Emerson Rosemount 644 FOUNDATION Reference Manual
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Emerson Rosemount 644 FOUNDATION Reference Manual

Emerson Rosemount 644 FOUNDATION Reference Manual

Temperature transmitter with fieldbus protocol
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Reference Manual
00809-0400-4728, Rev CA
September 2018
™
Rosemount
644 Temperature Transmitter
™
with F
Fieldbus Protocol
OUNDATION

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Summary of Contents for Emerson Rosemount 644 FOUNDATION

  • Page 1 Reference Manual 00809-0400-4728, Rev CA September 2018 ™ Rosemount 644 Temperature Transmitter ™ with F Fieldbus Protocol OUNDATION...

  • Page 3: Table Of Contents

    Reference Manual Contents 00809-0400-4728, Rev CA September 2018 Contents 1Section 1: Introduction Using this manual ..............1 Transmitter .
  • Page 4 Contents Reference Manual 00809-0400-4728, Rev CA September 2018 3Section 3: Installation Overview ............... . 29 Safety messages.
  • Page 5 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. Title Page...
  • Page 6 Reference Manual Title Page 00809-0100-4728, Rev CA September 2018 Title Page...

  • Page 7: Using This Manual

    A compact size and two housing options allowing mounting flexibility for the control room or the field  Refer to the following literature for a full range of compatible connection heads, sensors, and thermowells provided by Emerson. Temperature Sensors and Assemblies Product Data Sheet, Volume 1 ...

  • Page 8: Mechanical

    Introduction Reference Manual 00809-0400-4728, Rev CA September 2018 1.2.3 Mechanical Location When choosing an installation location and position, take into account the need for access to the transmitter. Special mounting Special mounting hardware is available for mounting a Rosemount 644 head mount transmitter to a DIN rail or assembling a new Rosemount 644 head mount to an existing threaded sensor connection head (former option code L1).

  • Page 9: Return Of Materials

    Return of materials To expedite the return process in North America, call the Emerson National Response Center toll-free at 800-654-7768. This center, available 24 hours a day, will assist you with any needed information or materials.
  • Page 10 Introduction Reference Manual 00809-0400-4728, Rev CA September 2018 Introduction...

  • Page 11: Overview

    Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 Section 2 Configuration Overview ................page 5 Safety messages .

  • Page 12: General Block Information

    Device description Before configuring the device, ensure the host has the appropriate Device Description file revision for this device. The device descriptor can be found on Emerson.com/Rosemount. The initial release of the Rosemount 644 with F Fieldbus is device revision 1.

  • Page 13: Link Active Scheduler (Las)

    Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 Note When an upstream block is set to OOS, this will impact the output status of all downstream blocks. The figure below depicts the hierarchy of blocks: Other Analog input Transducer Resource block function (AI block) block...

  • Page 14: Capabilities

    Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 2.3.6 Capabilities Virtual Communication Relationship (VCR) There are a total of 12 VCR’s. One is permanent and 11 are fully configurable by the host system. 16 link objects are available. Network parameter Value Slot Time Maximum Response Delay...

  • Page 15: Resource Block

    Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 LCD transducer block (index number 1200) The LCD Transducer Block is used to configure the LCD display meter. Analog input block (index number 1300 and 1400) The Analog input function block processes the measurements from the sensor and makes them available to other function blocks.
  • Page 16 Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 The DEFINE_WRITE_LOCK parameter allows the user to configure whether the write lock function will control writing to all blocks, or only to the resource and transducer blocks. Internally updated data such as process variables and diagnostics will not be restricted. N/A = No blocks are blocked Physical = Locks resource and transducer block Everything = Locks every block.
  • Page 17 Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 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. 1.
  • Page 18 Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 MAINT_PRI MAINT_PRI designates the alarming priority of the MAINT_ALM, “Process alarms” on page 16. 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.

  • Page 19: Sensor Transducer Block

    Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 Table 2-1. RB.RECOMMENDED_ACTION Failed/Maint/Advise Recommended action Alarm type Active Event text string None None No action required Non-volatile writes have been deferred, leave the Advisory NV Writes Deferred device powered until the advisory goes away Configuration Error Re-write the Sensor Configuration Confirm the operating range of the applied sensor...

  • Page 20: Analog Input Function Block

    Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 2.4.3 Analog Input function block Configure the AI block A minimum of four parameters are required to configure the AI block. the parameters are described below with example configurations shown at the end of this section. CHANNEL Select the channel that corresponds to the desired sensor measurement.
  • Page 21 Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 When the engineering units of the XD_SCALE are selected, this causes the engineering units of the PRI- MARY_VALUE_RANGE in the Transducer Block to change to the same units. THIS IS THE ONLY WAY TO CHANGE THE ENGINEERING UNITS IN THE SENSOR TRANSDUCER BLOCK, PRIMARY_VALUE_RANGE parameter.
  • Page 22 Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 AI2 as Terminal Temperature 1. Put the AI Block into OOS mode. a. Go to MODE_BLK.TARGET, select OOS (0x80). 2. Go to CHANNEL, select Body Temperature. 3. Go to L_TYPE. select Direct. 4.
  • Page 23 Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 Alarm priority Alarms are grouped into five levels of priority: Priority Priority description number The alarm condition is not used. An alarm condition with a priority of 1 is recognized by the system, but is not reported to the operator.

  • Page 24: Lcd Transducer Block

    Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 2.4.4 LCD transducer block The LCD display meter connects directly to the Rosemount 644 electronics F Fieldbus output OUNDATION board. The meter indicates output and abbreviated diagnostic messages. The first line of five characters displays the sensor being measured. If the measurement is in error, “Error”...

  • Page 25: Operation And Maintenance

    Some hosts will use Device Descriptions (DD) and DD Methods to complete device configuration and will display data consistently across platforms. The DD can found on Emerson.com/Rosemount. There is no requirement that a host or configuration tool support these features.

  • Page 26: Troubleshooting Guides

    Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 2.5.2 Troubleshooting guides Figure 2-1. 644 Troubleshooting Flowchart PROBLEMS WITH COMMUNICATIONS Device does not appear on segment. Device does not stay on segment. 1. Check wiring to device. 2. Recycle power to device. 3.
  • Page 27 Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 Figure 2-2. Problems with Communications Flowchart COMMUNICATIONS ESTABLISHED BUT HAVE “BLOCK_ERR” OR AN “ALARM” CONDITION. “Plantweb Alerts” on page 10 Problem Identified? Perform Recommended Action, see Table 2-1. Read the following parameters in the Resource Block to determine the recommended action.

  • Page 28: Sensor Transducer Block

    Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 2.5.3 Sensor Transducer block Sensor calibration, lower and upper trim methods In order to calibrate the transmitter, run the Lower and Upper Trim Methods. If your system does not support methods, manually configure the Transducer Block parameters listed below. 1.
  • Page 29 Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 Note When sensor type is changed, the transmitter reverts to the factory trim. Changing sensor type causes you to loose any trim performed on the transmitter. Table 2-3. Sensor Transducer Block BLOCK_ERR Messages Condition name and description Other Out of Service: The actual mode is out of service.

  • Page 30: Analog Input Function Block

    Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 Table 2-5. Sensor Transducer Block STB.SENSOR_DETAILED_ STATUS Messages STB.SENSOR_DETAILED_STATUS Description Terminal Temperature Out of Operating PRT readings have gone beyond SECONDARY_VALUE_RANGE Range values PRT readings have gone below 2% of lower range or above 6% of Terminal Temperature Beyond Operating upper range of PRT.

  • Page 31: Resource Block

    Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 Table 2-6. AI BLOCK_ERR Conditions Condition Condition name and description number Other 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.

  • Page 32: Lcd Transducer Block

    Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 Table 2-8. Resource Block BLOCK_ERR Messages Condition name and description Other Device Needs Maintenance Now Memory Failure: A memory failure has occurred in FLASH, RAM, or EEPROM memory. Lost NV Data: Non-volatile data that is stored in non-volatile memory has been lost. Device Needs Maintenance Now.
  • Page 33 Reference Manual Configuration 00809-0400-4728, Rev CA September 2018 Self test procedure for the LCD display The SELF_TEST parameter in the Resource block will test LCD display segments. When running, the segments of the display should light up for about five seconds. If your host system supports methods refer to your host documentation on how to run the “Self Test”...
  • Page 34 Configuration Reference Manual 00809-0400-4728, Rev CA September 2018 Configuration...

  • Page 35: Overview

    Reference Manual Installation 00809-0400-4728, Rev CA September 2018 Section 3 Installation Overview ................page 29 Safety messages .
  • Page 36 Installation Reference Manual 00809-0400-4728, Rev CA September 2018 Figure 3-1. Installation Flowchart Bench START Calibration? HERE FIELD INSTALL BASIC SETUP Mount Transmitter Set Sensor Type Wire Transmitter Set Number of Wires Power Transmitter Set Units FINISHED Set Range Values Set Damping VERIFY Simulate Sensor Input Within...

  • Page 37: Mounting

    Reference Manual Installation 00809-0400-4728, Rev CA September 2018 Mounting Mount the transmitter at a high point in the conduit run to prevent moisture from draining into the transmitter housing. The Rosemount 644 head mount installs: In a connection head or universal head mounted directly on a sensor assembly ...

  • Page 38: Installation

    Installation Reference Manual 00809-0400-4728, Rev CA September 2018 Figure 3-3. Assembling 644H for Use in an Existing L1 Connection Head A. Existing threaded sensor connection head (former option code L1) B. Kit includes replacement bracket and screws Installation 3.4.1 Typical European installation Head mount transmitter with DIN plate style sensor 1.

  • Page 39: Typical North American Installation

    Reference Manual Installation 00809-0400-4728, Rev CA September 2018 3.4.2 Typical North American installation Head mount transmitter with threaded sensor 1. Attach the thermowell to the pipe or process container wall. Install and tighten thermowells before applying process pressure. 2. Attach necessary extension nipples and adapters to the thermowell. Seal the nipple and adapter threads with silicone tape.

  • Page 40: Lcd Display Installation

    Installation Reference Manual 00809-0400-4728, Rev CA September 2018 3.4.3 LCD display installation The LCD display provides local indication of the transmitter output and abbreviated diagnostic messages governing transmitter operation. Transmitters ordered with the LCD display are shipped with the meter installed.

  • Page 41: Wiring

    Reference Manual Installation 00809-0400-4728, Rev CA September 2018 Wiring All power to the transmitter is supplied over the signal wiring. Use ordinary copper wire of sufficient size to ensure that the voltage across the transmitter power terminals does not drop below 9 Vdc. 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.

  • Page 42: Sensor Connections

    3-wire RTD RTD and and mV ™ Emerson provides 4-wire sensors for all single element RTDs. Use these RTDs in 3-wire configurations by leaving the unneeded leads disconnected and insulated with electrical tape. Thermocouple or millivolt inputs The thermocouple can be connected directly to the transmitter. Use appropriate thermocouple extension wire if mounting the transmitter remotely from the sensor.
  • Page 43 Reference Manual Installation 00809-0400-4728, Rev CA September 2018 RTD or ohm inputs The transmitters will accept a variety of RTD configurations, including 2-wire, 3-wire, or 4-wire. If the transmitter is mounted remotely from a 3-wire or 4-wire RTD, it will operate within specifications, without recalibration, for lead wire resistances of up to 60 ohms per lead (equivalent to 6,000 ft.

  • Page 44: Power Supply

    Installation Reference Manual 00809-0400-4728, Rev CA September 2018 Lead wire imbalance seen by the transmitter = 0.5 Ω 0.5 Ω ------------------------------------------------------------------------------ - 1.3 °C Basic error 0.00385 Ω / Ω °C × 100 Ω 0.0039 Ω / Ω °C × 25 °C ×...
  • Page 45 Reference Manual Installation 00809-0400-4728, Rev CA September 2018 Option 1 1. Connect signal wiring shield to the sensor wiring shield. 2. Ensure the two shields are tied together and electrically isolated from the transmitter housing. 3. Ground shield at the power supply end only. 4.
  • Page 46 Installation Reference Manual 00809-0400-4728, Rev CA September 2018 4. Ground signal wiring shield at the power supply end. A. Sensor wires C. Shield ground point B. Transmitter D. F Fieldbus segment OUNDATION Grounded thermocouple inputs 1. Ground sensor wiring shield at the sensor. 2.

  • Page 47: Product Certifications

    To view current Rosemount 644 Product Certifications, follow these steps: Drawings 1. Go to Emerson.com/Rosemount/Rosemount-644. To view current Rosemount 644 Ordering Information, 2. Scroll as needed to the green menu bar and click Specifications, and Drawings, follow these steps: Documents & Drawings.
  • Page 48 Reference Manual Reference Data September 2018 00809-0400-4728, Rev CA Reference Data...

  • Page 49: Fieldbus Block Information

    Foundation Fieldbus Block Information Reference Manual September 2018 00809-0400-4728, Rev CA ™ Appendix B Fieldbus Block OUNDATION Information Resource block ............... page 43 Sensor transducer block .
  • Page 50 Reference Manual Fieldbus Block Information OUNDATION September 2018 00809-0400-4728, Rev CA Table B-1. Resource Block Parameters and Descriptions Index Parameter Description number This parameter reflects the error status associated with the hardware or software BLOCK_ERR components associated with a block. It is a bit string, so that multiple errors may be shown.
  • Page 51 Foundation Fieldbus Block Information Reference Manual September 2018 00809-0400-4728, Rev CA Table B-1. Resource Block Parameters and Descriptions Index Parameter Description number FAILED_PRI Designates the alarming priority of the FAILED_ALM. FB_OPTIONS Indicates which function block licensing options are enabled. Used to show supported resource block options. See Error! Reference source not found. FEATURES The supported features are: SOFT_WRITE_LOCK_SUPPORT, HARD_WRITE_LOCK_SUPPORT, REPORTS, and UNICODE.
  • Page 52 Reference Manual Fieldbus Block Information OUNDATION September 2018 00809-0400-4728, Rev CA Table B-1. Resource Block Parameters and Descriptions Index Parameter Description number 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. NV_CYCLE_T At the end of NV_CYCLE_T, only those parameters which have changed need to be updated in NVRAM.

  • Page 53: Sensor Transducer Block

    Foundation Fieldbus Block Information Reference Manual September 2018 00809-0400-4728, Rev CA Table B-1. Resource Block Parameters and Descriptions Index Parameter Description number 0 = Uninitialized 1 = do not power-up with NV defaults 2 = power-up with default node address START_WITH_DEFAULTS 3 = power-up with default pd_tag and node address 4 = power-up with default data for the entire communications stack (no application...

  • Page 54: Parameters And Descriptions

    Reference Manual Fieldbus Block Information OUNDATION September 2018 00809-0400-4728, Rev CA B.2.1 Parameters and descriptions Table B-2. Sensor Transducer Block Parameters and Descriptions Notes on how changing this Index Parameter Description parameter effects transmitter number operation No effect on operation of transmitter but ALERT_KEY The identification number of the plant unit.
  • Page 55 Foundation Fieldbus Block Information Reference Manual September 2018 00809-0400-4728, Rev CA Table B-2. Sensor Transducer Block Parameters and Descriptions Notes on how changing this Index Parameter Description parameter effects transmitter number operation The actual, target, permitted, and normal modes of the block. Target: The mode to “go to”...
  • Page 56 Reference Manual Fieldbus Block Information OUNDATION September 2018 00809-0400-4728, Rev CA Table B-2. Sensor Transducer Block Parameters and Descriptions Notes on how changing this Index Parameter Description parameter effects transmitter number operation Defines the type of fill fluid used in the SECONDARY_VALUE No effect.

  • Page 57: Analog Input (Ai) Function Block

    Foundation Fieldbus Block Information Reference Manual September 2018 00809-0400-4728, Rev CA B.3 Analog Input (AI) function block The Analog Input (AI) function block processes field device measurements and makes them available to other function blocks. The output value from the AI block is in engineering units and contains a status indicating the quality of the measurement.

  • Page 58: Analog Input (Ai) Parameter Table

    Reference Manual Fieldbus Block Information OUNDATION September 2018 00809-0400-4728, Rev CA B.3.1 Analog input (AI) parameter table Table B-3. Definitions of AI Function Block System Parameters Index Parameter Available values Units Default Read/Write Description 0 = Auto Ack Disabled ACK_OPTION None 0 all Disabled Read and Write...
  • Page 59 Foundation Fieldbus Block Information Reference Manual September 2018 00809-0400-4728, Rev CA Table B-3. Definitions of AI Function Block System Parameters Index Parameter Available values Units Default Read/Write Description The setting for the alarm limit used to detect the LO LO_LIM Out_Scale Out_Scale Not applicable...

  • Page 60: Lcd Transducer Block

    Reference Manual Fieldbus Block Information OUNDATION September 2018 00809-0400-4728, Rev CA B.4 LCD transducer block Table B-4. LCD Transducer Block Parameters and Descriptions Parameter Index Description ALERT_KEY The identification number of the plant unit. BLK_TAG_1 The tag of the block containing DP1. BLK_TAG_2 The tag of the block containing DP2.
  • Page 61 Foundation Fieldbus Block Information Reference Manual September 2018 00809-0400-4728, Rev CA Table B-4. LCD Transducer Block Parameters and Descriptions Parameter Index Description TRANSDUCER_TYPE Identifies the transducer that follows. UNITS_TYPE_1 This parameter determines where the units for the display parameter come from. UNITS_TYPE_2 This parameter determines where the units for the display parameter come from.

  • Page 62: Pid Block

    Reference Manual Fieldbus Block Information OUNDATION September 2018 00809-0400-4728, Rev CA B.5 PID block Table B-5. PID Block Parameters and Descriptions Parameter Index Parameter Index Parameter Index ACK_OPTIONS HI_HI_LIM SP_LO_LIM ALARM_HYS HI_HI_PRI SP_RATE_DN ALARM_SUM HI_LIM SP_RATE_UP ALERT_KEY HI_PRI SP_WORK BAL_TIME IDEADBAND ST_REV BETA...
  • Page 64 +971 4 8118100 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 +971 4 8865465 of their respective owners.

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