Emerson 644 User Manual
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644 Temperature Transmitter
with FOUNDATION™ fieldbus
www.rosemount.com
Rosemount 644
Table of Contents
Reference Manual
00809-0400-4728, Rev AA
June 2011
SECTION 1
Introduction
SECTION 2
Installation
Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Environmental. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Return of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Product Recycling/Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Typical European Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Typical North American Installation . . . . . . . . . . . . . . . . . . . . . . . . 2-5
LCD Display Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Sensor Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Ground the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
SECTION 3
Configuration
TOC-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
General Block Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Device Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Node Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Link Active Scheduler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Block Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Capabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Foundation fieldbus function blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Resource Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Sensor Transducer Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Analog Input (AI) Function Block . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
LCD Transducer Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Operation and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Troubleshooting Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Sensor Transducer Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Analog Input (AI) Function Block . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Resource Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
LCD Transducer block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
APPENDIX A
Specifications and
Reference Data
APPENDIX B
Product
Certifications
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
Functional. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Foundation Fieldbus Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Dimensional Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-9
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-12
Tagging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-14
Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-14
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-15
Approved Manufacturing Locations . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1
European Union Directive Information. . . . . . . . . . . . . . . . . . . . . . . . .B-1
Hazardous Locations Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2
Rosemount 644 with Foundation fieldbus. . . . . . . . . . . . . . . . . . . .B-2
North American Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2
European Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-3
IECEx Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-4
Japanese Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
Combination Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
Russian GOST Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
Kazakhstan GOST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
Ukraine GOST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
Installation Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-7
APPENDIX C
Foundation
fieldbus Block
Information
Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
Resource Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
Parameters and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2
Sensor Transducer Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-5
Parameters and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-5
Analog Input (AI) Function Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-8
AI Parameter Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-9
LCD Transducer Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-11
PID Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-12
TOC-2
Reference Manual
NOTICE
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Rosemount 644
Temperature Transmitters
Rosemount 644 Hardware Revision
OUNDATION
F
Device Descriptor Revision
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.
™
Fieldbus Device Revision
9
2
1
www.rosemount.com
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Section 1 Introduction
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 1-2
Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 1-3
Return of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-4
SAFETY MESSAGES Instructions 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
Reference Manual
00809-0400-4728, Rev AA
Rosemount 644
OVERVIEW
Manual This 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
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
General Electrical 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
Commissioning The 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.
Mechanical Location
When choosing an installation location and position, take into account the
need for access to the transmitter.
Special Mounting
Special mounting hardware is available for mounting a 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.
Environmental The 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
Rosemount 644
Housing Temperature Rise, Above
Ambient °C (°F)
3 4 5 6 7 8 9
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 MATERIALS To 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.
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Section 2 Installation
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-4
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-7
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-11
SAFETY MESSAGES Instructions 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.
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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
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
MOUNTING Mount 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
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 Transmitter D = Transmitter Mounting Screws
B = Connection Head E = Integral Mount Sensor with Flying Leads
C = Thermowell F = Extension
2-4
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 Thermowell D = Universal Head
B = Threaded Style Sensor E = Conduit Entry
C = Standard Extension
2-5
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 Installation The LCD display provides local indication of the transmitter output and
abbreviated diagnostic messages governing transmitter operation.
Transmitters ordered with the LCD display are shipped with the meter
installed. 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
Reference Manual
1 2 3 4
Sensor
Terminals
Communication
Terminals
Power Terminals
00809-0400-4728, Rev AA
June 2011
Rosemount 644
WIRING All power to the transmitter is supplied over the signal wiring. Use ordinary
copper wire of sufficient size to ensure that the voltage across the transmitter
power terminals does not drop below 9 Vdc.
If the sensor is installed in a high-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
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 Connections The 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.
644 Sensor Connections Diagram
2-8
Reference Manual
Basic Error
Imbalance of Lead Wires
PtRo
----------------------------------------------------------------- -=
Error due to amb. temp. variation
Cu
T
amb
Imbalance of Lead Wires
Pt
R
o
-------------------------------------------------------------------------------------------------------------------------
=
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Rosemount 644
RTD or Ohm Inputs
The transmitters will accept a variety of RTD configurations, including 2-wire,
3-wire, or 4-wire. If the transmitter is mounted remotely from a 3-wire or 4-wire
RTD, it will operate within specifications, without recalibration, for lead wire
resistances of up to 60 ohms per lead (equivalent to 6,000 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 Input Approximate Basic Error
4-wire RTD None (independent of lead wire resistance)
3-wire RTD ± 1.0 in reading per ohm of unbalanced lead wire resistance
2-wire RTD 1.0 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.
• Pt100 3-wire RTD:
2-9
Rosemount 644
Basic error
0.5
0.00385 / C100
--------------------------------------------------------------------------------- - 1.3 C==
Error due to amb. temp. var. of 25 °C
0.0039 / C25 C 0.5
0.00385 / C100
-------------------------------------------------------------------------------------------------------
0.1266 C==
Basic Error
Lead Wire Resistance
PtRo
----------------------------------------------------------
=
Error due to amb. temp. variation
Cu
T
amb
Lead Wire Resistance
Pt
R
o
-----------------------------------------------------------------------------------------------------------------=
Basic error
7.5
0.00385 / C100
--------------------------------------------------------------------------------- -
19.5 C==
Error due to amb. temp. var. of 25 °C
0.0039 / C25 C 7.5
0.00385 / C100
-------------------------------------------------------------------------------------------------------
1.9 C==
Reference Manual
00809-0400-4728, Rev AA
June 2011
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
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 SUPPLY FOUNDATION 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 Transmitter The 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
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.
Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
Section 3 Configuration
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 3-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1
General Block Information . . . . . . . . . . . . . . . . . . . . . . . . . page 3-2
F
OUNDATION fieldbus function blocks . . . . . . . . . . . . . . . .page 3-4
Operation and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . page 3-15
OVERVIEW This section provides information on configuring, troubleshooting, operating,
and maintaining the Rosemount 644 Temperature transmitter using
F
OUNDATION fieldbus protocol.
SAFETY MESSAGES Instructions 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
Reference Manual
00809-0400-4728, Rev AA
Rosemount 644
June 2011
GENERAL BLOCK INFORMATION
Device Description Before configuring the device, ensure the host has the appropriate Device
Description file revision for this device. The device descriptor can be found on
www.rosemount.com. The initial release of th e Rosemount 644 with
F
OUNDATION fieldbus protocol is device revision 1.
Node Address The 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.
Modes The 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
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 Scheduler The 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 Installation Rosemount 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
Rosemount 644
Capabilities Virtual 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 Parameter Value
Slot Time 8
Maximum Response Delay 2
Maximum Inactivity to Claim LAS Delay 32
Minimum Inter DLPDU Delay 8
Time Sync class 4 (1ms)
Maximum Scheduling Overhead 21
Per CLPDU PhL Overhead 4
Maximum Inter-channel Signal Skew 0
Required Number of Post-transmission-gab-ext Units 0
Required Number of Preamble-extension Units 1
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.
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 Block FEATURES 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
Rosemount 644
Reference Manual
00809-0400-4728, Rev AA
June 2011
The following table displays all possible configurations of the
WRITE_LOCK parameter.
FEATURE_SEL
SW_SEL bit
0 (off) 1 (unlocked) Read only NA All
1 (on) 1 (unlocked) Read/Write NA All
1 (on) 2 (locked) Read/Write Physical Function
1 (on) 2 (locked) Read/Write Everything None
WRITE_LOCK
WRITE_LOCK
Read/Write
DEFINE_WRITE_LOCK
Write access
to blocks
Blocks only
FEATURES_SEL
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
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
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
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