 SILON v3uv Galaissv Toon 2 8 V sdnoJo 5579 0255 SnoduvzvH 09519 905 Jlavlis snivuvddv qaivi ossv 331430 09514 NAYLINS 09514 F1aV_LINS 2 331430 5807315 Wd NOILVNINYSL daAosddv Yy 188 SPON 11 H 91 19 4n u 05 ONIBSSNION3 1530 5 3univHadW3l 219 nus d 30 WAOHddV 1 in 8 01 G3LLIWH3d SNOLLVOLHIGON ON u313AVHVd 0254 G ZI on L9naoud TVNIAH31 d007 u3MOd SLINM Y3LINYYYd 1 41 0 9151599 W4 WNIWH3I HOSN3S B 14 Hosemount 848T 30 E 13 200 1 E VINIVA Qv 37925 JON 00 1Tnva3d NOS ZF AT 707897000 12 52 01 010 F 2 Ad I 19 00 10103130 1 uF Y S I ONIMYYO NOILVTIVISNI WO 19
66. NSTALLATIONS I5 I6 I1 Approved 1 5 or lt 225 17 IE FISCO barrier 12272 ul 848T without enclosure Non approved N1 N7 power supply m EG 848T with enclosure N5 Non approved power supply SX 848T with enclosure Approved I5 16 IE non incendive power supply 2 848T without enclosure DUST INSTALLATIONS c m N5 ND 3 Non approved power supply ICE 848T with enclosure Standard cable Division 2 wiring Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 INSTALLATION The installation guidelines presented by the drawings must be followed in DRAWINGS order to maintain certified ratings for installed transmitters B 12 Rosemount Drawing 00848 4404 3 Sheets Factory Mutual Intrinsic Safety FISCO Installation Drawing Rosemount Drawing 00848 4405 2 Sheets Canadian Standards Association Intrinsic Safety FISCO Installation Drawing Hosemount 848T 00809 0100 4697 Rev EA Reference Manual October 201 1 E 30 13345 3441 206 3003 13ng0ud rscee OANIVINIVA 092 3138 LON 0 7077 87800 lTnvu3d Noted aa 2 2 SM Y 250 1 00814 3ALONGON RON 71 ONIAYHO NOLLYTIYISNI ssim eub Gee UR GAT 9130 11 21 21902 5321A30 11 WAS 1 s oLNNOWISOU ee dh WOH SIH SNOISNGHI Q 240 12 2d 19022 S321A30 b mist i bg
67. OS all blocks within the resource device are forced into OOS The BLOCK ERR parameter shows Out of Service In this mode changes can be made to all configurable parameters The target mode of a block may be restricted to one or more of the supported modes Alarm Detection A block alarm will be generated whenever the BLOCK ERR has an error bit set The types of block error for the resource block are defined above A write alarm is generated whenever the WRITE LOCK parameter is cleared The priority of the write alarm is set in the following parameter WRITE PRI Number Description 0 The priority of an alarm condition changes to 0 after the condition that caused the alarm is corrected 1 An alarm condition with a priority of 1 is recognized by the system but is not reported to the operator 2 An alarm condition with a priority of 2 is reported to the operator but does not require operator attention such as diagnostics and system alerts 3 7 Alarm conditions of priority 3 to 7 are advisory alarms of increasing priority 8 15 Alarm conditions of priority 8 to 15 are critical alarms of increasing priority Status Handling There are no status parameters associated with the resource block The alerts and recommended actions should be used in conjunction with Operation and Maintenance on page 4 1 The Resource Block will act as a coordinator for PlantWeb alerts There will be three alarm parameters FAIL
68. OW CUT 96 If percentage value of transducer input fails below this PV 0 18 PV FTIME Seconds The time constant of the first order PV filter It is the time required for a 63 change in the PV or OUT value 19 FIELD VAL Percent The value and status from the transducer block or from the simulated input when simulation is enabled 20 UPDATE EVT None This alert is generated by any change to the static data 21 BLOCK ALM None The block alarm is used for all configuration hardware connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active will set the Active status in the Status parameter As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed 22 ALARM SUM None The summary alarm is used for all process alarms in the block The cause of the alert is entered in the subcode field The first alert to become active will set the Active status in the Status parameter As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed 23 ACK OPTION None Used to set auto acknowledgment of alarms 24 ALARM HYS Percent The amount the alarm value must return within the alarm limit before the associated active alarm condition clears 25 HI HI PRI None The priorit
69. RDWARE REV AND RESOURCE RB SFTWR REV ALL Failed Memory Error Restart the device If the problem persists replace the device Failed Electronics Failure Restart the device If the problem persists replace the device NOTE If status is set up to flag failure warning you will see associated sensor degraded or failure alert The transducer block allows the user to view and manage the channel information There is one Transducer Block for the eight sensors that contains specific temperature measurement data including Sensor Type Engineering Units Damping Temperature Com Diagnostics pensation 3 15 Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 Transducer Block Channel Definitions The 848T supports multiple sensor inputs Each input has a channel assigned to it allowing an Al or MAI Function Blocks to be linked to that input The channels for the 848T are as follows Table 3 8 Channel Definitions for the 848T Channel Description Channel Description 1 Sensor One 16 Sensor 3 Deviation 2 Sensor Two 17 Sensor 4 Deviation 3 Sensor Three 18 Sensor 5 Deviation 4 Sensor Four 19 Sensor 6 Deviation 5 Sensor Five 20 Sensor 7 Deviation 6 Sensor Six 21 Sensor 8 Deviation 7 Sensor Seven 22 Sensor 1 Rate Change 8 Sensor Eight 23 Sensor 2 Rate Change 9 Differential Sensor 1 24 Sensor
70. Reference Manual 00809 0100 4697 Rev EA October 201 1 Rosemount 848T High Density Temperature Transmitter with FOUNDATION fieldbus Device Revision 7 ROSEMOUNT EMERSON www rosemount com Process Management Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Rosemount 848T High Density Temperature Transmitter with FOUNDATION fieldbus NOTICE Read this manual before working with the product For personal and system safety and for optimum product performance make sure to thoroughly understand the contents before installing using or maintaining this product The United States has two toll free assistance numbers and one international number Customer Central 1 800 999 9307 7 00 a m to 7 00 p m CST National Response Center 1 800 654 7768 24 hours a day Equipment service needs International 1 952 906 8888 ZNCAUTION The products described in this document are NOT designed for nuclear qualified applications Using non nuclear qualified products in applications that require nuclear qualified hardware or products may cause inaccurate readings For information on Rosemount nuclear qualified products contact an Emerson Process Management Sales Representative ROSEMOUNT ca eon www rosemount com Process Management Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Table of Contents SECTION 1 Safety Messages ss o
71. SOR_NUMBER The sensor number to calibrate CALIB_POINT_HI The High calibration point for the selected sensor CALIB_POINT_LO The Low calibration point for the selected sensor CALIB_UNIT The engineering units used for calibrating the sensor CALIB_METHOD The method of the last calibration for sensor 103 factory trim standard calibration 104 user trim standard calibration CALIB_INFO Information regarding the calibration CALIB_DATE Date that the calibration was completed CALIB_MIN_SPAN The minimum calibration span value allowed This minimum span information is necessary to ensure that when calibration is done the two calibrated points are not too close together CALIB_PT_HI_LIMIT The High calibration unit CALIB_PT_LO_LIMIT The Low calibration unit Cal Status No Command Active Command Executing Command Done Command Done Errors Transducer Status Table 0x01 A D Failure 0x02 Sensor Failure 0x04 Dual Sensor Failure 0x08 CJC Degraded 0x10 CJC Failure 0x20 Body Temp Failure 0x40 Degraded 0x80 Body Temperature Degraded 3 21 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table 3 17 DUAL SENSOR CONFIG Sub Parameter Structure Table 3 18 DUAL SENSOR DUAL SENSOR CONFIG STRUCTURE Parameter Descr
72. Some will use Device Descriptions DDs and DD Methods to make configuration and displaying of data consistent across host platforms Unless otherwise specified the 848T will be shipped with the following configuration default Sensor Type Type J Thermocouple Damping 5 seconds Measurement Units Output Linear with Temperature Line Voltage Filter 60 Hz Temperature Specific Blocks Transducer Block 1 FOUNDATION fieldbus Function Blocks Analog Input 8 Multiple Analog Input 2 Input Selector 4 1 For all eight sensors Refer to that systems documentation to perform configuration changes using FOUNDATION fieldbus host or configuration tool NOTE To make configuration changes ensure that the block is Out of Service OOS by setting the MODE BLK TARGET to OOS or set the SENSOR MODE to Configuration The transmitter is available with the standard configuration setting The configuration settings and block configuration may be changed in the field with the Emerson Process Management Systems DeltaV with AMSinside or other FOUNDATION fieldbus host or configuration tool Custom configurations are to be specified when ordering For FOUNDATION fieldbus hosts or configuration tools that support device description DD methods there are two configuration methods available in the Transducer block These methods are included with the DD software Sensor Conf
73. T H108 04 Q131HS OL 3NI1 2 2 14 3NI T 01 3NI 1 2 2 AN J 031412385 351 SSIINN UIS y ju 002 01 09 9 3oNVLIOVaY2 He a LA Mur 0170 39NVLORQN I T wy s4ywo OGI 01 GI Y 3ONVISIS3N 4001 1d YO 15311939099 318Y2 YO HL sI 1 YO uq 301148 YO HA OA 11 YO_xoWA Q 5 310v uNds 119110 CITAJO 01312 0001 gt 318v YNNYL snivavadv 0311 2055 501 S 1 Me 31V1021V2 38 LON 013N 3182 8013414 3Hl 40 921151931999 2 5 ONY 7 3Hl 8 03119 30 NvO ui3MOd JYOW FONTS Sn8013 4 JHL NO QiMOl V 34 5321430 JYOW Y SIHL JO 5 SHL NIHLIM ONITIVLISNI OL SIIJ3N38 IHL LVHM 1545 FHL Ol 49u3N3 3Q1AOUd 01 Q3MOTIV LON IAISSWd 38 ISAW Snivuvddv 031 12095 IHL NVHL Snlvuvddv HOV3 G 1 309385 FHL QN ONV SIILSIYFLOVYVHD 1Y91419313 FHL 40 NOIIRGIHISIQ GATIOULNOD V SMOlIV SIHL NOIIVUAOIJNOO NOIIVTIVISNI NOdN Q338H9V SnivuvddV NY OINI Q31V4931NI 38 SOIVNIWU3I SIHL f NOLLWNIWY3L JHL Jh 2 2 Ol 0 SWUO 001 Ol 06 Y 3181X4713 A11N3 21340S 134 UV INOILYVd V SI 1d32NOD 335 0801314 JH1 OL 03123002 731 3002 NOILdO 1300N HLIM QIIVA AINO SI NOILVTIVISNI 02513 FHL 2c WolvNINU3I JHL NVHI 43H10 Sf ilvuvddV H2V3 903 H 01 5 1QNV 4V G 512 3041 SI 9NI
74. Uncertain if Limited Sets the OUT status quality to Uncertain when the value is higher or lower than the sensor limits Uncertain if in Manual mode The status of the Output is set to Uncertain when the mode is set to Manual NOTES 1 The instrument must be in OOS mode to set the status option 2 The block only supports the BAD if Limited option uncertain if limited and uncertain if manual Advanced Features The AI function block provided with Rosemount fieldbus devices provides added capability through the addition of the following parameters ALARM TYPE Allows one or more of the process alarm conditions detected by the AI function block to be used in setting its OUT D parameter OUT D Discrete output of the function block based on the detection of process alarm condition s This parameter may be linked to other function blocks that require a discrete input based on the detected alarm condition STD DEV and CAP STDDEV Diagnostic parameters that can be used to determine the variability of the process D 7 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Block Troubleshooting Symptom Application Information The configuration of the function block and its associated output channels depends on the specific application A typical configuration for the block involves the following parameters Possible Causes CHANNEL The device supports more than one
75. VISIS3U 4001 5311939099 3182 XDWA wis 221145 114110 lfidNI 421 4 0 01314 w 0f gt 310v 4 Sfilvuvddv 0317120857 Snivuvddv S I 0001 gt j18V2 MNAYL H19N31 23091 SI 9NIMOTIOJ N3HM Q3MOT V SI NOIIO3NNOOU3INI 972 NOLLVHnOIJNOO ONIMIM Q31V1021V9 38 LON QJIN 318 2 s09011 j JHL 40 SOI1SIU1 OVUVHO 2 QNV Y FHL G Qirdddv 30 NYO YIMOd 3uOW FONTS 5 801313 JHL NO Q3MOlIV JUV S321A30 JON Y 3AISSVd 38 11 snivuvdaV Q3lVIDOSSV GUL NVHL N3HIO shlVuYVddV HOYI G Z ENOLLVYNDISNOD SIHL 30 SONNOS NIHLIM ONITIVISNI OL SIIJ3N38 IHL 1VHM 1N3NO3S IHL ONNOYY S211S18312Y8YHO 1V21812313 IHL 30 1181 51510 AMA tae 0311081002 V 303 SMOTIV SIHI NOIIVSDD13NOO NOIIV1TVISNI 4 03339 3181X314 AT1N3IO 14405 134 YVINDILYYE Y SI 193900 JAYS ATIVOISNIINI S08Q11I 4 1801314 Ol 03193NNO2 40254 SI SILER WAN Ord HS Ge os E 4l 3002 01140 1300W HLIM GITWA AINO SI NOLIVTIVISNI 02513 YSI FHL 272 Snivuvddv CN31SAS JHL OI A983N3 3QIAOYd OL GIMOTIY LON 183 GILON 411V213123d4 SV 1430X3 1 39Vd 335 NOIIVTIVISNI 33 5 ATIVOISNININI GYVONVIS 30 135915 SI 02513 YS 5 a SSV1D Y04 0554 SILON SnoQquvZvH NON SnoquvZvH 02514 405 STAVLINS snivuvddv Q3ivioossv G3 oUdav VSO 3314301
76. a eet ehe aa d edes bac ute ER 1 1 Introduction Warnings nga wales RE 1 1 COVEIVIOW 1 2 TRANSMIS a NERO ae REOR 1 2 Manuals EL EE REA UE 1 2 Service Support sa ged Powe 1 8 SECTION 2 Safety lt 2 1 Installation Warnings ppp t dex Hid 2 1 ae erue eR Xo te pink eed qaia 2 1 Mounting to a DIN Rail Without an Enclosure 2 2 Mounting to a Panel with a Junction 2 2 Mounting to a 2 in Pipe 2 3 Cete 2 4 GCOofninectlons oui ei cesi dangle REP P eI RI ERR IE 2 4 Power SUpply sedan sc er Eu xe rem 2 7 Surges Trarnsients i ds hz efe PEE NE 2 7 GroundiNge ers cp 2 8 SWITCHES ecce nd b e Dt tese ts 2 10 Tagging six ERR Eae dE PUE ieee CERES 2 11 Installation hti MESE RII EE Rer 2 12 Using Cable 2 12 Using Conduit 2 12 SECTION 3 Safety lt 3 1 Configuration NOBIS vain cdd Bee ean odd UU Ee ISTE Ram Ou 3 1
77. active alarm condition clears 37 HI HI PRI None The priority of the HI HI alarm 38 HI HI LIM Percent The setting for the alarm limit used to detect the HI HI alarm condition 39 HI PRI None The priority of the HI alarm 40 HI LIM EU of IN The setting for the alarm limit used to detect the HI alarm condition 41 LO PRI None The priority of the LO alarm 42 LO LIM EU of IN The setting of the alarm limit used to detect the LO alarm condition 43 LO LO PRI None The priority of the LO LO alarm 44 LO LO LIM EU of IN The setting for the alarm limit sued to detect the LO LO alarm condition 45 HI HI ALM None The HI HI alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm 46 HI None The HI alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm 47 LO ALM None The LO alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm 48 LO LO ALM None The LO LO alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm 49 OUT D None Discrete output to indicate a selected alarm value 50 ALM SEL None Used to select the process alarm conditions that will cause the OUT D parameter to be set D 16 Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Functionality Figure D 5 Input Selector Function Block Schematic IN n OUT DISABL
78. and independent temperature points with one transmitter Multiple temperature sensor types may be connected to each 848T transmitter In addition the 848T can accept 4 20 inputs The enhanced measurement capability of the 848T allows it to communicate these variables to any FOUNDATION fieldbus host or configuration tool This manual is designed to assist in the installation operation and maintenance of the Rosemount 848T Temperature Transmitter Section 1 Introduction Overview Considerations Return of Materials Section 2 Installation Mounting Installation Wiring Power Supply Commissioning Section 3 Configuration e FOUNDATION fieldbus Technology e Configuration Function Block Configuration Section 4 Operation and Maintenance Hardware Maintenance Troubleshooting Appendix A Specification and Reference Data Specifications Dimensional Drawings Ordering Information Appendix B Product Certificates Hazardous Locations Certificates e Intrinsically Safe and Non Incendive Installations Installation Drawings Appendix C Foundation Fieldbus Technology Device Descriptions Block Operation Appendix D Function Blocks Analog Input Al Function Block Multiple Analog Input MAI Function Block Input Selector Function Block Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T SERVICE SUPPORT To expedite the return process in North America call the
79. andard GE M12 4 pin Male Connector eurofast GM size Mini 4 pin Male Connector minifast Typical Model Number 8487 15 5001 T1 B6 JA2 1 Consult factory for availability 2 Available only with 5001 option 3 The Rosemount 848T ordered with component approval is not approved as a stand alone unit Additional system certification is required 4 Enclosure Option JX3 must be ordered with Product Certification Code E6 O ring for the JX3 enclosure rated to 20 C 5 5002 is only available with Product Certification 5 N1 NC NK and NA Explosion proof enclosure rated 4 F 20 C 7 Available with no approval or Intrinsically Safe approvals only For FM Intrinsically Safe option code 15 install in accordance with Rosemount drawing 00848 4402 A 13 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 A 14 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Appendix B HAZARDOUS LOCATIONS CERTIFICATES North American Approvals ROSEMOUNT Product Certificates Hazardous Locations Certificates page B 1 Intrinsically Safe and Non Incendive Installations page B 11 Installation Drawings page B 12 Factory Mutual FM Approvals 15 Intrinsically Safe and Non Incendive Intrinsically Safe for use in Class Division 1 Groups B C D
80. ansmitter The 848T can also accept inputs from analog devices using the optional analog input connector Figure 2 5 shows the correct input connections to the analog input connector when installed on the transmitter Tighten the terminal screws to ensure proper connection f AL AI N 123 2 wire Soils 2 Wire RTD RTD and RTD and Ohms and with Ohms Ohms Millivolts Compensation Loop Emerson Process Management provides 4 wire sensors for all single element RTDs Use these RTDs in 3 wire configurations by clipping the fourth lead or leaving it disconnected and insulated with electrical tape The transmitter must be configured for a 3 wire RTD in order to recognize an RTD with a compensation loop Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T RTD or Ohm Inputs Various RTD configurations including 2 wire and 3 wire are used in industrial applications If the transmitter is mounted remotely from a 3 wire RTD it will operate within specifications without recalibration for lead wire resistances of up to 60 ohms per lead equivalent to 6 000 feet of 20 AWG wire If using a 2 wire RTD both RTD leads are in series with the sensor element so errors can occur if the lead lengths exceed one foot of 20 AWG wire Compensation for this error is provided when using 3 wire RTDs Thermocouple or Millivolt Inputs Use appropriate thermocouple extension wire to connect the thermocouple to t
81. are given for reference Number Name and Description 0 Other 1 Block Configuration Error the selected channel carries a measurement that is incompatible with the engineering units selected in SCALE the TYPE parameter is not configured or WRITE CHECK zero 2 Link Configuration Error 3 Simulate Active Simulation is enabled and the block is using a simulated value in its execution 4 Local Override 5 Device Fault State Set 6 Device Needs Maintenance Soon 7 Input Failure Process Variable has Bad Status The hardware is bad or a bad status is being simulated 8 Output Failure The output is bad based primarily upon a bad input 9 Memory Failure 10 Lost Static Data 11 Lost NV Data 12 Readback Check Failed 13 Device Needs Maintenance Now 14 Power Up 15 Out of Service The actual mode is out of service Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Modes The MAI Function Block supports three modes of operation as defined by the MODE BLK parameter Manual Man The block output OUT may be set manually Automatic Auto OUT 1 to OUT 8 reflects the analog input measurement or the simulated value when simulation is enabled Out of Service OOS The block is not processed PV is not updated and the OUT status is set to Bad Out of Service The BLOCK ERR parameter shows Out of Service In this mode changes can be made to
82. ated with a block Multiple errors may be shown For a list of enumeration values see FF 890 Block Err formal model 7 UPDATE EVENT This alert is generated by any change to the static data 8 BLOCK ALM The BLOCK ALM is used for all configuration hardware connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active will set the Active status in the Status attribute As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed 9 TRANSDUCER DIRECTORY A directory that specified the number and stating indices of the transducers in the transducer block 10 TRANSDUCER TYPE Identifies the transducer that follows 101 Standard Temperature with Calibration 11 XD ERROR Provides additional error codes related to transducer blocks For a list of enumeration values see FF 902 Please see tables below for a list of sub parameters that pertain to XD ERROR messages 3 17 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table 3 10 Transducer Block Parameters Number Parameter Description 12 COLLECTION DIRECTORY A directory that specifies the number starting indices and DD Item ID s of the data collections i
83. ation Parameters Please see tables below for a list of sub parameters that pertain to Sensor Configuration functions 26 PRIMARY VALUE 7 The measured value and status available to the function block 27 SENSOR 8 CONFIG Sensor Configuration Parameters Please see tables below for a list of sub parameters that pertain to Sensor Configuration functions 28 PRIMARY VALUE 8 The measured value and status available to the function block 29 SENSOR STATUS Status of each individual sensor Please see tables below for a list of possible status messages 30 SENSOR CAL Parameter structure to allow for calibration of each sensor Please see tables below for a list of sub parameters that pertain to Sensor Calibration functions 31 CAL STATUS Status of the calibration that was previously performed Please see tables below for a list of possible Calibration Statuses 32 ASIC REJECTION A configurable power line noise rejection setting 33 BODY TEMP Body Temperature of the device 34 BODY TEMP RANGE The range of the body temperature including the units index 35 TB SUMMARY STATUS Overall summary status of the sensor transducer Please see tables below for a list of possible transducer statuses 36 DUAL SENSOR 1 CONFIG Parameter structure to allow for calibration of each differential measurement Please see tables below for a list of sub parameters that pertain to Dual Sensor Calibration functions 37 DUAL SENSOR VALUE 1 The measured value and status available to
84. ciated with the hardware or software components associated with a block Multiple errors may be shown For a list of enumeration values see FF 890 Block Err formal model 07 RS STATE State of the function block application state machine For a list of enumeration values see FF 890 08 TEST RW Read write test parameter used only for conformance testing 09 DD RESOURCE String identifying the tag of the resource which contains the Device Description for the resource 10 MANUFAC 1 Manufacturer identification number used by an interface device to locate the DD file for the resource 11 DEV TYPE Manufacturer s model number associated with the resource used by interface devices to locate the DD file for the resource 12 DEV REV Manufacturer revision number associated with the resource used by an interface device to locate the DD file for the resource 13 DD REV Revision of the DD associated with the resource used by the interface device to locate the DD file for the resource 14 GRANT DENY Options for controlling access of host computer and local control panels to operating tuning and alarm parameters of the block 15 HARD TYPES The types of hardware available as channel numbers The supported hardware type is SCALAR INPUT 16 RESTART Allows a manual restart to be initiated 17 FEATURES Used to show supported resource block options The supported features are Unicode Reports Soft Write Lock Hard Write Lock and Multi Bit Alarms
85. configured improperly the FOUNDATION fieldbus host or configuration tool could overwrite the default transmitter configuration Typical Profiling Application Example Distillation column temperature profile where all channels have the same sensor units C F etc 1 Place the Multiple Analog Input MAI function block in OOS mode set MODE BLK TARGET to OOS 2 Set CHANNEL channels 1 to 8 Although the CHANNEL X parameters remain writable CHANNEL X can only be set X when CHANNEL 1 3 SetL TYPE to direct or indirect 4 SetXD SCALE transducer measurement scaling to the appropriate upper and lower range values the appropriate sensor units and display decimal point 5 SetOUT SCALE MAI output scaling to the appropriate upper and lower range values the appropriate sensor units and display decimal point 6 Place the MAI Function Block in auto mode 7 Merify that the function blocks are scheduled Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Monitoring Application with a Single Selection Example Average exhaust temperature of gas and turbine where there is a single alarm level for all inputs 1 the MAI outputs to the ISEL inputs 2 Place the Multiple Analog Input MAI function block in OOS mode set MODE_BLK TARGET to OOS
86. ction blocks called universal parameters The FOUNDATION has also defined a standard set of function block classes such as input output control and calculation blocks Each of these classes has a small set of parameters established for it They have also published definitions for transducer blocks commonly used with standard function blocks Examples include temperature pressure level and flow transducer blocks The FOUNDATION specifications and definitions allow vendors to add their own parameters by importing and subclassing specified classes This approach permits extending function block definitions as new requirements are discovered and as technology advances Figure C 1 illustrates the internal structure of a function block When execution begins input parameter values from other blocks are snapped in by the block The input snap process ensures that these values do not change during the block execution New values received for these parameters do not affect the snapped values and will not be used by the function block during the current execution Input Events Execution gt Output Events Control gt Input Processing Output Parameter Algorithm Parameter Linkages Linkages gt Once the inputs are snapped the algorithm operates on them generating outputs as it progresses Algorithm executions are controlled through the setting of contained parameters Contained parameters are internal to function
87. d 71 FAILED MASK Mask of FAILED ALM Corresponds bit for bit to FAILED ACTIVE A bit on means that the condition is masked out from alarming 72 FAILED ACTIVE Enumerated list of failure conditions within a device 738 FAILED ALM Alarm indicating a failure within a device which makes the device non operational 74 MAINT PRI Designates the alarming priority of the MAINT ALM 75 MAINT ENABLE Enabled MAINT ALM alarm conditions Corresponds bit for bit to the MAINT ACTIVE A bit on means that the corresponding alarm condition is enabled and will be detected A bit off means the corresponding alarm condition is disabled and will not be detected 76 MAINT MASK Mask of MAINT_ALM Corresponds bit for bit to MAINT ACTIVE A bit on means that the condition is masked out from alarming 77 Enumerated list of maintenance conditions within device 78 MAINT ALM Alarm indicating the device needs maintenance soon If the condition is ignored the device will eventually fail 79 ADVISE PRI Designates the alarming priority of the ADVISE ALM 80 ADVISE ENABLE Enabled ADVISE ALM alarm conditions Corresponds bit for bit to the ADVISE ACTIVE A bit on means that the corresponding alarm condition is enabled and will be detected A bit off means the corresponding alarm condition is disabled and will not be detected 81 ADVISE MASK Mask of ADVISE ALM Corresponds bit for bit to ADVISE ACTIVE
88. d and the function blocks are linked a master link wide schedule is created for the LAS Each device maintains its portion of the link wide schedule known as the Function Block Schedule The Function Block Schedule indicates when the function blocks for the device are to be executed The scheduled execution time for each function block is represented as an offset from the beginning of the macrocycle start time Figure C 6 Example Link Schedule Showing Scheduled and Unscheduled Macrocycle Start Time Sequence Communication Offset from macrocycle Repeats d start time 0 for AI Z Execution Offset from Start i Pi time 20 for Al Communication Device 1 Scheduled Communication 1 Offset from macrocycle start j jtime 30 for PID Execution Offset from macrocycle start time 50 for AO Execution Macrocycle To support synchronization of schedules periodically Link Scheduling LS time is distributed The beginning of the macrocycle represents a common starting time for all Function Block schedules on a link and for the LAS link wide schedule This permits function block executions and their corresponding data transfers to be synchronized in time C 8 Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Appendix D Function Blocks Analog Input Al Function Block page D
89. d to the Backup LAS device Ensure that all of the devices that are intended to be a Backup LAS are marked to receive the LAS schedule devices go off live list and then return Live list must be reconstructed by Backup LAS device Current link setting and configured links settings are different Set the current link setting equal to the configured settings Resource Block Symptom Possible Causes Corrective Action Mode will not leave OOS Target mode not set Memory Failure Set target mode to something other than OOS BLOCK ERR will show the lost NV Data or Lost Static Data bit set Restart the device by setting RESTART to Processor If the block error does not clear call the factory Block Alarms Will not work Features FEATURES SEL does not have Alerts enabled Enable the report bit Notification NOTIFY is not high enough Set equal to MAX NOTIFY Transducer Block Troubleshooting Symptom Possible Causes Corrective Action Mode will not leave OOS Target mode not set Set target mode to something other than OOS A D board check sum error The A D board has a checksum error Resource block The actual mode of the Resource block is in OOS See Resource Block Diagnostics for corrective action Transducer Block The actual mode of the Transducer Block is OOS The primary value is BAD Measurement Look at t
90. decimal number 0 255 Minor rev 1 3 characters decimal number 0 255 Build rev 1 5 characters decimal number 0 255 Time of build 8 characters xx xx xx military time Day of week of build 3 characters Sun Mon Month of build 3 characters Jan Feb Day of month of build 1 2 characters decimal number 1 31 Year of build 4 characters decimal Builder 7 characters login name of builder 52 HARDWARE REV Hardware revision of that hardware that has the resource block in it 58 OUTPUT BOARD SN Output board serial number 54 FINAL ASSY NUM The same final assembly number placed on the label 55 DETAILED STATUS Indicates the state of the transmitter NOTE Will be writable when SIMULATE is On during simulation mode 56 SUMMARY STATUS An enumerated value of repair analysis 57 MESSAGE DATE Date associated with the MESSAGE TEXT parameter 58 MESSAGE TEXT Used to indicate changes made by the user to the device s installation configuration or calibration 59 SELF TEST Used to self test the device Tests are device specific 3 8 Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Table 3 2 Resource Block Parameters Number Parameter Description 60 DEFINE WRITE LOCK Allows the operator to select how WRITE LOCK behaves The initial value is lock everything If the value is set to lock only physical device then the resource and transducer blocks of the device will be locked but changes to
91. des In this mode changes can be made to all configurable parameters Alarm Detection A block alarm will be generated whenever the BLOCK ERR has an error bit set The type of block errors for the ISEL block are defined above Process Alarm detection is based on the OUT value The alarm limits of the following standard alarms can be configured High HI LIM High high HI HI LIM Lo LO LIM Lolow LO LO LIM In order to avoid alarm chattering when the variable is oscillating around the alarm limit an alarm hysteresis in percent of the PV span can be set using the ALARM HYS parameter The priority of each alarm is set in the following parameters HI PRI HI HI PRI LO PRI LO LO PRI Number Description 0 The priority of an alarm condition changes to 0 after the condition that caused the alarm is corrected 1 An alarm condition with a priority of 1 is recognized by the system but is not reported to the operator 2 An alarm condition with a priority of 2 is reported to the operator but does not require operator attention such as diagnostics and system alerts 3 7 Alarm conditions of priority 3 to 7 are advisory alarms of increasing priority 8 15 Alarm conditions of priority 8 to 15 are critical alarms of increasing priority Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Block Execution The ISEL function block reads the values and sta
92. dvisory Excessive Rate of Change Maintenance CJC Degraded If T C sensors are being used restart the device If condition persists replace the device Maintenance Body Temperature Out Verify the ambient temperature is within of Range operating limits Maintenance Sensor 1 Degraded Confirm the operating range of Sensor 1 and or verify the sensor connection and device environment Maintenance Sensor 2 Degraded Confirm the operating range of Sensor 2 and or verify the sensor connection and device environment Maintenance Sensor 3 Degraded Confirm the operating range of Sensor 3 and or verify the sensor connection and device environment Maintenance Sensor 4 Degraded Confirm the operating range of Sensor 4 and or verify the sensor connection and device environment Maintenance Sensor 5 Degraded Confirm the operating range of Sensor 5 and or verify the sensor connection and device environment Maintenance Sensor 6 Degraded Confirm the operating range of Sensor 6 and or verify the sensor connection and device environment Maintenance Sensor 7 Degraded Conform the operating range of Sensor 7 and or verify the sensor connection and device environment Reference Manual 00809 0100 4697 Rev EA October 2011 Hosemount 848T Transducer Blocks Alarm Type Active Event Recommended Action Maintenance Sensor 8 Degraded Confirm the operating range of Sensor 8 and or verify the se
93. e Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Canadian Standards Association CSA Certifications Explosion Proof and Dust Ignition Proof Class Division 1 Groups B C and D Class Division 1 Groups E Class Ill Must be installed in enclosure option JX3 Install per drawing 00848 1041 Conduit seal not required Suitable for use in Class Division 2 Groups A B C D when installed per Rosemount drawing 00848 4405 Temperature Code 50 lt Tamb lt 60 Must be installed in a suitable enclosure as determined acceptable by the local inspection authority Intrinsically Safe Division 2 For use in Class Division 1 Groups A B C D when installed per Rosemount drawing 00848 4405 Temperature Code T3C Tamb 50 to 60 Suitable for Class Division 2 Groups A B C D Rated 42 4 VDC max Not valid with S002 option Table B 5 CSA Approved Entity Parameters Power Bus Sensor Vmax 30 V Voc 12 5 V Imax 900 mA Isc 4 8 mA 2 1nF 15 mW L 0 1 2 pF LA 1H 1 Entity parameters apply to entire device not individual sensor channels IF FISCO Intrinsically Safe For use in Class Division 1 Groups A B C D when installed per Rosemount drawing 00848 4405 Temperature Code Tamb 50 to 60 Suitable for Class Division 2 Groups A B C D Rated 42 4
94. e block supports signal status propagation There is process alarm detection in the Input Selector function block Table D 6 lists the ISEL block parameters and their descriptions units of measure and index numbers The block execution time is 30 ms DISABLE 15 DISABLE 23 DISABLE 3H DISABLE 4 5 DISABLE 5 3 DISABLE 6 DISABLE 7 3 DISABLE 8H OP SELECTEj SELECTED IN 1 8 Input DISABLE 1 8 Discrete input used to disable the associated input channel SELECTED The selected channel number OUT The block output and status OUT_D Discrete output that signals a selected alarm condition Table D 6 Input Selector Function Block Parameters Number Parameter Units Description 1 ST_REV None The revision level of the static data associated with the input selector block The revision value will be incremented each time a static parameter value in the block is changed 2 TAG_DESC None The user description of the intended application of the block 3 STRATEGY None The strategy field can be used to identify groupings of blocks This data is not checked or processed by the block 4 ALERT_KEY None The identification number of the plant unit This information may be used in the host for sorting alarms etc 5 MODE_BLK None The actual target permitted and normal modes of the block Actual The mode the block is currently in Target The mode to go to Permitted Allowed modes that ta
95. easing limit selected is required to be a negative value 3 3 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 2011 COMMON CONFIGURATIONS FOR HIGH DENSITY APPLICATIONS 1 2 Out 3 Out 4 Out 5 MAI on outs Block Out 7 Out_8 3 4 6 Setthe Deadband from 0 to 90 This threshold is used to clear the PV status 7 Set Status Priority This determines what happens when the specific limit has been exceeded No Alert Ignores limit settings Advisory Sets Advisory Plant Web Alert but does not do anything with PV status Warning Sets a Maintenance Plant Web Alert and sets PV status to uncertain Failure Sets A Failure Plant Web Alert and sets PV status to Bad 8 Setmode to Enabled for specific sensor For the application to work properly configure the links between the function blocks and schedule the order of their execution The Graphical User Interface GUI provided by the FOUNDATION fieldbus host or configuration tool will allow easy configuration The measurement strategies shown in this section represent some of the common types of configurations available in the 848T Although the appearance of the GUI screens will vary from host to host the configuration logic is the same NOTE Please ensure that the host system or configuration tool is properly configured before downloading the transmitter configuration If
96. echnology Device 5 C 3 Block Operation os eee ite Gale by eel Bea Euer Pew ed C 3 Instrument Specific Function 5 C 3 AIGIS bte b certe b eR RE EE eH C 3 Network C 4 Link Active Scheduler 5 C 4 Addressing t RR M n CK nd C 6 Scheduled Transfers C 6 Unscheduled Transfers C 7 Function Block C 8 APPENDIX D Analog Input Al Function D 1 Function Blocks Functionality pital pru abet ad ee dared D 3 Al Block Troubleshooting D 8 Multiple Analog Input MAI Function D 9 Functionality 22 e iet pb E PREX ER Ens D 10 MAI Block D 14 Input Selector Function Block D 15 Functionally AS D 17 ISEL Block 0 D 20 TOC 2 Reference Manual 00809 0100 4697 Rev EA October 2011 Hosemount 848T Section 1 SAFETY MESSAGES Warnings ROSEMOUNT Introduction Safety Messages page 1 1 Overview
97. emount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 B 10 2 7 End users are not permitted to change any component s insides but 2 8 to settle the problem in conjunction with manufacturer to avoid damage to the product During installation use and maintenance of this product observe following standards GB3836 13 1997 Electrical apparatus for explosive gas atmospheres Part 13 Repair and overhaul for apparatus used in explosive gas atmospheres GB3836 15 2000 Electrical apparatus for explosive gas atmospheres Part 15 Electrical installations in hazardous area other than mines GB3836 16 2006 Electrical apparatus for explosive gas atmospheres Part 16 Inspection and maintenance of electrical installation other than mines GB50257 1996 Code for construction and acceptance of electric device for explosion atmospheres and fire hazard electrical equipment installation engineering Japanese Certifications 14 TISS Intrinsic Safety FISCO Type 1a Ex ia IIC T4 Certification Number TC19713 TISS Intrinsic Safety FISCO Type 1b Ex IIB T4 Certification Number TC19714 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T INTRINSICALLY SAFE AND NON INCENDIVE INSTALLATIONS Zone 2 Zone 1 Zone 0 category 3 category 2 category 1 Approval Safe Area Division 2 Division 1 GAS I
98. es NIST Monograph 175 100 to 300 212 to 572 6 00 10 80 according to input range 301 to 1820 573 to 3308 1 54 2 78 NIST Type E NIST Monograph 175 200 to 1000 328 to 1832 0 40 0 72 NIST Type J NIST Monograph 175 180 to 760 292 to 1400 0 70 1 26 NIST Type K NIST Monograph 175 180 to 1372 292 to 2501 t 1 00 t 1 80 NIST Type N NIST Monograph 175 200 to 1300 328 to 2372 1 00 1 80 NIST Type R NIST Monograph 175 0 to 1768 32 to 3214 1 50 2 70 NIST Type S NIST Monograph 175 0 to 1768 32 to 3214 1 40 2 52 NIST Type T NIST Monograph 175 200 to 400 328 to 752 0 70 1 26 DINL DIN 43710 200 to 900 328 to 1652 0 70 1 26 DINU DIN 43710 200 to 600 328 to 1112 0 70 1 26 w5Re26 W26Re ASTME 988 96 0 to 2000 32 to 3632 1 60 2 88 GOST Type L GOST R 8 585 2001 200 to 800 392 to 1472 0 71 1 28 Terminal Temperature 50 to 85 58 to 185 3 50 6 30 Ohm Input 0 to 2000 ohms 0 90 ohms Millivolt Input 10 to 100 mV 0 05 mV 1000 mV 10 to 1000 mV 1 0 4 20 Rosemount 4 20 mA 0 01 mA 4 20 mA NAMUR 4 20 mA 0 01 mA Multipoint Sensors 1 Requires the S002 option code 2 Multipoint up to 8 points thermocouples and RTDs are available for purchase with the Rosemount 848T Input ranges and accuracy for these sensors will depend on the specific multipoint sensor chosen For more information contact your local Emerson representative Differential Configura
99. es of the block Actual The mode the block is currently in Target The mode to go to Permitted Allowed modes that target may take on Normal Most common mode for target 6 BLOCK_ERR None This parameter reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown 7 CHANNEL None Allows for custom channel setting Valid values include 0 Unitialized 1 Channels 1 to 8 index values 27 to 34 can only be set to their corresponding channel number i e CHANNEL_X X 2 Custom settings index values 27 to 34 can be configured for any valid channel as defined by the DD 8 9 10 11 OUT 1 2 3 4 5 EU of OUT SCALE The block output value and status 12 13 14 6 7 8 15 16 UPDATE EVT None This alert is generated by any change to the static data 17 BLOCK ALM None The block alarm is used for all configuration hardware connection feature or System problems in the block The cause of the alert is entered in the subcode field The first alert to become active will set the Active status in the Status parameter As Soon as the Unreported status is cleared by the alert reporting task another block may be reported without clearing the Active status if the subcode has changed 18 SIMULATE None A group of data that contains the current sensor transducer value and status and the enable disable bit D 9
100. f the electronics module and is labeled SECURITY See Figure 2 8 for switch location on the transmitter label Simulate Enable The switch labeled SIMULATE ENABLE is used in conjunction with the Analog Input and Multiple Analog Input MAI function blocks This switch is used to simulate temperature measurement Not Used The switch is not functional Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T TAGGING Commissioning Tag The 848T has been supplied with a removable commissioning tag that contains both the Device ID the unique code that identifies a particular device in the absence of a device tag and a space to record the device tag the operational identification for the device as defined by the Piping and Instrumentation Diagram P amp ID When commissioning more than one device on a fieldbus segment it can be difficult to identify which device is at a particular location The removable tag provided with the transmitter can aid in this process by linking the Device ID to its physical location The installer should note the physical location of the transmitter on both the upper and lower location of the commissioning tag The bottom portion should be torn off for each device on the segment and used for commissioning the segment in the control system Figure 2 9 Commissioning Tag COMMISSIONING TAG Device ID evcs 0011510848 FR TEMP 0x810AACOS 0X810AACOS Device Tag
101. function blocks will be allowed 61 SAVE CONFIG NOW Allows the user to optionally save all non volatile information immediately 62 SAVE CONFIG BLOCKS Number of EEPROM blocks that have been modified since last burn This value will count down to zero when the configuration is saved 63 START WITH DEFAULTS 0 Uninitialized 1 do not power up with NV defaults 2 power up with default node address 3 power up with default pd tag and node address 4 power up with default data for the entire communications stack no application data 64 SIMULATE IO Status of Simulate jumper switch 65 SECURITY IO Status of Security jumper switch 66 SIMULATE STATE The state of the simulate jumper 0 Uninitialized 1 Jumper switch off simulation not allowed 2 Jumper switch on simulation not allowed need to cycle jumper switch 3 Jumper switch on simulation allowed 67 DOWNLOAD MODE Gives access to the boot block code for over the wire downloads 0 Uninitialized 1 Run Mode 2 Download Mode 68 RECOMMENDED ACTION Enumerated list of recommended actions displayed with a device alert 69 FAILED PRI Designates the alarming priority of the FAILED ALM 70 FAILED ENABLE Enabled FAILED ALM alarm conditions Corresponds bit for bit to the FAILED ACTIVE A bit on means that the corresponding alarm condition is enabled and will be detected A bit off means the corresponding alarm condition is disabled and will not be detecte
102. he status is set to Bad Out of Service for each channel The BLOCK ERR parameter shows Out of Service In this mode changes can be made to all configurable parameters The target mode of a block may be restricted to one or more of the supported modes Transducer Block Alarm Detection Alarms are not generated by the transducer block By correctly handling the status of the channel values the down stream block Al or MAI will generate the necessary alarms for the measurement The error that generated this alarm can be determined by looking at BLOCK ERR XD ERROR Transducer Block Status Handling Normally the status of the output channels reflect the status of the measurement value the operating condition of the measurement electronics card and any active alarm conditions In a transducer PV reflects the value and status quality of the output channels Table 3 10 Transducer Block Parameters Number Parameter Description 0 BLOCK 1 ST REV The revision level of the static data associated with the function block 2 TAG DESC The user description of the intended application of the block 3 STRATEGY The strategy field can be used to identify grouping of blocks 4 ALERT KEY The identification number of the plant unit 5 MODE BLK The actual target permitted and normal modes of the block 6 BLOCK ERR This parameter reflects the error status associated with the hardware or software components associ
103. he SENSOR STATUS parameter See Table 3 16 on page 3 21 4 4 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Appendix A FUNCTIONAL SPECIFICATIONS ROSEMOUNT Reference Data Functional Specifications page A 1 Physical Specifications page A 3 Performance Specifications page A 4 Function Blocks page 4 Dimensional Drawings page A 8 Ordering Information page A 12 Inputs Eight independently configurable channels including combinations of 2 and 3 wire RTDs thermocouples mV 2 and 3 wire and ohm inputs 4 20 mA inputs using optional connector s Outputs Manchester encoded digital signal that conforms to IEC 61158 and ISA 50 02 Status 600 Vdc channel to channel isolation 10 Vdc channel to channel isolation for all operating conditions with maximum 150 m 500 ft of sensor lead length 18 AWG Ambient Temperature Limits 40 to 185 F 40 to 85 Isolation Isolation between all sensor channels is rated to 10Vdc over all operating conditions No damage will occur to the device with up to 600 Vdc between any sensor channel Power Supply Powered over FOUNDATION fieldbus with standard fieldbus power supplies The transmitter operates between 9 0 and 32 0 V dc 22 mA maximum Transmitter p
104. he correct screw terminals Power is polarity insensitive allowing the user to connect positive or negative to either Fieldbus wiring terminal labeled Bus Replace the enclosure cover and securely tighten all cover screws Enclosure Cover Screw 4 Power Signal Cable Gland Use the following steps to install the 848T with Conduit Entries 1 2 Remove the junction box cover by unscrewing the four cover screws Remove the five conduit plugs and install five conduit fittings supplied by the installer Run pairs of sensor wires through each conduit fitting Install the sensor wires into the correct screw terminals follow the label on the electronics module Install the power signal wires into the correct screw terminals Power is polarity insensitive allowing the user to connect positive or negative to either Fieldbus wiring terminal labeled Replace the junction box cover and securely tighten all cover screws Sensor 3 and 4 Conduit Sensor 7 and 8 Conduit Enclosure Cover Screw Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Section 3 SAFETY MESSAGES Warnings ROSEMOUNT Configuration Safety Messages page 3 1 Configuration page 3 2 Common Configurations for High Density Applications page 3 4 Block Configuration page 3 7
105. he transmitter Make connections for millivolt inputs using copper wire Use shielding for long runs of wire Analog Inputs The analog connector converts the 4 20 signal to a 20 100 mV signal that can be read by the 848T and transmitted using FOUNDATION fieldbus Use the following steps when installing the 848T with the analog connector 1 The 848T when ordered with option code S002 comes with four analog connectors Replace the standard connector with the analog connector on the desired channels 2 Wire one or two analog transmitters to the analog connector according to Figure 2 5 There is space available on the analog connector label for identification of the analog inputs NOTE Power supply should be rated to support the connected transmitter s 3 If the analog transmitters can communicate using HART protocol the analog connectors are supplied with the ability to switch in a 250 ohm resistor for HART communication see Figure 2 6 One switch is supplied for each input top switch for A inputs and bottom switch for B inputs Setting the switch in the ON position to the right bypasses the 250 ohm resistor Terminals are provided for each analog input to connect a Field Communicator for local configuration 2 5 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 2011 Figure 2 5 848T Analog Input Wiring Diagram aE ud
106. iguration Sensor Input Trim user input trim See the host system documentation for information on running DD methods from the host system If the FOUNDATION fieldbus host or configuration tool does not support DD methods refer to Block Configuration on page 3 7 for information on how to modify sensor configuration parameters Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Alarms Damping Configure the Differential Sensors Configure Measurement Validation Use the following steps to configure the alarms which are located in the Resource Function Block 1 Setthe resource block to OOS 2 Set WRITE_PRI to the appropriate alarm level WRITE PRI has a selectable range of priorities from 0 to 15 see Alarm Priority Levels on page 3 11 Set the other block alarm parameters at this time 3 Set CONFIRM TIME to the time in 32 of a millisecond that the device will wait for confirmation of receiving a report before trying again the device does not retry if CONFIRM TIME is 0 4 SetLIM NOTIFY to a value between zero and MAX NOTIFY LIM NOTIFY is the maximum number of alert reports allowed before the operator needs to acknowledge an alarm condition 5 Enable the reports bit in FEATURES SEL When Multi bit alerts is enabled every active alarm is visible for any of the eight sensors generated by a PlantWeb alert This is different than only viewing the highest priority alarm 6 Setthe reso
107. imulation is enabled PV Channel Value D 11 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table D 5 BLOCK ERR Conditions Indirect Indirect signal conversion converts the signal linearly to the accessed channel input value or the simulated value when simulation is enabled from its specified range XD SCALE to the range and units of the PV and OUT parameters OUT SCALE granne x EU 100 va EU 0 EU 0 OUT_SCALE values ev Indirect Square Root Indirect Square Root signal conversion takes the square root of the value computed with the indirect signal conversion and scales it to the range and units of the PV and OUT parameters Channel Value an 100 x EU 100 EU 0 EU 0 OUT_SCALE values When the converted input value is below the limit specified by the LOW_CUT parameter and the Low Cutoff I O option IO OPTS is enabled True a value of zero is used for the converted value PV This option is useful to eliminate false readings when the differential temperature measurement is close to zero and it may also be useful with zero based measurement devices such as flowmeters NOTE Low Cutoff is the only I O option supported by the MAI block Set the I O option in Manual or Out of Service mode only Block Errors Table D 5 lists conditions reported in the BLOCK ERR parameter Conditions in bold are inactive for the MAI block and
108. ins the bid begins operating as the LAS immediately upon completion of the bidding process Link masters that do not become the LAS act as basic devices However the link masters can act as LAS backups by monitoring the link for failure of the LAS and then bidding to become the LAS when a LAS failure is detected Only one device can communicate at a time Permission to communicate on the bus is controlled by a centralized token passed between devices by the LAS Only the device with the token can communicate The LAS maintains a list of all devices that need access to the bus This list is called the Live List Two types of tokens are used by the LAS A time critical token Compel Data CD is sent by the LAS according to a schedule A non time critical token pass token PT is sent by the LAS to each device in ascending numerical order according to address Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Figure C 3 LAS Parameter diagram There may be many LM devices on a segment but only the LAS is actively controlling communication traffic The remaining LM devices on the segment are in a stand by state ready to take over if the primary LAS fails This is achieved by constantly monitoring the communication traffic on the bus and determining if activity is not present Since there can be multiple LM devices on the segment when the primary LAS fails the device with the lowest node address will become the p
109. iption DUAL SENSOR MODE Disables or enables a sensor for configuration DUAL SENSOR TAG Differential description INPUT A Sensor to be used in DUAL SENSOR CALC INPUT B Sensor to be used in DUAL SENSOR CALC DUAL SENSOR CALC Equation used for the dual sensor measurement including Not Used Difference Input A Input B and Absolute Difference Input A Input B ENG UNITS Units used to display sensor parameter UPPER RANGE Upper Differential Limit Input A High Input B Low LOWER RANGE Lower Differential Limit Input A Low Input B High STATUS Sub Parameter Structure Table 3 19 Validation Value Sub Parameter Structure 3 22 0x00 Active Dual Sensor Status Table 0x01 Out of Service 0x02 Inactive 0x04 Component Sensor Open 0x08 Component Sensor Short 0x10 Component Sensor Out of Range or Degraded 0x20 Sensor Out of Limits 0x40 Component Sensor Inactive 0x80 Configuration Error Validation Value Sub Parameter Structure Parameter Description VALIDATION_STATUS State of the channel specific measurement validation measurement DEVIATION_VALUE Deviation output value DEVIATION_STATUS Status of the deviation output RATE_OF_CHANGE_VALUE Rate of change value output RATE_OF_CHANGE_STATUS Status of Rate of change output Reference Ma
110. k output value and status OUT D Discrete output that signals a selected alarm condition Filtering The filtering feature changes the response time of the device to smooth variations in output readings caused by rapid changes in input Adjust the filter time constant in seconds using the PV FTIME parameter Set the filter time constant to zero to disable the filter feature Signal Conversion Set the signal conversion type with the Linearization Type L TYPE parameter View the converted signal in percent of XD SCALE through the FIELD VAL parameter _ 100 x Channel Value EU 0 FIELD VAL E ee 002 EU 100 EU 0 SCALE values Choose from direct indirect or indirect square root signal conversion with the L TYPE parameter Direct Direct signal conversion allows the signal to pass through the accessed channel input value or the simulated value when simulation is enabled PV Channel Value Indirect Indirect signal conversion converts the signal linearly to the accessed channel input value or the simulated value when simulation is enabled from its specified range XD SCALE to the range and units of the PV and OUT parameters OUT SCALE PV x EU 100 EU 0 0 100 OUT SCALE values Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Table D 2 BLOCK ERR Conditions Indirect Square Root Indirect Square Root signal conversio
111. l Junction Box style JS Front View Side View i I 1 H Sq on 4 5 _ 114 S 7 5 190 fully assembled Dimensions in inches millimeters Aluminum Plastic Junction Box Mounted on a Vertical Pipe Stainless Steel Junction Box Mounted on a Vertical Pipe 11 Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 ORDERING INFORMATION Table A 1 Rosemount 848T FOUNDATION fieldbus Ordering Information The Standard offering represents the most common options The starred options X should be selected for best delivery The Expanded offering is subject to additional delivery lead time Model Product Description 848T High Density Temperature Measurement Family Transmitter Output Standard Standard F FOUNDATION fieldbus digital signal includes Al MAI and ISEL function blocks and Backup Link Active Scheduler Rosemount Junction Product Certifications Box required Standard Standard Intrinsic Safety No I3 NEPSI Intrinsic Safety No l4 TIIS Intrinsically Safety FISCO Type 1 No H4 TIIS Intrinsic Safety FISCO Type 1b No 152 FM Intrinsically Safe No le CSA Intrinsically Safe No I7 IECEx Intrinsic Safety No FISCO Intrinsic Safety No
112. log input Set XD SCALE EU 0 to 20 Set XD SCALE EU 100 to 100 Set XD SCALE ENGUNITS to mV SET OUT SCALE to match the desired scale and units for the connected analog transmitter Flow Example 0 200 gpm OUT SCALE EU 0 0 OUT SCALE EU 100 200 OUT SCALE ENGUNITS SetL TYPE to INDIRECT Set the MODE BLK TARGET to AUTO or set the SENSOR MODE to operation Reference Manual 00809 0100 4697 Rev EA October 2011 Hosemount 848T BLOCK CONFIGURATION Resource Block The resource block defines the physical resources of the device including type of measurement memory etc The resource block also defines functionality such as shed times that is common across multiple blocks The block has no linkable inputs or outputs and it performs memory level diagnostics Table 3 2 Resource Block Parameters Number Parameter Description 01 ST REV The revision level of the static data associated with the function block 02 TAG DESC The user description of the intended application of the block 03 STRATEGY The strategy field can be used to identify grouping of blocks 04 ALERT KEY The identification number of the plant unit 05 MODE BLK The actual target permitted and normal modes of the block For further description see the Mode parameter formal model in FF 890 06 BLOCK ERR This parameter reflects the error status asso
113. lti Bit Alerts are disabled If MBA is enabled all alerts are visible 3 13 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Recommended Actions for PlantWeb Alerts Table 3 7 RB RECOMMENDED ACTION 8 14 ADVISE MASK The ADVISE MASK parameter will mask any of the failed conditions listed in ADVISE ENABLED A bit on means the condition is masked out from alarming and will not be reported ADVISE PRI ADVISE PRI designates the alarming priority of the ADVISE ALM see Table 3 4 on page 3 11 The default is 0 and the recommended values are 1 or 2 ADVISE ACTIVE The ADVISE ACTIVE parameter displays which of the advisories is active Only the advisory with the highest priority will be displayed This priority is not the same as the ADVISE PRI parameter described above This priority is hard coded within the device and is not user configurable ADVISE ALM ADVISE ALM is an alarm indicating advisory alarms These conditions do not have a direct impact on the process or device integrity RECOMMENDED ACTION The RECOMMENDED ACTION parameter displays a text string that will give a recommended course of action to take based on which type and which specific event of the PlantWeb alerts are active Alarm Type Active Event Recommended Action None None No action is required Advisory PWA Simulate Active Disable simulation to return to process monitoring Advisory Excessive Deviation A
114. manufacturer As a result the algorithm may cause the generation of events There is only one resource block defined for a device For example when the mode of a resource block is Out of Service OOS it impacts all of the other blocks Transducer Blocks Transducer blocks connect function blocks to local input output functions They read sensor hardware and write to effector actuator hardware This permits the transducer block to execute as frequently as necessary to obtain good data from sensors and ensure proper writes to the actuator without burdening the function blocks that use the data The transducer block also isolates the function block from the vendor specific characteristics of the physical I O When an alert occurs execution control sends an event notification and waits a specified period of time for an acknowledgment to be received This occurs even if the condition that caused the alert no longer exists If the acknowledgment is not received within the pre specified time out period the event notification is retransmitted assuring that alert messages are not lost C 3 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 NETWORK COMMUNICATION Figure C 2 Simple Single Link Fieldbus Network Link Active Scheduler LAS Two types of alerts are defined for the block events and alarms Events used to report a status change when a block leaves a particular state such as
115. me effect as removing power from the device and reapplying power Restart with Defaults Performing a Restart with Defaults resets the static parameters for all of the blocks to their initial state This is commonly used to change the configuration and or control strategy of the device including any custom configurations done at the Rosemount factory 4 8 Rosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 TROUBLESHOOTING FOUNDATION fieldbus Symptom Possible Cause Corrective Action Device does not show up in the live list Network configuration parameters are incorrect Set the network parameters of the LAS host system according to the FF Communications Profile ST 8 MRD 4 DLPDU PhLO 4 MID 7 TSC 4 1 ms T1 96000 3 seconds T2 9600000 300 seconds T3 480000 15 seconds Network address is not in polled range Set first Unpolled Node and Number of UnPolled Nodes so that the device address is within range Power to the device is below the 9 VDC minimum Increase the power to at least 9V Noise on the power communication is too high Verify terminators and power conditioners are within specification Verify that the shield is properly terminated and not grounded at both ends It is best to ground the shield at the power conditioner Device that is acting as a LAS does not send out CD LAS Scheduler was not downloade
116. measurement so verify that the selected channel contains the appropriate measurement or derived value Refer to Table 3 5 on page 3 11 for a listing of available channels on the 848T L TYPE Select Direct when the measurement is in the desired engineering units for the block output Select Indirect when converting the measured variable into another for example pressure into level or flow into energy SCALING XD SCALE provides the range and units of the measurement and OUT SCALE provides the range and engineering units of the output OUT SCALE is only used when in indirect or indirect square root Corrective Action Mode will not leave OOS Target mode not set Set target mode to something other than OOS Configuration error BLOCK ERR will show the configuration error bit set The following are parameters that must be set before the block is allowed out of OOS CHANNEL must be set to a valid value and cannot be left at initial value of 0 XD SCALE UNITS INDEX must match the units in the transducer block channel value Setting the units in the block automatically sets them in the XD BLOCK L TYPE must be set to Direct Indirect or Indirect Square Root and cannot be left at initial value of 0 Resource block The actual mode of the Resource block is OOS See Resource Block Diagnostics for corrective action make sense Schedule Block is not scheduled and therefore cannot execute to go to Target
117. n each transducer block 13 SENSOR 1 CONFIG Sensor Configuration Parameters Please see tables below for a list of sub parameters that pertain to Sensor Configuration functions 14 PRIMARY VALUE 1 The measured value and status available to the function block 15 SENSOR 2 CONFIG Sensor Configuration parameters Please see tables below for a list of sub parameters that pertain to Sensor Configuration functions 16 PRIMARY VALUE 2 The measured value and status available to the function block 17 SENSOR 3 CONFIG Sensor Configuration Parameters Please see tables below for a list of sub parameters that pertain to Sensor Configuration functions 18 PRIMARY VALUE 3 The measured value and status available to the function block 19 SENSOR 4 CONFIG Sensor Configuration Parameters Please see tables below for a list of sub parameters that pertain to Sensor Configuration functions 20 PRIMARY VALUE 4 The measured value and status available to the function block 21 SENSOR 5 CONFIG Sensor Configuration Parameters Please see tables below for a list of sub parameters that pertain to Sensor Configuration functions 22 PRIMARY VALUE 5 The measured value and status available to the function block 23 SENSOR 6 CONFIG Sensor Configuration Parameters Please see tables below for a list of sub parameters that pertain to Sensor Configuration functions 24 PRIMARY VALUE 6 The measured value and status available to the function block 25 SENSOR 7 CONFIG Sensor Configur
118. n takes the square root of the value computed with the indirect signal conversion and scales it to the range and units of the PV and OUT parameters FIELD VA E x EU 100 EU 0 EU 0 100 OUT SCALE values When the converted input value is below the limit specified by the LOW CUT parameter and the Low Cutoff I O option IO OPTS is enabled True a value of zero is used for the converted value PV This option eliminates false readings when the differential pressure measurement is close to zero and it may be useful with zero based measurement devices such as flowmeters NOTE Low Cutoff is the only I O option supported by the Al block Set the I O option when the block is OOS Block Errors Table D 2 lists conditions reported in the BLOCK_ERR parameter Conditions in bold are inactive for the Al block and are given here for reference Number Name and Description 0 Other 1 Block Configuration Error the selected channel carries a measurement that is incompatible with the engineering units selected in XD SCALE the L TYPE parameter is not configured or CHANNEL zero 2 Link Configuration Error 3 Simulate Active Simulation is enabled and the block is using a simulated value in its execution 4 Local Override 5 Device Fault State Set 6 Device Needs Maintenance Soon 7 Input Failure Process Variable has Bad Status The hardware is bad or a bad status i
119. ng Rosemount Far East Instrument Co Limited No 6 North Street Hepingli Dong Cheng District Beijing 100013 China T 86 10 6428 2233 F 86 10 6422 8586 EMERSON Process Management
120. nsor connection and device environment Failed Failed Sensor 1 Failure Sensor 2 Failure Verify the Sensor 1 Instrument process is within the Sensor range and or confirm sensor configuration and wiring Verify the Sensor 2 Instrument process is within the Sensor range and or confirm sensor configuration and wiring Failed Sensor 3 Failure Verify the Sensor 3 Instrument process is within the Sensor range and or confirm sensor configuration and wiring Failed Sensor 4 Failure Verify the Sensor 4 Instrument process is within the Sensor range and or confirm sensor configuration and wiring Failed Sensor 5 Failure Verify the Sensor 5 Instrument process is within the Sensor range and or confirm sensor configuration and wiring Failed Sensor 6 Failure Verify the Sensor 6 Instrument process is within the Sensor range and or confirm sensor configuration and wiring Failed Sensor 7 Failure Verify the Sensor 7 Instrument process is within the Sensor range and or confirm sensor configuration and wiring Failed Sensor 8 Failure Verify the Sensor 8 Instrument process is within the Sensor range and or confirm sensor configuration and wiring Failed Body Temperature Failure Verify that the body temperature is within the operating limits of this device Failed Hardware Software Incompatible Contact Service Center to verify the Device Information RESOURCE HA
121. nual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Table 3 20 Validation Config Sub Parameter Structure Validation Value Sub Parameter Structure Parameter Description VALIDATION MODE Activates the measurement validation data gathering process 0 Disable 1 Enable SAMPLE RATE Number of seconds per sample used for measurement validation data collection This shouldn t exceed 10 seconds per sample but currently there are no upper limits DEVIATION LIMIT Sets the limit for the deviation diagnostic DD limits the upper range to 10 DEVIATION ENG UNITS Units tied to the deviation output value DEVIATION ALERT SEVERITY Advisory Maintenance Failure 0 Disabled Does not use the limits but provides an output 1 Advisory No effect on sensor status sets advisory PWA 2 Maint Sets sensor status to uncertain sets advisory PWA 3 Failure Sets sensor status to Bad sets advisory PWA DEVIATION PCNT LIM HYST Deviation Hysteresis Limit 1 DEVIATION PCNT LIM HYST 100 DEVIATION LIMIT RATE INCREASING LIMIT Increasing Rate of Change limit set point RATE DECREASING LIMIT Decreasing Rate of Change limit set point RATE ENG UNITS Units tied to the rate of change output value RATE ALERT SEVERITY Advisory Maintenance Failure 0 Disabled Does not use the limits but provides output 1 Advisory No effect on sensor status
122. ober 201 1 Hosemount 848T Section 4 SAFETY MESSAGES Warnings FOUNDATION FIELDBUS INFORMATION ROSEMOUNT Operation and Maintenance Safety Messages page 4 1 Foundation fieldbus Information page 4 1 Hardware Maintenance page 4 3 Troubleshooting page 4 4 Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations Information that potentially raises safety issues is indicated by a warning symbol A Please refer to the following safety messages before performing an operation preceded by this symbol Failure to follow these installation guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Process leaks could result in death or serious injury Donotremove the thermowell while in operation Removing while in operation may cause process fluid leaks Install and tighten thermowells and sensors before applying pressure or process leakage may result Electrical shock could cause death or serious injury Ifthe senor is installed in a high voltage environment and a fault condition or installation error occurs high voltage may be present on transmitter leads and terminals Use extreme caution when making contact with the leads and terminals FOUN
123. on has different requirements for grounding Use the grounding options recommended by the facility for the specific sensor type or begin with grounding option 1 most common Ungrounded Thermocouple mV and RTD Ohm Inputs Option 1 1 Connect signal wiring shield to the sensor wiring shield s 2 Ensure the shields are tied together and electrically isolated from the transmitter enclosure 3 Only ground shield at the power supply end 4 Ensure that the sensor shield s is electrically isolated from the surrounding grounded fixtures Power 848T upply e Sensor Wires Shield ground point Option 2 1 Connect sensor wiring shield s to the transmitter enclosure only if the enclosure is grounded 2 Ensure the sensor shield s is electrically isolated from surrounding fixtures that may be grounded 3 Ground signal wiring shield at the power supply end Power upply Sensor Wires Shield ground points 2 8 Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Grounded Thermocouple Inputs 1 Ground sensor wiring shield s at the sensor 2 Ensure that the sensor wiring and signal wiring shields are electrically isolated from the transmitter enclosure 3 Do not connect the signal wiring shield to the sensor wiring shield s 4 Ground signal wiring shield at the power supply end Power 848 upply e Sensor Wires
124. ounting 2 1 sche ERES 2 11 Configuration 3 7 2 2 2 Inch Pipe Stand 2 3 Errors 3 10 Transmitter Wiring Diagram 2 4 DIN Rail Without an Enclosure TA 3 10 Troubleshooting 4 4 2 2 RISE VETERI Analog Input Function Block D 8 Automatic 3 11 Panel with a Junction 2 2 Differential Transducer Block 4 4 Out of Service OOS 3 11 Multiple Analog Input 2 FOUNDATION Fieldbus 4 4 4 Parameters 3 7 Configuration 3 6 Input Selector Function Block PlantWeb Alerts Multiple Analog Input Block Recommended Actions 3 14 D 20 Troubleshooting D 14 PlantWeb Alerts 3 11 Multiple Analog Input Block D 14 Multiple Analog Input Function Block m Resource Block 4 4 advisory alarms 3 13 D 9 s Sensor Transducer Block 4 4 Application Inf ti D 14 failed alarms 3 11 MMC 3 6 maint alarms 3 12 S epulis Troubleshooting 4 4 U D 12 Unscheduled T 7 Filtering D 11 NBN RU MUS Sen i pite Functionality D 10 S Scheduled Transfers C 6 Client C 6 wala ced 2 4 Publisher C 6 Communication Check 4 3 Report Distribution C 6 Power Check 4 3 Server C 6 Subscriber C 6 Security Switch 2 10 Index 2 Reference Manual 00809 01
125. ower terminals are rated to 42 4 V dc 1 Reference conditions are 40 to 60 40 to 140 F with 30 m 100 ft of sensor lead length 18 AWG wire EMERSON WWW rosemount com Process Management Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 A 2 Transient Protection The transient protector option code T1 helps to prevent damage to the transmitter from transients induced on the loop wiring by lightning welding heavy electrical equipment or switch gears This option is installed at the factory for the Rosemount 848T and is not intended for field installation Update Time Approximately 1 5 seconds to read all 8 inputs Humidity Limits 0 99 non condensing relative humidity Turn on Time Performance within specifications is achieved in less than 30 seconds after power is applied to the transmitter Alarms The AI and ISEL function blocks allow the user to configure the alarms to HI HI HI LO or LO LO with a variety of priority levels and hysteresis settings Backup Link Active Scheduler LAS The transmitter is classified as a device link master which means it can function as a Link Active Scheduler LAS if the current link master device fails or is removed from the segment The host or other configuration tool is used to download the schedule for the application to the link master device In the absence of a primary link master the transmitter will claim the LAS and provide pe
126. parameter The priority of each alarm is set in the following parameters HI PRI e HI HI PRI LO PRI LO LO PRI Number Description 0 The priority of an alarm condition changes to 0 after the condition that caused the alarm is corrected 1 An alarm condition with a priority of 1 is recognized by the system but is not reported to the operator 2 An alarm condition with a priority of 2 is reported to the operator but does not require operator attention such as diagnostics and system alerts 3 7 Alarm conditions of priority 3 to 7 are advisory alarms of increasing priority 8 15 Alarm conditions of priority 8 to 15 are critical alarms of increasing priority Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Status Handling Normally the status of the PV reflects the status of the measurement value the operating condition of the I O card and any active alarm condition In Auto mode OUT reflects the value and status quality of the PV In Man mode the OUT status constant limit is set to indicate that the value is a constant and the OUT status is Good If the sensor limit exceeds the high or low range PV status is set high or low and EU range status is set to uncertain In the STATUS OPTS parameter select from the following options to control the status handling BAD if Limited Sets the OUT status quality to Bad when the value is higher or lower than the sensor limits
127. perature Out of Range CJC Degraded 10 N Oo A MAINT MASK The MAINT MASK parameter will mask any of the failed conditions listed in MAINT ENABLED A bit on means that the condition is masked out from alarming and will not be reported MAINT PRI MAINT PRI designates the alarming priority of the MAINT ALM Table 3 4 on page 3 11 The default is 0 and the recommended values is 3 to 7 MAINT ACTIVE The MAINT ACTIVE parameter displays which of the alarms is active Only the condition with the highest priority will be displayed This priority is not the same as the MAINT PRI parameter described above This priority is hard coded within the device and is not user configurable MAINT ALM An alarm indicating the device needs maintenance soon If the condition is ignored the device will eventually fail Advisory Alarms An advisory alarm indicates informative conditions that do not have a direct impact on the device s primary functions There are five parameters associated with ADVISE ALARMS they are described below ADVISE ENABLED The ADVISE ENABLED parameter contains a list of informative conditions that do not have a direct impact on the device s primary functions Below is a list of the advisories with the highest priority first Alarm Priority PWA Simulate Active 1 Excessive Deviation 2 Excessive Rate of Change 3 NOTE Alarms are only prioritized if Mu
128. puts 21 SELECTED None The selected input number 1 to 8 or the number of input used for the average output 22 OP SELECT None Overrides the algorithm to select 1 of the 8 inputs regardless of the selection type 23 UPDATE EVT None This alert is generated by any change to the static data 24 BLOCK ALM None The block alarm is used for all configuration hardware connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active will set the Active status in the Status parameter As soon as the Unreported status is cleared by the alert reporting task another block may be reported without clearing the Active status if the subcode has changed 33 AVG USE None Number of parameters to use in the averaging calculation For example if AVG_USE is 4 and the number of connected inputs is 6 then the highest and lowest values would be dropped prior to calculating the average If USE is 2 and the number of connected inputs is 7 then the two highest and lowest values would be dropped prior to calculating the average and the average would be based on the middle three inputs 34 ALARM SUM None The current alert status unacknowledged states and disabled states of the alarms associated with the function block 35 ACK OPTION None Used to set automatic acknowledgement of alarms 36 ALARM HYS Percent The amount the alarm value must return within the alarm limit before the associated
129. r Parameter Units Description 10 XD SCALE None The high and low scale values engineering units code and number of digits to the right of the decimal point associated with the channel input value The XD SCALE units code must match the units code of the measurement channel in the transducer block If the units do not match the block will not transition to MAN or AUTO 11 OUT SCALE None The high and low scale values engineering units code and number of digits to the right of the decimal point associated with OUT when L TYPE is not direct 12 GRANT DENY None Options for controlling access of host computers and local control panels to operating tuning and alarm parameters of the block Not used by device 13 lO OPTS None Allows the selection of input output options used to alter the PV Low cutoff enabled is the only selectable option 14 STATUS OPTS None Allows the user to select options for status handling and processing The options supported in the AI block are the following Propagate fault forward Uncertain if limited Bad if limited Uncertain if Manual mode 15 CHANNEL None The CHANNEL value is used to select the measurement value Configure the CHANNEL parameter before configuring the XD SCALE parameter Refer to Table 3 5 on page 3 11 16 L TYPE None Linearization type Determines whether the field value is used directly Direct is converted linearly Indirect or is converted with the square root Indirect Square Root 17 L
130. re the same The configuration of the MAI function block and its associated output channels depends on the specific application A typical configuration for the MAI block involves the following parameters CHANNEL If the device supports more than one measurement verify that the selected channel contains the appropriate measurement or derived value Refer to Table D 4 on page D 6 for a listing of available channels on the 848T L TYPE Select Direct when the measurement is already in the desired engineering units for the block output Select Indirect when converting the measured variable into another for example pressure into level or flow into energy Select Indirect Square Root when the block I O parameter value represents a flow measurement made using differential pressure and when square root extraction is not performed by the transducer SCALING XD SCALE provides the range and units of the measurement and OUT SCALE provides the range and engineering units of the output MAI Block Troubleshooting Symptom Possible Causes Corrective Action Mode will not leave OOS Target mode not set Set target mode to something other than OOS Configuration error BLOCK ERR will show the configuration error bit set The following are parameters that must be set before the block is allowed out of OOS Initial value is 1 XD SCALE UNITS INDEX must match the units in all the corresponding sensor transducer blocks L TYPE must be set to Di
131. rect Indirect or Indirect Square Root and cannot be left at initial value of 0 Resource block The actual mode of the Resource block is OOS See Resource Block Diagnostics for corrective action Schedule Block is not scheduled and therefore cannot execute to go to Target Mode Typically BLOCK ERR will show Power Up for all blocks that are not scheduled Schedule the block to execute Process and or block Features FEATURES SEL does not have Alerts enabled Enable the Alerts bit alarms will not work Notification LIM NOTIFY is not high enough Set equal to MAX NOTIFY Status Options STATUS OPTS has Propagate Fault Forward bit set This should be cleared to cause an alarm to occur Value of output does not Linearization Type L TYPE must be set to Direct Indirect or Indirect Square Root and cannot be left make sense at initial value of 0 Scaling Scaling parameters are set incorrectly XD SCALE EUO and EU100 should match that of the corresponding sensor transducer block OUT SCALE EUO and EU100 are not set properly Both STBs in an ASIC must be set to auto Best in 1 2 7 8 ASICs in Auto for thermocouples Reference Manual 00809 0100 4697 Rev EA October 2011 Hosemount 848T INPUT SELECTOR FUNCTION BLOCK The Input Selector ISEL function block can be used to select the first good Hot Backup maximum minimum or average of as many as eight input values and place it at the output Th
132. rget may take on Normal Most common mode for target 6 BLOCK_ERR None This parameter reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown 7 OUT OUT_RANGE The primary analog value calculated as a result of executing the function block 8 OUT_RANGE EU of OUT The engineering units code to be used in displaying the OUT parameter and parameters which have the same scaling as OUT 9 GRANT_DENY None Options for controlling access of host computers and local control panels to operating tuning and alarm parameters of the block Not used by device 10 STATUS_OPTS None Allows the user to select options for status handling and processing 11 12 13 IN_ 1 2 3 4 5 Determined by A connection input from another block 14 25 26 6 7 8 source 27 28 D 15 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table D 6 Input Selector Function Block Parameters Number Parameter Units Description 15 16 17 DISABLE 1 2 None A connection from another block that disables the associated input from the selection 18 29 30 3 4 5 6 7 8 31 32 19 SELECT TYPE None Specifies input selection method Methods available include First Good Minimum Maximum Middle Average or Hot Backup 20 MIN GOOD None The minimum number of good in
133. rimary LAS and take control of the bus Using this strategy multiple LAS failures can be handled with no loss of the LAS capability of the communications bus LAS Parameters There are many bus communication parameters but only a few are used For standard RS 232 communications the configuration parameters are baud rate start stop bits and parity The key parameters for H1 FOUNDATION fieldbus are as follows Slot Time ST Used during the bus master election process It is the maximum amount of time permitted for device A to send a message to device B Slot time is a parameter which defines a worst case delay which includes internal delay in the sending device and the receiving device Increasing the value of ST slows down bus traffic because a LAS device must wait longer prior to determining that the LM is down Minimum Inter PDU Delay MID The minimum gap between two messages on the fieldbus segment or it is the amount of time between the last byte of one message and the first byte of the next message The units of the MID are octets An octet is 256 us hence the units for MID are approximately 4 ms This would mean an MID of 16 would specify approximately a minimum of 4 ms between messages on the Fieldbus Increasing the value of MID slows down bus traffic because a larger gap between messages occurs Maximum Response MRD Defines the maximum amount of time permitted to respond to an immediate response request e
134. ritten using an open language called the Device Description Language DDL Parameter transfers between function blocks can be easily verified because all parameters are described using the same language Once written the device description can be stored on an external medium such as a CD ROM or diskette Users can then read the device description from the external medium The use of an open language in the device description permits interoperability of function blocks within devices from various vendors Additionally human interface devices such as operator consoles and computers do not have to be programmed specifically for each type of device on the bus Instead their displays and interactions with devices are driven from the device descriptions Device descriptions may also include a set of processing routines called methods Methods provide a procedure for accessing and manipulating parameters within a device In addition to function blocks fieldbus devices contain two other block types to support the function blocks These are the resource block and the transducer block Resource Blocks Resource blocks contain the hardware specific characteristics associated with a device they have no input or output parameters The algorithm within a resource block monitors and controls the general operation of the physical device hardware The execution of this algorithm is dependent on the characteristics of the physical device as defined by the
135. rmanent control for the H1 segment FOUNDATION fieldbus Parameters Schedule Entries 20 Links 30 Virtual Communications Relationships VCR 20 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T PHYSICAL SPECIFICATIONS Mounting The Rosemount 848T can be mounted directly onto a DIN rail or it can be ordered with an optional junction box When using the optional junction box the transmitter can be mounted onto a panel or a 2 pipe stand with option code B6 Entries for Optional Junction Box No entry Used for custom fittings Cable Gland 9 x M20 nickel plated brass glands for 7 5 11 9 mm unarmored cable Conduit 5 plugged 0 86 in diameter holes suitable for installing 2 NPT fittings Materials of Construction for Optional Junction Box Junction Box Type Paint Aluminum Epoxy Resin Plastic NA Stainless Steel NA Aluminum Explosion proof NA Weight Assembly Weight oz Ib kg Rosemount 848T only 7 5 47 208 Aluminum 78 2 4 89 2 22 Plastic 78 2 4 89 2 22 Stainless Steel 77 0 4 81 2 18 Aluminum Explosion proof 557 34 8 15 5 1 Add 35 2 oz 2 2 Ib 0 998 kg for nickel plated brass glands Environmental Ratings NEMA Type 4X and IP66 with optional junction box JX3 Explosion proof enclosure rated to 4 F 20 C A 3 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 2
136. rrent alert status unacknowledged states unreported states and disabled states of the alarms associated with the function block 38 ACK OPTION Selection of whether alarms associated with the block will be automatically acknowledged 39 WRITE PRI Priority of the alarm generated by clearing the write lock 40 WRITE ALM This alert is generated if the write lock parameter is cleared 41 ITK VER Major revision number of the interoperability test case used in certifying this device as interoperable The format and range are controlled by the Fieldbus FOUNDATION 42 DISTRIBUTOR Reserved for use as distributor ID No FOUNDATION enumerations defined at this time 43 DEV STRING This is used to load new licensing into the device The value can be written but will always read back with a value of 0 44 XD OPTIONS Indicates which transducer block licensing options are enabled 45 FB OPTIONS Indicates which function block licensing options are enabled 46 DIAG OPTIONS Indicates which diagnostics licensing options are enabled 47 MISC OPTIONS Indicates which miscellaneous licensing options are enabled 48 RB SFTWR REV MAJOR Major revision of software that the resource block was created with 49 RB SFTWR REV MINOR Minor revision of software that the resource block was created with 50 RB SFTWR REV BUILD Build of software that the resource block was created with 51 RB SFTWR REV ALL The string will contains the following fields Major rev 1 3 characters
137. s being simulated 8 Output Failure The output is bad based primarily upon a bad input 9 Memory Failure 10 Lost Static Data 11 Lost NV Data 12 Readback Check Failed 13 Device Needs Maintenance Now 14 Power Up 15 Out of Service The actual mode is out of service D 5 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table D 3 Alarm Priority Levels D 6 Modes The Function Block supports three modes of operation as defined by the MODE BLK parameter Manual Man The value of the block output OUT may be set manually Automatic Auto OUT reflects the analog input measurement or the simulated value when simulation is enabled Out of Service OOS The block is not processed FIELD VAL and PV are not updated and the OUT status is set to Bad Out of Service The BLOCK ERR parameter shows Out of Service In this mode changes can be made to all configurable parameters Alarm Detection A block alarm will be generated whenever the BLOCK ERR has an error bit set The types of block error for the block are defined above Process Alarm detection is based on the OUT value Configure the alarm limits of the following standard alarms High HI LIM High high HI HI LIM e Low LO Lowlow LO LO LIM To avoid alarm chatter when the variable is oscillating around the alarm limit an alarm hysteresis in percent of the PV span can be set using the ALARM HYS
138. s in this section may require special precautions to ensure the safety of the personnel performing the operations Information that potentially raises safety issues is indicated by a warning symbol A Please refer to the following safety messages before performing an operation preceded by this symbol Z WARNING Failure to follow these installation guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Process leaks could result in death or serious injury Donotremove the thermowell while in operation Removing while in operation may cause process fluid leaks Install and tighten thermowells and sensors before applying pressure or process leakage may result Electrical shock could cause death or serious injury If the sensor is installed in a high voltage environment and a fault condition or installation error occurs high voltage may be present on transmitter leads and terminals Use extreme caution when making contact with the leads and terminals The 848T is always mounted remote from the sensor assembly There are three mounting configurations e Toa DIN rail without an enclosure Toa panel with an enclosure To a2 in pipe stand with an enclosure using a pipe mounting kit EMERSON WWW rosemount com Process Management Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 2011 Mounting to a DIN Rail Without an Enclo
139. s to prevent the rated voltage 42 4 Vdc from being exceeded by transient disturbances of more than 40 2 The ambient temperature range of use shall be the most restrictive of the apparatus cable gland or blanking plug NOTE NE is valid with S001 Input Type ONLY N1 ATEX Typen Certification Number Baseefa09ATEX0095X ATEX Marking Il 3 G Ex nL IIC T5 40 to 65 Table B 10 Entity Parameters Power Bus Sensor U 42 4 U 12 5 Vde Ci 0 lo 4 8 mA Li 0 15 C 1 2 uF Lo 1H B 5 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 B 6 Special Conditions for Safe Use x 1 Provisions shall be made external to the apparatus to prevent the rated voltage of the apparatus supply is not exceeded by transient disturbances of more than 4096 The electrical circuit is connected directly to earth this must be taken into account when installing the apparatus NC ATEX Type n Component Certification Number Baseefa09ATEX0094U ATEX Marking Il 3 G Ex nA nL IIC T4 Tamb 50 to 85 C Ex nA nL IIC T5 Tamb 50 to 70 C Special Conditions for Safe Use x The component must be housed in a suitable certified enclosure that provides a degree of protection of at least IP54 and meets the relevant material and environmental requirements of EN 60079 0 and EN 60079 15 2 Provisions shall be made e
140. s when shipped from the factory FOUNDATION fieldbus uses addresses between 0 and 255 Addresses 0 through 15 are reserved for group addressing and for use by the data link layer If there are two or more devices on a segment with the same address the first device to start up will use the assigned address Each of the other devices will be given one of the four temporary addresses If a temporary address is not available the device will be unavailable until a temporary address is available Use the host system documentation to commission a device and assign a permanent address Information is transferred between devices over the FOUNDATION fieldbus using three different types of reporting Publisher Subscriber This type of reporting is used to transfer critical process loop data such as the process variable The data producers publishers post the data in a buffer that is transmitted to the subscriber when the publisher receives the Compel Data CD The buffer contains only one copy of the data New data completely overwrites previous data Updates to published data are transferred simultaneously to all subscribers in a single broadcast Transfers of this type can be scheduled on a precisely periodic basis Report Distribution This type of reporting is used to broadcast and multicast event and trend reports The destination address may be predefined so that all reports are sent to the same address or it may be provided separately
141. sets advisory PWA 2 Maint Sets sensor status to uncertain sets advisory PWA 3 Failure Sets sensor status to Bad sets advisory PWA RATE LIM HYST Rate of Change Increasing Hysteresis Limit 1 RATE LIM HYST 100 RATE INCREASING LIMIT Sensor Calibration in the Sensor Transducer Block If the FOUNDATION fieldbus configuration tool or host system does not support the use of DD methods for device configuration the following steps illustrate how to calibrate the sensor from the sensor transducer block NOTE Active calibrators should not be used in conduction with RTDs on any multiple input temperature transmitter such as the 848T 3 23 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 2011 3 24 Under SENSOR CALIB the SENSOR NUMBER to the number of the sensor to calibrate Set CALIB UNIT to calibration unit Set CALIB METHOD to User Trim seeTable 3 8 on page 3 16 for valid values Set the input value of the sensor simulator to be within the range defined by CALIB LO LIMIT and CALIB LIMIT Set CALIB POINT LO CALIB POINT to the value set at the sensor simulator Read CALIB STATUS and wait until it reads Command Done Repeat steps 3 to 5 if performing a two point trim Note that the difference in values between CALIB POINT LO and CALIB POINT must be greater than CALIB MIN SPAN Reference Manual 00809 0100 4697 Rev EA Oct
142. sor ius Seda dene wale nants hws 4 3 Communication Power Check 4 3 Resetting the Configuration RESTART 4 3 Troubleshooting ive Pee ae 4 4 Foundation fieldbus 4 4 Resource Blok ihe xp arate ha pede wate 4 4 Transducer Block 4 4 APPENDIX A Functional 1 Reference Data Physical Specifications A 3 Function Blocks rrt eR bee e bv A 4 Performance 5 4 Dimensional 8 Mounting Options s proc A 11 Ordering Information A 12 APPENDIX B Hazardous Locations Certificates B 1 Product Certificates North American 5 B 1 European 5 B 4 Intrinsically Safe and Non Incendive Installations B 11 Installation B 12 APPENDIX C Sea car ate Heat aia C 1 Foundation fieldbus Function Blocks hl 1 T
143. sure Figure 2 1 Mounting the 848T to a DIN Rail Mounting to a Panel with a Junction Box Figure 2 2 Mounting the 848T junction box to a panel 2 2 To mount the 848T to a DIN rail without an enclosure follow these steps 1 Pull up the DIN rail mounting clip located on the top back side of the transmitter Hinge the DIN rail into the slots on the bottom of the transmitter 3 Tilt the 848T and place onto the DIN rail Release the mounting clip The transmitter should be securely fastened to the DIN rail 848T without installed enclosure When inside of a plastic or aluminum junction box the 848T mounts to a panel using four 14 20 x 1 25 in screws When inside of a stainless steel junction box the 848T mounts to a panel using two 14 20 x 1 2 screws Aluminum Plastic Stainless Steel 848T with aluminum or plastic box Cover Screws 4 848T with a stainless steel box Mounting Screws 2 Mounting Screws 4 Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Mounting to a 2 in Pipe Stand Use the optional mounting bracket option code B6 to mount the 848T to a 2 in pipe stand when using a junction box Aluminum Plastic Junction Box Stainless Steel Junction Box styles JA and JP style JS Front View Side View Front View Side View I E 1 m 02 20 1 oh oF 6 6 1
144. t The measuring device may have several measurements or derived values available in eur different channels Use the channel numbers to define the variables that the OUT 2 MAI block processes MAI The MAI block supports signal scaling signal filtering signal status OUT calculation mode control and simulation In Automatic mode the block s OUT 5 output parameters OUT 1 to OUT 8 reflects the process variable PV OUT 6 values and status In Manual mode OUT may be set manually The Manual OUT 7 mode is reflected on the output status Table D 4 lists the MAI block OUT 8 parameters and their units of measure descriptions and index numbers The E block execution time is 30 ms Out1 The block output value and status for the first channel Table D 4 Multiple Analog Input Function Block Parameters Number Parameter Units Description 1 ST REV None The revision level of the static data associated with the input selector block The revision value will be incremented each time a static parameter value in the block is changed 2 TAG DESC None The user description of the intended application of the block 3 STRATEGY None The strategy field can be used to identify grouping of blocks This data is not checked or processed by the block 4 ALERT KEY None The identification number of the plant unit This information may be used in the host for sorting alarms etc 5 MODE BLK None The actual target permitted and normal mod
145. tatic hazards and light alloy or zirconium enclosures must be protected from impact and friction when installed 2 apparatus is not capable of withstanding the 500V isolation test required by IEC 60079 11 2006 clause 6 3 12 This must be taken into account when installing the apparatus B 7 Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 B 8 N7 IECEx Type n Approval Certificate No IECExBAS09 0032X Ex Na nL IIC T5 Tamp 40 to 65 C NOTE N7 is valid with S001 and S002 Input Types Table B 14 IECEx Approved Entity Parameters Power Bus Sensor U 42 4 Ug 5 Ci 0 l 2 5 mA 0 1000 uF Lo 1000 mH Special Conditions of Safe Use 1 The component must be housed in a suitable component certified enclosure that provides a degree of protection of at least IP54 and meets the relevant material and environmental requirements of IEC 60079 0 2004 amp IEC 60079 15 2005 2 Provision must be made external to the component to ensure the rated voltage of the component supply is not exceeded by transient disturbances of more than 40 3 electrical circuit is connected directly to earth this must be taken into account when installing the component NJ IECEx Type n COMPONENT Approval Certification Number IECExBAS09 0031U EEx nA nL IIC 4 Tamp 50 to 85 EEx nA nL IIC T5 Tamp 50 to 70 C
146. ted each time a static parameter value in the block is changed 02 TAG DESC None The user description of the intended application of the block 03 STRATEGY None The strategy field can be used to identify a grouping of blocks This data is not checked or processed by the block 04 ALERT KEY None The identification number of the plant unit This information may be used in the host for sorting alarms etc 05 MODE BLK None The actual target permitted and normal modes of the block Actual The mode the block is currently in Target The mode to go to Permitted Allowed modes that target may take on Normal Most common mode for target 06 BLOCK ERR None This parameter reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown 07 PV EU of XD SCALE The process variable used in block execution 08 OUT EU of OUT SCALE The block output value and status or XD SCALE if in direct L_ TYPE 09 SIMULATE None A group of data that contains the current transducer value and status the simulated transducer value and status and the enable disable bit ROSEMOUNT a on www rosemount com Process Management Hosemount 848T Reference Manual 00809 0100 4697 Rev EA October 201 1 Table D 1 Analog Input Function Block Parameters Numbe
147. the voltage across the transmitter power terminals does not go below 9 VDC The power terminals are polarity insensitive To power the transmitter 1 Connect the power leads to the terminals marked Bus as shown in Figure 2 7 2 Tighten the terminal screws to ensure adequate contact No additional power wiring is necessary ON OFF NOT USED SECURITY Fi SIMULATE ENABLE IN Je CL B S Ss 22 E eS eis Ground required with T1 option pDesoedg msseedimpsesooeq g J Connect Power Leads Here The transmitter will withstand electrical transients encountered through static discharges or induced switching transients However a transient protection option option code T1 is available to protect the 848T against high energy transients The device must be properly grounded using the ground terminal see Figure 2 7 2 7 Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 GROUNDING The 848T transmitter provides input output isolation up to 620 V rms NOTE Neither conductor of the fieldbus segment can be grounded Grounding out one of the signal wires will shut down the entire fieldbus segment Shielded Wire Each process installati
148. tion Notes Differential capability exists between any two sensor types For all differential configurations the input range is X to Y where X Sensor A minimum Sensor max Y Sensor A maximum Sensor B min Accuracy for Differential Configurations If sensor types are similar for example both RTDs or both thermocouples the accuracy 1 5 times worst case accuracy of either sensor type If sensor types are dissimilar for example RTD and one thermocouple the accuracy Sensor 1 Accuracy Sensor 2 Accuracy A 5 Reference Manual 00809 0100 4697 Rev EA Rosemount 848T October 2011 Analog Sensors 4 20mA Two types of 4 20 mA sensors are compatible with the Rosemount 848T These types must be ordered with the S002 option code complete with an analog connector kit The alarm levels accuracy for each type are listed in Table 2 Table 2 Analog Sensors Sensor Option Alarm Levels Accuracy 4 20mA Rosemount 3 9 to 20 8 mA 0 01mA Standard 4 20mA NAMUR 3 8 to 20 5 mA 0 01mA A 6 Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Ambient Temperature Effect Transmitter may be installed in locations where the ambient temperature is between 40 and 85 40 and 185 F Table 3 Ambient Temperature Effects NIST Type Accuracy per 1 0 1 8 F Change in Ambient
149. to Validation Configuration functions 56 VALIDATION SNSR6 VALUES Validation value parameters Please see tables below for a list of sub parameters that pertain to Validation values 57 VALIDATION SNSR7 CONFIG Validation configuration parameters Please see tables below for a list of sub parameters that pertain to Validation Configuration functions 58 VALIDATION SNSR7 VALUES Validation value parameters Please see tables below for a list of sub parameters that pertain to Validation values 59 VALIDATION SNSR8 CONFIG Validation configuration parameters Please see tables below for a list of sub parameters that pertain to Validation Configuration functions 60 VALIDATION SNSR8 VALUES Validation value parameters Please see tables below for a list of sub parameters that pertain to Validation values Changing the Sensor Configuration in the Transducer Block If the FOUNDATION fieldbus configuration tool or host system does not support the use of DD methods for device configuration the following steps illustrate how to change the sensor configuration in the transducer block 1 Set the MODE BLK TARGET to OOS or set the SENSOR MODE to configuration Set SENSOR n CONFIG SENSOR to the appropriate sensor type and then set SENSOR n CONFIG CONNECTION to the appropriate type and connection In the Transducer Block set MODE BLK TARGET to AUTO or set the SENSOR MODE to operation 3 19 Hosemount 848T Reference Manual 008
150. tus of up to eight inputs To specify which of the six available methods algorithms is used to select the output configure the selector type parameter SELECT TYPE as follows Max selects the maximum value of the inputs Min selects the minimum value of the inputs Avg calculates the average value of the inputs Mid calculates the update for eight sensors 1st Good selects the first available good input If the DISABLE is active the associated input is not used in the selection algorithm If an input is not connected it is also not used in the algorithm If the OP SELECT is set to a value between 1 and 8 the selection type logic is overridden and the output value and status is set to the value and status of the input selected by OP SELECT SELECTED will have the number of selected input unless the SELECT TYPE is mid in which case it will take the average of the two middle values Then SELECTED will be set to if there is an even number of inputs Status Handling In Auto mode OUT reflects the value and status quality of the selected input If the number of inputs with Good status is less than MIN GOOD the output status will be Bad In Man mode the OUT status high and low limits are set to indicate that the value is a constant and the OUT status is always Good In the STATUS OPTS parameter select from the following options to control the status handling Use Uncertain as Good Sets the OUT status
151. uired by Clause 6 4 12 on EN 60079 11 2007 This must be taken into account when installing the apparatus FISCO Fieldbus Intrinsically Safe Concept Intrinsic Safety Certificate Number BASEEFAO9ATEX0093X ATEX Marking 11 G Ex ia T4 Tamb 50 to 60 ce 1180 Table B 8 ATEX Approved Entity Parameters Power Bus Sensor U 17 5 V Ug 12 5 V lj 380 mA lo 4 8 mA Pi 5 32 W 15 mW 0 1 2 uF L 0 Li 1H Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Special Conditions for Safe Use x 1 This apparatus must be installed in an enclosure which affords it a degree of protection of at least IP20 Non metallic enclosures must have a surface resistance of less than 1Gohm Light alloy or zirconium enclosures must be protected from impact and friction when installed 2 apparatus will not meet the 500V rms isolation test required by Clause 6 4 12 on EN 60079 11 2007 This must be taken into account when installing the apparatus NE ATEX TYPE n APPROVAL Certification Number BASEFFAO9ATEX0095X ATEX Marking Il 3 G Ex nA nL IIC T5 Tamp 40 to 65 C Table B 9 Baseefa Approved Entity Parameters Power Bus Sensor U 42 4 5 Ci 0 l 2 5 mA L 0 1000 uF Lo 1000 mH Special Conditions for Safe Use x 1 Provisions shall be made external to the apparatu
152. urce block to AUTO For modifying alarms on individual function blocks Al or ISEL blocks refer to Appendix D Function Blocks Use the following steps to configure the damping which is located in the Transducer Function Block 1 Set Sensor Mode to Out of Service 2 Change DAMPING to the desired filter rate 0 0 to 32 0 seconds 3 Set Sensor Mode to In Service Use the following steps to configure the Differential Sensors 1 Set Dual Sensor Mode to Out of Service 2 Set Input A and Input B to the sensor values that to be used in the differential equation diff NOTE Unit types must be the same 3 Setthe DUAL SENSOR CALC to either Not Used Absolute or INPUT A minus INPUT B 4 Set Dual Sensor Mode to In Service Use the following steps to configure Measurement Validation 1 Set mode to Disabled for specific sensor 2 Select sample rate 1 10 sec sample is available 1 second sample is preferred for sensor degradation The higher the number of seconds between samples the more emphasis put on process variation 3 Select Deviation Limit from 0 to 10 units If deviation limit is exceeded a status event will be triggered 4 Select Increasing Limit Sets the limit for increasing rate of change If limit is exceeded a status event will be triggered 5 Select Decreasing Limit Sets the limit for decreasing rate of change If limit is exceeded a status event will be triggered NOTE The decr
153. ure is to prevent devices that went through simulation in the staging process from being installed with simulation enabled With simulation enabled the actual measurement value has no impact on the OUT value or the status The OUT values will all have the same value as determined by the simulate value Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Figure D 3 Multiple Analog Input Function Block Timing Diagram Figure D 4 Multiple Analog Input Function Block Schematic OUT mode in man OUT mode in auto 63 of Change FIELD VAL Time seconds PV FTIME XD SCALE OUT SCALE our Ch1 OUT 2 Ch 2 Mode Logic OUT 3 Ch 3 Ch4 OUT 4 Ch 5 OUT 5 Ch 6__ Ch 7 4 OUT 6 Ch 8 OUT 7 OUT 8 Filtering The filtering feature changes the response time of the device to smooth variations in output readings caused by rapid changes in input Adjust the filter time constant in seconds using the PV FTIME parameter same value applied to eight channels Set the filter time constant to zero to disable the filter feature Signal Conversion Set the signal conversion type with the Linearization Type L TYPE parameter Choose from direct indirect or indirect square root signal conversion with the L TYPE parameter Direct Direct signal conversion allows the signal to pass through the accessed channel input value or the simulated value when s
154. xternal to the apparatus to prevent the rated voltage 42 2 V dc being exceeded by transient disturbances of more than 4096 IECEx Certifications I7 Intrinsic Safety Certificate No IECExBAS09 0030X Ex ia IIC T4 Tamb 50 to 60 Table B 12 IECEx Approved Entity Parameters Power Bus Sensor U 30 V Us 12 5 V lj 300 mA lo 4 8 mA P 1 3W 15 mW Cj 2 1 pF C 1 2 pF Li 0 Li 1H Special Conditions of Safe Use x 1 The apparatus must be installed in an enclosure that provides a degree of protection of at least IP20 Non metallic enclosures must be suitable to prevent electrostatic hazards and light alloy or zirconium enclosures must be protected from impact and friction when installed The apparatus is not capable of withstanding the 500V isolation test required by IEC 60079 11 2006 clause 6 3 12 This must be taken into account when installing the apparatus IECEx FISCO Certificate No IECExBAS09 0030X Ex ia T4 Tag 50 to 60 C Table 13 IECEx Approved Entity Parameters Power Bus Sensor U 217 5 12 5 lj 380 mA lo 4 8 mA P 5 32 W Po 15 mW Cj 2 2 1 uF Ci 1 2 Li 0 Li 1H Special Conditions of Safe Use x 1 The apparatus must be installed in an enclosure that provides a degree of protection of at least IP20 Non metallic enclosures must be suitable to prevent electros
155. xternal to the apparatus to prevent the rated voltage 42 4 VDC being exceeded by transient disturbances of more than 4096 3 electrical circuit is connected directly to earth this must be taken into account when installing the apparatus NOTE NC is valid with S001 Input Type ONLY ND ATEX Dust Ignition Proof Certification Number BASO1 ATEX1315X ATEX Marking amp II 1 D T90C Tamb 40 to 65 C IP66 Special Conditions for Safe Use X 1 The user must ensure that the maximum rated voltage and current 42 4 volts 22 mA DC are not exceeded All connections to other apparatus or associated apparatus shall have control over this voltage and current equivalent to a category ib circuit according to EN50020 Component approved EEx e cable entries must be used which maintain the ingress protection of the enclosure to at least IP66 Any unused cable entry holes must be filled with component approved EEx e blanking plugs The ambient temperature range of use shall be the most restrictive of the apparatus cable gland or blanking plug Table B 11 Baseefa Approved Entity Parameters Power Bus Sensor U 42 4 V 5V dc Ci 0 l 2 5 mA L 0 1000 uF Lo 1H Reference Manual 00809 0100 4697 Rev EA October 201 1 Hosemount 848T Special Conditions of Safe Use x 1 The component must be housed in a suitable certified enclosure 2 Provisions shall be made e
156. y of the HI HI alarm 26 HI HI EU of PV SCALE The setting for the alarm limit used to detect the HI HI alarm condition 27 PRI None The priority of the alarm 28 HI LIM EU of PV SCALE The setting for the alarm limit used to detect the HI alarm condition 29 LO PRI None The priority of the LO alarm 30 LO LIM EU of PV SCALE The setting for the alarm limit used to detect the LO alarm condition 31 LO LO PRI None The priority of the LO LO alarm 32 LO LO LIM EU of PV SCALE The setting for the alarm limit used to detect the LO LO alarm condition 33 HI HI ALM None The HI HI alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm 34 HI None The HI alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm 35 LO ALM None The LO alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm D 2 Reference Manual 00809 0100 4697 Rev EA October 2011 Rosemount 848T Table D 1 Analog Input Function Block Parameters Number Parameter Units Description 36 LO LO ALM None The LO LO alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm 37 OUT D None Discrete output to indicate a selected alarm condition 38 ALM SEL None Used to select the process alarm conditions that will cause the OUT D

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