Emerson Rosemount 644h User manual

Quick Start Guide
00825-0300-4728, Rev BA
January 2016
Rosemount™644H Temperature
Transmitters
with PROFIBUS®PA
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January 2016
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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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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
D
A
E
B
F
C
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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
E
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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
A
B
C
2-wire
RTD and ⍀
3-wire
RTD(1)
and ⍀
4-wire
RTD(2)
and ⍀
T/C
and mV
1234 1234 1234 1234
A
D
E
G
F
C
B
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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
A
B
C
DD
D
B
AC
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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
A
B
DD
C
A
B
DD
C
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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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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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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.
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