Honeywell STT850 Series User manual

Honeywell Process Solutions
STT850 Series HART/DE Option
User’s Manual
34-TT-25-06
Revision 4.0
March 2016

Page ii STT850 Series HART/DE Option User’s Manual Revision 4.0
Copyrights, Notices and Trademarks
© Copyright 2016 by Honeywell, Inc.
Revision 4, March 2016
While the information in this document is presented in good faith and believed to be
accurate, Honeywell disclaims any implied warranties of merchantability and fitness for a
particular purpose and makes no express warranties except as may be stated in the written
agreement with and for its customers. In no event is Honeywell liable to anyone for any
indirect, special, or consequential damages. The information and specifications in this
document are subject to change without notice.
Honeywell, TDC 3000, SFC, SmartLine, PlantScape, Experion PKS, and TotalPlant are
registered trademarks of Honeywell International Inc. Other brand or product names and
service marks are the property of their respective owners.
Honeywell Process Solutions
1250 W Sam Houston Pkwy S
Houston, TX 77042

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page iii
About This Manual
This manual provides the details of programming Honeywell STT850 SmartLine Temperature
Transmitters for applications involving HART versions 5, 6, and 7 and Honeywell’s Digitally
Enhanced (DE) communication protocols. For installation, wiring, and maintenance information
refer to the STT850 SmartLine Temperature Transmitter User Manual, document number
#34-TT-25-03.
The configuration of your Transmitter depends on the mode of operation and the options selected
for it with respect to operating controls, displays and mechanical installation. Details for
operations involving the Honeywell Multi-Communication (MC) Toolkit (MCT404/202) are
provided only to the extent necessary to accomplish the tasks-at-hand. Refer to the associated
MCT404/202 User Manual for complete details. The “Reference” section in the front matter of this
manual lists document titles and numbers.
The STT850 SmartLine Temperature Transmitter can be digitally integrated with one of two
systems:
Experion PKS: you will need to supplement the information in this document with the data and
procedures in the Experion Knowledge Builder.
Honeywell’s TotalPlant Solutions (TPS): you will need to supplement the information in this
document with the data in the PM/APM SmartLine Transmitter Integration Manual, which is
supplied with the TDC 3000 book set. (TPS is the evolution of the TDC 3000).
Release Information
STT850 Series HART/DE Option User Manual, Document # 34-TT-25-06 (this document)
Rev. 1.0, March 2014, 1st Release
Rev. 2.0, May 2014, General updates
Rev. 3.0, November 2014, Fieldbus and Approvals added
Rev. 4.0, March 2016, CVD, Type C (W5W26) input details and Digital Output option added
References
The following list identifies publications that may contain information relevant to the information
in this document.
STT850 SmartLine Temperature Transmitter Quick Start Installation Guide, # 34-TT-25-04
STT850 SmartLine Temperature Transmitter w/ HART Comms Safety Manual, 34-TT-25-05
STT850 SmartLine Temperature Transmitter User Manual, # 34-TT-25-03
STT850 Transmitter with FOUNDATION Fieldbus Option & Function Blocks Installation &
Device Reference, # 34-TT-25-07
MCT404 User Manual, Document # 34-ST-25-50
PM/APM SmartLine Transmitter Integration Manual, # PM 12-410
STT850 Series Temperature, Transmitter, Agency IS Control Drawing, 50091227
Smart Field Communicator Model STS 103 Operating Guide, Document # 34-ST-11-14
MC Toolkit Modem Code Download Instruction Manual, Document # 34-ST-25-33

Page iv STT850 Series HART/DE Option User’s Manual Revision 4.0
Patent Notice
The Honeywell STT850 SmartLine Temperature Transmitter family is covered by one or more of the
following U. S. Patents: 5,485,753; 5,811,690; 6,041,659; 6,055,633; 7,786,878; 8,073,098; and other
patents pending.
Support and Contact Information
For Europe, Asia Pacific, North and South America contact details, see back page or refer to the
appropriate Honeywell Solution Support web site:
Honeywell Corporate www.honeywellprocess.com
Honeywell Process Solutions https://www.honeywellprocess.com/smartline-temperature/
Training Classes http://www.automationccollege.com
Telephone and Email Contacts
Area
Organization
Phone Number
United States and
Canada
Honeywell Inc.
1-800-343-0228 Customer Service
1-800-423-9883 Global Technical Support
Global Email
Support
Honeywell Process
Solutions
[e-mail]

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page v
Contents
1STT850 Physical and Functional Characteristics...........................................................................1
1.1 Overview ................................................................................................................................1
1.2 Features and Options..............................................................................................................1
1.2.1 Physical Characteristics..................................................................................................2
1.2.2 Functional Characteristics ..............................................................................................3
1.3 STT850 SmartLine Transmitter NamePlate...........................................................................3
1.4 Safety Certification Information.............................................................................................3
1.5 Transmitter Adjustments........................................................................................................3
1.6 Local Display Options............................................................................................................4
1.7 Optional 3-Button Assembly..................................................................................................5
2Communication Modes ..................................................................................................................7
2.1 Overview ................................................................................................................................7
2.2 Digitally Enhanced (DE) Mode Communication...................................................................7
2.3 HART Mode Communication................................................................................................8
3Configuration Tools and Interfaces................................................................................................9
3.1 Overview ................................................................................................................................9
3.2 Pre-requisites..........................................................................................................................9
3.3 Application Design, Installation, Startup, and Operation.......................................................9
3.3.1 Organization...................................................................................................................9
3.4 MC Toolkit Participation......................................................................................................10
3.4.1 MC Toolkit Software Applications..............................................................................10
3.4.2 Configuration Databases ..............................................................................................10
3.4.3 Configuration................................................................................................................10
3.4.4 MC Toolkit–Transmitter Electrical/Signal Connections..............................................11
4DE Transmitter Configuration......................................................................................................13
4.1 Configuration Personnel Requirements................................................................................13
4.2 MC Toolkit Software Application Overview.......................................................................13
4.3 DE Transmitter Online Configuration..................................................................................14
4.3.1 Uploading a Transmitter Configuration .......................................................................14
4.3.2 Device Information Configuration ...............................................................................16
4.3.3 General Configuration Parameters ...............................................................................17
4.3.4 DE-Specific Configuration Parameters ........................................................................18
4.3.5 DE Auxilary Configuration..........................................................................................19
4.3.6 Monitor Status Configuration.......................................................................................20
4.3.7 Saving the Configuration to File ..................................................................................23
4.3.8 DE Online Configuration Summary.............................................................................24
4.4 DE Transmitter Offline Configuration.................................................................................24
4.4.1 Overview ......................................................................................................................24
4.4.2 DE Offline File Management .......................................................................................24
4.4.3 Save to a File................................................................................................................25
4.4.4 Downloading in DE Offline Mode...............................................................................25
4.4.5 DE Offline Parameterization........................................................................................25

Page vi STT850 Series HART/DE Option User’s Manual Revision 4.0
5HART Transmitter Configuration................................................................................................ 27
5.1 Overview.............................................................................................................................. 27
5.1.1 Personnel Requirements............................................................................................... 27
5.2 Overview of FDC Homepage .............................................................................................. 28
5.2.1 Settings......................................................................................................................... 29
5.2.2 Manage DDs ................................................................................................................ 30
5.2.3 Online configuration.................................................................................................... 31
5.2.4 Offline configuration.................................................................................................... 32
5.2.5 Online Configuration Overview................................................................................... 32
5.2.6 Overview of Device Homepage................................................................................... 32
5.2.7 Tabs on the Device Home page ................................................................................... 33
5.2.8 Using FDC for various device operations.................................................................... 35
5.2.9 Device Configuration and Parameter Descriptions...................................................... 37
5.2.10 Procedure to Enter the Transmitter Tag....................................................................... 53
5.2.11 Selecting the Process Variable (PV) Unit of Temperature Measurement.................... 53
5.2.12 Setting PV URV, and LRV Range Values................................................................... 54
5.2.13 Setting Range Values for Applied Temperature.......................................................... 55
5.2.14 Saving device history................................................................................................... 55
5.2.15 Exporting device history records to FDM.................................................................... 57
5.2.16 Exporting device history records to Documint ............................................................ 58
5.2.17 Custom Views.............................................................................................................. 58
5.2.18 Offline Configuration................................................................................................... 60
6DE Calibration............................................................................................................................. 64
6.1 Overview.............................................................................................................................. 64
6.2 Calibration Recommendations............................................................................................. 64
6.3 Test Equipment Required for Calibration............................................................................ 64
6.4 Analog Output Signal Calibration........................................................................................ 65
6.5 Calibrating Range Using the MC Toolkit............................................................................ 66
6.6 Conditions for Input Calibration.......................................................................................... 66
6.7 Input Calibration Procedures Description............................................................................ 67
6.8 Input Calibration Procedure................................................................................................. 68
6.8.1 Correct Input at the Lower Range Value (LRV).......................................................... 68
6.8.2 Correct Input at URV................................................................................................... 69
6.9 DE Output Calibration......................................................................................................... 70
6.9.1 Output Calibration Preparation.................................................................................... 70
6.10 Manually Setting the Process Variable Range..................................................................... 73
6.11 Procedure to Reset Calibration ............................................................................................ 75
7HART Calibration........................................................................................................................ 77
7.1 About This Section .............................................................................................................. 77
7.1.1 About Calibration......................................................................................................... 77
7.1.2 Equipment Required .................................................................................................... 77
7.2 Analog Output Signal Calibration........................................................................................ 78
7.3 Calibrating Analog Inputs.................................................................................................... 79
7.3.1 Correcting the Lower Range Value (LRV).................................................................. 79
7.3.2 Correcting the Upper Range Value (URV).................................................................. 80
7.3.3 Resetting Calibration.................................................................................................... 80
7.3.4 STT850 Calibration Records ....................................................................................... 81

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page vii
8HART Advanced Diagnostics......................................................................................................83
8.1 About This Section...............................................................................................................83
8.2 Advanced Diagnostics..........................................................................................................83
8.2.1 Install Date....................................................................................................................83
8.2.2 PV Tracking Diagnostics..............................................................................................84
8.2.3 SV Tracking..................................................................................................................86
8.2.4 ET Tracking Diagnostics..............................................................................................87
8.2.5 % Stress Life.................................................................................................................88
8.2.6 % Service Life..............................................................................................................89
8.2.7 Operating Voltage Diagnostics.....................................................................................89
8.2.8 AVDD Tracking Diagnostics .......................................................................................90
8.2.9 Sensor CPU Temperature Tracking Diagnostics..........................................................90
8.2.10 Power Up Diagnostics..................................................................................................91
9Troubleshooting and Maintenance ...............................................................................................92
9.1 HART Diagnostic Messages ................................................................................................92
9.2 HART Diagnostic Details.....................................................................................................93
9.3 DE Diagnostic Message .......................................................................................................95
9.4 DE Diagnostic Details..........................................................................................................96
10 Using DTMs.............................................................................................................................98
10.1 Introduction..........................................................................................................................98
10.2 Components..........................................................................................................................98
10.3 Downloads............................................................................................................................98
10.4 Procedure to Install and Run the DTM.................................................................................98
10.5 STT850 Online Parameterization.........................................................................................99
10.5.1 Device Health:............................................................................................................100
10.5.2 Device Icon / Honeywell Logo:..................................................................................100
10.5.3 Process Variables: ......................................................................................................100
10.5.4 Shortcuts:....................................................................................................................100
10.6 Basic Setup Page ................................................................................................................101
10.6.1 Device Information:....................................................................................................101
10.6.2 Model Number: ..........................................................................................................101
10.6.3 Device Assembly:.......................................................................................................101
10.7 STT850 Offline Parameterization ......................................................................................102
11 HART DD Binary File Format Compatibility Matrix............................................................103
Glossary..............................................................................................................................................104

Page viii STT850 Series HART/DE Option User’s Manual Revision 4.0

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page ix
List of Figures
Figure 1 –STT850 Major Assemblies ...................................................................................................2
Figure 2 –Electronics Housing Components.........................................................................................2
Figure 3 –Typical STT850 Nameplate...................................................................................................3
Figure 4 –DE Mode Value Scaling .......................................................................................................7
Figure 5 –HART Point-to-Point and Multi-drop Value Scaling ...........................................................8
Figure 6 –MC Toolkit-Transmitter Electrical/Signal Connections.....................................................11
Figure 7 –FDC Homepage...................................................................................................................28
Figure 8 –Device Homepage...............................................................................................................32
Figure 9 –Analog Output Calibration Test Setup................................................................................65
Figure 10 –Input Calibration Connections ..........................................................................................67
Figure 11 –Output Calibration Test Connections................................................................................70
Figure 12 –DE Analog Mode Scaling and Test Connections..............................................................70
Figure 13 –Setup to Manually Set the PV LRV and URV..................................................................73

Page x STT850 Series HART/DE Option User’s Manual Revision 4.0
List of Tables
Table 1 –Features and Options.............................................................................................................. 1
Table 2 –Available Display Characteristics.......................................................................................... 4
Table 3 –User Manual Related Topics.................................................................................................. 9
Table 4 –Device Information Parameters ........................................................................................... 16
Table 5 –General Configuration Parameters....................................................................................... 17
Table 6 –DE Configuration Parameters.............................................................................................. 18
Table 8 –Monitor Parameters.............................................................................................................. 20
Table 9 –FDC homepage elements..................................................................................................... 28
Table 10 –Device health status ........................................................................................................... 33
Table 11 –HART Transmitter Parameters .......................................................................................... 37
Table 12 –Tamper Reporting Logic Implementation with Write Protect........................................... 52
Table 13 –Calibration Records ........................................................................................................... 81
Table 14 –Viewing Advanced Diagnostics......................................................................................... 83
Table 15 –Maximum PV Tracking ..................................................................................................... 84
Table 16 –Minimum PV Tracking...................................................................................................... 85
Table 17 –Maximum SV Tracking ..................................................................................................... 86
Table 18 –Minimum SV Tracking...................................................................................................... 86
Table 19 –Maximum ET Diagnostics................................................................................................. 87
Table 20 –Minimum ET Diagnostics.................................................................................................. 88
Table 21 –Operating Voltage Diagnostics.......................................................................................... 89
Table 22 –Maximum and Minimum AVDD Tracking....................................................................... 90
Table 23 –Maximum Sensor CPU Temperature Tracking ................................................................. 90
Table 24 –Minimum Sensor CPU Temperature Tracking.................................................................. 90
Table 25 –Power Up Diagnostics........................................................................................................ 91
Table 26 –HART Diagnostic Messages.............................................................................................. 92
Table 27 –HART Critical and Non-Critical Diagnostic Details......................................................... 93
Table 28 –DE Diagnostic Messages ................................................................................................... 95
Table 29 –DE Critical and Non-Critical Diagnostic Details............................................................... 96

Revision 4.0 STT 850 Series HART/DE Option User’s Manual Page 1
1 STT850 Physical and Functional Characteristics
1.1 Overview
This section is an introduction to the physical and functional characteristics of Honeywell’s family of
STT850 SmartLine Temperature Transmitters.
1.2 Features and Options
The STT850 SmartLine Temperature Transmitter is available in a variety of models for measuring
Thermocouples, RTD, Millivolts, and Volt or ohm sensor types. Table 1 lists the protocols, human
interface (HMI), materials, approvals, and mounting bracket options for the STT850.
Table 1 –Features and Options
Feature/Option
Standard/Available Options
Communication Protocols
HART, Digitally Enhanced (DE), Fieldbus
Human-Machine Interface (HMI)
Options (Basic and Advanced Display)
Basic and Advanced Digital Display
Three-button programming (optional)
Basic display language: English only
Advanced display languages: English, German, French,
Italian, Spanish, Turkish, Chinese, Japanese and Russian
Calibration
Single
Approvals (See Appendix C for
details.)
ATEX, CSA, FM, IECx, NEPSI
Mounting Brackets
Angle/flat carbon steel/304 stainless steel, Marine 304
stainless steel
Integration Tools
Experion, FDM and DTM

Page 2 STT850 Series HART/DE Option User’s Manual Revision 4.0
1.2.1 Physical Characteristics
As shown in Figure 1, the STT850 is packaged in one major assembly: the Electronics Housing. The
elements in the Electronic Housing are connected to the process sensors, measure the process
variables, respond to setup commands and execute the software and protocol for the different
temperature measurement types. Figure 2 shows the assemblies in the Electronics Housing with
available options.
Figure 1 –STT850 Major Assemblies
Figure 2 –Electronics Housing Components

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page 3
1.2.2 Functional Characteristics
The Transmitter measures process Temperature and outputs a signal proportional to the measured
process variable (PV). Available output communication protocols include analog 4 to 20 mA,
Honeywell Digitally Enhanced (DE) protocol, HART, and FOUNDATION Fieldbus.
An optional 3-button assembly is available to set up and make adjustments to the Transmitter. In
addition, a Honeywell Multi-Communication (MC) Toolkit (not supplied with the Transmitter) can
facilitate setup and adjustment procedures in the case of HART and DE. Certain adjustments can be
made through an Experion Station or a Universal Station if the Transmitter is digitally integrated with
Honeywell’s Experion or TPS/TDC 3000 control system.
1.3 STT850 SmartLine Transmitter NamePlate
The Transmitter nameplate mounted on the top of the Electronics Housing (see Figure 2) lists the
model number, physical configuration, electronics options, accessories, certifications, and
manufacturing specialties. Figure 3 is an example of a typical STT850 temperature Name plate. The
model number format consists of a Key Number with several table selections.
Figure 3 –Typical STT850 Nameplate
You can readily identify the series and basic Transmitter type from the key number. The letter in the
third digit represents one of these basic transmitter types:
T = Temperature
For a complete selection breakdown, refer to the appropriate Specification and Model Selection
Guide provided as a separate document.
1.4 Safety Certification Information
An “approvals” name plate is located on the bottom of the Electronics Assembly; see Figure 1 for
exact location. The approvals name plate contains information and service marks that disclose the
Transmitter compliance information. Refer to Appendix C of the STT850 SmartLine Transmitters
User’s Manual, document number 34-ST-25-35 for details.
1.5 Transmitter Adjustments
Span adjustments are possible in new generation STT850 SmartLine Temperature Transmitters by
using the optional three-button assembly located at the top of the Electronic Housing (see Figure 2).
However, certain capabilities are limited in the following configurations:
Without a display –Span setting only for HART and DE devices.
With a display –Complete Transmitter configuration is possible for HART & DE devices.
Key I II III IV VVI VII VIII IX
STT850 - _ - _ - _ - _ _ _ - _ _ _ - _ - _ _ _ _ - _ _, _ _, _ _ - XXXX

Page 4 STT850 Series HART/DE Option User’s Manual Revision 4.0
For HART and DE you can also use the Honeywell MC Toolkit or other third-party hand-held to
make any adjustments to an STT850 SmartLine Temperature Transmitter. Alternately, certain
adjustments can be made through the Experion or Universal Station, if the Transmitter is digitally
integrated with a Honeywell Experion or TPS system. In case of Fieldbus (FF) variants, adjustments
can be made using any Fieldbus compliant DCS or Asset management system including Honeywell
Experion PKS and Honeywell FDM. An Fieldbus compliant third party handheld configuration may
also be used.
.
1.6 Local Display Options
The STT850 Temperature Transmitter offers two display options: Basic and Advanced; see
Table 2.
Table 2 –Available Display Characteristics
Basic Display
Suitable for basic process needs
360orotation in 90oIncrements
8 configurable screens
2 lines, 16 characters
Standard engineering units
Diagnostic messaging
Supports optional 3-Button configuration and calibration
Advanced Display
360orotation in 90oincrements
Three (3) configurable screen formats:
oLarge process variable (PV)
oPV with bar graph
oPV with trend (1-999 hours, configurable)
Eight (8) screens 3-30 seconds configurable rotation timing
Standard engineering units
Diagnostic alerts and diagnostic messaging
Multiple language support: (One for East Asian language and the other for
Western language support)
oEnglish, German, French, Spanish, Turkish, Italian and Russian
oEnglish, Chinese and Japanese
Supports optional 3-Button configuration and calibration
Supports transmitter messaging and maintenance mode indication

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page 5
1.7 Optional 3-Button Assembly
The optional 3-button assembly provides the following features:
Opportunity for immediate reaction with minimal disruptions
Improved maintenance time
Potential savings on hand-held units
Suitable for all environments: hermetically sealed for long life in harsh environments
Suitable for use in all electrical classifications (flameproof, dustproof, and intrinsically safe)
The 3-button assembly is externally accessible and provides the following capabilities:
Menu-driven configuration with optional display:
oUsing increment, decrement & enter keys
oA comprehensive on screen menu guides the way
oConfigure the transmitter
oConfigure the display
oSet span
Zero and span settings without optional display

Page 6 STT850 Series HART/DE Option User’s Manual Revision 4.0
This page is left blank intentionally.

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page 7
2 Communication Modes
2.1 Overview
The STT850 SmartLine Temperature Transmitter can be configured for operation with Honeywell’s
Digitally Enhanced (DE) communication protocol, HART version 7, and Fieldbus communication.
This manual addresses the processes to configure and calibrate a Transmitter for DE and HART
communication. Refer to the STT850 FF Transmitter with FOUNDATIONFieldbus Option
Installation & Device Reference Guide, document number 34-ST-25-39 for Fieldbus details.
2.2 Digitally Enhanced (DE) Mode Communication
Although it is unnecessary to put a control loop in manual mode before communicating
with a Transmitter operating in DE mode, caution is required if there is potential for error in
identifying the operating mode.
In DE mode, the PV is available for monitoring and control purposes.
Much of the operation in the Digitally Enhanced (DE) mode is similar to that of analog operation.
The essential characteristics of DE mode operation are shown in Figure 4.
Figure 4 –DE Mode Value Scaling
As indicated at the right of Figure 4, output values of process variables, as well as communications
are transferred to a receiving device digitally. The digital coding is Honeywell proprietary, which
requires the use of DE-capable Honeywell control equipment.
The use of DE mode offers several advantages:
Process Safety: Unlike analog mode, communications devices do not bump the PV value.
Accuracy: requires less maintenance.
Digital communication: Relatively immune to small variations in circuit resistance or supply
voltage.
Facilitates Maintenance Tasks: Honeywell control systems include operating displays that
enable direct communication with transmitters operating in DE mode.

Page 8 STT850 Series HART/DE Option User’s Manual Revision 4.0
2.3 HART Mode Communication
When using MCT404/202, but before connecting to a HART transmitter, verify that the
FDC application is used and not the MC Toolkit application. When you use the MC Toolkit
application, the MCT404/202 is set for DE communications, where the current amplitude can
bump process variables in either point-to-point or in the multi-drop mode in HART.
Transmitters with HART capability have features that vary among manufacturers and with
the characteristics of specific devices. The FDC software application executing on the
MCT404/202 supports the HART Universal, Common Practice and Device Specific
Commands which are implemented in the Honeywell Transmitters.
As indicated in Figure 5, the output of a Transmitter configured for HART protocol includes two
primary modes:
Figure 5 –HART Point-to-Point and Multi-drop Value Scaling
Point-to-Point Mode, in which one Transmitter is connected via a two-conductor, 4-20 mA
current loop to one receiver.
Multi-Drop Mode, in which several Transmitters are connected through a two-conductor
network to a multiplexed receiver device.
In point-to-point mode, the value of the primary Process Variable (PV) is represented by a 4-20 mA
current loop, almost identical to that of a Transmitter operating in analog mode. You can also have
one device in analog output mode when you are configured as multi-drop. In this case, however, the
analog signal is modulated by Frequency Shift Keying (FSK), using frequencies and current
amplitude that do not affect analog sensing at the receiver. The accuracy of the analog level must be
precisely controlled for accurate sensing. HART communication will not bump process variables.
In multi-drop mode, up to 16 transmitters in HART 5 (addresses 0-15) and up to 64 transmitters in
HART6/7 (addresses 0-63) can exist on the two-conductor network.

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page 9
3 Configuration Tools and Interfaces
3.1 Overview
This section describes the tools and interfaces involved in configuring a new STT850 SmartLine
Temperature Transmitter for HART or DE communication operation. The information in this section
also applies to adjusting the configuration of a Transmitter that has been in operation and updating
one that is currently in operation.
3.2 Pre-requisites
The information and procedures in this manual are based on the assumption that personnel
performing configuration and calibration tasks are fully qualified and knowledgeable in the use of the
Honeywell MC Toolkit or MCT404/202. The name MC Toolkit or Toolkit and MCT404/202 are used
interchangeably as MCT404/202 is the model name for the Honeywell MC Toolkit product.
Furthermore, we assume that the reader is intimately familiar with the STT850 family of SmartLine
Temperature Transmitters and thoroughly experienced in the type of process application targeted for
Transmitter deployment. Therefore, detailed procedures are supplied only in so far as necessary to
ensure satisfactory completion of configuration tasks.
3.3 Application Design, Installation, Startup, and Operation
The STT850 SmartLine Temperature Transmitters User’s Manual, document number 34-ST-25-35,
provides the details for application design, installation, and startup; see Table 3 for topics.
Table 3 –User Manual Related Topics
STT850 SmartLine Temperature Transmitters Users Manual
Section 2. Application Design
Section 3. Installation and Startup
Section 4. Operation
Safety and accuracy
Diagnostics messages
Design consideration
Site evaluation
Toolkit issues
Display installation concerns
Transmitter mounting & zero-
correction
Wiring
Startup tasks and procedures
Three-button option
Failsafe direction setup
Monitoring displays
3.3.1 Organization
This information in this section is arranged in the following sequence:
MC Toolkit participation in STT850 Transmitter Setup and Configuration:
oPhysical circuit connections
oApplication components
oConfiguration for Analog, DE, and HART operation
STT850 Transmitter
oBasic and advanced displays
oHealth indications
oAbility to be configured and operate in a process system

Page 10 STT850 Series HART/DE Option User’s Manual Revision 4.0
3.4 MC Toolkit Participation
Before using the MC Toolkit, be sure that you are aware of the potential consequences of
each procedure, and that you use appropriate safeguards to avoid possible problems. For
example, if the Transmitter is an element in a control loop, the loop needs to be put in manual
mode, and alarms and interlocks (i.e., trips) need to be disabled, as appropriate, before
starting a procedure.
3.4.1 MC Toolkit Software Applications
The MC Toolkit has two software applications to work with STT850 SmartLine Temperature
Transmitters:
Field Device Configurator (FDC). This application is used for configuring, calibrating,
monitoring, and diagnosing HART devices. FDC conforms to the IEC 61804-3 EDDL
(Electronic Data Description Language) standard specification. The FDC application is an
open solution that supports devices with a registered device description (DD) file compatible
with HART Communication Foundation (HCF) requirements.
MC Toolkit. This application is used for configuring, calibrating, monitoring, and diagnosing
Honeywell Digitally Enhanced (DE) devices.
Details for working with the MC Toolkit are provided in the MC Toolkit User Manual, document #
34-ST-25-20. In subsequent sections of this manual, explicit operating instructions are provided only
in so far as necessary to complete required tasks and procedures.
3.4.2 Configuration Databases
The MC Toolkit is used to establish and/or change selected operating parameters in a Transmitter
database.
3.4.3 Configuration
Configuration can be accomplished both online and offline with the Transmitter powered up and
connected to the MC Toolkit. Online configuration immediately changes the Transmitter operating
parameters. For offline configuration, Transmitter operating characteristics are entered into Toolkit
memory for subsequent downloading to a Transmitter.
When you set up or configure a Transmitter, it can take up to 30 seconds for the value
to be stored in it. If you change a value and Transmitter power is interrupted before the
change is copied to nonvolatile memory, the changed value will not be moved to nonvolatile
memory.