Emerson Rosemount 644h Manuel utilisateur

Quick Start Guide

00825-0300-4728, Rev BA

January 2016

Rosemount™644H Temperature

Transmitters

with PROFIBUS®PA

00825-0300-4728_RevBA.fm Page 1 Tuesday, January 19, 2016 10:11 AM

January 2016

Quick Start Guide

NOTICE

This guide provides basic guidelines for the Rosemount 644. It does not provide instructions for detailed

configuration, diagnostics, maintenance, service, troubleshooting, or installation. Refer to the 644 Reference

Manual (document number 00809-0100-4728) for more instruction. The manual and this guide are also

available electronically on www.rosemount.com.

Explosions could result in death or serious injury.

Installation of this transmitter in an explosive environment must be in accordance with the appropriate local,

national, and international standards, codes, and practices. Please review the approvals section of this manual

for any restrictions associated with a safe installation.

In an Explosion-proof/Flameproof installation, do not remove the transmitter covers when power is applied to

the unit.

Process leaks may cause harm or result in death.

Install and tighten thermowells or sensors before applying pressure.

Do not remove the thermowell while in operation.

Electrical shock can result in death or serious injury.

Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical

shock.

Contents

Mount the transmitter . . . . . . . . . . . . . . . . . . . . 3

Wire and apply power . . . . . . . . . . . . . . . . . . . . . 4

Verify tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Transmitter configuration . . . . . . . . . . . . . . . . . 8

Product Certifications . . . . . . . . . . . . . . . . . . . 11

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Quick Start Guide

January 2016

1.0 Mount the transmitter

Mount the transmitter at a high point in the conduit run to prevent moisture from

draining into the transmitter housing.

1.1 Typical connection head installation

Head mount transmitter with DIN plate style sensor

1. Attach the thermowell to the pipe or process container wall. Install and tighten

the thermowell before applying process pressure.

2. Assemble the transmitter to the sensor. Push the transmitter mounting screws

through the sensor mounting plate and insert the snap rings (optional) into the

transmitter mounting screw groove.

3. Wire the sensor to the transmitter(see“Transmitter configuration” on page 8 ).

4. Insert the transmitter-sensor assembly into the connection head. Thread the

transmitter mounting screw into the connection head mounting holes.

Assemble the extension to the connection head. Insert the assembly into the

thermowell.

5. Slip the shielded cable though the cable gland.

6. Attach a cable gland into the shielded cable.

7. Insert the shielded cable leads into the connection head through the cable

entry. Connect and tighten the cable gland.

8. Connect the shielded power cable leads to the transmitter power terminals.

Avoid contact with sensor leads and sensor connections.

9. Install and tighten the connection head cover. Enclosure covers must be fully

engaged to meet explosion-proof requirements.

1.2 Typical universal head 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.

3. Screw the sensor into the thermowell. Install drain seals if required for severe

environments or to satisfy code requirements.

A. 644H transmitter

B. Connection head

C. Thermowell

D. Transmitter mounting screws

E. Integral mount sensor with flying leads

F. Extension

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January 2016

Quick Start Guide

4. Pull the sensor wiring leads through the universal head and transmitter.

Mount the transmitter in the universal head by threading the transmitter

mounting screws into the universal head mounting holes.

5. Mount the transmitter-sensor assembly into the thermowell. Seal adapter

threads with silicone tape.

6. Install conduit for field wiring to the conduit entry of the universal head. Seal

conduit threads with PTFE tape.

7. Pull the field wiring leads through the conduit into the universal head. Attach

the sensor and power leads to the transmitter. Avoid contact with other

terminals.

8. Install and tighten the universal head cover. Enclosure covers must be fully

engaged to meet explosion-proof requirements.

2.0 Wire and apply power

Wiring diagrams are located inside the terminal block cover and on the

transmitter top label.

An external power supply is required to power a PROFIBUS segment.

The power required across the transmitter power terminals is 9 to 32 VDC (the

power terminals are rated to 32 VDC). To prevent damaging the transmitter,

do not allow terminal voltage to drop below 9 VDC when changing the

configuration parameters.

2.1 Power filter

A PROFIBUS segment requires a power conditioner to isolate the power supply

filter and decouple the segment from other segments attached to the same

power supply.

2.2 Power the transmitter

1. Remove the terminal block cover (if applicable).

2. Connect the power lead to the power terminals (The 644 power terminals are

polarity insensitive for the PROFIBUS protocol.).

3. Tighten the terminal screws. When tightening the sensor and power wires, the

max torque is 6 in.-lbs. (0.7 N-m).

4. Reattach and tighten the cover (if applicable).

A.Threaded thermowell

B. Standard extension

C. Threaded style sensor

D. Universal head (transmitter inside)

E. Conduit entry

ABCD

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Quick Start Guide

January 2016

5. Apply power (9 – 32 VDC).

A. Sensor terminals

B. Communication terminals

C. Power terminals

Figure 1. Sensor Connections

1. Emerson

™Process Management 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.

2. The transmitters must be configured for at least a 3-wire RTD in order to recognize an RTD with a

compensation loop.

Figure 2. Typical Configuration for PROFIBUS Networking

A. PROFIBUS DP (RS-485 up to 12 MBd)

B. PROFIBUS Class 2 Master

(configuration tool)

C. DP/PA coupler

D. PROFIBUS transmitter

E. Power/signal wiring

F. PROFIBUS PA (MBP-IS at 31.25 KBd)

G. Terminators (depending on cable

characteristics), 6234 ft. (1900 m) max

1 2 3 4

2-wire

RTD and ⍀

3-wire

RTD(1)

and ⍀

4-wire

RTD(2)

and ⍀

T/C

and mV

1234 1234 1234 1234

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Quick Start Guide

Note

• Each segment in a PROFIBUS trunk must be terminated at both ends.

• Some DP/PA couplers contain the power supply, one terminator, and the power conditioner

within the coupling device.

• The configuration tool is typically located in the control room.

2.3 Ground the transmitter

Ungrounded thermocouple, mV, and RTD/ohm inputs

Each process installation has different requirements for grounding. Use the

grounding options recommended by the facility for the specific sensor type, or

begin with grounding Option 1 (the most common).

Option 1

1. Connect sensor wiring shield to the transmitter housing.

2. Ensure the sensor shield is electrically isolated from surrounding fixtures that

may be grounded.

3. Ground signal wiring shield at the power supply end.

Option 2

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. Ensure that the sensor shield is electrically isolated from the surrounding

grounded fixtures.

A. Transmitter

B. Sensor wires

C. PROFIBUS loop

D. Shield ground point

A.Transmitter

B.Sensor wires

C. PROFIBUS loop

D. Shield ground point

00825-0300-4728_RevBA.fm Page 6 Tuesday, January 19, 2016 10:11 AM

Quick Start Guide

January 2016

Note

Connect shields together, electrically isolated from the transmitter

Option 3

1. Ground sensor wiring shield at the sensor, if possible.

2. Ensure the sensor wiring and signal wiring shields are electrically isolated from

the transmitter housing.

3. Do not connect the signal wiring shield to the sensor wiring shield.

4. Ground signal wiring shield at the power supply end.

Grounded thermocouple inputs

Option 4

1. Ground sensor wiring shield at the sensor.

2. Ensure the sensor wiring and signal wiring shields are electrically isolated from

the transmitter housing.

3. Do not connect the signal wiring shield to the sensor wiring shield.

4. Ground signal wiring shield at the power supply end.

A. Transmitter

B. Sensor wires

C. PROFIBUS loop

D. Shield ground point

A. Transmitter

B. Sensor wires

C. PROFIBUS loop

D. Shield ground point

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January 2016

Quick Start Guide

3.0 Verify tagging

4.0 Transmitter configuration

Each PROFIBUS capable host or configuration tool has a different way of

displaying and performing configurations. Some use Device Descriptions (DD) or

DD methods for configuration and to display data consistently across platforms.

There is no requirement that a host or configuration tool support these features.

The following is the minimum configuration requirement for a temperature

measurement. This guide is designed for systems not using DD methods. For a

complete list of parameters and configuration information refer to the

Rosemount 644 Head and Rail Mount Temperature Transmitter Reference

Manual (document number 00809-0100-4728).

The 644 must be configured via a Class 2 master (DD or DTM based). The basic

configuration tasks for the PROFIBUS PA Temperature Transmitter include:

Assign address

Set sensor type and connection.

Configure engineering units.

4.1 Assign address

The Rosemount 644 Pressure Transmitter 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 host. Usually, addresses 0-2 are reserved for

masters or couplers, therefore transmitter addresses between 3 and 125 are

recommended.

3.1 Commissioning (paper) tag

To identify which device is at a particular

location use the removable tag provided

with the transmitter. Ensure the physical

device tag (PD Tag field) is properly

entered in both places on the removable

commissioning tag and tear off the

bottom portion for each transmitter.

Note

The device description loaded in the host system

must be at the same revision as this device. The

device description can be downloaded from

www.rosemount.com.

COMMISSIONING TAG

IDENT_NUMBERS 4153 [9700]

Device Address: ##

Physical Device Tag: TT- 100

Support files available at

www.rosemount.com

IDENT_NUMBERS 4153 [9700]

Device Address: ##

Mod S/N: 0x########

Physical Device Tag:

TT- 100

Tear Here

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Quick Start Guide

January 2016

Note

When shipped from the factory Rosemount 644 PROFIBUS Profile 3.02 devices are defaulted in

Identification Number ADAPTATION MODE. This mode allows the transmitter to communicate

with any Profibus control host with either the generic Profile GSD file (9700) or the Rosemount 644

specific GSD (4153) loaded in the host; therefore, if is not required to change the transmitter

identification number at startup.

Transducer function block

This block contains temperature measurement data for the sensor and the

terminal temperature. It also includes information about sensor types,

engineering units and diagnostics. At a minimum, verify the parameters in Table 1.

Analog Input (AI) function block

The AI block processes field device measurements and makes the outputs

available to other function blocks. The output value of the AI block is in

engineering units and contains a status indicating the quality of the

measurements. Use the Channel number to define the variable that the AI block

processes. At a minimum, verify the parameters of each AI block in Table 2.

Table 1. Transducer Block Parameters

Parameter Comments

Typical Configuration

LIN_TYPE example: “Pt 100_A_385 (IEC 751)”

SENSOR_CONNECTION example: “2-wire”, “3-wire”, “4-wire”

PRIMARY_VALUE_UNIT example: “Degrees C”

Sensor Matching Configuration

LIN_TYPE “User Defined, Calvandu”

SENSOR_CONNECTION example: “2-wire”, “3-wire”, “4-wire”

PRIMARY_VALUE_UNIT example: “Degrees C”

SENSOR_CAL_METHOD set to “User Trim Standard”

CAL_VAN_DUSEN_COEFF.A enter sensor specific coefficients

CAL_VAN_DUSEN_COEFF.B enter sensor specific coefficients

CAL_VAN_DUSEN_COEFF.C enter sensor specific coefficients

CAL_VAN_DUSEN_COEFF.R0 enter sensor specific coefficients

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Quick Start Guide

4.2 Physical block

The Physical Block encompasses all parameters and functions required to identify

the hardware and software (revision numbers, status values, device address etc.)

of the device. The IDENT_NUMBER_SELECTOR parameter is used to change how

the host sees the device.

4.3 Host integration

Control host (Class 1)

The Rosemount 644 device utilizes Condensed Status as recommended by the

Profile 3.02 specification and NE 107. See manual for Condensed Status bit

assignment information.

The appropriate GSD file must be loaded on the control host - Rosemount 644

specific (rmt4053.gsd) or Profile 3.02 Generic (pa139700.gsd). These files can be

found on www.emersonprocess.com\rosemount or www.profibus.com.

Configuration host (Class 2)

The appropriate DD or DTM file must be installed in the configuration host. These

files can be found at www.emersonprocess.com/rosemount.

Table 2. AI Block Parameters

Parameter Comments

CHANNEL

The CHANNEL parameter defines which transducer block measurement is used by

the AI block. In the 644 Transmitter, the channel will always be set to Sensor 1.

There is no other option for this variable.

LIN_TYPE

This parameter defines the relationship between the block input and the block

output. Since the 644 Transmitter does not require linearization, this parameter

will always be set to No Linearization. This means that the AI block will only apply

scaling, filtering, and limit checking to the input value.

PV_SCALE Set desired measurement range and units. Units must be one of the following:

mV, Ohms, °C, °F, °R, K

OUT_SCALE For “DIRECT”, set OUT_SCALE to match PV_SCALE

HI_HI_LIM

HI_LIM

LO_LIM

LO_LO_LIM

Process alarms.

Must be within the range defined by “OUT_SCALE”

Table 3. Physical Block Parameter

Parameter Comments

IDENT_NUMBER

_SELECTOR

Can be changed to Profile Specific, Manufacturer Specific or Adaptation Mode.

Default to Adaptation Mode the Host chooses which file (GSD) it wants to use;

whether to view the device GSD file in a generic or a manufacturer specific way.

Profile Specific mode shows the generic GSD associated with the Profibus Profile

version (9700) of the device and Manufacturer Specific Mode displays the GSD file

with parameters specific to the Rosemount 644.

00825-0300-4728_RevBA.fm Page 10 Tuesday, January 19, 2016 10:11 AM

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