Emerson Rosemount 2051 Reference Manual
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Emerson Rosemount 2051 Reference Manual

Emerson Rosemount 2051 Reference Manual

Pressure transmitter with profibus pa protocol
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Reference Manual
00809-0300-4101, Rev BC
May 2024
Rosemount
™
2051 Pressure Transmitter
with PROFIBUS
PA Protocol
®

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Summary of Contents for Emerson Rosemount 2051

  • Page 1 Reference Manual 00809-0300-4101, Rev BC May 2024 Rosemount ™ 2051 Pressure Transmitter with PROFIBUS PA Protocol ®...
  • Page 2  WARNING Replacement equipment or spare parts not approved by Emerson for use as spare parts could reduce the pressure retaining capabilities of the transmitter and may render the instrument dangerous. Use only bolts supplied or sold by Emerson as spare parts.
  • Page 3 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 your local Emerson Sales Representative.

  • Page 5: Table Of Contents

    Reference Manual Contents 00809-0300-4101 May 2024 Contents Chapter 1  Introduction..........................7 1.1 Overview............................7 1.2 Models covered..........................7 1.3 Device revisions........................... 8 1.4 Transmitter overview........................8 1.5 Product recycling/disposal......................8 Chapter 2  Configuration..........................9 2.1 Hazardous locations certifications.................... 9 2.2 Configuration guidelines......................9 2.3 Basic setup tasks........................10 2.4 Detailed setup tasks........................12 Chapter 3 ...
  • Page 6 Contents Reference Manual May 2024 00809-0300-4101 7.2 Product certifications........................75 Appendix A  Local operator interface (LOI) menu..................77 A.1 LOI Menu............................77 ® Appendix B  PROFIBUS PA Block Information..................79 ® B.1 PROFIBUS block parameters....................79 B.2 Condensed status........................84 Emerson.com/Rosemount...

  • Page 7: Chapter 1 Introduction

    May 2024 1  Introduction 1.1  Overview Figure 1-1: Commissioning and Installation Flowchart 1.2  Models covered The following Rosemount 2051 Transmitters are covered by this manual: • Rosemount 2051C Coplanar Pressure Transmitter ™ • Rosemount 2051T In-Line Pressure Transmitter — Measures gauge/absolute pressure up to 10,000 psi (689.5 bar).

  • Page 8: Device Revisions

    Emerson capacitance sensor technology for DP and GP measurements. Piezoresistive sensor technology is utilized in the Rosemount 2051T. The major components of the Rosemount 2051 are the sensor module and the electronics housing. The sensor module contains the oil filled sensor system (isolating diaphragms, oil fill system, and sensor) and the sensor electronics.

  • Page 9: Chapter 2 Configuration

    OOS and back into Auto might be done automatically using the Class 2 Master when using the Rosemount 2051 DD or DTM, if no additional action is required when configuring the device. Verify the block mode is set back to Auto.

  • Page 10: Basic Setup Tasks

    2.3.1  Assign address The Rosemount 2051 is shipped with a temporary address of 126. This must be changed to a unique value between 0 and 125 in order to establish communication with the Class 1 Master. Usually, addresses 0–2 are reserved for masters, therefore transmitter addresses between 3 and 125 are recommended for the device.
  • Page 11 Reference Manual Configuration 00809-0300-4101 May 2024 Table 2-1: LOI Operation Button Action Navigation Character entry Save? Scroll Moves down menu Changes character Changes between categories value Save and Cancel   Enter Select menu category Enters character and Saves advances Characters flash when they can be changed. Figure 2-1: LOI Menu A.

  • Page 12: Detailed Setup Tasks

    From the Basic Setup > Units > Output Signal (Analog Input Block) > Linearization Type dropdown, select No Linearization. 2.4  Detailed setup tasks The following tasks explain how to configure the Rosemount 2051 for Flow or Level measurement and how to configure additional parameters found in the device. 2.4.1  Flow configuration To configure the Rosemount 2051 for flow measurement with the LOI, select UNITS >...
  • Page 13 2.4.2  Square Root of DP Configuration The Rosemount 2051 has two Pressure output settings: Linear and Square Root. Activate the Square Root output option to make output proportional to flow. To configure the transmitter to output square root of differential pressure, a Class 2 Master must be used.
  • Page 14 From the Basic Setup > Units > Output Signal (Analog Input Block) > Linearization Type dropdown, select Square Root. 2.4.3  Level configuration To configure the Rosemount 2051 for Level measurement with the LOI, select UNITS > LEVEL. When configuring level units, the following parameters are set: • Measurement type: Level •...
  • Page 15 Reference Manual Configuration 00809-0300-4101 May 2024 During unit configuration, the user defines scaling and units per the application requirements. See Local operator interface (LOI) menu for detailed menu for further scaling help. Level configuration using Class 2 Master To configure the transmitter for a level application, use the level output in the Transducer Block.
  • Page 16 00809-0300-4101 2.4.4  Damping User-selected damping will affect the transmitters ability to respond to changes in the applied process. The Rosemount 2051 has a default damping value of 0.0 seconds applied in the AI Block. Damping can be set using: •...
  • Page 17 2.4.7  Security The Rosemount 2051 has a hierarchy of security features. The security jumper on the electronics board (or optional LCD display) provides the highest level of security. With the jumper in the ON position, all writes to the transmitter will be disabled (including writes from the LOI or a Class 2 Master).
  • Page 18 Select Enabled. b) Enter Simulation Value. c) Select Simulation Status. d) Select Transfer. 3. To disable simulation, select the following in Basic Setup > Simulation: a) Select Disabled. b) Select Transfer. 4. Set the simulation jumper to Off. Emerson.com/Rosemount...

  • Page 19: Chapter 3 Hardware Installation

    Hardware installation 3.1  Overview The information in this section covers installation considerations for the Rosemount 2051 with protocols. A Quick Start Guide (document number 00825-0200-4101) is shipped with every transmitter to describe recommended pipe-fitting and wiring procedures for initial installation. For dimensional drawing information, refer to the Dimensional Drawings...

  • Page 20: Installation Procedures

    Installation procedures 3.3.1  Mounting the transmitter For dimensional drawing information refer to the Dimensional Drawings section of the Rosemount 2051 Product Data Sheet. Process flange orientation Mount the process flanges with sufficient clearance for process connections. For safety reasons, place the drain/vent valves so the process fluid is directed away from possible human contact when the vents are used.
  • Page 21 Reference Manual Hardware installation 00809-0300-4101 May 2024 Terminal side of electronics housing Mount the transmitter so the terminal side is accessible. Clearance of 0.75-in. (19 mm) is required for cover removal. Use a conduit plug on the unused side of the conduit opening. Circuit side of electronics housing Provide 0.75-in.
  • Page 22 D. ¼ x 1 ¼ Bolts for transmitter mounting (not supplied) E. ¼ x 1 ¼ Bolts for transmitt mounting (not supplied) F. 5/16 x 1 ½ Bolts for panel mounting (not supplied) Note Dimensions are in inches (millimeters). Emerson.com/Rosemount...
  • Page 23 Reference Manual Hardware installation 00809-0300-4101 May 2024 Figure 3-3: Mounting Bracket Option Code B4 A. Pipe mounting B. Panel mounting C. 2-in. U-Bolt for pipe mounting (clamp shown) D. ¼ x 1 ¼ Bolts for transmitter mounting (not supplied) E. ¼ x 1 ¼ Bolts for transmitt mounting (not supplied) F.
  • Page 24 B. Stainless Steel (SST) Head Markings C. Alloy K-500 Head Markings Flange bolts The 2051 is shipped with a coplanar flange installed with four 1.75-in. (44 mm) flange bolts. Figure 3-6 Figure 3-8. Stainless steel bolts are coated with a lubricant to ease Emerson.com/Rosemount...
  • Page 25 Bolts are identified by their head markings: Bolt installation Only use bolts supplied with the 2051 or provided by Emerson as spare parts. When installing the transmitter to one of the optional mounting brackets, torque the bolts to 125 in-lb.
  • Page 26 Hardware installation Reference Manual May 2024 00809-0300-4101 Figure 3-6: Traditional Flange Bolt Configurations - Differential transmitter A. Drain/vent Figure 3-7: Traditional Flange Bolt Configurations - Gauge transmitter A. Drain/vent B. Plug Note Dimensions are in inches (millimeters). Emerson.com/Rosemount...
  • Page 27 Reference Manual Hardware installation 00809-0300-4101 May 2024 Figure 3-8: Mounting Bolts and Bolt Configurations for Coplanar Flange A. Transmitter with Flange Bolts B. Transmitter with Flange Adapters a Flange/Adapter Bolts Note Dimensions are in inches (millimeters). Table 3-3: Description Size in inches (mm) Flange bolts 1.75 (44) Flange/adapter bolts...
  • Page 28 NOTICE For steam or other elevated temperature services, it is important that temperatures at the process connection do not exceed the transmitter’s process temperature limits. See Temperature Limits in the 2051 Pressure Transmitter Product Data Sheet for details. Emerson.com/Rosemount...
  • Page 29 Reference Manual Hardware installation 00809-0300-4101 May 2024 Figure 3-9: Liquid applications installation example Figure 3-10: Gas applications installation example Figure 3-11: Steam applications installation example 2051 Pressure Transmitter...
  • Page 30  WARNING Process leaks Process leaks could result in death or serious injury. Install and tighten all four flange bolts before applying pressure. Do not attempt to loosen or remove flange bolts while the transmitter is in service. Emerson.com/Rosemount...
  • Page 31 Reference Manual Hardware installation 00809-0300-4101 May 2024 Use plant-approved lubricant or sealant when making the process connections. This distance may be varied ±⅛ in. (3.2 mm) by rotating one or both of the flange adapters. To install adapters to a coplanar flange: Procedure 1.

  • Page 32: Rosemount 304, 305, And 306 Manifolds

    The 305 Integral Manifold is available in two designs: Traditional and Coplanar. You can mount the traditional 305 Integral Manifold to most primary elements with mounting adapters in the market today. The 306 Integral Manifold is used with the 2051T Emerson.com/Rosemount...
  • Page 33 Reference Manual Hardware installation 00809-0300-4101 May 2024 In-Line Transmitters to provide block-and-bleed valve capabilities of up to 10,000 psi (690 bar). Figure 3-15: Manifolds A. 2051C and 304 Conventional B. 2051C and 305 Integral Coplanar C. 2051C and 305 Integral Traditional D. 2051T and 306 In-Line 3.4.1 ...
  • Page 34 In normal operation, the two isolate (block) valves between the process ports and the transmitter will be open, and the equalize valve will be closed. A. High B. Low C. Drain/vent valve D. Isolate (open) E. Equalize (closed) F. Process Emerson.com/Rosemount...
  • Page 35 Reference Manual Hardware installation 00809-0300-4101 May 2024 Procedure 1. To zero trim the transmitter, close the isolate valve on the low side (downstream) side of the transmitter. A. High B. Low C. Drain/vent valve D. Isolate (open) E. Equalize (closed) F. Process G.
  • Page 36 Perform zero trim at static line pressure. In normal operation, the two isolate (block) valves between the process ports and the transmitter will be open, and the equalize valves will be closed. Vent valves may be open or closed. Emerson.com/Rosemount...
  • Page 37 Reference Manual Hardware installation 00809-0300-4101 May 2024 A. High B. Low C. Plugged D. Isolate (open) E. Process F. Equalize (closed) G. Drain vent (closed) Procedure 1. To zero trim the transmitter, first close the isolate valve on the low pressure (downstream) side of the transmitter and the vent valve.
  • Page 38 3. Open the equalize valve on the low pressure (downstream) side of the transmitter. The manifold is now in the proper configuration for zeroing the transmitter. A. High B. Low C. Plugged D. Isolate (open) E. Process F. Equalize (open) G. Drain vent (closed) H. Isolate (closed) Emerson.com/Rosemount...
  • Page 39 Reference Manual Hardware installation 00809-0300-4101 May 2024 4. After zeroing the transmitter, close the equalize valve on the low pressure (downstream) side of the transmitter. A. High B. Low C. Plugged D. Isolate (open) E. Process F. Equalize (open) G. Equalize (closed) H.

  • Page 40: Liquid Level Measurement

    Low-side transmitter piping will remain empty if gas above the liquid does not condense. This is a dry leg condition. Range determination calculations are the same as those described for bottom-mounted transmitters in open vessels, as shown in Figure 3-16. Emerson.com/Rosemount...
  • Page 41 Reference Manual Hardware installation 00809-0300-4101 May 2024 Figure 3-16: Liquid Level Measurement Example A. H B. Zero C. Suppression D. Range E. L F. inH Let X equal the vertical distance between the minimum and maximum measurable levels (500 in. [12700 mm]). Let Y equal the vertical distance between the transmitter datum line and the minimum measurable level (100 in.
  • Page 42 = 50 in H s = (z)(SG2) = 600 x 1.1 = 660 in H Range = e – s to h + e – s. = 50 – 660 to 500 + 50 – 660 = –610 to –110 in H Emerson.com/Rosemount...
  • Page 43 Reference Manual Hardware installation 00809-0300-4101 May 2024 A. Zero elevation B. inH C. mA DC Bubbler system in open vessel A bubbler system that has a top-mounted pressure transmitter can be used in open vessels. This system consists of an air supply, pressure regulator, constant flow meter, pressure transmitter, and a tube that extends down into the vessel.
  • Page 44 Hardware installation Reference Manual May 2024 00809-0300-4101 = 100 x 1.1 = 110 inH Range = 0 to 110 inH A. mA DC B. inH Emerson.com/Rosemount...

  • Page 45: Chapter 4 Electrical Installation

    4  Electrical installation 4.1  Overview The information in this section covers installation considerations for the Rosemount 2051. A Quick Start Guide is shipped with every transmitter to describe pipe-fitting, wiring procedures and basic configuration for initial installation. Note For transmitter disassembly and reassembly refer to sections...

  • Page 46: Lcd Display With Local Operator Interface (Loi)

    LOI operation. Upgrading to an LOI transmitter requires installation of a new electronics board, configuration buttons and LCD display (if not previously ordered). 4.4  Configuring security and simulation The Rosemount 2051 has four security methods: • Security switch • HART lock •...
  • Page 47 Reference Manual Electrical installation 00809-0300-4101 May 2024 Procedure 1. Set loop to Manual and remove power. 2. Remove transmitter housing cover. 3. Use a small screwdriver to slide the switch to the locked ( ) position. 4. Replace transmitter housing cover.  WARNING Cover must be fully engaged to comply with explosion-proof requirements.

  • Page 48: Electrical Considerations

    To avoid moisture accumulation in the housing, install wiring with a drip loop, and ensure the bottom of the drip loop is mounted lower than the conduit connections of the transmitter housing. Figure 4-3 shows recommended conduit connections. Figure 4-3: Conduit installation diagrams A. Possible conduit line positions B. Sealing compound Emerson.com/Rosemount...
  • Page 49 Use shielded twisted pairs to yield best results. To ensure proper communication, use 24 AWG or larger wire and do not exceed 5000 ft. (1500 m). For 1–5 V 500 ft. (150 m) maximum, Emerson recommends unpaired three conductors or two twisted pairs. 2051 Pressure Transmitter...
  • Page 50 To connect wiring: Procedure 1. Remove the housing cover on terminal compartment side. Signal wiring supplies all power to the transmitter.  WARNING Do not remove the cover in explosive atmospheres when the circuit is live. 2. Connect the leads. Emerson.com/Rosemount...
  • Page 51 Reference Manual Electrical installation 00809-0300-4101 May 2024 NOTICE Power could damage the test diode. Do not connect the powered signal wiring to the test terminals. • For 4–20 mA HART output, connect the positive lead to the terminal marked (pwr/comm+) and the negative lead to the terminal marked (pwr/comm–). •...
  • Page 52 Internal ground connection: The internal ground connection screw is inside the FIELD TERMINALS side of the electronics housing. This screw is identified by a ground symbol ). The ground connection screw is standard on all Rosemount 2051 Transmitters. Refer to Figure 4-8.
  • Page 53 Reference Manual Electrical installation 00809-0300-4101 May 2024 Figure 4-8: Internal Ground Connection A. Internal ground location 2051 Pressure Transmitter...
  • Page 54 The transient protection terminal block can be ordered as an installed option (Option Code T1) or as a spare part to retrofit existing 2051 Transmitters in the field. See for part numbers. The lightning bolt symbol shown in Figure 4-10 identifies the transient protection terminal block. Emerson.com/Rosemount...
  • Page 55 Reference Manual Electrical installation 00809-0300-4101 May 2024 Figure 4-10: Transient Protection Terminal Block A. External ground connection location B. Lightning bolt location Note The transient protection terminal block does not provide transient protection unless the transmitter case is properly grounded. Use the guidelines to ground the transmitter case. Refer to Figure 4-10.
  • Page 56 Electrical installation Reference Manual May 2024 00809-0300-4101 Emerson.com/Rosemount...

  • Page 57: Chapter 5 Calibration

    – in order to optimize performance over a specific pressure range. Note The Rosemount 2051 has been carefully calibrated at the factory. Trimming adjusts the position of the factory characterization curve. It is possible to degrade performance of the transmitter if any trim is done improperly or with inaccurate equipment.

  • Page 58: Determine Calibration Frequency

    = 0.1% reading per 1000 psi (69 bar) = ±0.05% of span at maximum span 4. Calculate the stability per month. Stability = % of span for 3 years = ±0.0046% span per month 5. Calculate calibration frequency. Zero static pressure effect removed by zero trimming at line pressure. Emerson.com/Rosemount...

  • Page 59: Zero Trim

    Reference Manual Calibration 00809-0300-4101 May 2024 5.4  Zero trim Note The transmitter PV at zero pressure must be within 10% × Upper Sensor Limit (USL) of zero in order to calibrate using the zero trim function. 5.4.1  Procedure Enter Calibration > Zero. a) Verify measurement is within 10% ×...

  • Page 60: Recall Factory Trim

    4. To set Transducer Block to Auto, select the following: a) From the Basic Setup > Mode > Transducer Block > Target Mode dropdown, select Auto. b) Select Transfer. 5.6  Recall factory trim 5.6.1  Procedure 1. Enter Calibration > Reset. 2. Save. Emerson.com/Rosemount...

  • Page 61: Compensating For Line Pressure

    3) do not require this procedure because optimization occurs in the sensor. Applying high static pressure to Rosemount 2051 Range 4 and 5 Pressure Transmitters causes a systematic shift in the output. This shift is linear with static pressure; correct it by...
  • Page 62 Correctable to ±0.2% of reading per 1000 psi (69 bar) for line pressures from 0 to 3626 psi (0 to 250 bar) The systematic span shift caused by the application of static line pressure is –1.00% of reading per 1000 psi (69 bar) for Range 4 transmitters, and –1.25% of reading per 1000 psi (69 bar) for Range 5 transmitters. Emerson.com/Rosemount...

  • Page 63: Chapter 6 Troubleshooting

    Reference Manual Troubleshooting 00809-0300-4101 May 2024 6  Troubleshooting 6.1  Overview This section contains information on how to troubleshoot the Rosemount 2051 Pressure Transmitter with PROFIBUS PA Protocol. ® 6.2  Diagnostics identification and recommended action The Rosemount 2051 PROFIBUS device diagnostics can be used to warn a user about a ®...
  • Page 64 Sensor Module Memory Failure How to identify Class 1 or 2 Sensor Transducer Block Error Master Physical block diagnostic extension Bad, Out of Service (OOS) Class 2 Master Primary value status Temperature status Recommended actions Replace the sensor module. Emerson.com/Rosemount...
  • Page 65 Reference Manual Troubleshooting 00809-0300-4101 May 2024 6.2.5  No Sensor Module Pressure Updates How to identify Class 1 or 2 Sensor Transducer Block Error Master Physical block diagnostic extension Bad, sensor failure, constant Class 2 Master Primary value status Temperature status Recommended actions 1.
  • Page 66 Figure 6-1: Extended Diagnostics Identification Standard Diagnostic Response Extended Diagnostic Data 6 Bytes Device Related Header byte Status, Slot Number, Diagnosis Extended Diagnosis Status Specifier (Vendor Specific) 0 0 x x x x x x 3 Bytes 4 Bytes 3 Bytes Emerson.com/Rosemount...
  • Page 67 Reference Manual Troubleshooting 00809-0300-4101 May 2024 Figure 6-2: Diagnoses and Extended Diagnoses Bit Identification   Diagnosis   Byte 1 Byte 2 Unit_Diag_Bit   Byte 3 Byte 4       Extended Diagnosis   Byte 1 Byte 2 Unit_Diag_Bit   Byte 3  ...

  • Page 68: Plantweb ™ And Ne107 Diagnostics

    Output status (based on fail safe type) display Name Use fail safe Use last good value Use wrong calculated status value value PV Simulation Depends on Depends on Depends on simulated Enabled simulated value/ simulated value/ value/status status status Emerson.com/Rosemount...

  • Page 69: Disassembly Procedures

    Reference Manual Troubleshooting 00809-0300-4101 May 2024 (continued) Table 6-4: Alert Messages Diagnostic Output status (based on fail safe type) display Name Use fail safe Use last good value Use wrong calculated status value value LOI button Good, function Good, function Good, function check pressed check check...
  • Page 70 Installation procedures coplanar flange. b) The Rosemount 2051 Transmitter is attached to the process by a single hex nut process connection. Loosen the hex nut to separate the transmitter from the process. Do not wrench on neck of transmitter. See warning in...

  • Page 71: Reassembly Procedures

    Reference Manual Troubleshooting 00809-0300-4101 May 2024 display. The two screws anchor the LCD display to the electronics board and the electronics board to the housing. NOTICE The electronics board is electrostatically sensitive; observe handling precautions for static-sensitive components 3. Using the two captive screws, slowly pull the electronics board out of the housing. The sensor module ribbon cable holds the electronics board to the housing.
  • Page 72 Do not force. The electronics board will slide gently onto the connections. 3. Tighten the captive mounting screws. 4. Replace the housing cover. Emerson recommends tightening the cover until there is no gap between the cover and the housing. 6.6.2 ...
  • Page 73 Reference Manual Troubleshooting 00809-0300-4101 May 2024 Note Undamaged O-rings may be reused. Replace O-rings that show any signs of damage, such as nicks, cuts, or general wear. If you are replacing the O-rings, be careful not to scratch the O-ring grooves or the surface of the isolating diaphragm when removing the damaged O-rings.
  • Page 74 2. Tighten the drain/vent valve to 250 in-lb. (28.25 N-m).  CAUTION Take care to place the opening on the valve so that process fluid will drain toward the ground and away from human contact when the valve is opened. Emerson.com/Rosemount...

  • Page 75: Chapter 7 Reference Data

    Reference data 00809-0300-4101 May 2024 7  Reference data 7.1  Ordering information, specifications, and drawings To view current Rosemount 2051 Pressure Transmitter ordering information, specifications, and drawings: Procedure 1. Go to the Rosemount 2051 Coplanar Pressure Transmitter Product Detail Page. ™ 2. Scroll as needed to the green menu bar and click Documents & Drawings.
  • Page 76 Reference data Reference Manual May 2024 00809-0300-4101 Emerson.com/Rosemount...

  • Page 77: Appendix A Local Operator Interface (Loi) Menu

    Reference Manual Local operator interface (LOI) menu 00809-0300-4101 May 2024 A  Local operator interface (LOI) menu A.1  LOI Menu Figure A-1: Detailed LOI Menu Either button Password protection is default out of the factory as off. The customer will need a configuration tool to set it. PASSWORD CODE FALSE...
  • Page 78 Go To Save/Cancl UNITS see page 2 UNITS UNITS see page 2 see page 2 see page 2 Go To Save/Cancl UNITS UNITS see page 2 see page 2 Go To Save/Cancl UNITS see page 2 CURRENT VALUE see page 2 Emerson.com/Rosemount...

  • Page 79: Profibus ® Pa Block Information

    Reference Manual PROFIBUS PA Block Information ® 00809-0300-4101 May 2024 B  PROFIBUS PA Block Information ® B.1  PROFIBUS block parameters ® Table B-1 through Table B-3 can be used to cross reference parameters from the PROFIBUS specification, Class 2 Master, and Local Operator Interface (LOI). ®...
  • Page 80 Table B-2: Transducer Block Parameters Index Parameter name DTM name Definition location ST_REV Static Revision The revision level of the static data associated with block; the revision value will be incremented each time a static parameter value in the block is changed. Emerson.com/Rosemount...
  • Page 81 Reference Manual PROFIBUS PA Block Information ® 00809-0300-4101 May 2024 (continued) Table B-2: Transducer Block Parameters Index Parameter name DTM name Definition location TAG_DESC The user description of the intended block application. STRATEGY Strategy Grouping of function blocks. ALERT_KEY Alert Key The identification number of the plant unit.
  • Page 82 The revision level of the static data associated with block; the revision value will be incremented each time a static parameter value in the block is changed. TAG_DESC The user description of the intended block application. STRATEGY Strategy Grouping of function blocks. Emerson.com/Rosemount...
  • Page 83 Reference Manual PROFIBUS PA Block Information ® 00809-0300-4101 May 2024 (continued) Table B-3: Analog Input Block Parameters Index Parameter name DTM name Definition location ALERT_KEY Alert Key The identification number of the plant unit. This information may be used in the host for sorting alarms, etc.

  • Page 84: Condensed Status

    If blank, parameter is not applicable to LOI. B.2  Condensed status The Rosemount 2051 device utilizes condensed status as recommended by the Profile 3.02 specification and NE 107. Condensed status has some additional bits and changed bit assignments from classic status. Confirm bit assignment using...
  • Page 85 Reference Manual 00809-0300-4101 May 2024 2051 Pressure Transmitter...
  • Page 86 Emerson Terms and Conditions of Sale are available upon request. The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a mark of one of the Emerson family of companies. All other marks are the property of their respective owners.

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