Honeywell UDC2300 PDF - Lesman Instrument Company

Honeywell UDC2300 PDF - Lesman Instrument Company
Modbus® RTU Serial Communications
User Manual
Configuration Interface for UDC2300
Supplement to 51-52-25-66
51-52-25-75
5/99
Copyright, Notices, and Trademarks
Printed in U.S.A. – © Copyright 1999 by Honeywell Inc.
Revision O – 5/99
While this information is presented in good faith and believed to be
accurate, Honeywell disclaims the implied warranties of
merchantability and fitness for a particular purpose and makes no
express warranties except as may be stated in its written agreement
with and for its customer.
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.
Modbus is a registered trademark of MODICON, Inc.
Windows is an addressed trademark of Microsoft Inc.
The omission of a name from this list is not to be interpreted that the
name is not a trademark.
Reference: Modicon Modbus Protocol Reference Guide – PI-MBUS-300 Rev. G
Honeywell
Industrial Automation and Control
Automation College
2820 West Kelton Lane
Phoenix, AZ 85023
(602) 313-5669
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About This Document
Abstract
This document provides configuration information specific to Honeywell’s UDC2300 controllers and
should be used in tandem with document number 51-52-25-66, Modbus® RTU Serial Communications
User Manual.
Contacts
The following list identifies important contacts within Honeywell.
Service
Contact
Technical Support
Please have your instrument’s complete model number, serial number,
and software version available.
1-800-423-9883
List of frequently asked questions and their answers
1-888-423-9883
(Honeywell’s TACFACS—
USA and Canada only)
http://support.totalplant.honeywell.com
(Honeywell’s web site)
References
Publication Title
Publication Number
UDC 2300 Universal Digital Controller Product Manual
51-52-25-73
UDC2300 Universal Digital Limit Controller Product Manual
51-52-25-74
UDC2300 Universal Digital Controllers RS422/485 ASCII
Communications Option Product Manual
51-52-25-85
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Modbus® RTU Serial Communications User Manual
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Contents
1.
OVERVIEW OF MODBUS RTU CONFIGURATION INTERFACE...........................................................1
2.
MODBUS RTU FUNCTION CODES .................................................................................................... ...........3
2.1
GENERAL INFORMATION .................................................................................................................................3
2.2
FUNCTION CODE 20 (14H) - READ CONFIGURATION REFERENCE DATA .........................................................4
2.2.1
Read Configuration Examples ...............................................................................................................6
2.3
FUNCTION CODE 21 (15H) - WRITE CONFIGURATION REFERENCE DATA .......................................................8
2.3.1
Write Configuration Examples ............................................................................................................10
3.
READ, WRITE, AND OVERRIDE PARAMETERS.....................................................................................11
3.1
OVERVIEW....................................................................................................................................................11
3.2
READING CONTROL DATA ............................................................................................................................12
3.3
READ OPTIONS STATUS ................................................................................................................................13
3.4
MISCELLANEOUS READ ONLY’S ...................................................................................................................14
3.4.1
Register Addresses for Read Only’s ....................................................................................................14
3.4.2
Error Status Definitions.......................................................................................................................14
3.5
SETPOINTS ....................................................................................................................................................16
3.6
USING A COMPUTER SETPOINT (OVERRIDING CONTROLLER SETPOINT) .......................................................17
3.7
PV OR SETPOINT OVERRIDE SELECTIONS .....................................................................................................18
3.8
READING OR CHANGING THE OUTPUT...........................................................................................................19
3.9
LOCAL SETPOINT/PID SELECTION/SETPOINT RAMP STATUS ........................................................................20
3.10 CONFIGURATION PARAMETERS.....................................................................................................................23
3.10.1 Timing..................................................................................................................................................24
3.10.2 Tuning..................................................................................................................................................24
3.10.3 SP Ramp/Rate/Program.......................................................................................................................27
3.10.4 Accutune ..............................................................................................................................................29
3.10.5 Algorithm .............................................................................................................................................29
3.10.6 Input 1..................................................................................................................................................30
3.10.7 Input 2..................................................................................................................................................33
3.10.8 Control.................................................................................................................................................35
3.10.9 Communications ..................................................................................................................................36
3.10.10 Alarms ................................................................................................................................................37
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Tables
Table 2-1 Integer Parameter Type _______________________________________________________ 3
Table 2-2 Floating Point Parameter Type _________________________________________________ 3
Table 2-3 Register Address Format for Function Code 20 ____________________________________ 5
Table 2-4 Register Address Format for Function Code 21 ____________________________________ 9
Table 3-1 Control Data Parameters _____________________________________________________ 12
Table 3-2 Option Status ______________________________________________________________ 13
Table 3-3 Miscellaneous Read Only’s ___________________________________________________ 14
Table 3-4 Error Status Definitions ______________________________________________________ 14
Table 3-5 Setpoint Code Selections _____________________________________________________ 16
Table 3-6 Setpoint Associated Parameters________________________________________________ 16
Table 3-7 Computer Setpoint Selection __________________________________________________ 17
Table 3-8 Computer Setpoint Associated Parameters _______________________________________ 17
Table 3-9 PV or Setpoint Override Selections _____________________________________________ 18
Table 3-10 Reading or Changing the Output ______________________________________________ 19
Table 3-11 Associated Output Codes____________________________________________________ 19
Table 3-12 LSP/PID Set Selection and Setpoint Ramp Status_________________________________ 21
Table 3-13 ID Code 250 Writes ________________________________________________________ 22
Table 3-14 Set-up Group – Timer ______________________________________________________ 24
Table 3-15 Set-up Group – Tuning _____________________________________________________ 24
Table 3-16 Set-up Group – Setpoint Ramp/Rate ___________________________________________ 27
Table 3-17 Set-up Group – Adaptive Tune _______________________________________________ 29
Table 3-18 Set-up Group – Algorithm ___________________________________________________ 29
Table 3-19 Set-up Group – Input 1______________________________________________________ 30
Table 3-20 Set-up Group – Input 2______________________________________________________ 33
Table 3-21 Set-up Group – Control _____________________________________________________ 35
Table 3-22 Set-up Group – Communications______________________________________________ 36
Table 3-23 Set-up Group – Alarms _____________________________________________________ 37
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Figures
Figure 3-1 Option Status Information ___________________________________________________ 13
Figure 3-2 Code 250 Read Indications __________________________________________________ 21
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Overview of Modbus RTU Configuration Interface
1. Overview of Modbus RTU Configuration Interface
This User Manual is intended to accompany the Modbus RTU Serial Communications User
Manual (51-52-25-66). It describes the function codes needed to upload and download the
configuration from a host computer into the UDC2300 controller.
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Overview of Modbus RTU Configuration Interface
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Modbus RTU Function Codes
2. Modbus RTU Function Codes
2.1 General Information
The UDC2300 uses a subset of the standard Modbus RTU function codes to provide access to
process-related information. Several MODICON function codes are implemented. It is appropriate
to define instrument-specific "user-defined" function codes. Where differences occur between the
two protocols it will be noted. Several standard Modbus RTU function codes are supported.
Configuration ID Tags
The UDC2300 function codes 20 and 21 use the RS422/485 tag IDs for accessing configuration
and process-related data. These tags are fully explained in Section 3.10.
The tag IDs represent the register addresses used in the Request Message.
Register Address Structure
Table 2-1 Integer Parameter Type
Register
Numbers
(Dec)
1
2
3
4
5
6
7
8
9 to 13
Name
Access
Type = 1
Attribute
NOT SUPPORTED
NOT SUPPORTED
Value (16 bit integer)
Not Used
Low Range (16 bit integer)
Not Used
High Range (16 bit Integer)
Not Used
Description Text (ASCII string)
Read / Write
NOT SUPPORTED
NOT SUPPORTED
NOT SUPPORTED
NOT SUPPORTED
NOT SUPPORTED
NOT SUPPORTED
Notes
16-bit Unsigned Integer
1 = Read Only,
2 = Read/Write
Table 2-2 Floating Point Parameter Type
Register
Numbers
(Dec)
1
2
3
4
5
6
7
8
9 to 13
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Name
Access
Type = 2
Attribute
NOT SUPPORTED
NOT SUPPORTED
Value (float high word)
Value (float low word)
Low Range (float high word)
Low Range (float low word)
High Range (float high word)
High Range (float low word)
Description Text (ASCII string)
Read / Write
NOT SUPPORTED
NOT SUPPORTED
NOT SUPPORTED
NOT SUPPORTED
NOT SUPPORTED
NOT SUPPORTED
Notes
IEEE Floating Point
1 = Read Only,
2 = Read/Write
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Modbus RTU Function Codes
Register Count
The register count depends on the data format of the registers being read or written.
Integer data is represented in sixteen bits and is transferred high byte first.
Floating point data is transferred in IEEE 32-bit format.
The register count definitions are:
0001 = Integer Data
0002 = Floating Point Data
2.2 Function Code 20 (14h) - Read Configuration Reference Data
Description
Function code 20 (14 Hex) is used in the UDC2300 to read information stored in the UDC2300
configuration database. Each configuration item is explicitly addressed by a file number and
register address. IEEE 32-bit floating point and 16-bit integer formats are supported.
Request and Response Formats
The Request and Response formats for Function code 20 (14 Hex) are shown below. Details for
each block reference follow.
Request Message Format
Slave
Address
Function
Code 14
Byte
Count
Reference
Type
Reference
Type
Type
File
Number
Register
Address
Register
Count
File
Number
Register
Address
CRC
Data
Register
Count
CRC
Data
Response Message Format
4
Slave
Address
Function
Code 14
Byte
Count
Data
Byte
Count
Reference
Type
Data
Data
Reference
Data
Type
Data
Byte
Count
Reference
Type
Data
Data
Data
Data
CRC
Data
CRC
Data
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Modbus RTU Function Codes
Byte Count
The Byte Count equals the number of bytes transmitted in either the request or response message
and will be the minimum number required to transmit all requested data.
Data Byte Count
The Data Byte Count is the number of data bytes of the sub response including the Reference Type
but not including itself. A floating point sub response has four bytes of data and one byte
representing the reference type making the data byte count equal to five.
Reference Type Definitions
The Reference Type definition is always 06.
See examples in Subsection 2.2.1
File Number
The file number word contains the register number from the register address structure tables on
page 3. Although the register address structure tables indicate up to 13 data registers are available
for access, only register address 3 is currently supported.
Register Address
The register address word represents the tag ID number for the parameter(s) being accessed. The
register address word is made up of two bytes—the MSB = 00 always. The LSB contains the
RS422 tag ID number. The tag ID numbers represent the parameter’s register address(es). See
Section 3 for the tag ID numbers.
Table 2-3 Register Address Format for Function Code 20
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Register
Address(es)
(Decimal)
Register
Address(es)
(Hex)
Format
001 to 125
0001 to 007D
analog formatted data
(2 registers – IEEE 32-bit floating point)
128 to 255
0080 to 00FF
integer formatted data
(1 register – 16-bit integer)
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Modbus RTU Function Codes
2.2.1 Read Configuration Examples
Example #1
The following is an example of a request to read the Gain 1 value using Function code 20.
Request Message (Read (Gain 1) = ID Tag 001)
02 14 07 06 00 03 00 01 00 02 (CRC16)
Where:
02
14
07
06
00,03
00,01
00 02
(CRC16)
=
=
=
=
=
=
=
Address
Function Code 20 (14 hex)
Byte Count
Reference Type
File Number (Access Data Value)
Register Address (Standard Access Gain 1 - Tag ID #1)
Register Count (Floating Point Data)
This is the response to the above request.
Response Message
02 14 06 05 06 3F C0 00 00 (CRC16)
Where:
02
14
06
05
06
3F C0 00 00
(CRC16)
6
=
=
=
=
=
=
Address
Function Code 20 (14 Hex)
Byte Count
Sub Message Length
Reference Type (IEEE Floating Point)
1.50 (Value of Proportional Band)
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Modbus RTU Function Codes
Read Configuration Examples, continued
Example #2
The following is another example of a request and response message using Function code 20.
Request Message (Read LSP #1 = ID Tag 39 and LSP #2 = ID Tag 53)
02 14 0E 06 00 03 00 27 00 02 06 00 03 00 35 00 02 (CRC16)
Where:
02
14
0E
06
00,03
00,27
00,02
06
00,03
00,35
00,02
(CRC16)
=
=
=
=
=
=
=
=
=
=
=
Address
Function Code 20 (14 Hex)
Byte Count
Reference Type (IEEE Floating Point)
File Number (Access Data Value)
Register Address (Standard Access LSP #1 - ID Tag 39)
Register Count to read (Floating Point Data)
Reference Type (IEEE Floating Point)
File Number (Access Data Value)
Register Address (Standard Access LSP #2 - ID Tag 53)
Register Count to read (Floating Point Data)
This is the response to the above request.
Response Message
02 14 0C 05 06 43 C8 00 00 05 06 44 60 00 00 (CRC16)
Where:
02
14
0C
05
06
43 C8 00 00
05
06
44 60 00 00
(CRC16)
=
=
=
=
=
=
=
=
=
Address
Function Code 20 (14 Hex)
Byte Count
Data Byte Count (Sub Message Length)
Reference Type (IEEE Floating Point)
400.0 (Value of Local Setpoint #1)
Data Byte Count (Sub Message Length)
Reference Type (IEEE Floating Point)
896.0 (Value of Local Setpoint #2)
Continued next page
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7
Modbus RTU Function Codes
2.3 Function Code 21 (15h) - Write Configuration Reference Data
Introduction
Function Code 21 (15 Hex) is used in the UDC2300 to allow writes of integer and floating point
values to the UDC2300 configuration database and override values.
The configuration database of the UDC2300 is located in EEROM. The override values are stored
in RAM.
Integer format is used to write to “Digital” configuration items. Floating Point format is used to
write to “Analog” configuration items as defined by the configuration ID tags.
Write Restrictions
Care should be taken not to exceed the 100,000 write limit of the UDC2300 EEROM.
Request and Response Formats
The Request and Response formats for Function code 21 (15 Hex) are shown below. Details for
each block reference follow.
Request Message Format
Slave
Address
Data
Function
Code 15
Data
Byte
Count
Reference
Type
File
Number
Data
Data
File
Number
Register
Address
Register
Count
CRC
Data
CRC
Data
Response Message Format (echo back of request)
Slave
Address
Data
Function
Code 15
Data
Byte
Count
Reference
Type
File
Number
Data
Data
File
Number
Register
Address
Register
Count
CRC
Data
CRC
Data
The register address is interpreted by the UDC2300 as the tag ID configuration number.
Reference Type Definitions
The Reference Type definition is always 06.
See examples in Subsection 2.3.1
File Number
The file number word contains the register number from the register address structure tables on
page 3. Although the register address structure tables indicate up to 13 data registers are available
for access, only register address 3 is currently supported.
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Modbus RTU Function Codes
Register Address
The register address is used to designate the tag ID number for the parameter being accessed. The
register address is made up of two bytes—the MSB = 00 always. The LSB contains the RS422 tag
ID number. The tag ID numbers represent the parameter’s register address(es). See Section 3 for
the tag ID numbers.
Table 2-4 Register Address Format for Function Code 21
Register
Address(es)
(Dec)
Register
Address(es)
(Hex)
001 to 125
0001 to 007D
Format
analog formatted data
(2 registers – IEEE 32-bit floating point)
128 to 215
0080 to 00D7
& 255
& 00FF
integer formatted data
(2 registers – IEEE 32-bit floating point)
Unrestricted Registers
As mentioned previously, all register data is stored in the EEROM of the UDC2300 with some
exceptions. These exceptions were made to allow write access to override information. The
registers, which are designated as Override values, are listed below. These registers do not have
restrictions on the number of writes.
ID Tag
Register Number
123
125
(7Bh)
(7Dh)
UDC2300 Usage
Output Override
Computer Setpoint
Restrictions on Parameter Numbers in One Message
The maximum number of writeable parameters per write request is 1.
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Modbus RTU Function Codes
2.3.1 Write Configuration Examples
Example #1
The following is an example of a request to write the Gain 1 value using Function code 21 (15
Hex).
Request Message (Write Gain 1= 1.5 “ID Tag 1”)
02 15 0B 06 00 03 00 01 00 02 3F C0 00 00 (CRC16)
Where:
02
15
0B
06
00 03
00 01
00 02
3F C0 00 00
(CRC16)
=
=
=
=
=
=
=
=
Address
Function Code 21 (15 Hex)
Byte Count
Reference Type (IEEE Floating Point)
File Number (Access Data Value)
Register Address (Standard Access - Gain 1 - ID Tag 1)
Register Count (Floating Point Data)
1.50
This is the response to the above request.
Response Message (The response is an echo of the request)
02 15 0B 06 00 01 00 02 00 02 3F C0 00 00 (CRC16)
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Read, Write, and Override Parameters
3. Read, Write, and Override Parameters
3.1 Overview
Introduction
This section contains information concerning Reading, Writing, and Overriding parameters in the
UDC 2300 Process Controller. There are two types of parameters:
•
Data Transfer—These parameters include reading control data, option status, and reading or
changing setpoints or output.
•
Configuration Data—All the configuration data is listed in the order in which it appears in
the controller.
Each type of parameter has the identifying codes listed with it.
Section Contents
This section contains the following topics:
Topic
See Page
3.2 Reading Control Data _____________________________________________ 12
3.3 Read Option Status _______________________________________________ 13
3.4 Miscellaneous Read Only’s _________________________________________ 14
3.5 Setpoints _______________________________________________________ 16
3.6 Using a Computer Setpoint _________________________________________ 17
3.7 PV or Setpoint Override ___________________________________________ 18
3.8 Reading or Changing the Output _____________________________________ 19
3.9 Local Setpoint/PID Set Selection and Setpoint Ramp Status________________ 20
3.10 Configuration Parameters Set-up Groups______________________________ 23
•
•
•
•
•
•
•
•
•
•
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Timing _____________________________________________________ 24
Tuning _____________________________________________________ 24
SP Ramp/SP Rate/SP Program __________________________________ 27
Accutune ___________________________________________________ 29
Algorithm___________________________________________________ 29
Input 1 _____________________________________________________ 30
Input 2 _____________________________________________________ 33
Control_____________________________________________________ 35
Communications _____________________________________________ 36
Alarms _____________________________________________________ 37
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Read, Write, and Override Parameters
General Information
Analog Parameters
•
Whenever analog register addresses 0001 through 0072 (those that can be changed via
communications) are changed, a Write cycle occurs after receipt of the message and the
response is returned.
Override Parameters
•
Override analog register addresses 0078, 007B and 007D (PV, output, and computer setpoint)
are not stored in nonvolatile memory. They can be changed as frequently as desired with no
effect on nonvolatile memory retentivity, but the controller must remain in the slave mode.
Digital Parameters
•
Whenever digital configuration register addresses 0080 through 00FA are updated via
communications, the nonvolatile memory is updated as soon as the message is received.
3.2 Reading Control Data
Overview
You can Read the following control data from the UDC controller.
•
Input 1
•
Input 2
•
PV
•
Internal RV
Register Addresses
Use the identifying codes listed in Table 3-1 to read the specific items.
A Write request for these codes will result in an Error message.
Table 3-1 Control Data Parameters
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Input #1
0076
118
FP
RD
In Engineering Units or
Percentage
Input #2
0077
119
FP
RD
In Engineering Units or
Percentage
PV
0078
120
FP
RD
In Engineering Units or
Percentage
Internal RV
0079
121
FP
RD
In Engineering Units or
Percentage
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Read, Write, and Override Parameters
3.3 Read Options Status
Read
Doing a Read of register address 00B9 listed in Table 3-2 will tell you which of the available
options are enabled / installed or disabled / not installed.
Table 3-2 Option Status
Parameter
Description
Register
Address
Hex
Option Status
(Read only)
00B9
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
185
INT
RD
See
Figure 3-1.
The data field in the response message will be a decimal number from 0 to 255. Convert the
decimal number to binary as shown in
Figure 3-1 to determine which options are or are not active.
0 to 255
Convert decimal to binary
Input 2
0 = disabled
1 = enabled
Input 2
PWA Present
0 = not installed
1 = installed
SP Programming
0 = not installed
1 = installed
EXAMPLE: 21
Binary
Input 2 – enabled
0 0 0 1 0 1 0 1
U
Input 2 PWA – installed
SP Programming –installed
24190
Figure 3-1 Option Status Information
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Read, Write, and Override Parameters
3.4 Miscellaneous Read Only’s
3.4.1 Register Addresses for Read Only’s
The identifying register addresses listed in Table 3-3 represent some information that is Read only.
No Writes allowed.
Table 3-3 Miscellaneous Read Only’s
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Software Type
009D
157
INT
RD
READ only (UDC 2300)
A1 = Basic UDC 2300 software
A2 = Limit Controller
Software Version
00A7
167
INT
RD
READ only
0 to 255
UDC Error Status
00FF
255
INT
RD
See below READ/WRITE*
01 = Emergency Manual
02 = Failsafe
04 = Working Calibration Checksum Error
08 = Configuration Checksum Error
10 = Factory Calibration Error
20 = Hardware Failure
40 = Restart after Shed
80 = Configuration/Calibration Memory
Changed
(Definitions are listed
in Table 3-4)
*Write to clear.
FOR EXAMPLE:
If Read returns C0 [restart after shed (40) plus configuration change (80)]
Write anything to Register address 00FF.
Read returns 00 (clear).
3.4.2 Error Status Definitions
Table 3-4 lists the UDC error status codes and their definitions.
Table 3-4 Error Status Definitions
Code
Error
Definitions
01
Emergency
Manual
Indicates that the output of the unit, which has been in slave
operation, is under manual control locally. Error remains until local
control is relinquished at the controller.
02
Failsafe
Error occurs whenever the control reverts to failsafe operation and
remains as long as the condition exists.
04
Working
Calibration
Checksum Error
Indicates that an error exists in the working calibration data. Re-select
the inputs to load factory calibration data or field calibrate the inputs.
Table continued on next page
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Read, Write, and Override Parameters
Table 3-4 Error Status Definitions, continued
Code
Error
Definitions
08
Configuration
Checksum Error
Error exists in the configuration data. Verify configuration data at the
keyboard. Checksum will be recomputed by stepping the controller
through the status tests.
10
Factory
Calibration Error
Error exists in the factory calibration data and remains as long as the
condition exists.
20
Hardware Failure
Indicates either a RAM test failure or Input 1, Input 2 failure on two
consecutive conversions.
40
Restart After Shed Error occurs whenever a shed of slave override is performed. Error is
reset following a Write command to register address 00FF (064).
80
Configuration/
Calibration
Memory Changed
5/99
Error occurs whenever shed, configuration, or calibration changed.
Also occurs whenever there is a change of state in 001, 002, 004,
008, or 016. Error is reset following a Write command to register
address 00FF.
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Read, Write, and Override Parameters
3.5 Setpoints
Overview
You can use three separate local setpoints in the UDC Controller. The identifying register
addresses listed in Table 3-5 allow you to select which setpoint you want to use and to enter a
value in Engineering Units (whichever is selected at register address 00A1) for that setpoint via
communications.
Register Addresses
Make your selection using register address 00AD and enter the value for the setpoint chosen using
register address in Table 3-5.
Table 3-5 Setpoint Code Selections
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Local Setpoint #1
0027
039
FP
R/W
Value within the setpoint range
limits
Local Setpoint #2
0035
053
FP
R/W
Value within the setpoint range
limits
Number of Local
Setpoints
00AD
173
INT
R/W
00 = Local Setpoint #1 only
01 = 2nd Local Setpoint via
keyboard or communications
Associated Parameters
Refer to Table 3-6 to display or change any of the parameters associated with the setpoint.
Table 3-6 Setpoint Associated Parameters
Parameter
Register Address
Hex
Decimal
Setpoint Limits
0007, 0008
007, 008
Computer Setpoint
007D
125
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Read, Write, and Override Parameters
3.6 Using a Computer Setpoint (Overriding Controller Setpoint)
Overview
You can use a setpoint generated from the computer to override the setpoint being used by the
controller. The value generated by the computer will have ratio and bias applied by the controller.
Register Addresses
Use the identifying code in Table 3-7 to enter the computer setpoint.
Table 3-7 Computer Setpoint Selection
Parameter
Description
Register
Address
Hex
Computer Setpoint
007D
Data
Type
Access
FP
R/W
Data Range or
Enumerated Selection
Decimal
125
Value from computer with Ratio
and Bias applied by the controller.
Within the Setpoint Range Limits in
Engineering Units or Percent.
Shed
The computer setpoint override will continue until SHED from communications occurs or the
controller is placed into monitor mode through communications. Doing periodic SLAVE READS
within the shed time will allow the override to continue until communication is stopped and shed
time elapses.
ATTENTION
0 Shed (code 154) allows the override to continue indefinitely or until the reset shed timer register
address 1B90 is written using function code 6. Any data value can be written because it is
ignored.
(See override selections in Table 3-9.)
When SP is overridden, the upper display becomes "CSP," (momentarily, and the lower display
contains the prompt CS followed by the value CSXXXX).
Associated Parameters
Refer to Table 3-8 for the codes to display or change any of the parameters associated with the
computer setpoint.
Table 3-8 Computer Setpoint Associated Parameters
Parameter
Register Address
Hex
Setpoint Limits
Local Setpoint #1
Local Setpoint #2
Local Setpoint Selection
Computer Setpoint Ratio
Computer Setpoint Bias
5/99
0007, 0008
0027
0035
00AD
0015
0016
Decimal
007, 008
039
053
173
021
022
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Read, Write, and Override Parameters
3.7 PV or Setpoint Override Selections
Overview
You can Read the present override status or the PV or setpoint, or you can do a Write transaction
to cancel the override.
Register Addresses
Use the identifying code in Table 3-9 to Read or Write your selection.
Table 3-9 PV or Setpoint Override Selections
Parameter
Description
Register
Address
Hex
PV or Setpoint
Override Selection
00B7
Data
Type
Access
INT
R/W
Data Range or
Enumerated Selection
Decimal
183
01 = Input 1
02 = Input 2
04 = PV
08 = Setpoint
Limit Controller (Read Only)
0 = Unlatched
1 = Latched Relay
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Read, Write, and Override Parameters
3.8 Reading or Changing the Output
Overview
You can read the output of a particular UDC controller (Read transaction) or you can change it to
suit your needs. (Do a Write transaction.)
ID Codes
Use the identifying code in Table 3-10 to monitor (Read) or change (Write) the output (in manual
only).
ATTENTION
•
To Write (change) the output, the controller must first be in manual mode.
Table 3-10 Reading or Changing the Output
Parameter
Description
Register
Address
Hex
Output
007B
Data
Type
Access
FP
R/W
Data Range or
Enumerated Selection
Decimal
123
–5 to +105% of full span (current
output)
0 to 100% (relay type output)
Associated Parameters
Refer to Table 3-11 for the codes required to display or change any of the parameters associated
with the output.
Table 3-11 Associated Output Codes
Parameter
Register Address
Hex
Decimal
Output Limits
000E, 000F
014, 015
Failsafe Output Values
0028
040
Output Deadband
0012
018
Output Hysteresis
0013
019
Output Type
00A0
160
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Read, Write, and Override Parameters
3.9 Local Setpoint/PID Selection/Setpoint Ramp Status
Overview
Identifying code 250 lets you monitor or make selections for:
•
Tuning Parameter Set #1 or #2
If Tuning Sets selection is “two keyboard” code 172 = 001
•
Local Setpoint #1, #2
If “2 Local Setpoints” is selected 131 = 0, 173 = 1
•
Run or Hold Setpoint Ramp or a Setpoint Program Data
If SP Ramp or SP Program is enabled 178 = 1 Program, 178 = 2 Ramp
Read
Table 3-12 is a list of numbers that could be returned by the UDC 2300 controller. When a Read is
requested for this ID Code (250) you can determine which parameters are active from this table.
Write
To Write information to the controller, select what parameters you want from Table 3-12 and enter
the associated number in the data field of the Write request.
FOR EXAMPLE:
•
Current selection of TUNING SET #1
•
Maintain LOCAL SETPOINT #1
•
Maintain SP Ramp in Hold
•
CHANGE to TUNING SET #2
READ 250 response is 00 or 02
WRITE 250 (07)
READ 250 Response is 08 or 010
ATTENTION
•
20
Some of the numbers are Read only.
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Read, Write, and Override Parameters
Table 3-12 LSP/PID Set Selection and Setpoint Ramp Status
Parameter
Description
Register
Address
Hex
Enhanced Function
00FA
Data
Type
Access
INT
R
Data Range or
Enumerated Selection
Decimal
250
See code 250 indications listed in
Figure 3-2. Note: The numbers in
the table below are represented in
decimal.
Tuning Set #2 Selection
Local Setpoint #2 Selection
Tuning Set #2 Selection
Local Setpoint #1 Selection
Tuning Set #1 Selection
Local Setpoint #2 Selection
Tuning Set #1 Selection
Local Setpoint #1 Selection
Setpoint Ramp or Program Data Selections
SP Ramp, Enabled Not in Progress
00
08
16
24
SP Ramp in Progress, Hold
02
10
18
26
SP Ramp in Progress, Run
03
11
19
27
SP Program, Enabled Not in Progress, (READ)
04
12
20
28
SP Program in Progress, Hold (READ/WRITE)
06
14
22
30
SP Program in Progress, Run (READ/WRITE)
07
15
23
31
24192A
Figure 3-2 Code 250 Read Indications
A write of code 250 lets you change the SP ramp status as well as the local setpoint or tuning set
selection. Refer to Table 3-13.
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Read, Write, and Override Parameters
Table 3-13 ID Code 250 Writes
Parameter
Description
Register
Address
Hex
Write
00FA
Local Setpoint/PID
Set Selection and
SP Ramp Status
Data
Type
Access
INT
W
Data Range or
Enumerated Selection
Decimal
250
00 = Abort SP Ramp
01 = Run SP Ramp
02 = Hold SP Ramp
03 = Start SP Ramp
04 = Change to Local Setpoint #1
05 = Change to Local Setpoint #2
06 = Change to PID Tuning Set #1
07 = Change to PID Tuning Set #2
ATTENTION
To enable or disable the setpoint ramp, refer to Identifying Code 150.
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Read, Write, and Override Parameters
3.10 Configuration Parameters
Overview
Listed on the next pages are the identifying codes for the parameters in the various Set-up Groups
in the UDC2300 Process Controller. The Set-up Groups and their table numbers are listed below.
Most of the parameters are configurable through the hosts. Some are Read Only and are indicated
as such and cannot be changed.
Set-up Group
Table Number
Timing ______________________________________________________ Table 3-14
Tuning ______________________________________________________ Table 3-15
SP Ramp/Rate/Program _________________________________________ Table 3-16
Accutune ____________________________________________________ Table 3-17
Algorithm____________________________________________________
Input 1 ______________________________________________________
Input 2 ______________________________________________________
Control _____________________________________________________
Communications ______________________________________________
Alarms ______________________________________________________
Table 3-18
Table 3-19
Table 3-20
Table 3-21
Table 3-22
Table 3-23
Reading or Writing
Do a Read or Write, depending on your requirements, using the identifying code and format code
listed in the tables. The range or selection available for each range is listed in the tables.
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Read, Write, and Override Parameters
3.10.1 Timing
Table 3-15 lists all the register addresses and ranges or selections for the function parameters in the
Set-up Group Timing.
Table 3-14 Set-up Group – Timer
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Timer
00D8
216
INT
R/W
0 = Disable
1 = Enable
Period
0063
099
FP
R/W
00.00 TO 99.59
Start (Initiation)
00D9
217
INT
R/W
0 = Key (Run/Hold Key)
1 = Alarm 2
LDISP (Selection)
00DA
218
INT
R/W
6 = TI REM
1 = Elapsed Time
Timer Reset
00D6
214
INT
R/W
0 = Key (Run/Hold Key)
1 = AL1 (Alarm 1 or Key)
Timer Increment
00D7
215
INT
R/W
0 = Min (Counts hr/min)
1 = Sec (Counts min/sec)
3.10.2 Tuning
Table 3-15 lists all the register addresses and ranges or selections for the function parameters in the
Set-up Group Tuning.
Table 3-15 Set-up Group – Tuning
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Gain #1 or PB
Note 1
0001
001
FP
R/W
0.01 to 1000 Gain
0.1 to 9999 PB
Rate #1
Note 1
0002
002
FP
R/W
0.00 to 10.00
Reset #1
Note 1
0003
003
FP
R/W
0.02 to 50.00
Manual Reset
000D
013
FP
R/W
–100 to +100
Table continued on next page
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Read, Write, and Override Parameters
Table 3-15 Set-up Group – Tuning, continued
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Gain #2 or PB #2
Note 1
0004
004
FP
R/W
0.01 to 1000
Rate #2
Note 1
0005
005
FP
R/W
0.00 to 10.00
Reset #2
Note 1
0006
006
FP
R/W
0.02 to 50.00
Cycle Time #1
009E
158
INT
R/W
1 to 120 seconds
Cycle Time #2
009F
159
INT
R/W
1 to 120 seconds
Lockout
(keyboard only)
0084
132
INT
R/W
0 = No Lockout
Changes to data are
always possible via
communications
regardless of this
configuration.
1 = Calibration Locked out
2 = Timer, Tuning, SP Ramp,
Accutune are read/write
3 = Tuning and SP Ramp are
read/write, no other
parameters are available
4 = Maximum Lockout
Table continued on next page
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25
Read, Write, and Override Parameters
Table 3-15 Set-up Group – Tuning, continued
Parameter
Description
Register
Address
Hex
Keyboard Lockout
00BF
Data
Type
Access
INT
R/W
Data Range or
Enumerated Selection
Decimal
191
0 = All keys enabled
1 = Manual Auto Key Locked
2 = Setpoint Select Key Locked
3 = Manual/Auto and Setpoint
Select Keys Locked
4 = Run Hold Key Locked
5 = Run Hold Key and
Manual/Auto Keys Locked
6 = Run Hold Key and Setpoint
Select Keys Locked
7 = Run Hold, Setpoint Select, and
Manual/Auto Keys Locked
8 = Autotune Key Locked
9 = AT + MA
10= AT + SS
11= AT + SS + MA Locked
12= AT + RH Locked
13= AT + RH + MA Locked
14= AT + RH + SS Locked
15= AT + RH + SS + MA Locked
NOTE 1: Writes to these locations are not available when Accutune is enabled.
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Read, Write, and Override Parameters
3.10.3 SP Ramp/Rate/Program
Table 3-16 lists all the register addresses and ranges or selections for the function parameters in
Set-up Group Setpoint Ramp/Rate.
Table 3-16 Set-up Group – Setpoint Ramp/Rate
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Setpoint Program
Ramp Selection
00B2
178
INT
R/W
0 = SP Program, Rate, and Ramp
Disabled
1 = SP Program Enabled
2 = SP Ramp Enabled
3 = SP Rate Enabled
SP Ramp
0096
150
INT
R/W
0 = OFF
2 = Enabled
Single SP Ramp Time
00AE
174
INT
R/W
0 to 255 (minutes)
Final Ramp SP Value
001A
026
FP
R/W
PV Range in Engineering Units
Rate Up (EU/HR)
006C
108
FP
R/W
0 to 9999
Rate Down (EU/HR)
006D
109
FP
R/W
0 to 9999
Start Segment #
00AF
175
INT
R/W
1 to 11
End Segment #(Soak)
00B0
176
INT
R/W
2, 4, 6, 8, 10, or 12
Engineering Units or
Ramp Segments
00B6
182
INT
R/W
0 = HRS:MIN
1 = Degrees/Minute
Program Recycles
00B1
177
INT
R/W
0 to 99
Guaranteed Soak
Deviation
0057
087
FP
R/W
0 to 99.9 (0 = no soak)
Program End State
00B5
181
INT
R/W
0 = Disable SP Program
1 = Hold at Program End
Controller Status at
Program End
00B4
180
INT
R/W
0 = Last Setpoint and Mode
1 = Manual, Failsafe Output
Reset SP Program
(ToBEGIN)
00B3
179
INT
R/W
0 = Disable
1 = Via Keypad
2 = Rerun
Segment #1 Ramp
Time
0039
057
FP
R/W
99.59 (0-99 Hrs:0-59 Min) or
0 to 999 (Degrees/Minute)
Segment #2 Soak
Setpoint Value
003A
058
FP
R/W
Within Setpoint Limits
Segment #2 Soak
Time
003B
059
FP
R/W
99.59 (0-99 Hrs:0-59 Min)
SP Rate
SP Program
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Read, Write, and Override Parameters
Table 3-16 Set-up Group – Setpoint Ramp/Rate, continued
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Segment #3 Ramp
Time
003C
060
FP
R/W
99.59 (0-99 Hrs:0-59 Min) or
0 to 999 (Degrees/Minute)
Segment #4 Soak
Setpoint Value
003D
061
FP
R/W
99.59 (0-99 Hrs:0-59 Min) or
0 to 999 (Degrees/Minute)
Segment #4 Soak
Time
003E
062
FP
R/W
99.59 (0-99 Hrs:0-59 Min)
Segment #5 Ramp
Time
003F
063
FP
R/W
99.59 (0-99 Hrs:0-59 Min) or
0 to 999 (Degrees/Minute)
Segment #6 Soak
Setpoint Value
0040
063
FP
R/W
Within Setpoint Limits
Segment #6 Soak
Time
0041
065
FP
R/W
99.59 (0-99 Hrs:0-59 Min)
Segment #7 Ramp
Time
0042
066
FP
R/W
99.59 (0-99 Hrs:0-59 Min) or
0 to 999 (Degrees/Minute)
Segment #8 Soak
Setpoint Value
0043
067
FP
R/W
Within Setpoint Limits
Segment #8 Soak
Time
0044
068
FP
R/W
99.59 (0-99 Hrs:0-59 Min)
Segment #9 Ramp
Time
0045
069
FP
R/W
99.59 (0-99 Hrs:0-59 Min) or
0 to 999 (Degrees/Minute)
Segment #10 Soak
Setpoint Value
0046
070
FP
R/W
Within Setpoint Limits
Segment #10 Soak
Time
0047
071
FP
R/W
99.59 (0-99 Hrs:0-59 Min)
Segment #11 Ramp
Time
0048
072
FP
R/W
99.59 (0-99 Hrs:0-59 Min) or
0 to 999 (Degrees/Minute)
Segment #12 Soak
Setpoint Value
0049
073
FP
R/W
Within Setpoint Limits
Segment #12 Soak
Time
004A
074
FP
R/W
99.59 (0-99 Hrs:0-59 Min)
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3.10.4 Accutune
Table 3-17 lists all the register addresses and ranges or selections for the function parameters in
Set-up Group Adaptive Tune.
Table 3-17 Set-up Group – Adaptive Tune
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Fuzzy Overshoot
Suppression
00C1
193
INT
R/W
0 = Disabled
1 = Enabled
Accutune Enable
0098
152
INT
R/W
0 = Accutune Disabled
1 = Tune
Accutune Error
(Read only)
0097
151
INT
R/W
0 = None
3 = Process Identification failed
4 = Accutune aborted on
command
5 = Running
3.10.5 Algorithm
Table 3-18 lists all the register addresses and ranges or selections for the function parameters in
Set-up Group Algorithm.
Table 3-18 Set-up Group – Algorithm
Parameter
Description
Register
Address
Hex
Control Algorithm
Selection
Data
Type
Access
Decimal
0080
128
INT
R/W
0 = ON/OFF
1 = PID-A
2 = PID-B
3 = PD-A with Manual Reset
4 = Three Position Step
00A0
160
INT
R/W
0 = Time Simplex Relay 1
(Selection here will
affect ID code 160 in
Output Algorithms.)
Output Algorithm
Data Range or
Enumerated Selection
1 = Time Simplex Relay 2
2 = Current Simplex
3 = TPSC
4 = Time Duplex
5 = Current Duplex
6 = Current/Time Duplex
7 = Time/Current Duplex
Relay Cycle Time
Increments
5/99
00BE
190
INT
R/W
0 = 1 second increments
1 = 1/3 second increments
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Read, Write, and Override Parameters
3.10.6 Input 1
Table 3-19 lists all the register addresses and ranges or selections for the function parameters in
Set-up Group Input 1.
Table 3-19 Set-up Group – Input 1
Parameter
Description
Register
Address
Hex
Decimal Point
Location
009B
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
155
INT
R/W
0 = XXXX – Fixed
1 = XXX.X – Floating decimal point to
one
2 = XX.XX – Floating decimal point to
two
3 = X.XXX – Floating decimal point to
three
Temperature
Units
0081
129
INT
R/W
0 = °F
1 = °C
2 = None
Table continued on next page
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Read, Write, and Override Parameters
Table 3-19 Setup Group – Input 1, continued
Parameter
Description
Register
Address
Hex
Input 1 Type
00A8
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
168
INT
R/W
1 = B TC
2 = E TC H
3 = E TC L
4 = J TC H
5 = J TC L
6 = K TC H
7 = K TC L
8 = NNM H
9 = NNM L
10 = NM90 H
11 = NM90 L
12 = Nicrosil TC
13 = R TC
14 = S TC
15 = T TC H
16 = T TC L
17 = W TC H
18 = W TC L
19 = 100 PT RTD
20 = 100 PT LO RTD
21 = 200 PT RTD
22 = 500 PT RTD
23 = Radiamatic RH
24 = Radiamatic RI
25 = 0-20 mA
26 = 4-20 mA
27 = 0-10 mV
28 = 0-50 mV
29 = 0-5 Vdc
30 = 1-5 Vdc
31 = 0-10 Vdc
32 = Unused
33 = 100 M
ATTENTION
Changing the Input Type will result in the loss of Field Calibration values and will
restore the Factory Calibration values.
Table continued on next page
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Read, Write, and Override Parameters
Table 3-19 Setup Group – Input 1, continued
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Input 1 Transmitter
Characterization
00A9
169
INT
R/W
0 = B TC
1 = E TC H
2 = E TC L
3 = J TC H
4 = J TC L
5 = K TC H
6 = K TC L
7 = NNM TC H
8 = NNM TC L
9 = NM90 H
10 = NM90 L
11 = Nicrosil TC
12 = R TC
13 = S TC
14 = T TC H
15 = T TC L
16 = W TC H
17 = W TC L
18 = 100 PT RTD
19 = 100 PT LO RTD
20 = 200 PT RTD
21 = 500 PT RTD
22 = Radiamatic RH
23 = Radiamatic RI
24 = Linear
25 = Square Root
Input 1 High Range
Value
001D
029
FP
R/W
–999. to 9999. Engineering Units
(Linear types only)
Input 1 Low Range
Value
001E
030
FP
R/W
–999 to 9999. Engineering Units
(Linear types only)
Input 1 Ratio
006A
106
FP
R/W
–20.00 to 20.00
Input 1 Bias
006B
107
FP
R/W
–999 to 9999. Engineering Units
Input 1 Filter
002A
042
FP
R/W
0 to 120 seconds
Burnout (Open
Circuit Detection)
00A4
164
INT
R/W
0 = None and Failsafe
1 = Upscale
2 = Downscale
3 = No F.S.
Emissivity
0017
023
FP
R/W
0.01 to 1.00
Power Frequency
00A6
166
INT
R/W
0 = 60 Hertz
1 = 50 Hertz
Table continued on next page
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Read, Write, and Override Parameters
Table 3-19 Setup Group – Input 1, continued
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Display
00BA
186
INT
R/W
0 = SP (setpoint)
1 = PRY (PV with label)
2 = PRN (PV without label)
Language
(Displays)
00C0
192
INT
R/W
0 = English
1 = French
2 = German
3 = Spanish
4 = Italian
3.10.7 Input 2
Table 3-20 lists all the register addresses and ranges or selections for the function parameters in
Set-up Group Input 2.
Table 3-20 Set-up Group – Input 2
Parameter
Description
Register
Address
Hex
Input 2 Type
00AA
Data
Type
Access
INT
R/W
Data Range or
Enumerated Selection
Decimal
170
0 = Disable
1 to 24 Unused
25 = 0-20 mA
26 = 4-20 mA
29 = 0-5 Vdc
30 = 1-5 Vdc
31 = Unused
32 = Slidewire
33 = Unused
34 = 0 – 2 vdc
ATTENTION
Changing the Input Type will result in the loss of Field Calibration values and will
restore the Factory Calibration values.
Table continued on next page
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Read, Write, and Override Parameters
Table 3-20 Setup Group – Input 2, continued
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Input 2 Transmitter
Characterization
00AB
171
INT
R/W
0 = B TC
1 = E TC H
2 = E TC L
3 = J TC H
4 = J TC L
5 = K TC H
6 = K TC L
7 = NNM TC H
8 = NNM TC L
9 = NM90 H
10 = NM90 L
11 = Nicrosil TC
12 = R TC
13 = S TC
14 = T TC H
15 = T TC L
16 = W TC H
17 = W TC L
18 = 100 PT RTD
19 = 100 PT LO RTD
20 = 200 PT RTD
21 = 500 PT RTD
22 = Radiamatic RH
23 = Radiamatic RI
24 = Linear
25 = Square Root
Input 2 High Range
Value
0023
035
FP
R/W
–999. to 9999. Engineering Units
Input 2 Low Range
Value
0024
036
FP
R/W
–999 to 9999. Engineering Units
Input 2 Ratio
0025
037
FP
R/W
–20.00 to 20.00
Input 2 Bias
0026
038
FP
R/W
–999 to 9999. Engineering Units
Input 2 Filter
002B
043
FP
R/W
0 to 120 seconds
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Read, Write, and Override Parameters
3.10.8 Control
Table 3-21 lists all the register addresses and ranges or selections for the function prompts in Setup Group Control.
Table 3-21 Set-up Group – Control
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Tuning Parameter
Selection
00AC
172
INT
R/W
Automatic
Switchover Value
(used with 172
selection 2 or 3)
0038
056
FP
R/W
Local Setpoint
Source (Number of
LSPs)
00AD
173
INT
R/W
Power Up Mode
Recall
0082
130
INT
R/W
0 = One set only
1 = 2 sets keyboard selected
2 = 2 sets with PV automatic
switchover
3 = 2 sets with setpoint (SP)
automatic switchover
Within the PV Range in
engineering units
0 = One Local Setpoint
1 = Two Local Setpoints (disables
RSP)
0=
1=
2=
3=
4=
Control
Mode
Setpoint
Mode
MAN
AUTO
AUTO
LAST
LAST
LSP
LSP
Last RSP
Last SP
Last local SP
RSP Source
0083
131
INT
R/W
0 = None
1 = Input 2
0 = None
1 = LSP = PV (when in Manual)
2 = LSP = RSP (when switched)
Setpoint Tracking
008A
138
INT
R/W
Control Setpoint
High Limit
0007
007
FP
R/W
0 to 100% of PV
(engineering units)
Control Setpoint Low
Limit
0008
008
FP
R/W
0 to 100% of PV
(engineering units)
Control Output
Direction/Alarm
Outputs
0087
135
INT
R/W
0 = Direct Action Alarm Output
energized
1 = Direct Action Alarm Output
de-energized
2 = Reverse Action Alarm Output
energized
3 = Reverse Action Alarm Output
de-energized
Table continued on next page
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Modbus® RTU Serial Communications User Manual
Configuration Interface for UDC2300
35
Read, Write, and Override Parameters
Table 3-31 Set-up Group – Control, continued
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
High Output Limit
000E
014
FP
R/W
–5 to 105% of output
Low Output Limit
000F
015
FP
R/W
–5 to 105% of output
Output Deadband
0012
018
FP
R/W
–5 to +25.0%
Time Duplex 0.5 to 5.0% (3 pos
step)
Output Hysteresis
0013
019
FP
R/W
0.0 to 100.0% of PV
Failsafe Mode
00D5
213
INT
R/W
0 = Latching
1 = Non latching
Failsafe Output
Level
0028
040
FP
R/W
0 to 100%
Proportional Band
Units
0094
148
INT
R/W
0 = Gain
1 = Proportional band
Reset Units
0095
149
INT
R/W
0 = Minutes
1 = RPM
3.10.9 Communications
Table 3-22 lists all the register addresses and ranges or selections for the function parameters in
Set-up Group Communications.
Table 3-22 Set-up Group – Communications
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Shed Time
009A
154
INT
R/W
0 = No Shed
1 = 255 sample periods
Shed Mode and
Output
00A2
162
INT
R/W
0 = Last Mode and Last Output
1 = Manual Mode, Last Output
2 = Manual Mode, Failsafe Output
3 = Automatic Mode
Shed Setpoint Recall
00A3
163
INT
R/W
0 = To Last Local Setpoint used
1 = Last Setpoint prior to Shed
Computer Setpoint
Ratio
0015
021
FP
R/W
–20.00 to 20.00
Computer Setpoint
Bias
0016
022
FP
R/W
–999 to 9999.
36
Modbus® RTU Serial Communications User Manual
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Read, Write, and Override Parameters
3.10.10 Alarms
Table 3-23 lists all the register addresses and ranges or selections for the function parameters in
Set-up Group Alarms.
Table 3-23 Set-up Group – Alarms
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Alarm 1 Setpoint 1
Value
0009
009
FP
R/W
Within the range of selected
parameter or PV span for deviation
alarm
Alarm 1 Setpoint 2
Value
000A
010
FP
R/W
Within the range of selected
parameter or PV span for deviation
alarm
Alarm 2 Setpoint 1
Value
000B
011
FP
R/W
Within the range of selected
parameter or PV span for deviation
alarm
Alarm 2 Setpoint 2
Value
000C
012
FP
R/W
Within the range of selected
parameter or PV span for deviation
alarm
Alarm 1 Setpoint 1
Type
008C
140
INT
R/W
0 = None
1 = Input 1
2 = Input 2
3 = PV
4 = Deviation
5 = Output
6 = Alarm on Shed
7 = SP Event On
8 = SP Event Off
9 = Manual
10 = Remote Setpoint
11 = Failsafe
12 = PV Rate of Change
13 = Alarm on Digital Input
14 = Deviation based on SP2
15 = Loop Break
Limit Controller
0 = None
1 = PV
2 = Deviation
3 = Shed
Alarm 1 Setpoint 2
Type
008E
142
INT
R/W
Same as 140
Alarm 2 Setpoint 1
Type
0090
144
INT
R/W
Same as 140
Alarm 2 Setpoint 2
Type
0092
146
INT
R/W
Same as 140
Table continued on next page
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Modbus® RTU Serial Communications User Manual
Configuration Interface for UDC2300
37
Read, Write, and Override Parameters
Table 3-23 Set-up Group – Alarms, continued
Parameter
Description
Register
Address
Hex
Data
Type
Access
Data Range or
Enumerated Selection
Decimal
Alarm 1 Setpoint 1
Event
008D
141
INT
R/W
0 = Low Alarm
1 = High Alarm
Alarm 1 Setpoint 2
Event
008F
143
INT
R/W
0 = Low Alarm
1 = High Alarm
Alarm 2 Setpoint 1
Event
0091
145
INT
R/W
0 = Low Alarm
1 = High Alarm
Alarm 2 Setpoint 2
Event
0093
147
INT
R/W
0 = Low Alarm
1 = High Alarm
Alarm Hysteresis
0029
041
FP
R/W
0.0 to 100% of output or span
Alarm Latching for
Output 1
00C8
200
INT
R/W
0 = Non Latching
1 = Latching
Alarm States
00C9
201
INT
R/W
State = 0 = Not in Alarm
State = 1 = In Alarm
Bit 0 = Alarm 11 State
Bit 1 = Alarm 12 State
Bit 2 = Alarm 21 State
Bit 3 = Alarm 22 State
Event = 0 = Low
Event = 1 = High
Bit 4 = Alarm 11 Event
Bit 5 = Alarm 12 Event
Bit 6 = Alarm 21 Event
Bit 7 = Alarm 22 Event
Alarm 1 Blocking
38
00CA
202
INT
R/W
0 = Disable
1 = Block Alarm 1
2 = Block Alarm 2
3 = Block Alarm 1 and Alarm 2
Modbus® RTU Serial Communications User Manual
Configuration Interface for UDC2300
5/99
Industrial Automation and Control
Honeywell Inc.
1100 Virginia Drive
Fort Washington, Pennsylvania 19034
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