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
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 a Emerson Process
Management Sales Representative.
SAFETY MESSAGESInstructions and procedures in this section may require special precautions to
ensure the safety of the personnel performing the operations. Infor mation that
potentially raises safety issues is indicated by a warning symbol ( ). Please
refer to the following safety messages before performing an operation
preceded by this symbol.
Warnings
Failure to follow these installation guidelines could result in death or
serious injury.
• Make sure only qualified personnel perform the installation.
Explosions could result in death or serious injury.
• Do not remove the connection head cover in explosive atmospheres when the
circuit is live.
• Before connecting F
the instruments in the loop are installed in accordance with intrinsically safe or
non-intrinsic field wiring practices.
• Verify that the operating atmosphere of the transmitter is consistent with the
appropriate hazardous locations certifications.
• All connection head covers must be fully engaged to meet
explosion-proof requirements.
Process leaks could result in death or serious injury.
• Do not remove the thermowell while in operation.
• Install and tighten thermowells and sensors before applying pressure.
Electrical shock could cause death or serious injury.
• Use extreme caution when making contact with the leads and terminals.
OUNDATION fieldbus in an explosive atmosphere, make sure
www.rosemount.com
Page 8
Reference Manual
00809-0400-4728, Rev AA
Rosemount 644
OVERVIEW
ManualThis manual is designed to assist in the installation, operation, and
maintenance of Rosemount 644 head mount and 644 rail mount.
Section 1: Introduction
•Transmitter and Manual Overview
•Considerations
•Return of Material
Section 2: Installation
•Mounting
•Installation
•Wiring
•Power Supply
•Commissioning
Section 3: Configuration
•Calibration
•Hardware Maintenance
•Diagnostic Messaging
June 2011
Appendix A: Specifications and Reference Data
•Specifications
•Dimensional Drawings
•Ordering Information
•Biotechnology, Pharmaceutical Industries, and Sanitary Applications
Appendix B: Product Certifications
•Product Certifications
•Installation Drawings
Appendix C: Foundation fieldbus Block Information
•Information regarding the Function Blocks
Transmitter Features of the Rosemount 644 include:
•Accepts inputs from a wide variety of sensors
•Configuration using F
•Electronics that are completely encapsulated in epoxy and enclosed in
a metal housing, making the transmitter extremely durable and
ensuring long-term reliability
•A compact size and two housing options allowing mounting flexibility for
the control room or the field
OUNDATION fieldbus
1-2
Page 9
Reference Manual
00809-0400-4728, Rev AA
June 2011
Refer to the following literature for a full range of compatible connection
heads, sensors, and thermowells provided by Emerson Process
Management.
•Temperature Sensors and Assemblies Product Data Sheet, Volume 1
(document number 00813-0100-2654)
•Temperature Sensors and Assemblies Product Data Sheet, Volume 2
(document number 00813-0200-2654)
Rosemount 644
CONSIDERATIONS
GeneralElectrical temperature sensors such as RTDs and thermocouples produce
low-level signals proportional to their sensed temp er a tur e . The 64 4 co nv er ts
the low-level sensor signal to a standard 4–20 mA dc, or digital F
fieldbus signal that is relatively insensitive to lead length and electrical noise.
This signal is then transmitted to the control room via two wires.
OUNDATION
CommissioningThe transmitter can be commissioned before or after installation. It may be
useful to commission it on the bench, before installation, to ensure proper
operation and to become familiar with its functionality. Make sure the
instruments in the loop are installed in accordance with intrinsically safe,
FISCO, or non-incendive field wiring practices.
MechanicalLocation
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 644 head mount
transmitter to a DIN rail or assembling a new 644 head mount to an existing
threaded sensor connection head (former option code L1).
Electrical Proper electrical installation is necessary to prevent errors due to sensor lead
resistance and electrical noise. For best results, shielded cable sh ou ld be
used in electrically noisy environments.
Make wiring connections through the cable e ntry in the side of the connection
head. Be sure to provide adequate clearance for cover remo val.
EnvironmentalThe transmitter electronics module is permanently sealed within the housing,
resisting moisture and corrosive damage. Verify that the operating
atmosphere of the transmitter is consistent with the appropriate hazardous
locations certifications.
Temperature Effects
The transmitter will operate within specifications for ambient temperatures
between –40 and 185 °F (–40 and 85 °C). Heat from the process is
transferred from the thermowell to the transmitter housing. If the expected
process temperature is near or beyond specification limit s, consider the use of
additional thermowell lagging, and extension nipple, or a remote mounting
configuration to isolate the transmitter from the process.
Figure 1-1 provides an example of the relationship between transmitter
housing temperature rise and extension length.
1-3
Page 10
Rosemount 644
Housing Temperature Rise, Above
Ambient °C (°F)
3456789
0
60 (108)
50 (90)
40 (72)
30 (54)
20 (36)
10 (18)
3.6
22
Extension Length (in.)
815 °C (1500 °F) Oven Temperature
540 °C (1000 °F)
Oven Temperature
250 °C (482 °F) Oven Temperature
Figure 1-1. 644 head mount
Transmitter Connection Head
Temperature Rise vs. Extension
Length
Reference Manual
00809-0400-4728, Rev AA
June 2011
Example
The transmitter specification limit is 85 °C. If the ambient temperature is 55 °C
and the process temperature to be measured is 800 °C, the maximum
permissible connection head temperature rise is the transmitter specification
limit minus the ambient temperature (moves 85 to 55 °C), or 30 °C.
In this case, an extension of 100 mm meets this requirement, but 125 mm
provides a margin of 8 °C, thereby reducing any temperature effects in the
transmitter.
RETURN OF MATERIALSTo expedite the return process in North America, call the Emerson Process
Management 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.
The 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 a Emerson Process Management sa les
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.
PRODUCT
RECYCLING/DISPOSAL
1-4
Recycling of equipment and packaging should be taken into consideration
and disposed of in accordance with local and national legislation/regulations.
SAFETY MESSAGESInstructions and procedures in this section may require special precautions to
ensure the safety of the personnel performing the operations. Infor mation that
potentially raises safety issues is indicated by a warning symbol ( ). Please
refer to the following safety messages before performing an operation
preceded by this symbol.
Warnings
Failure to follow these installation guidelines could result in death or
serious injury.
• Make sure only qualified personnel perform the installation.
Explosions could result in death or serious injury.
• Do not remove the connection head cover in explosive atmospheres when the
circuit is live.
• Before connecting a Field Communicator in an explosive atmosphere, make sure
the instruments in the loop are installed in accordance with intrinsically safe or
non-incendive field wiring practices.
• Verify that the operating atmosphere of the transmitter is consistent with the
appropriate hazardous locations certifications.
• All connection head covers must be fully engaged to meet
explosion-proof requirements.
Process leaks could result in death or serious injury.
• Do not remove the thermowell while in operation.
• Install and tighten thermowells and sensors before applying pressure.
Electrical shock could cause death or serious injury.
• Use extreme caution when making contact with the leads and terminals.
www.rosemount.com
Page 12
Rosemount 644
START
HERE
Bench
Calibration?
BASIC SETUP
Set Sensor Type
Set Number of Wires
Set Units
Set Range Values
Set Damping
VERIFY
Simulate Sensor Input
Within
Specifications?
Refer to Section 3: Configuration
FIELD INSTALL
Set Failure Mode
Switch
Mount Transmitter
Wire Transmitter
Power Transmitter
FINISHED
Does not apply to the 644
with F
OUNDATION fieldbus
Figure 2-1. Installation Flowchart
Reference Manual
00809-0400-4728, Rev AA
June 2011
2-2
Page 13
Reference Manual
Transmitter
Mounting
Hardware
Rail Clip
Transmitter
Mounting
Hardware
Rail Clip
Kit includes
replacement bracket
and screws.
Existing Threaded Sensor Connection Head
(Former option code L1)
00809-0400-4728, Rev AA
June 2011
Rosemount 644
MOUNTINGMount the transmitter at a high point in the conduit run to prevent moisture
from draining into the transmitter housing.
The 644 head mount installs:
•In a connection head or universal head mounted directly on a sensor
assembly
•Apart from a sensor assembly using a universal head
•To a DIN rail using an optional mounting clip.
The 644 rail mount attaches directly to a wall or to a DIN rail.
Mounting a 644H to a DIN Rail
To attach a head mount transmitter to a DIN rail, assemble the appropriate rail
mounting kit (part number 00644-5301-0010) to the transmitter as shown in
Figure 2-2.
Figure 2-2. Assembling Rail Clip
Hardware to a 644H
G-Rail (asymmetric)Top Hat Rail (symmetric)
Figure 2-3. Assembling 644H for
Use in an Existing L1
Connection Head
Note: Kit includes Mounting Hardware and both types of Rail Kits.
Retrofitting a 644H for Use in an Existing Threaded Sensor Connection
Head
To mount a 644H in an existing threaded sensor connection head (former
option code L1), order the 644H retrofit kit (part number 00644-5321-0010).
The retrofit kit includes a new mounting bracket an d all as soc iated hardware
necessary to facilitate the installation of the 644H in the existing head. See
Figure 2-3.
2-3
Page 14
Rosemount 644
A
D
B
C
E
F
INSTALLATION
Reference Manual
00809-0400-4728, Rev AA
June 2011
Typical European
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 Fig ure 2- 7 on page 2-8).
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.Attach a cable gland into the shielded cable.
6.Insert the shielded cable leads into the connection head through the
cable entry. Connect and tighten the cable gland.
7.Connect the shielded power cable leads to the transmitter power
terminals. Avoid contact with sensor leads and sensor connections.
8.Install and tighten the connection head cover. Enclosure covers must
be fully engaged to meet explosion-proof requirements.
A = 644H TransmitterD = Transmitter Mounting Screws
B = Connection HeadE = Integral Mount Sensor with Flying Leads
C = ThermowellF = Extension
2-4
Page 15
Reference Manual
A
B
C
D
E
00809-0400-4728, Rev AA
June 2011
Rosemount 644
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.
3.Screw the sensor into the thermowell. Install drain sea ls if required for
severe environments or to satisfy code requirements.
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 silicone 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.
A = Threaded ThermowellD = Universal Head
B = Threaded Style SensorE = Conduit Entry
C = Standard Extension
2-5
Page 16
Reference Manual
644H
Captive Mounting Screws and Springs
Meter Spacer
LCD Display
10 pin Connector
00809-0400-4728, Rev AA
Rosemount 644
June 2011
LCD Display InstallationThe 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. After-market installation of the meter can be performed if the
transmitter has a meter connector (transmitter revision 5.5.2 or later).
After-market installation requires the meter kit (part number
00644-4430-0001), which includes:
•LCD display assembly (includes LCD display, meter spacer,
and 2 screws)
•Meter cover with O-ring in place
Figure 2-4. Installing the LCD
Display
Use the following procedure to install the meter.
1.If the transmitter is installed in a loop, secure th e loop and discon nect
the power. If the transmitter is installed in an enclosure, remove the
cover from the enclosure.
2.Decide meter orientation (the meter can be rotated in 90°
increments). To change meter orientation, remove the screws located
above and below the display screen. Lift the meter off the meter
spacer. Remove the 8-pin plug and re-insert it in the location that will
result in the desired viewing orientation.
3.Reattach the meter to the meter sp ace r using the screws. If the meter
was rotated 90° from its original position, it will be necessary to
remove the screws from their original holes and re-insert them in the
adjacent screw’s holes.
4.Line up the 10-pin connector with the 10-pin socket and push the
meter into the transmitter until it snaps into place.
5.Attach the meter cover; tighten at least one-third turn after the O-ring
contacts the transmitter housing. The cover must be fully engaged to
meet explosion-proof requirem en ts.
6.Use a Field Communicator, AMS software, or a F
OUNDATION fieldbus
Communication tool to configure the meter to the desired display.
NOTE
Observe the following LCD display temperature limits:
Operating: –4 to 185 °F (–20 to 85 °C)
Storage: –50 to 185 °F (–45 to 85 °C)
2-6
Page 17
Reference Manual
1 2 3 4
Sensor
Terminals
Communication
Terminals
Power Terminals
00809-0400-4728, Rev AA
June 2011
Rosemount 644
WIRINGAll 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-volt age environ ment and a fault conditio n or
installation error occurs, the sensor leads and transm itte r te rm in als co uld
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 terminal s.
Abnormally high voltage can damage the unit. (Sensor and transmitter power
terminals are rated to 42.4 Vdc. A constant 42.4 volts across the sensor
terminals may damage the unit.)
The transmitters will accept inputs from a variety of RTD and thermocouple
types. Refer to Figure 2-5 on page 2-7 when making sensor connections.
Refer to Figure 2-6 on page 2-8 for F
Use the following steps to wire the power and sensor to the transmitter:
OUNDATION fieldbus installations.
Figure 2-5. Transmitter Power,
Communication, and Sensor
Terminals
1.Remove the terminal block cover (if applicable).
2.Connect the positive power lead to the “+” terminal. Connect the
negative power lead to the “–” terminal (see Figure 2-7).
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).
5.Apply power (see “Power Supply”).
644H
2-7
Page 18
Rosemount 644
Power
Supply
6234 ft (1900 m) max
(depending upon cable characteristics)
Integrated Power
Conditioner and Filter
Terminators
(Spur)
(Spur)
(Trunk)
(The power supply,
filter, first
terminator, and
configuration
tool are typically
located in the
control room.)
Devices 1
through 16
F
OUNDATION
fieldbus
Configuration
Tool
Power/
Signal
Wiring
2-wire
RTD and
3-wire RTD
and
4-wire RTD
and
T/C
and mV
*
1234
1234
1234
1234
Figure 2-6. Connecting a
F
OUNDATION fieldbus Host
System to a Transmitter Loop
Reference Manual
00809-0400-4728, Rev AA
June 2011
Sensor ConnectionsThe 644 is compatible with a number of RT D and thermoco uple sensor type s.
Figure 2-7. Sensor Wiring
Diagrams
Figure 2-7 shows the correct input connections to the sensor termina ls on the
transmitter. To ensure a proper sensor connection, anchor the sensor lead
wires into the appropriate compression terminals and tighten the screws.
* 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 withelectrical
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. Make millivolt inputs connections with copper wire. Use
shielding for long runs of wire.
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 feet of 20 AWG
wire). In this case, the leads between the RTD and transmitter should be
shielded. If using only two leads, both RTD leads are in serie s with the sensor
element, so significant errors can occur if the lead lengths exceed three feet
of 20 AWG wire (approximately 0.05 °C/ft). For longer runs, attach a third or
fourth lead as described above.
Sensor Lead Wire Resistance Effect– RTD Input
When using a 4-wire RTD, the effect of lead resistance is eliminated and
has no impact on accuracy. However, a 3-wire sensor will not fully cancel
lead resistance error because it cannot compensate for imbalances in
resistance between the lead wires. Using the same type of wire on all
three lead wires will make a 3-wire RTD installation as accurate as
possible. A 2-wire sensor will produce the largest error because it directly
adds the lead wire resistance to the sensor resistance. For 2- and 3-wire
RTDs, an additional lead wire resistance error is induced with ambient
temperature variations. The table and the examples shown below help
quantify these errors.
Table 2-1. Examples of
Approximate Basic Error
Sensor InputApproximate Basic Error
4-wire RTDNone (independent of lead wire resistance)
3-wire RTD± 1.0 in reading per ohm of unbalanced lead wire resistance
2-wire RTD1.0 in reading per ohm of lead wire resistance
(Unbalanced lead wire resistance = maximum imbalance between
any two leads.)
Examples of Approximate Lead Wire Resistance Effect Calculations
Given:
Total cable length:150 m
Imbalance of the lead wires at 20 °C:1.5
Resistance/length (18 AWG Cu):0.025 /m °C
Temperature coefficient of Cu (Cu):0.039 / °C
Temperature coefficient of Pt(Pt):0.00385 / °C
Change in Ambient Temperature (T
RTD Resistance at 0 °C (Ro):100 (for Pt 100 RTD)
):25 °C
amb
•Pt100 4-wire RTD: No lead wire resistance effect.
Lead wire imbalance seen by the transmitter = 0.5
•Pt100 2-wire RTD:
Lead wire resistance seen by the transmitter = 150 m × 2 wires ×
0.025
/m = 7.5
2-10
Page 21
Reference Manual
Connect shields together, electrically isol ated from the transmitter
Shield ground point
FOUNDATION Fieldbus segment
Transmitter
Sensor Wires
00809-0400-4728, Rev AA
June 2011
POWER SUPPLYFOUNDATION fieldbus Installation
Rosemount 644
Powered over F
OUNDATION fieldbus with standard fieldbus power supplies.
The transmitter operates between 9.0 and 32.0 Vdc, 11 mA maximum.
Transmitter power terminals are rated to 42.4 Vdc.
The power terminals on the 644 with F
OUNDATION fieldbus are polarity
insensitive.
Ground the TransmitterThe transmitter will operate with the current signal loop either floating or
grounded. However, the extra noise in floating systems affects many types of
readout devices. If the signal appears noisy or erratic, grounding the current
signal loop at a single point may solve the problem. The best place to ground
the loop is at the negative terminal of the power supply. Do not ground the
current signal loop at more than one point.
The transmitter is electrically isolated to 500 Vdc/ac rms (707 Vdc), so the
input circuit may also be grounded at any single point. When using a
grounded thermocouple, the grounded junction serves as this point.
Neither side of the loop should be grounded on F
Only the shield wire should be grounded.
NOTE
Do not ground the signal wire at both ends.
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).
OUNDATION fieldbus devices.
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.Ensure that the sensor shield is electrically isolated from the
surrounding grounded fixtures.
2-11
Page 22
Rosemount 644
Transmitter
Shield ground point
Sensor Wires
FOUNDATION Fieldbus segment
Shield ground point
FOUNDATION Fieldbus segment
Transmitter
Sensor Wires
Shield ground point
FOUNDATION Fieldbus segment
Transmitter
Sensor Wires
Reference Manual
00809-0400-4728, Rev AA
June 2011
Option 2:
1.Connect sensor wiring shield to the transmitter housing (only if the
housing is grounded).
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 3:
1.Ground sensor wiring shield at the sensor, if possible.
2.Ensure that 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.
2-12
Grounded Thermocouple Inputs
1.Ground sensor wiring shield at the sensor.
2.Ensure that 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.
OVERVIEWThis section provides information on configuring, troubleshooting, operating,
and maintaining the Rosemount 644 Temperature transmitter using
F
OUNDATION fieldbus protocol.
SAFETY MESSAGESInstructions and procedures in this section may require special precautions to
ensure the safety of the personnel performing the operations. Infor mation that
potentially raises safety issues is indicated by a warning symbol ( ). Please
refer to the following safety messages before performing an operation
preceded by this symbol.
Warnings
Failure to follow these installation guidelines could result in death or
serious injury.
• Make sure only qualified personnel perform the installation.
Explosions could result in death or serious injury.
• Do not remove the connection head cover in explosive atmospheres when the
circuit is live.
• Before powering a F
make sure the instruments in the loop are installed in accordance with intrinsically
safe or non-incendive field wiring practices.
• Verify that the operating atmosphere of the transmitter is consistent with the
appropriate hazardous locations certifications.
• All connection head covers must be fully engaged to meet
explosion-proof requirements.
Process leaks could result in death or serious injury.
• Do not remove the thermowell while in operation.
• Install and tighten thermowells and sensors before applying pressure.
Electrical shock could cause death or serious injury.
• Use extreme caution when making contact with the leads and terminals.
OUNDATION fieldbus segment in an explosive atmosphere,
www.rosemount.com
Page 24
Reference Manual
00809-0400-4728, Rev AA
Rosemount 644
June 2011
GENERAL BLOCK
INFORMATION
Device DescriptionBefore configuring the device, ensure the host has the appropriate Device
Description file revision for this device. The device descriptor can be found on
www.rosemount.com. The initial release of th e Rosemount 644 with
F
OUNDATION fieldbus protocol is device revision 1.
Node AddressThe transmitter is shipped at a temporary (248) address. This will enable
F
OUNDATION fieldbus host systems to automatically recognize the device and
move it to a permanent address.
ModesThe Resource, Transducer, and all function blocks in the device have modes
of operation. These modes govern the operation of the block. Every block
supports both automatic (AUTO) and out of service (OOS) modes. Othe r
modes may also be supported.
Changing Modes
To change the operating mode, set the MODE_BLK.TARGET to the desired
mode. After a short delay, the parameter MODE_BLOCK.ACTUAL should
reflect the mode change if the block is operating properly.
Permitted Modes
It is possible to prevent unauthorized changes to the operating mode of a
block. To do this, configure MODE_BLOCK.PERMITTED to allow only the
desired operating modes. It is recommended to always select OOS as one of
the permitted modes.
Types of Modes
For the procedures described in this manual, it will be helpful to understand
the following modes:
AUTO
The functions performed by the block will execute. If the block has any
outputs, these will continue to update. This is typically the normal
operating mode.
Out of Service (OOS)
The functions performed by the block will not execute. If the block has any
outputs, these will typically not update and the status of any values passed
to downstream blocks will be “BAD.” To make some changes to the
configuration of the block, change the mode of the block to OOS. When
the changes are complete, change the mode back to AUTO.
MAN
In this mode, variables that are passed out of the block can be manually
set for testing or override purposes.
Other Types of Modes
Other types of modes are Cas, RCas, ROut, IMan, and LO. Some of these
may be supported by different function blocks in the 644. For more
information, see the Function Block manual (document number
00809-0100-4783).
3-2
Page 25
Reference Manual
Resource
Block
Transducer
Block
Analog Input
(AI Block)
Other
Function
Blocks
00809-0400-4728, Rev AA
June 2011
Rosemount 644
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:
Link Active SchedulerThe 644 can be designated to act as the backup Link Active Scheduler (LAS)
in the event that the designated LAS is disconne ct ed fro m th e seg m en t. As
the backup LAS, the 644 will take over the management of communications
until the host is restored.
The host system may provide a configuration tool specifically designed to
designate a particular device as a backup LAS. Otherwise, this can be
configured manually as follows:
1.Access the Management Information Base (MIB) for the 644.
To activate the LAS capability, write 0x02 to the
BOOT_OPERAT_FUNCTIONAL_CLASS object (Index 605). To
deactivate, write 0x01.
2.Restart the device.
Block InstallationRosemount devices are pre-configured with function blocks at the factory, the
default permanent configuration for the 644 is listed below. The 644 can have
up to ten additional instantiated function blocks.
•2 Analog Input Blocks (tag names AI 1300, AI 1400)
•1 Proportional/Integral/Derivative Block (tag name PID 1500)
The 644 supports the use of Function Block Instantiation. When a device
supports block instantiation, the number of blocks and block types can be
defined to match specific application needs.The number of bl ocks that can be
instantiated is only limited by the amount of memory within the device and the
block types that are supported by the device. Instantiation does not apply to
standard device blocks like the Resource, Sensor Transducer, LCD
Transducer, and Advanced Diagnostics Blocks.
By reading the parameter “FREE_SPACE” in the Resource block you can
determine how many blocks you can instantiate. Each block that you
instantiate takes up 4.5% of the “FREE_SPACE.”
Block instantiation is done by the host control system or configuration tool, b ut
not all hosts are required to implement this functionality. Please refer to your
specific host or configuration tool manual for more information.
3-3
Page 26
Rosemount 644
CapabilitiesVirtual Communication Relationship (VCRs)
There are a total of 12 VCRs. One is permanent and 11 are fully configurable
by the host system. Sixteen link objects are available.
Network ParameterValue
Slot Time8
Maximum Response Delay2
Maximum Inactivity to Claim LAS Delay32
Minimum Inter DLPDU Delay8
Time Sync class4 (1ms)
Maximum Scheduling Overhead21
Per CLPDU PhL Overhead4
Maximum Inter-channel Signal Skew0
Required Number of Post-transmission-gab-ext Units0
Required Number of Preamble-extension Units1
Block Execution times
Analog Input = 45 ms
PID = 60 ms
Reference Manual
00809-0400-4728, Rev AA
June 2011
FOUNDATION FIELDBUS
FUNCTION BLOCKS
For reference information on the Resource, Sensor Transducer, AI, LCD
Transducer blocks refer to F
OUNDATION fieldbus Block Information on
page A-1. Reference information on the PID block can be found in the
Function Block manual document number 00809-0100-4783.
Resource Block (index number 1000)
The Resource Function Block (RB) contains diagnostic, hardware, and
electronics information. There are no linkable inputs or outputs to the
Resource Block.
Sensor Transducer Block (index number 1100)
The Sensor Transducer Function Block (STB) temperature measurement
data includes sensor and terminal temperature. The STB also includes
information about sensor type, engineering units, linearization, reranging,
damping, temperature compensation, and diagnostics.
LCD Transducer Block (index number 1200)
The LCD Transducer Block is used to configure the LCD meter.
Analog Input Block (index number 1300 and 1400)
The Analog Input Function Block (AI) processes the measurements from the
sensor 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. The AI block is widely used for scaling
functionality.
3-4
PID Block (index number 1500)
The PID Function Block combines all of the necessary logic to perform
proportional/integral/derivative (PID) control. The block su pports mode
control, signal scaling and limiting, feed forward control, override tracking,
alarm limit detection, and signal status propagation.
Page 27
Reference Manual
00809-0400-4728, Rev AA
June 2011
The block supports two forms of the PID equation: Standard and Series. You
can choose the appropriate equation using the MATHFORM parameter. The
Standard ISA PID equation is the default selection.
Resource BlockFEATURES and FEATURES_SEL
The parameters FEATURES and FEATURE_SEL determine optional
behavior of the 644.
FEATURES
The FEATURES parameter is read only and defines which features are
supported by the 644. Below is a list of the FEATURES the 644 supports.
UNICODE
All configurable string variables in the 644, except tag names, are octet
strings. Either ASCII or Unicode may be used. If the configuration device is
generating Unicode octet strings, you must set the Unicode option bit.
REPORTS
The 644 supports alert reports. The Reports option bit must be set in the
features bit string to use this feature. If it is not set, the host must poll for
alerts.
Rosemount 644
SOFT W LOCK
Inputs to the security and write lock functions include the software write
lock bits of the FEATURE_SEL parameter, the WRITE_LOCK parameter,
and the DEFINE_WRITE_LOCK parameter.
The WRITE_LOCK parameter prevents modification of parameters within
the device except to clear the WRITE_LOCK parameter. During this time,
the block will function normally updating inputs and outputs and executing
algorithms. When the WRITE_LOCK condition is cleared, a WRITE_ALM
alert is generated with a priority that correspond s to the WRITE _PRI
parameter.
The FEATURE_SEL parameter enables the user to select the software
write lock or no write lock capability. In order to enable the software write
lock, the SOFT_W_LOCK bit must be set in the FEATURE_SEL
parameter. Once this bit is set, the WRITE_LOCK parameter may be set to
“Locked” or “Unlocked.” Once the WRITE_LOCK parameter is set to
“Locked” by the software, all user requested writes as determined by the
DEFINE_WRITE_LOCK parameter shall be rejected.
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.
3-5
Page 28
Rosemount 644
Reference Manual
00809-0400-4728, Rev AA
June 2011
The following table displays all possible configurations of the
WRITE_LOCK parameter.
FEATURES_SEL is used to turn on any of the supported features. The
default setting of the 644 does not select any of these features. Choose
one of the supported features if any.
MAX_NOTIFY
The MAX_NOTIFY parameter value is the maximum number of alert reports
that the resource can have sent without getting a confirmation, corresponding
to the amount of buffer space available for alert messages. The number can
be set lower, to control alert flooding, by adjusting the LIM_NOTIFY
parameter value. If LIM_NOTIFY is set to zero, then no alerts are reported.
PlantWeb
™
Alerts
The alerts and recommended actions should be used in conjunction with
“Operation and Maintenance” on page 3-15.
The Resource Block will act as a coordinator for PlantWeb alerts. There will
be three alarm parameters (FAILED_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 HEAL TH_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.
3-6
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.
1.Electronics
2.NV Memory
3.HW / SW Incompatible
4.Primary Value
5.Secondary Value
Page 29
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
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 “Alarm Priority”
on page 3-13. 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 p arameter 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.
Below is a list of the conditions with the highest priority first.
1.Primary Value Degraded
2.Secondary Value Degraded
3.Diagnostic
4.Configuration Error
5.Calibration Error
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, “Process
Alarms” on page 3-12. 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 co ndition is
ignored, the device will eventually fail.
3-7
Page 30
Rosemount 644
Reference Manual
00809-0400-4728, Rev AA
June 2011
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.
1.NV Writes Deferred
2.SPM Process Anomaly detected
ADVISE_MASK
The ADVISE_MASK parameter wi ll 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
“Process Alarms” on page 3-12. 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 Actions for PlantWeb Alerts
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.
3-8
Page 31
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Table 3-1.
RB.RECOMMENDED_ACTION
Alarm Type
NoneNoneNo action required
Advisory
Maintenance
PlantWeb Alerts
Failed
Sensor Transducer BlockNOTE
When the engineering units of the XD_SCALE are selected, the engineering
units in the Transducer Block change to the same units. THIS IS THE ONLY
WAY TO CHANGE THE ENGINEERING UNITS IN THE SENSOR
TRANSDUCER BLOCK.
Failed/Maint/Advise
Active Event
NV Writes DeferredNon-volatile writes have been deferred, leave
Configuration ErrorRe-write the Sensor Configuration
Primary Value
Degraded
Calibration ErrorRetrim the device
Secondary Value
Degraded
Electronics FailureReplace the Device
HW / SW IncompatibleVerify the Hardware Revision is compatible with
NV Memory FailureReset the device then download the Device
Primary Value FailureVerify the instrument process is within the
Secondary Value
Failure
Recommended Action
Text String
the device powered until the advisory goes
away
Confirm the operating range of the applied
sensor and/or verify the sensor connection and
device environment
Verify the ambient temperature is within
operating limits
the Software Revision
Configuration
Sensor range and / or confirm sensor
configuration and wiring.
Verify the ambient temperature is within
operating limits
Analog Input (AI)
Function Block
Damping
The damping parameter in the Transducer Block may be used to filter
measurement noise. By increasing the damping time, the transmitter will have
a slower response time, but will decrease the amount of process noise that is
translated to the Transducer Block Primary Value. Because both the LCD and
AI Block get input from the Transducer Block, adjustin g the damping
parameter will effect both blocks.
NOTE
The AI Block has it's own filtering parameter called PV_FTIME. For simplicity,
it is better to do filtering in the Transducer Block as damp ing wi ll be ap plied to
primary value on every sensor update. If filtering is done in AI block, damping
will be applied to output every macrocycle. The LCD will display value from
Transducer 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.
The 644 measures both sensor temperature (channel 1) and terminal
temperature (channel 2).
3-9
Page 32
Rosemount 644
Reference Manual
00809-0400-4728, Rev AA
June 2011
L_TYPE
The L_TYPE parameter defines the relationship of the sensor
measurement (sensor temperature) to the desired output temperature of
the AI Block. The relationship can be direct or indir ec t.
Direct
Select direct when the desired output will be the same as the sensor
measurement (sensor temperature).
Indirect
Select indirect when the desired output is a calculated measurement
based on the sensor measurement (e.g. ohm or mV). The relationship
between the sensor measurement and the calculated measurement will be
linear.
XD_SCALE and OUT_SCALE
The XD_SCALE and OUT_SCALE each include four parameters: 0%,
100%, engineering units, and precision (decimal point). Set these based
on the L_TYPE:
L_TYPE is Direct
When the desired output is the measured variable, set the XD_SCALE to
represent the operating range of the p rocess. Set OUT_SCALE to match
XD_SCALE.
L_TYPE is Indirect
When an inferred measurement is made based on the sensor
measurement, set the XD_SCALE to represent the operating range that
the sensor will see in the process. Determine the inferred measurement
values that correspond to the XD_SCALE 0 and 100% points and set
these for the OUT_SCALE.
NOTE
T o a void configuration errors, only select Engineering Units for XD_SCALE
and OUT_SCALE that are supported by the device. The supported units
are:
Pressure (Channel 1)Temperature (Channel 2)
°C°C
°F°F
KK
RR
mVmV
When the engineering units of the XD_SCALE are selected, this causes
the engineering units of the PRIMARY_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.
3-10
Page 33
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Configuration Examples
4-wire, Pt 100 = 385
AI1 = Process Temperature
AI2 = Terminal Temperature
Transducer Block
If Host System Supports Methods:
1.Click on Methods
2.Choose Sensor Connections
3.Follow on-screen instruction.
If Host System Doesn’t Not Support Methods:
1.Put transducer block into OOS mode.
a. Go to MODE_BLK.TARGET
b. Choose OOS (0x80)
2.Go to SENSOR_CONNECTION.
a. Choose 4-wire (0x4)
3.Go to SENSOR_TYPE.
a. Choose PT100A385
4.Put the transducer block back into Auto mode.
AI Blocks (Basic Configuration)
AI1 as Process Temperature
1.Put the AI Block into OOS mode.
a. Go to MODE_BLK.TARGET
b. Choose OOS (0x80)
2.Go to CHANNEL
a. Choose Sensor 1
3.Go to L_TYPE
a. Choose Direct
4.Go to XD_Scale
a. Choose UNITS_INDEX to be °C
5.Go to OUT_SCALE
a. Choose UNITS_INDEX to be °C
b. Set the 0 and 100 scale to be the same as the
PRIMARY_VALUE_RANGE
6.Put the AI Block back into Auto mode.
7.Follow Host Procedure Download Schedule into Block.
(1)
(1) Configure a minimum of four parameters to get a value out of the AI Block.
3-11
Page 34
Rosemount 644
Reference Manual
00809-0400-4728, Rev AA
June 2011
AI2 as Terminal Temperature
1.Put the AI Block into OOS mode.
a. Go to MODE_BLK.TARGET
b. Choose OOS (0x80)
2.Go to CHANNEL
a. Choose Body Temperature
3.Go to L_TYPE
a. Choose Direct
4.Go to XD_Scale
a. Choose UNITS_INDEX to be °C
5.Go to OUT_SCALE
a. Choose UNITS_INDEX to be °C
b. Set the 0 and 100 scale to be the same as the
SECONDARY_VALUE_RANGE
6.Put the AI Block back into Auto mode.
7.Follow Host Procedure Download Schedule into Block.
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.
Process Alarms
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)
•Low (LO_LIM)
•Low low (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
3-12
Page 35
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Alarm Priority
Alarms are grouped into five levels of priority:
Priority
Number
0The alarm condition is not used.
1An alarm condition with a priority of 1 is recognized by the system, but is not
2An alarm condition with a priority of 2 is reported to the operator.
3-7Alarm conditions of prior ity 3 to 7 are advisory alarms of increasing priority.
8-15Alarm conditions of priority 8 to 15 are critical alarms of increasing priority.
Status Options
Status Options (STATUS_OPTS) supported by the AI block are shown below:
Propagate Fault Forward
If the status from the sensor is Bad, Device failure or Bad, Sensor failure,
propagate it to OUT without generating an alarm. The use of these
sub-status in OUT is determined by this option. Through this option, the
user may determine whether alarming (sending of an alert) will be done by
the block or propagated downstream for alarmin g.
Priority Description
reported to the operator.
Uncertain if Limited
Set the output status of the Analog Input block to uncertain if the measured
or calculated value is limited.
BAD if Limited
Set the output status to Bad if the sensor is violating a high or low limit.
Uncertain if Man Mode
Set the output status of the Analog Input block to uncertain if the actual
mode of the block is Man.
NOTE
The instrument must be in Out of Service mode to set the status option.
Advanced Features
The AI Function Block provides added capability through the addition of the
following parameters:
ALARM_TYPE
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
OUT_D is the discrete output of the AI 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.
3-13
Page 36
Reference Manual
00809-0400-4728, Rev AA
Rosemount 644
June 2011
LCD T ransducer BlockThe LCD meter connects directly to the 644 electronics FOUNDATION fieldbus
output 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” appears on the first line. The second
line indicates if the device or the sensor is causing the error.
Each parameter configured for display will appear on the LCD for a brief
period before the next parameter is displayed. If the s tatus of the parameter
goes bad, the LCD will also cycle diagnostics following the displayed variable.
Custom Meter Configuration
Shipped from the factory, Parameter #1 is configured to display the Primary
V ariable (temp erature) from the LCD Transducer Block. Parameters 2 – 4 are
not configured. To change the configuration of Parameter #1 or to configure
additional parameters 2 – 4, use the configuration parameters below.
The LCD Transducer Block can be configured to sequence four di fferent
process variables as long as the parameters are sourced from a function
block that is scheduled to execute within the 644 temperature transmitter. If a
function block is scheduled in the 644 that links a process variable from
another device on the segment, that process variable can be displayed on the
LCD.
DISPLAY_PARAM_SEL
The DISPLAY_PARAM_SEL parameter specifies how many process
variables will be displayed. Select up to four display parameters.
BLK_TAG_#
(1)
Enter the Block Tag of the function block that contains the parameter to be
displayed. The default function block tags from the factory are:
TRANSDUCER
AI 1300
AI 1400
PID 1500
BLK_TYPE_#
(1)
Enter the Block Type of the function block that contains the parameter to
be displayed. This parameter is generally selected via a drop-down menu
with a list of possible function block types. (e.g. Transducer, PID, AI, etc.)
PARAM_INDEX_#
(1)
The PARAM_INDEX_# parameter is generally selected via a drop-down
menu with a list of possible parameter names based upon what is
available in the function block type selected. Choose the parameter to be
displayed.
CUSTOM_TAG_#
(1)
The CUSTOM_TAG_# is an optional user-specified tag identifier that can
be configured to be displayed with the parameter in place of the block tag.
Enter a tag of up to five characters.
3-14
(1) # represents the specified parameter number.
Page 37
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
UNITS_TYPE_#
The UNITS_TYPE_# parameter is generall y selected via a drop-down
menu with three options: AUTO, CUSTOM, or NONE. Select AUTO only
when the parameter to be displayed is pressure, temperature, or percent.
For other parameters, select CUSTOM and be sure to configure the
CUSTOM_UNITS_# parameter. Select NONE if the parameter is to be
displayed without associated units.
CUSTOM_UNITS_#
Specify custom units to be displayed with the parameter. Enter up to six
characters. To display Custom Units the UNITS_TYPE_# must be set to
CUSTOM.
(1)
(1)
OPERATION AND MAINTENANCE
OverviewThis section contains information on operation and maintenance procedures.
METHODS AND MANUAL OPERATION
Each F
displaying and performing operations. 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
www.rosemount.com. There is no requirement that a host or configuration tool
support these features.
OUNDATION fieldbus host or configuration tool has different ways of
The information in this section will describe how to use methods in a general
fashion. In addition, if your host or configuration tool does not support
methods this section will cover manually configuring the parameters involved
with each method operation. For more detailed information on the use of
methods, see your host or configuration tool manual.
3-15
Page 38
Rosemount 644
Device does not
appear on segment.
Problem Identified?
Yes
No
Perform Recommended
Action, see Table 3-2.
Check Segment, see “Device
does not stay on segment” in
Table3-2 for more information.
Problem Identified?
Yes
No
Perform Recommended
Action, see page 3-6.
If the problem persists
contact your local
Rosemount representative.
PROBLEMS WITH COMMUNICATIONS
Device does not
stay on segment.
1. Check wiring to device.
2. Recycle power to device.
3. Electronic failure.
Refer to “Device does not show up on
segment” in Table 3-2 for more
information.
T roubleshooting Guides
Figure 3-1. 644 troubleshooting flowchart
Reference Manual
00809-0400-4728, Rev AA
June 2011
Table 3-2. Troubleshooting guide.
Symptom
Device does not show up on segment UnknownRecycle power to device
Device does not stay on segment
(1) The corrective actions should be done with consultation of your system integrator.
(2) Wiring and installation 31.25 kbit/s, voltage mode, wire medium application guide AG-140 available from the Fieldbus Foundation.
3-16
(1)
CauseRecommended Actions
No power to device1. Ensure the device is connected to the segment.
Incorrect signal levels.
Refer to host documentation for
procedure.
Excess noise on segment.
Refer to host documentation for
procedure.
Electronics failing1. Replace device.
Other1. Check for water around the transmitter.
2. Check voltage at terminals. There should be 9–32Vdc.
3. Check to ensure the device is drawing current. There
should be approximately 10.5 mA nominal (11 mA max.)
Refer to host documentation for procedure.
1. Check for two terminators.
2. Excess cable length.
3. Bad Power supply or conditioner
1. Check for incorrect grounding.
2. Check for correct shielded wire.
3. Tighten wire connections.
4. Check for corrosion or moisture on terminals.
5. Check for Bad power supply.
Page 39
Reference Manual
COMMUNICATIONS ESTABLISHED BUT HAVE
“BLOCK_ERR” OR AN “ALARM” CONDITION.
See “PlantWeb™ Alerts” on page 3-6
Read the following parameters in the
Resource Block to determine the
recommended action.
BLOCK_ERR (see Table 3-8)
SUMMARY_STATUS (see Table 3-9)
DETAILED_STATUS (see Table 3-10)
Problem Identified?
Yes
No
Perform Recommended
Action, see Table 3-10.
For more detailed
information
Perform the following steps in the Sensor
Transducer Block to determine the
recommended action.
BLOCK_ERR (see Table 3-3)
XD_ERR (see Table 3-4)
DETAILED_STATUS (see Table 3-5)
RECOMMENDED_ACTION (see Table 3-5)
SENSOR_DETAILED STATUS (see Table 3-5)
If error condition does not exist
in the Resource Block then it is a
configuration problem, see “AI
BLOCK_ERR Conditions.” in
Table 3-6
Problem Identified?
Yes
No
If the problem persists
contact your local
Rosemount representative.
Problem Identified?
Perform Recommended
Action, see Table 3-5.
Yes
No
Perform Recommended
Action, see Table 3-7.
Yes
No
Perform Recommended
Action, see Table 3-1.
Problem Identified?
00809-0400-4728, Rev AA
June 2011
Figure 3-2. Problems with
communications flowchart
Rosemount 644
3-17
Page 40
00809-0400-4728, Rev AA
Rosemount 644
Sensor Transducer BlockSensor 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.Set MODE_BLK.TARGET to OOS.
2.Set SENSOR_CAL_METHOD to User Trim.
3.Set CAL_UNIT to supported engineering units in the
Transducer Block.
4.Apply temperature that corresponds to the lower calib ration po int and
allow the temperature to stabilize. The temperature must be
between the range limits defined in PRIMRY_VALUE_RANGE.
5.Set values of CAL_POINT_LO to correspond to the temperature
applied by the sensor.
6.Apply temperature, temperature corresponding to the upper
calibration.
7.Allow temperature to stabilize.
8.Set CAL_POINT_HI.
Reference Manual
June 2011
NOTE
CAL_POINT_HI must be within PRIMARY_VALUE_RANGE and greater than
CAL_POINT_LO + CAL_MIN_SPAN
9.Set SENSOR_CAL_DATE to the current date.
10. Set SENSOR_CAL_WHO to the person responsible for the
calibration.
11. Set SENSOR _CAL_LOC to the calibration location.
12. Set MODE_BLK.TARGET to AUTO.
NOTE
If trim fails, the transmitter will automatically revert to factory trim.
Excessive correction or sensor failure could cause device status to read
“calibration error.” To clear this, trim the transmitter.
3-18
Page 41
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Recall Factory T rim
To recall a factory trim on the transmitter, run the Recall Factory Trim. If your
system does not support methods, manually configure the Transducer Block
parameters listed below.
1.Set MODE_BLK.TARGET to OOS.
2.Set SENSOR_CAL_METHOD to Factory Trim.
3.Set SET_FACTORY_TRIM to Recall.
4.Set SENSOR_CAL_DATE to the current date.
5.Set SENSOR_CAL_WHO to the person responsible for the
calibration.
6.Set SENSOR _CAL_LOC to the calibration location.
7.Set MODE_BLK.TARGET to AUTO.
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.
Out of Service: The actual mode is out of service.
Condition Name and Description
Electronics Failure: An electrical component failed.
I/O Failure: An I/O failure occurred.
Software Error: The software has detected an internal error.
Calibration Error: An error occurred during calibration of the device.
Algorithm Error: The algorithm used in the transducer block produced an error due to
overflow, data reasonableness failure, etc.
Diagnostics
Table 3-5 lists the potential errors and the possible corrective actions for the
given values. The corrective actions are in order of increasing system level
compromises. The first step should always be to reset the transmitter and
then if the error persists, try the steps in Table 3-5. Start with the first
corrective action and then try the second.
3-19
Page 42
Rosemount 644
Reference Manual
00809-0400-4728, Rev AA
June 2011
Table 3-5. Sensor Transducer
Block STB.SENSOR_
DETAILED_ STATUS messages
STB.SENSOR_DETAILED_STATUSDescription
Invalid ConfigurationWrong sensor connection with wrong sensor
ASIC RCV ErrorThe micro detected a chksum or start/stop bit
ASIC TX ErrorThe A/D ASIC detected a communication error
ASIC Interrupt ErrorASIC interrupts are too fast or slow
Reference ErrorReference resistors are greater than 25% of
ASIC Configuration ErrorCitadel registers were not written correctly. (Also
Sensor OpenOpen sensor detected
Sensor ShortedShorted sensor detected
Terminal Temperature FailureOpen PRT detected
Sensor Out of Operating RangeSensor readings have gone beyond
Sensor beyond operating limitsSensor readings have gone below 2% of lower
Terminal Temperature Out of Operating
Range
Terminal Temperature Beyond Operating
Limits
Sensor DegradedFor RTDs, this is excessive EMF detected. This
Sensor ErrorThe user trim has failed due to excessive
type
failure with ASIC communication
known value
CALIBRATION_ERR)
PRIMRY_VALUE_RANGE values
range or above 6% of upper range of sensor.
PRT readings have gone beyond
SECONDARY_VALUE_RANGE values
PRT readings have gone below 2% of lower
range or above 6% of upper range of PRT.
(These ranges are calculated and are not the
actual range of the PRT which is a PT100 A385)
is thermocouple degradation for thermocouples.
correction or sensor failure during the trim
method
3-20
Page 43
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Analog Input (AI)
Function Block
Status
Along with the measured or calculated PV value, every F
block passes an additional parameter called STATUS. The PV and STATUS
are passed from the Transducer Block to the Analog Input Block. The
STATUS can be one of the following: GOOD, BAD, or UNCERTAIN. When
there are no problems detected by the self-diagnostics of the block, the
ST ATUS will be GOOD. If a problem occurs with the hardware in the device or
the quality of the process variable is compromised for some reason, the
STATUS will become either BAD or UNCERTAIN depending upon the nature
of the problem. It is important that the Control Strategy that makes use of the
Analog Input Block is configured to monitor the STATUS and take action
where appropriate when the STATUS is no longer GOOD.
Simulation
Simulate replaces the channel value coming from the Sensor Transducer
Block. For testing purposes, it is possible to manually drive the output of the
Analog Input Block to a desired value. There are two ways to do this.
Manual Mode
To change only the OUT_VALUE and not the OUT_STATUS of the AI
Block, place the TARGET MODE of the block to MANUAL. Then, change
the OUT_VALUE to the desired value.
Simulate
1.If the SIMULATE switch is in the OFF position, move it to the ON
position. If the SIMULATE jumper is already in the ON position, you
must move it to off and place it back in the ON position.
OUNDATION fieldbus
NOTE
As a safety measure, the switch must be reset every time power is
interrupted to the device in order to enable SIMULATE. This prevents a
device that is tested on the bench from getting insta lled in the process with
SIMULATE still active.
2.To change both the OUT_VALUE and OUT_STATUS of the AI Block,
set the TARGET MODE to AUTO.
3.Set SIMULATE_ENABLE_DISABLE to ‘Active.’
4.Enter the desired SIMULATE_VALUE to change the OUT_VALUE
and SIMULATE_STATUS_QUALITY to change the OUT_STATUS.
If errors occur when performing the above steps, be sure that the
SIMULATE jumper has been reset after powering up the device.
3-21
Page 44
Rosemount 644
Table 3-6. AI BLOCK_ERR
Conditions.
Condition
Number
0Other
1Block Configuration Error: the selected channel carries a measurement that
3Simulate Active: Simulation is enabled and the block is using a simulated
7Input Failure/Process Variable has Bad Status: The hardware is bad, or a
14Power Up
15Out of Service: The actual mode is out of service.
Table 3-7. Troubleshooting the
AI block
SymptomPossible CausesRecommended Actions
BLOCK_ERR reads OUT OF
SERVICE (OOS)
BLOCK_ERR reads
CONFIGURATION ERROR
Bad or no temperature readings
(Read the AI “BLOCK_ERR”
parameter)
OUT parameter status reads
UNCERTAIN and substatus reads
EngUnitRangViolation.
BLOCK_ERR reads POWERUPDownload Schedule into block. Refer to host for downloading
BLOCK_ERR reads BAD INPUT1. Sensor Transducer Block Out Of Service (OOS)
No BLOCK_ERR but readings are
not correct. If using Indirect mode,
scaling could be wrong.
No BLOCK_ERR. Sensor needs to
be calibrated or Zero trimmed.
Out_ScaleEU_0 and EU_100
settings are incorrect.
Condition Name and Description
is incompatible with the engineering units selected in XD_SCALE, the L_TYPE
parameter is not configured, or CHANNEL = zero.
value in its execution.
bad status is being simulated.
1. AI Block target mode target mode set to OOS.
2. Resource Block OUT OF SERVICE.
1. Check CHANNEL parameter (see “CHANNEL” on page 3-9)
2. Check L_TYPE parameter (see “L_TYPE” on page 3-10)
3. Check XD_SCALE engineering units. (see “XD_SCALE and
OUT_SCALE” on page 2-10
procedure.
2. Resource Block Out of Service (OOS)
1. Check XD_SCALE parameter.
2. Check OUT_SCALE parameter.
(see “XD_SCALE and OUT_SCALE” on page 3-10)
See Section 3: Operation and Maintenance to determine the
appropriate trimming or calibration procedure.
See “XD_SCALE and OUT_SCALE” on page 3-10.
Reference Manual
00809-0400-4728, Rev AA
June 2011
3-22
Page 45
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Resource BlockThis section describes error conditions found in the Resource block. Read
Ta ble 3 -8 thr oug h Table 3-10 to deter min e th e ap p ro pr iat e cor re c t ive actio n.
Table 3-8 lists conditions reported in the BLOCK_ERR parameter.
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.
Out of Service: The actual mode is out of service.
Condition Name
No repair needed
Repairable
Call Service Center
RB.DETAILED_STATUSDescription
Sensor Transducer block error.Active when any SENSOR_DETAILED_STAUS bit is on.
Manufacturing Block integrity errorThe manufacturing block size, revision, or checksum is
wrong.
Hardware/software incompatibleVerify the manufacturing block revision and the hardware
revision are correct/compatible with the software
revision.
Non-volatile memory integrity errorInvalid checksum on a block of NV data.
ROM integrity errorInvalid application code checksum.
Lost deferred NV dataDevice has been power-cycled while non-volatile writes
were being deferred to prevent premature memory
failure, the write operations have been deferred.
NV Writes DeferredA high number of writes has been detected to
non-volatile memory. To prevent premature failure, the
write operations have been deferred.
3-23
Page 46
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
LCD Transducer blockThis section describes error conditions found in the LCD Transducer Block.
Read Table 3-11 and to determine the appropriate corrective action.
Self Test Procedure for the LCD
The SELF_TEST parameter in the Resource block will test LCD 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 document ation on
how to run the “Self Test” method. If your host system does not support
methods, then you can run this test manually be following the steps below.
1.Put Resource block into “OOS” (Out of Service).
2.Go to the parameter called “SELF_TEST” and write the value Self
test (0x2).
3.Observe the LCD screen when you are doing this. All of the segments
should light up.
User-selectable; sensor terminals rated to 42.4 Vdc. See “Acc ur acy” on
page A-6 for sensor options.
Output
Single 2-wired device with a completely digital output with F
fieldbus communication (ITK 5.1 compliant).
Rosemount 644
OUNDATION
Isolation
Input/output isolation tested to 500 Vdc/ac rms (707 Vdc) at 50/60 Hz
Local Display
The optional five-digit integral LCD Display includes a floating or fixed decimal
point. It can also display engineering units (°F, °C, °R, K, , and millivolts),
milliampere, and percent of span. The display can be configured to alternate
between selected display options. Display settings are preconfigured at the
factory according to the standard transmitter configuration. They ca n be
reconfigured in the field using F
Humidity Limits
0–99% relative humidity
Update Time
0.5 seconds
Accuracy
FOUNDATION fieldbus: ±0.15 °C
(default configuration) PT 100
OUNDATION fieldbus communications.
www.rosemount.com
Page 48
Rosemount 644
Physical Electrical Connections
ModelPower and Sensor Terminals
644HCompression screws permanently fixed to terminal block
WAGO® Spring clamp terminals are optional (option code G5)
Materials of Constructions (Stainless Steel Housing for Biotechnology,
Pharmaceutical Industries, and Sanitary Applications)
Housing and Standard Meter Cover
• 316 SST
Cover O-Ring
• Buna-N
Reference Manual
00809-0400-4728, Rev AA
June 2011
Mounting
The 644R attaches directly to a wall or a DIN rail. The 644H installs in a
connection head or universal head mounted directly on a sensor assembly,
apart from a sensor assembly using a univer sal head, or to a DIN ra il using an
optional mounting clip.
Weight
CodeOptionsWeight
644HHead Mount Transmitter92 g (3.25 oz)
M5LCD Display38 g (1.34 oz)
J5, J6Universal Head, Standard Cover577 g (20.35 oz)
J5, J6Universal Head, Meter Cover667 g (23.53 oz)
Weight (Stainless Steel Housing for Biotechnology, Pharmaceutical
Industries, and Sanitary Applications)
Option Code Standard CoverMeter Cover
S1840 g (27 oz)995 g (32 oz)
S2840 g (27 oz)995 g (32 oz)
S3840 g (27 oz)995 g (32 oz)
S4840 g (27 oz)995 g (32 oz)
Enclosure Ratings (644H)
All option codes (S1, S2, S3, S4, J5 and J6, J7 and J8) are NEMA 4X, IP66,
and IP68. Option code J6 is CSA Enclosure Type 4X.
A-2
Sanitary Housing Surface
Surface finish is polished to 32 RMA. Laser etched product marking on
housing and standard covers.
Page 49
Reference Manual
2-wire
RTD and
3-wire RTD
and
4-wire RTD
and
T/C
and mV
*
1234
12 34
1234
1234
00809-0400-4728, Rev AA
June 2011
Performance EMC (ElectroMagnetic Compatibility)
NAMUR NE 21 Standard
The 644H HART meets the requirements for NAMUR NE 21 Rating.
CE Mark
The 644 is compliant with Directive 2004/108/EC. Meets the criteria under
IEC 61326:2006.
Power Supply Effect
Less than ±0.005% of span per volt
Stability
RTDs and thermocouples have a st abili ty of ±0 .15% of output reading or 0.15
°C (whichever is greater) for 24 months.
Self Calibration
The analog-to-digital measurement circuitry automatically self-calibrates for
each temperature update by comparing the dynamic measurement to
extremely stable and accurate internal reference elements
Rosemount 644
Vibration Effect
The 644 is tested to the following specifications with no effe ct on performance
per IEC 60770-1, 1999:
FrequencyVibration
10 to 60 Hz0.21 mm displacement
60 to 2000 Hz3 g peak acceleration
Sensor Connections
644244EH Sensor Connections Diagram
* Rosemount Inc. provides 4-wire sensors for all single element RTDs. Y ou can use these RTDsin3-wire
configurations by leaving the unneeded leads disconnected and insulated withelectrical tape.
A-3
Page 50
Rosemount 644
Lower
Specification
Limit
Upper
Specification
Limit
Typical Accuracy
3144-GRAPH
–3 –2 –1123
Rosemount Conformance to Specifications
A Rosemount product not only meets its published specifications, but most likely exceeds
them. Advanced manufacturing techniques and the use of Statistical Process Control provide
specification conformance to at least ± 3
ensures that product design, reliability, and performance will improve annually.
For example, the Reference Accuracy distribution for the 644 is shown to the right. Our
Specification Limits are ± 0.15 °C, but, as the shaded area shows, approximately 68% of the
units perform three times better than the limits. Therefore, it is very likely that you will receive
a device that performs much better than our published specifications.
(1)
. Our commitment to continual improvement
Reference Manual
00809-0400-4728, Rev AA
June 2011
Conversely, a vendor who “grades” product without using Process Control, or who is not
committed to ± 3 performance, will ship a higher percentage of units that are barely within
advertised specification limits.
(1) Sigma () is a statistical symbol to designate the standard deviation from the mean value of a normal distribution.
FOUNDATION FIELDBUS
SPECIFICATIONS
Function Blocks
Resource Block
Accuracy distribution shown is for the 644, Pt
100 RTD sensor, Range 0 to 100 °C
• The resource block contains physical transmitter information including
available memory, manufacture identification, device type, software tag,
and unique identification.
Transducer Bloc k
• The transducer block contains the actual temperature measurement data,
including sensor 1 and terminal temperature. It includes information ab out
sensor type and configuration, engineering units, linearization, reranging,
damping, temperature correct ion , an d dia g no stics.
LCD Block
• The LCD block is used to configure the local display, if an LCD Display is
being used.
Analog Input (AI)
• Processes the measurement and makes it available on the fieldbus
segment.
• Allows filtering, alarming, and engineering unit changes.
PID Block
• The transmitter provides control functionality with one PID function block in
the transmitter. The PID block can be used to perform single loop,
cascade, or feedforward control in the field.
Instantiable Function Blocks
• All the function blocks used by the transmitter are instantiable, meaning
the total number of function blocks is only limited by the physical memory
available in the transmitter. Since only the instantiable blocks can use
physical memory, any combination of function blocks can be used at any
given time as long as the physical memory size is not violated.
A-4
BlockExecution Time (milliseconds)
Resource–
Transducer–
LCD Block–
Analog Input 145
Analog Input 245
PID 1 60
Page 51
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Turn-on Time
Performance within specifications in less than 20 seconds after power is
applied, when damping value is set to 0 seconds.
Status
If self-diagnostics detect a sensor burnout or a transmitter failure, the st atus of
the measurement will be updated accordingly. Status may also send the PID
output to a safe value.
Power Supply
Powered over F
The transmitter operates between 9.0 and 32.0 Vdc, 11 mA maximum. The
power terminals are rated to 42.4 Vdc max.
Alarms
The AI function block allows 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 permanent control for the H1
segment.
OUNDATION fieldbus with standard fieldbus power supplies.
field. Users will be able to take advantage of software enhancements by
loading new application software into the device memory.
A-5
Page 52
Reference Manual
00809-0400-4728, Rev AA
(2)
June 2011
D/A
Accuracy
Rosemount 644
Accuracy
Table A-1. Rosemount 644 Input Options and Accuracy
Sensor
Options
2-, 3-, 4-wire RTDs°C°F°C°F°C°F
Pt 100 ( = 0.00385)IEC 751–200 to 850–328 to 15621018± 0.15± 0.27±0.03% of span
Pt 200 ( = 0.00385)IEC 751–200 to 850–328 to 15621018± 0.15 ± 0.27 ±0.03% of span
Pt 500 ( = 0.00385)IEC 751–200 to 850–328 to 15621018± 0.19± 0.34±0.03% of span
Pt 1000 ( = 0.00385)IEC 751–200 to 300–328 to 5721018± 0.19± 0.34±0.03% of span
Pt 100 ( = 0.003916)JIS 1604–200 to 645–328 to 11931018± 0.15± 0.27±0.03% of span
Pt 200 ( = 0.003916)JIS 1604–200 to 645–328 to 11931018± 0.27± 0.49±0.03% of span
Ni 120Edison Curve No. 7–70 to 300–94 to 5721018± 0.15± 0.27 ±0.03% of span
Cu 10Edison Copper Winding No. 15–50 to 250–58 to 4821018±1.40± 2.52±0.03% of span
Pt 50 ( = 0.00391)GOST 6651-94–200 to 550–328 to 10221018± 0.30± 0.54±0.03% of span
Pt 100 ( = 0.00391)GOST 6651-94–200 to 550–328 to 10221018± 0.15± 0.27±0.03% of span
Cu 50 ( = 0.00426)GOST 6651-94–50 to 200–58 to 3921018±1.34± 2.41±0.03% of span
Cu 50 ( = 0.00428)GOST 6651-94–185 to 200–301 to 3921018±1.34± 2.41±0.03% of span
Cu 100 ( = 0.00426)GOST 6651-94–50 to 200–58 to 3921018±0.67± 1.20±0.03% of span
Cu 100 ( = 0.00428)GOST 6651-94–185 to 200–301 to 3921018±0.67± 1.20±0.03% of span
Thermocouples
(5)
Type B
(4)
NIST Monograph 175, IEC 584100 to 1820212 to 33082545± 0.77± 1.39±0.03% of span
Type ENIST Monograph 175, IEC 584–50 to 1000–58 to 18322545± 0.20± 0.36±0.03% of span
Type JNIST Monograph 175, IEC 584–180 to 760–292 to 14002545± 0.35± 0.63±0.03% of span
(6)
Type K
NIST Monograph 175, IEC 584 –180 to 1372–292 to 25012545± 0.50± 0.90 ±0.03% of span
Type NNIST Monograph 175, IEC 584 –200 to 1300 –328 to 23722545± 0.50± 0.90±0.03% of span
Type RNIST Monograph 175, IEC 5840 to 176832 to 32142545± 0.75± 1.35±0.03% of span
Type SNIST Monograph 175, IEC 5840 to 176832 to 32142545± 0.70± 1.26±0.03% of span
Type TNIST Monograph 175, IEC 584–200 to 400–328 to 7522545± 0.35± 0.63±0.03% of span
DIN Type LDIN 43710–200 to 900–328 to 16522545± 0.35± 0.63±0.03% of span
DIN Type UDIN 43710–200 to 900–328 to 11122545± 0.35± 0.63±0.03% of span
Type W5Re/W26ReASTM E 988-960 to 200032 to 36322545± 0.70± 1.26±0.03% of span
GOST Type LGOST R 8.585-2001–200 to 800–328 to 14722545± 1.00± 1.26±0.03% of span
Other Input Types
Millivolt Input–10 to 100 mV±0.015 mV±0.03% of span
2-, 3-, 4-wire Ohm Input0 to 2000 ohms±0.45 ohm±0.03% of span
(1) No minimum or maximum span restrictions within the input ranges. Recommended minimum span will hold noise within accuracy specification with da mping at
zero seconds.
(2) The published digital accuracy applies over the entire sensor input range. Digit al output ca n be accessed by HART or F
Rosemount control system.
(3) Total Analog accuracy is the sum of digital and D/A accuracies. This is not applicable for F
(4) Total digital accuracy for thermocouple measurement: sum of digital accuracy +0.5 °C. (cold junction accuracy).
(5) Digital accuracy for NIST Type B T/C is ±3.0 °C (±5.4 °F) from 100 to 300 °C (212 to 572 °F).
(6) Digital accuracy for NIST Type K T/C is ±0.70 °C (±1.26 °F) from –180 to –90 °C (–292 to –130 °F).
Sensor
Reference
Input
Ranges
Recommended
Min. Span
OUNDATION fieldbus.
(1)
Digital
Accuracy
OUNDATION fieldbus Communications or
(3)
Accuracy Example
When using a Pt 100 ( = 0.00385) sensor input:
• Total accuracy = ±0.15 °C.
• No D/A accuracy effects apply
A-6
Page 53
Reference Manual
00809-0400-4728, Rev AA
June 2011
Ambient Temperature Effect
Table A-2. Ambient Temperature Effect
Temperature Effects per 1.0 °C
Input Range
Sensor OptionsSensor Reference
2-, 3-, 4-wire RTDs
Pt 100 ( = 0.00385)IEC 751-200 to 8500.003 °C (0.0054 °F)Entire Sensor Input Range0.001% of span
Pt 200 ( = 0.00385)IEC 751-200 to 8500.004 °C (0.0072 °F)Entire Sensor Input Range0.001% of span
Pt 500 ( = 0.00385)IEC 751-200 to 8500.003 °C (0.0054 °F)Entire Sensor Input Range0.001% of span
Pt 1000 ( = 0.00385)IEC 751-200 to 3000.003 °C (0.0054 °F)Entire Sensor Input Range 0.001% of span
Pt 100 ( = 0.003916)JIS 1604-200 to 6450.003 °C (0.0054 °F)Entire Sensor Input Range0.001% of span
Pt 200 ( = 0.003916)JIS 1604-200 to 6450.004 °C (0.0072 °F)Entire Sensor Input Range0.001% of span
Ni 120Edison Curve No. 7-70 to 3000.003 °C (0.0054 °F)Entire Sensor Input Range0.001% of span
Cu 10Edison Copper
Pt 50 ( = 0.00391)GOST 6651-94-200 to 5500.004 °C (0.0072 °F)Entire Sensor Input Range0.001% of span
Pt 100 ( = 0.00391)GOST 6651-94-200 to 5500.003 °C (0.0054 °F)Entire Sensor Input Range0.001% of span
Cu 50 ( = 0.00426)GOST 6651-94-50 to 2000.008 °C (0.0144 °F)Entire Sensor Input Range 0.001% of span
Cu 50 ( = 0.00428)GOST 6651-94-185 to 2000.008 °C (0.0144 °F)Entire Sensor Input Range 0.001% of span
Cu 100 ( = 0.00426)GOST 6651-94-50 to 2000.004 °C (0.0072 °F)Entire Sensor Input Range0.001% of span
Cu 100 ( = 0.00428)GOST 6651-94-185 to 2000.004 °C (0.0072 °F)Entire Sensor Input Range 0.001% of span
Thermocouples
Type B
Type E
Type J
Type K
Type N
Type R
Type S
Type T
DIN Type LDIN 43710-200 to 900
DIN Type UDIN 43710-200 to 900
Type W5Re/W26ReASTM E 988-960 to 2000
GOST Type LGOST R 8.585-2001-200 to 800
Winding No. 15
NIST Monograph 175,
IEC 584
NIST Monograph 175,
IEC 584
NIST Monograph 175,
IEC 584
NIST Monograph 175,
IEC 584
NIST Monograph 175,
IEC 584
NIST Monograph 175,
IEC 584
NIST Monograph 175,
IEC 584
NIST Monograph 175,
IEC 584
(°C)
-50 to 2500.03 °C (0.054 °F)Entire Sensor Input Range0.001% of span
100 to 1820
-50 to 1000
-180 to 760
-180 to 1372
-200 to 1300
0 to 1768
0 to 1768
-200 to 400
(1.8 °F) Change in Ambient
Temperature
0.014 °CT 1000 °C0.001% of span
0.032 °C – (0.0025% of (T –
300))
0.054 °C – (0.011% of (T – 100)) 100 °C T < 300 °C0.001% of span
0.005 °C + (0.0043% of T)All0.001% of span
0.0054 °C + (0.00029%of T)T 0 °C0.001% of span
0.0054 °C + (0.0025% of
absolute value T)
0.0061 °C + (0.0054% of T)T 0 °C0.001% of span
0.0061 °C + (0.0025% of
absolute value T)
0.0068 °C + (0.00036% of T)All0.001% of span
0.016 °CT 200 °C0.001% of span
0.023 °C – (0.0036% of T)T < 200 °C0.001% of span
0.016 °CT 200 °C0.001% of span
0.023 °C – (0.0036% of T)T < 200 °C0.001% of span
0.0064 °CT 0 °C0.001% of span
0.0064 °C +(0.0043% of
absolute value T)
0.0054 °C + (0.00029% of T)T 0 °C0.001% of span
0.0054 °C + (0.0025% of
absolute value T)
0.0064 °CT 0 °C0.001% of span
0.0064 °C + (0.0043% of
absolute value T)
0.016 °CT 200 °C0.001% of span
0.023 °C – (0.0036% of T)T < 200 °C0.001% of span
0.007 °CT 0 °C0.001% of span
0.007 °C – (0.003% of absolute
value T)
(1)
Rosemount 644
RangeD/A Effect
300 °C T < 1000 °C0.001% of span
T < 0 °C0.001% of span
T < 0 °C0.001% of span
T < 0 °C0.001% of span
T < 0 °C0.001% of span
T < 0 °C0.001% of span
T < 0 °C0.001% of span
(2)
A-7
Page 54
Reference Manual
0.1520.03
2
+0.153 C=
00809-0400-4728, Rev AA
Rosemount 644
Table A-2. Ambient Temperature Effect
Temperature Effects per 1.0 °C
Input Range
Sensor OptionsSensor Reference
Other Input Types
Millivolt Input-10 to 100 mV 0.0005 mVEntire Sensor Input Range0.001% of span
2-, 3-, 4-wire Ohm0 to 2000 0.0084 Entire Sensor Input Range0.001% of span
(1) Change in ambient is with reference to the calibration temperature of the transmitter 68 °F (20 °C) from factory.
(2) Does not apply to F
OUNDATION fieldbus.
(°C)
Transmitters can be installed in locations where the ambient temperature is between –40 and 85 °C (–40 and 185
°F). In order to maintain excellent accuracy performance, each transmitter is individually characterized over this
ambient temperature range at the factory.
Temperature Effects Examples
When using a Pt 100 ( = 0.00385) sensor input at 30 °C span at 30 °C ambient temperature:
• Digital Temperature Effects: 0.003 °C x (30 - 20) = 0.03 °C
• D/A Effects: No D/A effects apply
• Worst Case Error: Digital + Digit al Temperature Effects = 0.15 °C + 0.03 °C = 0.18 °C
• Total Probable Error:
(1.8 °F) Change in Ambient
Temperature
(1)
RangeD/A Effect
June 2011
(2)
A-8
Page 55
Reference Manual
Simulation Switch
Standard
Sensor
Terminals
Communication
Terminals
60 (2.4)
33
(1.3)
Power
Terminals
33 (1.30)
24 (1.0)
Meter
Connector
33
(1.3)
60 (2.4)
34 (1.33)
WAGO Spring
Clamp Sensor
Terminals
24 (1.0)
Communication
Terminals
Simulation Switch
Meter
Connector
Power
Terminals
95 (3.74)
96 (3.76)
112 (4.41)
Meter Cover
316 SST “U”
Bolt Mounting,
2-inch Pipe
75
(2.93)
Label
Standard
Cover
LCD
Display
103 (4.03) with LCD
Display
78 (3.07)
128 (5.04)
with LCD
Display
100
(3.93)
104
(4.09)
00809-0400-4728, Rev AA
June 2011
DIMENSIONAL DRAWINGS
Rosemount 644
644H (DIN A Head Mount)
Shown with Standard Compression Screw Terminals
Threaded-Sensor Universal Head
(Option code J5 or J6)
Shown with WAGO® Spring Clamp Terminals
Integral DIN Style Sensor
Connection Head
Note: A “U” Bolt is shipped with each universal head unless assembly
option X1, X2, or X3 is ordere d. Since thehead is integ rally moun ted to the
sensor, it may not need to be used.
Dimensions are in millimeters (inches)
Note: The DIN Style Integral sensor connecti on head is only available
through Volume 2 of the Rosemount Temperature Sensors and
Accessories Product Data Sheet (doc ument number 00810-0101-2654).
A-9
Page 56
Rosemount 644
644H
Captive Mounting
Screws and Springs
Meter Spacer
LCD Display
10 pin Connector
Transmitter
Mounting
Hardware
Rail Clip
Transmitter
Mounting
Hardware
Rail Clip
G-Rail
Grooves
Top Hat Rail
Grooves
Screw Holes
for Mounting
to a Wall
Kit includes replacement
bracket and screws.
Existing Threaded Sensor
Connection Head
(former option code L1)
G-Rail (asymmetric)Top Hat Rail (symmetric)
Reference Manual
00809-0400-4728, Rev AA
June 2011
LCD Display
Head Mount Transmitter
Mounting
Universal Clip for Mounting to a Wall or a Rail
(part number 03044-4103-0001)
Note: Kit (part number 00644-5301-0010) includes mounting
hardware and both types of rail kits.
A-10
644H Retrofit Kit
Note: Kit (part number 00644-5321-0010) includes a new mounting
bracket and the hardware necessary to facilitate the installation.
Page 57
Reference Manual
79.8 (3.14)
70.0 (2.76)
33 (1.3)
76.2 (3.0)
24.4
(0.96)
25.4 (1.0)
44.5 (1.75)
27.9 (1.1)
Standard Cover
Housing
O-Ring
70.0 (2.76)
33 (1.3)
76.2 (3.0)
47 (1.85)
61 (2.4)
25.4 (1.0)
44.5 (1.75)
27.9 (1.1)
74.4 (2.93)
LCD Display Cover
Housing
O-Ring
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Sanitary Housing Covers
Standard Cover
LCD Display Cover
Dimensions are in millimeters (inches)
A-11
Page 58
Reference Manual
00809-0400-4728, Rev AA
Rosemount 644
June 2011
ORDERING INFORMATION
Table A-3. Rosemount 644 Smart Temperature Transmitter Ordering Information
★ The Standard offering represents the most common models and options. These options should be selected for best delivery.
__The Expanded offering is manufactured after receipt of order and is subject to additional delivery lead time.
● = Available
– = Not Available
ModelProduct Description
644Temperature Transmitter
Transmitter Type
StandardStandard
HDIN A Head Mount (suitable for mounting in the field with enclosure options below)
RRail Mount★
Output
HeadRail
StandardStandard
A4–20 mA with digital signal based on HART protocol
FFOUNDATION fieldbus digital signal (includes 2 AI function blocks and Backup Link
●●
●
–★
Active Scheduler)
WProfibus PA digital signal
●
–★
Product Certifications
Hazardous Locations Certificates (consult factory for availability)
AFWA
StandardStandard
NANo approval
(1)
E5
I5
K5
(2)
FM Explosion–Proof
FM Intrinsically Safe
(2)(1)
FM Intrinsically Safe, Explosion-Proof Combination
KCFM/CSA Intrinsically Safe and Non-incendive Approval
IECEx Flameproof and Dust
IECEx Intrinsically Safe
(1)
IECEx Type n
NGIECEx Type n Component
(1)
E2
E4
E3
INMETRO Flameproof
(1)(3)
TIIS Explosion–Proof
(1)
China Flameproof
I3China Intrinsic Safety
●●●●
●●●–
●●●●
●●●–
–––●
●●●–
●●●–
●●●–
●●●●
●●●–
●●●●
●●●–
●●●–
●●●●
●●●–
●●●●
●●●–
●●●●
●●●–
●●●–
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
Options
AFWA
PlantWeb Control Functionality
StandardStandard
A01FOUNDATION fieldbus Advanced Control Function Block Suite
A-12
–●––
★
Page 59
Reference Manual
00809-0400-4728, Rev AA
June 2011
Table A-3. Rosemount 644 Smart Temperature Transmitter Ordering Information
★ The Standard offering represents the most common models and options. These options should be selected for best delivery.
__The Expanded offering is manufactured after receipt of order and is subject to additional delivery lead time.
● = Available
– = Not Available
Assemble To Options
StandardStandard
XASensor Specified Separately and Assembled To Transmitter
Enclosure Options
StandardStandard
(4)(5)
J5
J6
J7
J8
Expanded
S1Connection Head, Polished Stainless Steel (1/2–14 NPT entries)
S2Connection Head, Polished Stainless Steel (1/2–14 NPSM entries)
S3Connection Head, Polished Stainless Steel (M20 x 1.5 conduit and entries)
S4Connection Head, Polished Stainless Steel (M20 x 1.5 conduit entries, M24 x 1.5
Display
StandardStandard
M5LCD Display
Expanded
M6LCD Display with Polycarbonate Meter Face
Software Configuration
StandardStandard
C1Custom Configuration of Date, Descriptor and Message (Requires CDS with order)
Alarm Level Configuration
StandardStandard
A1NAMUR alarm and saturation levels, high alarm
CNNAMUR alarm and saturation levels, low alarm
C8Low Alarm (Standard Rosemount Alarm and Saturation Values)
Line Filter
StandardStandard
F660 Hz Line Voltage Filter
Sensor Trim
StandardStandard
C2Transmitter-Sensor Matching - Trim to Specific Rosemount RTD Calibration
5-Point Calibration Option
StandardStandard
C45-point calibration. Use option code Q4 to generate a calibration certificate
Calibration Certificate
StandardStandard
Q4Calibration certificate. 3-Point calibration with certificate
External Ground
StandardStandard
G1External ground lug assembly (see “External Ground Screw Assembly” on
Universal Head (junction box), aluminum alloy with 50.8 mm (2-in.) SST pipe bracket
(M20 entries)
(4)
Universal Head (junction box), aluminum alloy with 50.8 mm (2-in.) SST pipe bracket
1
(
(4)(5)
/2–14 NPT entries)
Universal Head (junction box), cast SST with 50.8 mm (2-in.) SST pipe bracket (M20
entries)
(4)
Universal Head (junction box), cast SST with 50.8 mm (2-in.) SST pipe bracket (1/2–
14 NPT entries)
head entry)
Schedule (CVD constants)
page A-15)
Rosemount 644
●●●–
HeadRail
AFWA
●●●–
●●●–
●●●–
●●●–
●●●–
●●●–
●●●–
●●●–
●●●–
●●●–
●●●●
●––●
●––●
●––●
●●●●
●●●●
●●●●
●●●●
●●
●
–
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
A-13
Page 60
Reference Manual
00809-0400-4728, Rev AA
Rosemount 644
Table A-3. Rosemount 644 Smart Temperature Transmitter Ordering Information
★ The Standard offering represents the most common models and options. These options should be selected for best delivery.
__The Expanded offering is manufactured after receipt of order and is subject to additional delivery lead time.
● = Available
– = Not Available
Cable Gland Option
StandardStandard
G2Cable gland
G7Cable gland, M20x1.5, Ex e, Blue Polyamide (5 mm - 9 mm)
Cover Chain Option
StandardStandard
G3Cover chain
Terminal
StandardStandard
G5WAGO spring clamp terminals
Conduit Electrical Connector
StandardStandard
(7)
GE
GM
M12, 4-pin, Male Connector (eurofast®)
(7)
A size Mini, 4-pin, Male Connector (minifast®)
External Label
StandardStandard
ELExternal label for ATEX Intrinsic Safety
Typical Rail Mount Model Number: 644 R A I5
Typical Head Mount Model Number: 644 H F I5 M5 J5 C1
(1) Requires enclosure option J5, J6, J7, or J8.
(2) When IS approval is ordered on a F
(3) Consult factory for availability.
(4) Suitable for remote mount configuration.
(5) When ordered with XA,
(6) Only available with Enclosure option code J5.
(7) Available with Intrinsically Safe approvals only . For FM Intrinsicall y Safe or non-in cendive approval ( option code I5 ), inst all in accordance wit h Rosemount
drawing 03151-1009 to maintain NEMA 4X rating.
(6)
(7.5 mm - 11.99 mm)
OUNDATION fieldbus, both standard IS and FISCO IS app rovals apply. The device label is marked appropriately.
1
/2-in. NPT enclosure will come equipped with an M20 adapter with the se nsor installed as process ready.
●●
●●
●●
●●–
●●
●●
●●
●
●
●
●
●
●
–
–
–
–
–
–
June 2011
★
★
★
★
★
★
★
NOTE
For additional options (e.g. “K” codes), please contact your local Emerson Process Management representative.
TaggingHardware
• 13 characters total
• Tags are adhesive labels
• Permanently attached to transmitter
1
• Character height is
/16-in (1.6 mm)
Software
• The transmitter can store up to 13 characters for FOUNDATION fieldbus and Profibus PA. If no
characters are specified, the first 8 characters of the hardware tag are the default.
ConsiderationsSpecial Mounting Considerations
See “Mounting” on page A-10 for the special hardware that is available to:
• Mount a 644H to a DIN rail. (see Table 1 on page A-15)
• Retrofit a new 644H to replace an existing 644H transmitter in an existing threaded sensor
connection head (see Table 1 on pageA-15).
A-14
Page 61
Reference Manual
00809-0400-4728, Rev AA
June 2011
External Ground Screw Assembly
The external ground screw assembly can be ordered by specifying code G1 when an enclosure is
specified. However, some approvals include the ground screw assembly in the transmitter
shipment, hence it is not necessary to order code G1. The table below identifies which approval
options include the external ground screw assembly and which do not.
Aluminum alloy Universal Head, standard cover—M20 entries
Aluminum alloy Universal Head, meter cover—M20 entries
Aluminum alloy Universal Head, standard cover—1/2-14 NPT entries
Aluminum alloy Universal Head, meter cover—1/2-14 NPT entries
LCD Display (includes meter and meter spacer assembly)
LCD Display kit (includes meter and meter spacer assembly, and meter cover)
Ground screw assembly kit
Kit, Hardware for mounting a 644H to a DIN rail (includes clips for symmetrical and asymmetrical rails)
Kit, Hardware for retrofitting a 644H in an existing threaded sensor connection head (former option code L1)
Kit, 316 U-Bolt for Universal Housing
Universal clip for rail or wall mount
24 Inches of symmetric (top hat) rail
24 Inches of asymmetric (G) Rail
Ground clamp for symmetric or asymmetric rail
End clamp for symmetric or asymmetric rail
Snap rings kit (used for assembly to a DIN sensor – quantity 12)
SST Universal Head, standard cover—M20 entries
SST Universal Head, meter cover—M20 entries
SST Universal Head, standard cover—1/2 -14 NPT entries
SST Universal Head, meter cover—1/2-14 NPT entries
Polished SST Connection Head, standard cover—1/2-14 NPT entries
Polished SST Connection Head, meter cover—1/2-14 NPT entries
Polished SST Connection Head, standard cover—1/2-14 NPSM entries
Polished SST Connection Head, meter cover—1/2-14 NPSM entries
Polished SST Connection Head, standard cover—M20 x 1.5 entries
Polished SST Connection Head, meter cover—M20 x 1.5 entries
Polished SST Connection Head, standard cover—M20 x 1.5 / M24 x 1.5 entries
Polished SST Connection Head, meter cover—M20 x 1.5 / M24 x 1.5 entries
The transmitter is available with standard configuration settin g for
F
OUNDATION fieldbus (see “Custom configurations are to be specified when
ordering. This configuration must be the same for all sensors. The following
table lists the necessary requirements to specify a custo m configuration.”).
The configuration settings and block configuration may be changed in th e field
with DeltaV
configuration tool.
®
, with AMS, or other FOUNDATION fieldbus host or
A-15
Page 62
Rosemount 644
T
1
T
b
Note:
T
1
= Sensor Temperature
T
b
= Terminal Temperature
AI 1300
AI 1400
Reference Manual
00809-0400-4728, Rev AA
June 2011
Standard FOUNDATION fieldbus Configuration
Unless otherwise specified, the transmitter will be shipped as follows for all
sensors:
Sensor Type: 4-wire Pt 100 ( = 0.00385) RTD
Damping: 5 seconds
Units of Measurement: °C
Line Voltage Filter: 50 Hz
Software Tag: See “Tagging” on page A-14
Function Blocks Tags:
• Resource Block: RB
• Transducer Block: TB
• LCD Block: LCD
• Analog Input Blocks: AI1, AI2
Alarm Range: 0
Alarm Limits of AI1 and AI2:
• HI-HI: 100 °C (212 °F)
• HI: 95 °C (203 °F)
• LO: 5 °C (41 °F)
• LO-LO: 0 °C (32 °F)
Local Display (when installed): Engineering Units of Temperature
Custom Configuration
Custom configurations are to be specified when ordering. This configuration
must be the same for all sensors. The following table lists the necessary
requirements to specify a custom configuration.
Requirements/
Option Code
C1: Factory
Configuration Data
(CDS required)
C2:Transmitter –
Sensor Matching
C4: Five Point
Calibration
F6: 60 Hz Line FilterCalibrated to a 60 Hz line voltage filter instead of 50 Hz filter
Specification
Date: day/month/year
Descriptor: 16 alphanumeric characters
Message: 32 alphanumeric character
Analog Output: Alarm and saturation levels
The transmitters are designed to accept Callendar-Van Dusen
constants from a calibrated RTD. Using these constants, the
transmitter generates a custom curve to match the
sensor-specific curve. Specify a Series 65, 65, or 78 RTD sensor
on the order with a special characterization curve (V or X8Q4
option). These constants will be programmed into the transmitter
with this option.
Will include 5-point calibration at 0, 25, 50, 75, and 100% analog
and digital output points.
Use with Calibration Certificate Q4.
Standard Block Configuration
A-16
Final Station
AI Blocks are scheduled for 1 second. AI Blocks are linked as shown above.
Emerson Process Management Rosemount Division. – Chanhassen,
Minnesota, USA
Rosemount Temperature GmbH – Germany
Emerson Process Management Asia Pacific – Singapore
The EC declaration of conformity for all applicable European directives for this
product can be found on the Rosemount website at www.rosemount.com. A
hard copy may be obtained by contacting our local sales representative.
ATEX Directive (94/9/EC)
Rosemount Inc. complies with the ATEX Directive.
CE Electromagnetic Compatibility Compliance Testing
The 644 meets the criteria under IEC 61326:2006
www.rosemount.com
Page 64
Rosemount 644
HAZARDOUS LOCATIONS CERTIFICATES
Rosemount 644 with
FOUNDATION fieldbus
Reference Manual
00809-0100-4728, Rev AA
June 2011
North American
Certifications
Factory Mutual (FM) Approvals
I5FM Intrinsically Safe and Non-incendive
Intrinsically Safe FISCO for use in Class I, II, III, Division 1, Groups A, B,
C, D, E, F, and G; when installed per control drawing 00644-2075.
Temperature Code: T4A (T
Nonincendive for use in Class I, Division 2, Groups A, B, C, and D.
Temperature Code: T5 (T
T6 (T
When installed per Rosemount control drawing 00644-2075
E5 FM Explosion Proof
Explosion Proof for Class I, Division 1, Groups B, C, and D.
Nonincendive for use in Class 1, Division 2, Groups A, B, C, and D.
Temperature Code: T5 (T
When installed per Rosemount control drawing 00644-1049
Dust Ignition Proof for Class II/III, Division 1, Groups E, F, G.
Temperature Code: T5 (T
When installed per Rosemount drawing 00644-1049.
(J5, J6 and J8 options only.)
Canadian Standards Association (CSA) Approvals
I6CSA Intrinsically Safe
Intrinsically Safe and FISCO for Class I, Division 1, groups A, B, C, and
D when connected per Rosemount drawing 00644-2076.
Temperature code: T4 (T
Suitable for Class I, Division 2, groups A, B, C, and D (must be installed
in a suitable enclosure)
= – 50 °C to 60 °C).
amb
= – 50 °C to 85 °C);
amb
= – 50 °C to 70 °C)
amb
= – 50 °C to 85 °C)
amb
= – 50 °C to 85 °C)
a
= – 50 °C to 60 °C);
amb
B-2
K6 CSA Intrinsically Safe, Explosion-proof
Includes Intrinsically Safe “I6” and Explosion-Proof for Class I, Division 1,
groups B, C, and D.
Dust-Ignition Proof for Class II, Division 1, Groups E, F, and G .
Dust-Ignition Proof for Class III, Division 1
Seal not required.
CSA Enclosure Type 4X
Temperature Code: T4 (T
T5 (T
NOTE:
(For J5 and J6 enclosure options only)
= – 50 °C to 60 °C);
amb
= – 50 °C to 85 °C)
amb
Page 65
Reference Manual
00809-0100-4728, Rev AA
June 2011
European CertificationsE1 ATEX Flame-Proof
Certificate Number: KEMA99ATEX8715X
ATEX Marking: II 2 G
1180
Ex d IIC T6 (–50 °C T
U
= 32 Vdc
Special Conditions for Safe Use (X):
For information on the dimensions of the flame pr o of join ts the
manufacturer shall be contacted.
I1ATEX Intrinsic Safety
Certificate Number: Baseefa03ATEX0499X
ATEX Marking: II 1 G
1180
Ex ia IIC T4 (-50 °C T
I.S. Loop/Power Terminals
Ui = 30 V
Ii = 300 mA
Pi = 1.3 W
Ci = 2.1 nF
Li = 0
FISCO Loop/Power Terminals
Ui = 17.5 V
Ii = 380 mA
Pi = 5.32 W
Ci = 2.1 nF
Li = 0
Sensor Terminals
Uo = 13.9 V
Io = 23 mA
Po = 79 mW
Ci = 7.7 nF
Li = 0
amb
amb
Rosemount 644
65 °C)
60 °C)
Special Conditions for Safe Use (X):
The apparatus must be insta lled 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 1G, light alloy or zirconium enclosures
must be protected from impact and friction when installed.
N1 ATEX Type n
Certificate Number: BAS00ATEX3145
ATEX Marking: II 3 G
Ex nL IIC T5 (-40 °C T
U
= 32 V
i
70 °C)
amb
B-3
Page 66
Rosemount 644
Reference Manual
00809-0100-4728, Rev AA
June 2011
NC ATEX Type n Component
Certificate Number: BAS99ATEX3084U
ATEX Marking: II 3 G
Ex nL IIC T5 (-40 °C T
Max Input Voltage: U
= 42.4 Vdc
i
NOTE:
The equipment must be installed in an enclosure meeting the requirement s of
IP54 and the requirements of the impact tests described in EN50021.
ND ATEX Dust Ignition-Proof
Certificate Number: KEMA99ATEX8715X
ATEX Marking: II 1 D
tD A20 T95°C (-50 °C T
1180
IP66
Special Conditions for Safe Use (X):
For information on the dimensions of the flame pr o of join ts the
manufacturer shall be contacted.
amb
amb
70 °C)
85 °C)
IECEx CertificationsE7 IECEx Flameproof and Dust
Certificate Number: IECEx KEM 09.0015X
Ex d IIC T6 (Flameproof)
Ex tD A20 IP 66 T 95 °C (Dust)
Vmax = 42.4 V
Special Conditions for Safe Use (X):
For information on the dimensions of the flame pr o of join ts the
manufacturer shall be contacted.
Table B-1. Electrical Data
TransmitterSensor
V
= 32 VdcU
max
I
= 12.0 mAI
max
I7IECEx Intrinsic Safety
Certificate Number: IECEx BAS 07.0053X
Ex ia IIC T4/T5/T6
Table B-2. Temperature Classification
P
i (W)
1.3T4-50 °C to 60 °C
5.32 (FISCO Group IIC)T4-60 °C to 80 °C
Special Conditions for Safe Use (X):
The apparatus must be installed in an enclosure which af fords it a degree
of protection of at least IP20.
Non-metallic enclosures must have a surface resistance of less than 1
G; light alloy or zirconium enclosures must be protected from impact
and friction when installed.
max
= 5 Vdc
max
= 2.0 mA
Temperature ClassT
amb
B-4
Page 67
Reference Manual
00809-0100-4728, Rev AA
June 2011
Rosemount 644
Table B-3. Entity Parameters
Transmitter (I.S.) Transmitter (FISCO)Sensor
U
= 30 VdcUi = 17.5 VdcUo = 13.9 Vdc
i
Ii = 300 mAIi = 380 mAIo = 23 mA
Pi = 1.3 WPi = 5.32 WPo = 79 mW
Ci = 2.1 nFCi = 2.1 nFCi = 7.7 nF
Li = 0 mHLi = 0 mHLi = 0 mH
N7 IECEx Type n
Certificate Number: IECEx BAS 07.0055
Ex nA nL IIC T5 (-40 °C T
Table B-4. Electrical Data
TransmitterSensor
RTDThermocouple
Ui = 32 VUi = 5 VUi = 0
NG IECEx Type n Component
Certificate Number: IECEx BAS 07.0054U
Ex nA nL IIC T5 (-40 °C T
70 °C)
amb
75 °C)
amb
Schedule of Limitations:
The component must be housed in a suitably certified enclosure that
provides a degree of protection of at least IP 54 .
B-5
Page 68
Rosemount 644
Japanese CertificationsJapanese Industrial Standard (JIS) Approvals
I4JIS Intrinsic Safety
E4 JIS Explosion Proof
Table B-5. Certificate and Description
Approval
Certificate Description
C15744 644H with meter
and no sensor
C15745 644H without
meter and no
sensor
C15749 644H without
meter and with
RTD
C15750 644H without
meter and with
thermocouple
C15751 644H with meter
and thermocouple
C15752 644H with meter
and RTD
C15910 644H without
meter and with
thermocouple
C15911644H with meter
and thermocouple
C15912 644H without
meter and with
RTD
C15913 644H with meter
and RTD
Group
Ex d II CT6
Ex d II CT6
Ex d II BT4
Ex d II BT4
Ex d II BT4
Ex d II BT4
Ex d II B + H2T4
Ex d II B + H2T4
Ex d II B + H2T4
Ex d II B + H2T4
Reference Manual
00809-0100-4728, Rev AA
June 2011
Temp
Code
Combination ApprovalsK5 Combination of I5 and E5.
Russian GOST
Certifications
PPC BA-13006:
0 Ex ia IIC T4/T5/T6
Kazakhstan GOSTPattern approval Certificate for Measuring Instruments
See Certificate
Ukraine GOSTPattern Approval for Measuring Instruments
See Certificate
B-6
Page 69
Reference Manual
00809-0100-4728, Rev AA
June 2011
Rosemount 644
INSTALLATION
DRAWINGS
The installation guidelines presented by the drawings must be followed in
order to maintain certified ratings for installed transmitters.
Rosemount Drawing 00644-1064, 1 Sheet,
Canadian Standards Association Intrinsic Safety Installation Drawing
Rosemount Drawing 00644-1059, 1 Sheet;
Canadian Standards Association Explosion-Proof Installation Drawing
Rosemount Drawing 00644-2076, 3 Sheets ;
Canadian Standards Association 644 Fieldbus Intrinsic Safety/FISCO
Installation Drawing
Once a device labeled with multiple approval types is installed, it should not
be reinstalled using any of the other labeled approval types. To ensure this,
the approval label should be permanently mark ed to distinguish the used from
the unused approval type(s).
B-7
Page 70
Rosemount 644
Figure B-1. CSA Intrinsic Safety Installation Drawing 00644-1064, Rev. AB
BASIC SETUP
RESOURCE BLOCKThis section contains information on the 644 Resource Block. Descriptions of
all Resource Block Parameters, errors, and diagn ostics are included. Also the
modes, alarm detection, status handling, and troubleshooting are discussed.
Definition
The resource block defines the physical resources of the device. The
resource block also handles functionality that is common across multiple
blocks. The block has no linkable inputs or outputs.
www.rosemount.com
Page 82
Rosemount 644
Reference Manual
00809-0400-4728, Rev AA
June 2011
Parameters and
Descriptions
The table below lists all of the configurable parameters of the Resource Block,
including the descriptions and index numbers for each.
Table C-1. Resource Block Parameters and Descriptions
Index
Parameter
ACK_OPTION38Selection of whether alarms associated with the function block will be
ADVISE_ACTIVE82Enumerated list of advisory conditions within a device.
ADVISE_ALM83Alarm indicating advisory alarms. These conditions do not have a direct impact on the
ADVISE_ENABLE80Enabled ADVISE_ALM alarm conditions. Corresponds bit for bit to the ADVISE_ACTIVE.
ADVISE_MASK81Mask of ADVISE_ALM. Corresponds bit of bit to ADVISE_ACTIVE. A bit on means that
ADVISE_PRI79Designates the alarming priority of the ADVISE_ALM
ALARM_SUM37The current alert status, unacknowledged states, unreported states, and disabled states
ALERT_KEY04The identification number of the plant unit.
BLOCK_ALM36The block alarm is used for all configuration, hardware, connection failure or system
BLOCK_ERR06This parameter reflects the error status associated with the hardware or software
CLR_FSTATE30Writing a Clear to this parameter will clear the device FAIL_SAFE if the field condition has
CONFIRM_TIME33The time the resource will wait for confirmation of receipt of a report before trying again.
CYCLE_SEL20Used to select the block execution method for this resource. The 644 supports the
CYCLE_TYPE19Identifies the block execution methods available for this resource.
DD_RESOURCE09String identifying the tag of the resource which contains the Device Description for
DD_REV13Revision of the DD associated with the resource - used by an interface device to locate
DEFINE_WRITE_LOCK60Allows the operator to select how WRITE_LOCK behaves. The initial value is “lock
DETAILED_STATUS55Indicateds the state of the transmitter. See Resource Block detailed status codes.
DEV_REV12Manufacturer revision number associated with the resource - used by an interface device
DEV_STRING43This is used to load new licensing into the device. The value can be written but will always
DEV_TYPE11Manufacturer’s model number associated with the resource - used by interface devices to
DIAG_OPTIONS46Indicates which diagnostics licensing options are enabled.
DISTRIBUTOR42Reserved for use as distributor ID. No Foundation enumerations defined at this time.
DOWNLOAD_MODE67Gives access to the boot block code for over-the-wire downloads.
Number
Description
automatically acknowledged.
process or device integrity.
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.
the condition is masked out from alarming.
of the alarms associated with the function block.
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.
components associated with a block. It is a bit string, so that multiple errors may be
shown.
cleared.
Retry will not happen when CONFIRM_TIME=0.
following:
Scheduled: Blocks are only executed based on the function block schedule.
Block Execution: A block may be executed by linking to another blocks completion.
this resource.
the DD file for the resource.
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 function blocks will be
allowed.
to locate the DD file for the resource.
read back with a value of 0.
locate the DD file for the resource.
0 = Uninitialized
1 = Run mode
2 = Download mode
C-2
Page 83
Reference Manual
00809-0400-4728, Rev AA
June 2011
Table C-1. Resource Block Parameters and Descriptions
Index
Parameter
FAULT_STATE28Condition set by loss of communication to an output block, fault promoted to an output
FAILED_ACTIVE72Enumerated list of failure conditions within a device.
FAILED_ALM73Alarm indicating a failure within a device which makes the device non-operational.
FAILED_ENABLE70Enabled FAILED_ALM alarm conditions. Corresponds bit for bit to the FAILED_ACTIVE.
FAILED_MASK71Mask of FAILED_ALM. Corresponds bit of bit to FAILED_ACTIVE. A bit on means that the
FAILED_PRI69Designates the alarming priority of the FAILED_ALM.
FB_OPTIONS45Indicates which function block licensing options are enabled.
FEATURES17Used to show supported resource block options. See Error! Reference source not found.
FEATURE_SEL18Used to select resource block options.
FINAL_ASSY_NUM54The same final assembly number placed on the neck label.
FREE_SPACE24Percent of memory available for further configuration. Zero in a preconfigured device.
FREE_TIME25Percent of the block processing time that is free to process additional blocks.
GRANT_DENY14Options for controlling access of host computers and local control panels to operating,
HARD_TYPES15The types of hardware available as channel numbers.
HARDWARE_REV52Hardware revision of the hardware that has the resource block in it.
ITK_VER41Major revision number of the inter operability test case used in certifying this device as
LIM_NOTIFY32Maximum number of unconfirmed alert notify messages allowed.
MAINT_ACTIVE77Enumerated list of maintenance conditions within a device.
MAINT_ALM78Alarm indicating the device needs maintenance soon. If the condition is ignored, the
MAINT_ENABLE75Enabled MAINT_ALM alarm conditions. Corresponds bit for bit to the MAINT_ACTIVE. A
MAINT_MASK76Mask of MAINT_ALM. Corresponds bit of bit to MAINT_ACTIVE. A bit on means that the
MAINT_PRI74Designates the alarming priority of the MAINT_ALM
MANUFAC_ID10Manufacturer identification number – used by an interface device to locate the DD file for
MAX_NOTIFY31Maximum number of unconfirmed notify messages possible.
MEMORY_SIZE22Available configuration memory in the empty resource. To be checked before
MESSAGE_DATE57Date associated with the MESSAGE_TEXT parameter.
MESSAGE_TEXT58Used to indicate changes made by the user to the device's installation, configuration,
MIN_CYCLE_T21Time duration of the shortest cycle interval of which the resource is capable.
MISC_OPTIONS47Indicates which miscellaneous licensing options are enabled.
MODE_BLK05The actual, target, permitted, and normal modes of the block:
NV_CYCLE_T23Minimum time interval specified by the manufacturer for writing copies of NV parameters
OUTPUT_BOARD_SN53Output board serial number.
Number
Description
block or physical contact. When FAIL_SAFE condition is set, then output function blocks
will perform their FAIL_SAFE actions.
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.
condition is masked out from alarming.
The supported features are: SOFT_WRITE_LOCK_SUPPORT,
HARD_WRITE_LOCK_SUPPORT, REPORTS, and UNICODE
tuning, and alarm parameters of the block. Not used by device.
interoperable. The format and range are controlled by the Fieldbus Foundation.
device will eventually fail.
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.
condition is masked out from alarming.
the resource.
attempting a download.
or calibration.
Target: The mode to “go to”
Actual: The mode the “block is currently in”
Permitted: Allowed modes that target may take on
Normal: Most common mode for actual
to non-volatile memory. Zero means it will never be automatically copied. At the end of
NV_CYCLE_T, only those parameters which have changed need to be updated in
NVRAM.
Rosemount 644
C-3
Page 84
Reference Manual
00809-0400-4728, Rev AA
Rosemount 644
Table C-1. Resource Block Parameters and Descriptions
Index
Parameter
RB_SFTWR_REV_ALL51The string will contains the following fields:
RB_SFTWR_REV_BUILD50Build of software that the resource block was created with.
RB_SFTWR_REV_MAJOR48Major revision of software that the resource block was created with.
RB_SFTWR_REV_MINOR49Minor revision of software that the resource block was created with.
RECOMMENDED_ACTION68Enumerated list of recommended actions displayed with a device alert.
RESTART16Allows a manual restart to be initiated. Several degrees of restart are possible. They are
RS_STATE07State of the function block application state machine.
SAVE_CONFIG_BLOCKS62Number of EEPROM blocks that have been modified since last burn. This value will count
SAVE_CONFIG_NOW61Allows the user to optionally save all non-volatile information immediately.
SECURITY_IO65Status of security switch.
SELF_TEST59Instructs resource block to perform self-test. Tests are device specific.
SET_FSTATE29Allows the FAIL_SAFE condition to be manually initiated by selecting Set.
SHED_RCAS26Time duration at which to give up on computer writes to function block RCas locations.
SHED_ROUT27Time duration at which to give up on computer writes to function block ROut locations.
SIMULATE_IO64Status of simulate switch.
SIMULATE_STATE66The state of the simulate switch:
ST_REV01The revision level of the static data associated with the function block.
START_WITH_DEFAULTS630 = Uninitialized
STRATEGY03The strategy field can be used to identify grouping of blocks.
SUMMARY_STATUS56An enumerated value of repair analysis.
TAG_DESC02The user description of the intended application of the block.
TEST_RW08Read/write test parameter - used only for conformance testing.
UPDATE_EVT35This alert is generated by any change to the static data.
WRITE_ALM40This alert is generated if the write lock parameter is cleared.
WRITE_LOCK34If set, no writes from anywhere are allowed, except to clear WRITE_LOCK. Block inputs
WRITE_PRI39Priority of the alarm generated by clearing the write lock.
XD_OPTIONS44Indicates which transducer block licensing options are enabled.
Number
Description
Major rev: 1-3 characters, 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
the following:
1 Run – nominal state when not restarting
2 Restart resource – not used
3 Restart with defaults – set parameters to default values. See
START_WITH_DEFAULTS below for which parameters are set.
4 Restart processor – does a warm start of CPU.
down to zero when the configuration is saved.
Shed from RCas shall never happen when SHED_ROUT = 0
Shed from ROut shall never happen when SHED_ROUT = 0
0 = Uninitialized
1 = Switch off, simulation not allowed
2 = Switch on, simulation not allowed (need to cycle jumper/switch)
3 = Switch on, simulation allowed
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)
will continue to be updated.
June 2011
C-4
Page 85
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
SENSOR TRANSDUCER
BLOCK
The transducer block contains the actual measurement data, includin g a
pressure and temperature reading. The transducer block include s information
about sensor type, engineering units, linearization, reranging, temperature
compensation, and diagnostics.
Parameters and
Descriptions
Table C-2. Sensor Transducer Block Parameters and Descriptions
Index
Parameter
ALERT_KEY04The identification number of the plant unit. No effect on operation of transmitter but may
BLOCK_ALM08The block alarm is used for all configuration,
BLOCK_ERR06This parameter reflects the error status
CAL_MIN_SPAN18The minimum calibration span value allowed.
CAL_POINT_HI16The highest calibrated value.Assigns a value to the calibration high point.
CAL_POINT_LO17The lowest calibrated value.Assigns a value to the calibration low point.
CAL_UNIT19The device description engineering units code
COLLECTION_DIRECTORY12A directory that specifies the number, starting
ASIC_REJECTION42Indicates the type of material that the drain
FACTORY_CAL_RECALL32Recalls the sensor calibration set at the factory.
USER_2W_OFFSET36Indicates the type of material that the flange is
INTER_DETECT_THRESH35Indicates the type of flange that is attached to
MODE_BLK05The actual, target, permitted, and normal modes
CALIBRATOR_MODE33Indicates the type of sensor module.
PRIMARY_VALUE14The measured value and status available to the
Number
Description
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.
associated with the hardware or software
components associated with a block. It is a bit
string, so that multiple errors may be shown.
This minimum span information is necessary to
ensure when calibration is done, the two
calibrated points are not too close together.
index for the calibration values.
indices, and DD Item ID's of the data collections
in each transducer.
vents on the flange are made of. See Drain Vent
Material Codes.
made of. See Flange Material Codes.
the device. See Flange Type Codes.
of the block.
Target: The mode to “go to”
Actual: The mode the “block is currently in”
Permitted: Allowed modes that target may take
on
Normal: Most common mode for target
function block.
Notes on how changing this parameter
effects transmitter operation.
affect the way alerts are sorted on the host end.
No effect.
No effect.
No effect.
Device must be calibrated using the appropriate
engineering units.
No effect.
Assigns the device mode.
No effect.
C-5
Page 86
Rosemount 644
Table C-2. Sensor Transducer Block Parameters and Descriptions
Index
Parameter
PRIMARY_VALUE_RANGE15The high and low range limit values, the
PRIMARY_VALUE_TYPE13Type of measurement represented by the
SENSR_DETAILED_STATUS37Indicates the number of remote seals that are
CAL_VAN_DUSEN_COEFF38Indicates the type of remote seals that are
SECONDARY_VALUE_RANG30The secondary value, related to the sensor.No effect.
SECONDARY_VALUE_UNIT29Engineering units to be used with
SENSOR_CAL_DATE25The last date on which the calibration was
SENSOR_CAL_LOC24The last location of the sensor calibration. This
SENSOR_CAL_METHOD23The method of last sensor calibration.No effect.
OPEN_SNSR_HOLDOFF34The type of last sensor calibration.No effect.
SENSOR_CAL_WHO26The name of the person responsible for the last
SECONDARY_VALUE28Defines the type of fill fluid used in the sensor.No effect.
SENSOR_CONNECTION27Defines the construction material of the isolating
SENSOR_RANGE21The high and low range limit values, the
SENSOR_SN22Serial number of the sensor.No effect.
SENSOR_TYPE20Type of sensor connected with the transducer
ST_REV01The revision level of the static data associated
Number
Description
engineering unit code, and the number of digits
to the right of the decimal point to be used to
display the final value.
Valid engineering units are the following:
1130 = Pa
1133 = kPa
1137 = bar
1138 = mbar
1139 = torr
1140 = atm
1141 = psi
1144 = g/cm
1145 = kg/cm
1148 = inH2O @ 68 °F
1151 = mmH
1154 = ftH
1156 = inHg @ 0 °C
1158 = mmHg @ 0 °C
attached to the device. See Remote Seal
Number Codes.
attached to the device. See Remote Seal Type
Codes.
SECONDARY_VALUE.
1001 °C
1002 °F
performed.This is intended to reflect the
calibration of that part of the sensor that is
usually wetted by the process.
describes the physical location at which the
calibration was performed.
sensor calibration.
diaphragms.
engineering units code, and the number of digits
to the right of the decimal point for the sensor.
block.
with the function block.
2
2
O @ 68 °F
2
O @ 68 °F
2
Notes on how changing this parameter
effects transmitter operation.
No effect.
No effect.
No effect.
No effect.
No effect.
No effect.
No effect.
No effect.
No effect.
No effect.
Reference Manual
00809-0400-4728, Rev AA
June 2011
C-6
Page 87
Reference Manual
00809-0400-4728, Rev AA
June 2011
Table C-2. Sensor Transducer Block Parameters and Descriptions
Index
Parameter
STRATEGY03The strategy field can be used to identify
TAG_DESC02The user description of the intended application
SESNOR_1_DAMPING31Indicates the state of the transmitter. The
TRANSDUCER_DIRECTORY09Directory that specifies the number and starting
TRANSDUCER_TYPE10Identifies the transducer that follows.No effect.
UPDATE_EVT07This alert is generated by any change to the
XD_ERROR11Provides additional error codes related to
Number
Description
grouping of blocks.
of the block.
parameter contains specific codes relating to
the transducer block and the pressure sensor
specifically.
indices of the transducers in the transducer
block.
static data.
transducer blocks.
Rosemount 644
Notes on how changing this parameter
effects transmitter operation.
No effect.
No effect.
No effect.
No effect.
No effect.
No effect.
C-7
Page 88
Rosemount 644
Analog
Measurement
Access
Analog
Meas.
CHANNEL
SIMULATE
OUT_SCALE
XD_SCALE
FIELD_VAL
L_TYPE
IO_OPTS
PV_FTIME
MODE
STATUS_OPTS
HI_HI_LIM
HI_LIM
LO_LO_LIM
LO_LIM
ALARM_HYS
ALARM_TYPE
OUT_D
OUT
PV
Convert
Cutoff Filter
Status
Calc.
Alarm
Detection
NOTES:
OUT = block output value and status.
OUT_D = discrete output that signals a selected alarm condition.
LOW_CUT
Reference Manual
00809-0400-4728, Rev AA
June 2011
ANALOG INPUT (AI)
FUNCTION BLOCK
Figure C-1. 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. The measuring device may have several measurements or
derived values available in different channels. Use the chann el number to
define the variable that the AI block processes.
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
the output status. A discrete output (OUT_D) is prov ided to indicate whether a
selected alarm condition is active. Alarm detection is based on the OUT value
and user specified alarm limits. Figur e C-1 illustrates the internal components
of the AI function block, and Table C-3 lists the AI block parameters and their
units of measure, descriptions, and index numbers.
C-8
Page 89
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
AI Parameter Table
Table C-3. Definitions of Analog Input Function Block System Parameters
Index
Parameter
ACK_OPTION230 = Auto Ack Disabled
ALARM_HYS240 – 5 0 Percent0.5Read and Write The amount the alarm value must return within
ALM_SEL38HI_HI, HI, LO, LO_LONoneNon selectedRead and Write Used to select the process alarm conditions that
ALARM_SUM22Enable/DisableNoneEnableRead and Write The summary alarm is used for all process
ALERT_KEY041 – 255None0Read and Write The identification number of the plant unit. This
BLOCK_ALM21Not applicableNoneNot applicableRead onlyThe block alarm is used for all configuration,
BLOCK_ERR06Not applicableNoneNot applicableRead onlyThis parameter reflects the error status
CAP_STDDEV40> = 0Seconds0Read and Write The time over which the VAR_INDEX is
CHANNEL151 = Pressure
FIELD_VAL190 – 1 00PercentNot applicableRead onlyThe value and status from the transducer block
GRANT_DENY12Program
HI_ALM34Not applicableNoneNot applicableRead onlyThe HI alarm data, which includes a value of the
HI_HI_ALM33Not applicableNoneNot applicableRead onlyThe HI HI alarm data, which includes a value of
HI_HI_LIM26Out_Scale
HI_HI_PRI250 – 15None1Read and Write The priority of the HI HI alarm.
HI_LIM28Out_Scale
HI_PRI270 – 15None1Read and Write The priority of the HI alarm.
IO_OPTS13Low Cutoff
L_TYPE16Direct
No.
Available ValuesUnitsDefaultRead/WriteDescription
1 = Auto Ack Enabled
2 = Housing
temperature
Tune
Alarm
Local
(2)
(2)
Enable/Disable
Indirect
Indirect Square Root
None0 all DisabledRead and Write Used to set auto acknowledgment of alarms.
NoneAI
NoneNot applicableRead and Write Normally the operator has permission to write to
Out_Scale
Out_Scale
NoneDisableRead and Write Allows the selection of input/output options used
NoneDirectRead and W r ite Linearization type. Determines whether the field
(2)
(2)
(1)
: Channel = 1
AI2: Channel = 2
Not applicableRead and Write The setting for the alarm limit used to detect the
Not applicableRead and Write The setting for the alarm limit used to detect the
Read and Write The CHANNEL value is used to select the
the alarm limit before the associated active alarm
condition clears.
will cause the OUT_D parameter to be set.
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.
information may be used in the host for sorting
alarms, etc.
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.
associated with the hardware or software
components associated with a block. It is a bit
string, so that multiple errors may be shown.
evaluated.
measurement value. Refer to the appropriate
device manual for information about the specific
channels available in each device.
You must configure the CHANNEL parameter
before you can configure the XD_SCALE
parameter.
or from the simulated input when simulation is
enabled.
parameter values, but Program or Local remove
that permission and give it to the host controller
or a local control panel.
alarm, a timestamp of occurrence and the state
of the alarm.
the alarm, a timestamp of occurrence and the
state of the alarm.
HI HI alarm condition.
HI alarm condition.
to alter the PV. Low cutoff enabled is the only
selectable option.
value is used directly (Direct), is converted
linearly (Indirect), or is converted with the squ are
root (Indirect Square Root).
C-9
Page 90
Reference Manual
00809-0400-4728, Rev AA
Rosemount 644
Table C-3. Definitions of Analog Input Function Block System Parameters
Index
Parameter
LO_ALM35Not applicableNoneNot applicableRead onlyThe LO alarm data, which includes a value of the
LO_LIM30Out_Scale
LO_LO_ALM36Not applicableNoneNot applicableRead onlyThe LO LO alarm data, which includes a value of
LO_LO_LIM32Out_Scale
LO_LO_PRI310 – 15None1Read and Write The priority of the LO LO alarm.
LO_PRI290 – 15None1Read and Write The priority of the LO alarm.
LOW_CUT17> = 0Out_Scale
MODE_BLK05Auto
OUT08Out_Scale
OUT_D37Discrete_State 1 – 16NoneDisabledRead and Write Discrete output to indicate a selected alarm
OUT_SCALE11Any output rangeAll availablenoneRead and Write The high and low scale values, engineering units
PV07Not applicableOut_Scale
PV_FTIME18> = 0Seconds0Read and Write The time constant of the first-order PV filter. It is
SIMULATE09Not applicableNoneDisableRead and Write A group of data that contains the current
ST_REV01Not applicableNone0Read onlyThe revision level of the static data associated
STATUS_OPTS 14Propagate fault forward
STDDEV390 – 100Percent0Read and Write The average absolute error between the PV and
STRATEGY030 – 65535None0Read and Write The strategy field can be used to identify
TAG_DESC0232 text charactersNonenoneRead and Write The user description of the intended application
UPDATE_EVT20Not applicableNoneNot applicableRead onlyThis alert is generated by any change to the
XD_SCALE10Any sensor rangeinH2O (68 °F)
(1) The host system may write over default values pre-configured by Rosemount Inc.
(2) Assume that when L_Type = Direct, the user conf igures Out_Scale which is equal to XD_Scale
No.
Available ValuesUnitsDefaultRead/WriteDescription
Manual
(2)
(2)
Out_Scale
Out_Scale
NoneNot applicableRead and Write The actual, target, permitted, and normal modes
(2)
Not applicableRead and Write The setting for the alarm limit used to detect the
(2)
Not applicableRead and Write The setting for the alarm limit used to detect the
(2)
0Read and Write If percentage value of transducer input fails
Out of Service
(2)
± 10%Out_Scale
Uncertain if Limited
Bad if Limited
Uncertain if Man Mode
inHg (0 °C)
ftH
mmH
mmHg (0 °C)
psi
bar
mbar
g/cm
kg/cm
Pa
kPa
torr
atm
deg C
O (68 °F)
2
O (68 °F)
2
2
2
(2)
Not applicableRead and Write The block output value and status.
(2)
Not applicableRead onlyThe process variable used in block execution.
0Read and Write
(1)
AI1
: Customer
specification
or
O (68 °F) for
inH
2
DP/GP rng 1, 2, 3)
or
psi for DP/GP rng
4, 5 AP/644 all rng
AI2 deg C
deg F
alarm, a timestamp of occurrence and the state
of the alarm.
LO alarm condition.
the alarm, a timestamp of occurrence and the
state of the alarm.
LO LO alarm condition.
below this, PV = 0.
of the block.
Target: The mode to “go to”
Actual: The mode the “block is currently in”
Permitted: Allowed modes that target may take
on
Normal: Most common mode for target
condition.
code, and number of digits to the right of the
decimal point associated with OUT.
the time required for a 63% change in the IN
value.
transducer value and status, the simulated
transducer value and status, and the
enable/disable bit.
with the function block. The revision value will be
incremented each time a static parameter value
in the block is changed.
its previous mean value over that evaluation time
defined by VAR_SCAN.
grouping of blocks. This data is not checked or
processed by the block.
of the block.
static data.
In all Rosemount devices the units of the
transducer block is forced to match the unit code.
June 2011
C-10
Page 91
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
LCD TRANSDUCER
BLOCK
Table C-4. LCD Transducer Block Parameters and Descriptions
ParameterIndexDescription
ALERT_KEY4The identification number of the plant unit.
BLK_TAG_115The tag of the block containing DP1.
BLK_TAG_221The tag of the block containing DP2.
BLK_TAG_327The tag of the block containing DP3.
BLK_TAG_433The tag of the block containing DP4.
BLK_TYPE_114The enumerated block type for DP1's block.
BLK_TYPE_220The enumerated block type for DP2's block.
BLK_TYPE_326The enumerated block type for DP3's block.
BLK_TYPE_432The enumerated block type for DP4's block.
BLOCK_ALM8The 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.
BLOCK_ERR6This parameter reflects the error status associated with the hardware or software components
COLLECTION_DIRECTORY12A directory that specifies the number, starting indicies, and DD Item ID's of the data collections in
CUSTOM_TAG_117The block description that is displayed for DP1.
CUSTOM_TAG _223The block description that is displayed for DP2.
CUSTOM_TAG _329The block description that is displayed for DP3.
CUSTOM_TAG _435The block description that is displayed for DP4.
CUSTOM_UNITS_119This is the user entered units that are displayed when UNITS_TYPE_1=Custom.
CUSTOM_UNITS _225This is the user entered units that are displayed when UNITS_TYPE_2=Custom.
CUSTOM_UNITS _331This is the user entered units that are displayed when UNITS_TYPE_3=Custom.
CUSTOM_UNITS _437This is the user entered units that are displayed when UNITS_TYPE_4=Custom.
DISPLAY_PARAM_SEL13This will determine which Display Parameters are active.
MODE_BLK5The actual, target, permitted, and normal modes of the block.
PARAM_INDEX_116The relative index of DP1 within its block.
PARAM_INDEX_222The relative index of DP2 within its block.
PARAM_INDEX_328The relative index of DP3 within its block.
PARAM_INDEX_434The relative index of DP4 within its block.
ST_REV1The revision level of the static data associated with the function block.
STRATEGY3The strategy field can be used to identify grouping of blocks.
TAG_DESC2The user description of the intended application of the block.
TRANSDUCER_DIRCTORY9A directory that specifies the number and starting indicies of the transducers in the transducer
TRANSDUCER_TYPE10Identifies the transducer that follows.
UNITS_TYPE_118This parameter determines where the units for the display parameter come from.
UNITS_TYPE_224This parameter determines where the units for the display parameter come from.
UNITS_TYPE_330This parameter determines where the units for the display parameter come from.
UNITS_TYPE_436This parameter determines where the units for the display parameter come from.
UPDATE_EVT7This alert is generated by any change to the staic data.
XD_ERROR11Provides additional error codes related to transducer blocks.
associated with a block. it is a bit string, so that multiple errors may be shown.
each transducer block.
Bit 0 = DP1
Bit 1 = DP2
Bit 2 = DP3
Bit 3 = DP4
Bit 4 = Bar Graph enable
Proportional/Integral/Derivative (PID)
function block
PV_FTIME . . . . . . . . . . . . . . . . .3-9
AI block . . . . . . . . . . . . . . . .3-12
. . . . . . . . . . . . . . .3-4
Index-2
Page 95
Reference Manual
00809-0100-4728, Rev KA
June 2011
Rosemount 644
R
Recommended Actions . . . . . . . . 3-8
PlantWeb Alarms . . . . . . . . . . 3-8
RECOMMENDED_ACTION . . . . 3-8
Reference data . . . . . . . . . . . . .A-8
Reports . . . . . . . . . . . . . . . . . . . 3-5
Resource Block . . . . 3-4, 3-23, C-1
Block Errors . . . . . . . . . . . . . 3-23
Block Information . . . . . . . . . .C-1
Configuration . . . . . . . . . . . . . 3-4
Detailed Status . . . . . . . . . . . 3-23
FEATURES, FEATURES_SEL 3-5
Parameters . . . . . . . . . . . . . .C-2
BLOCK_ERR . . . . . . . . . . 3-23
Summary Status . . . . . . . . . . 3-23
Resource block . . . . . . . . . . . . .C-1
Return of Materials . . . . . . . . . . . 1-4
RTD
Ungrounded
Wiring . . . . . . . . . . . . . . . . . . 2-9
. . . . . . . . . . . . . 2-11
S
Security . . . . . . . . . . . . . . . . . . 3-5
Self Test . . . . . . . . . . . . . . . . . 3-24
Sensor
Connection
Diagram
Millivolt . . . . . . . . . . . . . . . . . 2-8
Ohm . . . . . . . . . . . . . . . . . . . 2-9
RTD . . . . . . . . . . . . . . . . . . . 2-9
Thermocouple . . . . . . . . . . . . 2-8
Wiring . . . . . . . . . . . . . . . . . . 2-8
Sensor Calibration . . . . . . . . . . 3-18
Sensor Transducer Block . .3-4, 3-9,
. . . . . . . . . . . . . . 2-8
3-18, . . . . . . . . . . . . . . . . . . . .C-5
Block Information . . . . . . . . . .C-5
Configuration . . . . . . . . . . . . . 3-9
Operation and Maintenance . . 3-18
Parameters . . . . . . . . . . . . . .C-5
Simulate . . . . . . . . . . . . . . . . . 3-21
Simulation . . . . . . . . . . . . . . . . 3-21
Manual Mode . . . . . . . . . . . . 3-21
Soft W Lock, Hard W Lock . . . . . 3-5
Specifications
Performance
Status . . . . . . . . . . . . . . . . . . . 3-21
AI block . . . . . . . . . . . . . . . . 3-13
STATUS_OPTIONS . . . . . . . . . 3-13
Supported Units . . . . . . . . . . . . 3-10
Switches
Simulate
. . . . . . . . . . . . .A-3
. . . . . . . . . . . . . . . 3-21
Trim
Zero . . . . . . . . . . . . . . . . . . . 3-9
Troubleshooting . . . . . . . . . . . 3-16
Flowchart . . . . . . . . . . . . . . 3-16
LCD Transducer block . . . . . 3-24
Reference table . . . . . . . . . . 3-16
Resource Block . . . . . . . . . . 3-23
Types of Modes
. . . . . . . . . . . . . . . . . . . 3-2
Auto
Man . . . . . . . . . . . . . . . . . . . 3-2
Other Types of Modes . . . . . . 3-2
Out of Service . . . . . . . . . . . . 3-2
U
Uncertain
Limited . . . . . . . . . . . . . . . . 3-13
Man Mode . . . . . . . . . . . . . . 3-13
Unicode . . . . . . . . . . . . . . . . . . 3-5
UNITS_TYPE_# . . . . . . . . . . . 3-15
Upper Trim Method . . . . . . . . . 3-18
V
Virtual Communication Relationship
(VCRs) . . . . . . . . . . . . . . . . . . . 3-4
Network Parameters . . . . . . . . 3-4
W
Wiring . . . . . . . . . . . . . . . . . . . 2-7
Sensor Connection . . . . . . . . 2-8
Diagram . . . . . . . . . . . . . . 2-8
Millivolt . . . . . . . . . . . . . . . 2-8
Ohm . . . . . . . . . . . . . . . . . 2-9
RTD . . . . . . . . . . . . . . . . . 2-9
Thermocouple . . . . . . . . . . 2-8
X
XD_SCALE . . . . . . . . . . . . . . . 3-9
XD_SCALE, OUT_SCALE . . . . 3-10
L_TYPE
. . . . . . . . . . . . . . . 3-10
Direct
Z
Zero Trim . . . . . . . . . . . . . . . . . 3-9
T
Thermocouple
Grounded
Ungrounded . . . . . . . . . . . . . 2-11
Wiring . . . . . . . . . . . . . . . . . . 2-8
. . . . . . . . . . . . . . 2-12
Index-3
Page 96
Rosemount 644
Reference Manual
00809-0100-4728, Rev KA
June 2011
Index-4
Page 97
Page 98
Reference Manual
00809-0400-4728, Rev AA
June 2011
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.
PlantWeb is a registered trademark of one of the Emerson Process Management group of companies.
F
OUNDATION is a trademark of the Fieldbus Foundation.
HART is a registered trademark of the HART Communication Foundation.
Lexan and Noryl are registered trademark of General Electric.
WAGO is a registered trademark of Kontakttechnik GmbH, Germany.
All other marks are the property of their respective owners.