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Eurotherm Controls Inc. Reston, VirginiaWe’ve Been There!
Eurotherm Controls Series 2000 Modbus Communications
(Slave)
TO
Wonderware InTouchModicon Modbus DDE Server
(Master)
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Proven Steps To Success
Order Series 2000 Instruments
Configure Series 2000 (S2000) Instrument Set Comms Parameters
Configure DDE Server
Configure Intouch Create DDE Access Names Create Tagnames Display Values
Wire Series 2000 to PC
Watch Precision PID Control In Action!
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Communicating Series 2000 Models Consists of:Models 2216, 2208, 2204Models 2416, 2408, 2404
Modbus Protocol OptionCommunications Code
YM For EIA-485 (All Models Above)AM For EIA-232 (Series 24xx Only)FM For EIA-422 (Series 22xx V2 and 24xx)
Typical Model Codes2208/CC/VH/LH/TC/DB/FH/YM/ENG//2404/CC/VH/LH/YC/DB/FH/YM/XX/ENG//
Consult Factory for Price Adder
Order Series 2000
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The Communications Module configuration is found under the HA labelwhile the instrument is in Configuration Access level.
Parameter Functions Meaningid cmScmS* EIA 485 Comms Module
PDS.I PDSIO Setpoint InputFunc modmod* Modbus Protocol
nonE No Comms ProtocolbAud 1200, 2400,4800,9600,19.2019.20* Baud RatePrtY nonE,EVEnEVEn*,Odd ParityrESn FuLLFuLL Full Resolution
Int Integer Resolution
Address is part of the Comms List (cmS) -- Operator Access LevelAddr 1-254 Address -- As required
* Used in Configuration Example
Configure Series 2000
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Configure Series 2000
Notes on Resolution
Data values limited to 16 bits per parameter.
This reduces the active range of parameter values to 65536 counts. Series 2000 implements this as -32767 (8001h) to +32767 (7FFFh).
In integer resolution all parameters are rounded to the nearest integer value.In full resolution mode the decimal point position is implied.
100.01 would be transmitted as 10001
From this, and the 16 bit resolution limitation, the maximum value communicable with 2 decimal place resolution is 327.67.
The parameter resolution will be taken from the slave user interface, and the conversion factor must be known to both master and slave.
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Comms Features
Modbus Command Functions Supported1, 2 Read n Bits3, 4 Read n Words5 Write 1 Bit6 Write 1 Word7 Fast Read of Status8 LoopBack16 Write n words
Only the write function codes 05, 06 and 16 will work with a ‘broadcast mode’ address -- 0.
Series 2000 instruments will not reply if they receive a request including a unsupported function code.
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Wonderware Modbus DDE Server
Microsoft® Windows™ Application Acts as a DDE (Dynamic Data Exchange) Server
Primarily intended for use with Wonderware's InTouch (version 3.01 or later)May be used by any Microsoft Windows program capable of acting as a DDE client.
Communicates with external devices via a serial connection. Using modems or multi-drop transceivers server can support up to 247 devices on each serial ports.
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DDE Address Convention
Application NameThe name of the Windows program (Server) that will be accessing the data element. In the case of data coming from or going to Modbus compatible equipment from this Server, the application portion of the DDE address is -- Modbus.
Topic NameMeaningful name(s) are configured in the DDE Server to identify specific devices. These names are then used as the topic name in all DDE conversations to that device. For example -- c2FastInstr1.
Item NameA specific data element within the data topic. In the case of Eurotherm controllers, the item name represents a parameter such as measured value (1) or setpoint (2). Each parameter in a Eurotherm controller has a unique Modbus address. For example -- 40002 S.
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The DDE Server supports item/point names that are consistent with the point naming convention used by Modicon PLCs. The server allows you to select a Slave Type when you configure the topic definition for the PLC.
The PLC Address Ranges supported are:
PLC Type Point Type Range DDE Tag Type Access484 Coil 1-999 Discrete Read/Write
Contact 1001-1999 Discrete Read OnlyInput Register 3001-3999 Analog Read OnlyHolding Register 4001-4999 Analog Read/Write
584/984 Coil 1-9999 Discrete Read/WriteMicro84 Contact 10001-19999 Discrete Read Only
Input Register 30001-39999 Analog Read OnlyHolding Register 40001-49999 Analog Read/Write
Modbus Item Address
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Special Item Conventions
Signed Values (Registers or Integers)Normally 0 - 65,535If Signed, Value Now -32,768 to 32,767Specified by Adding a Space and S to the Modbus Address
40002 S
Long Integers32 bit Values (Double Integer)Specified by Adding a Space and L to the Modbus Address
40002 L
Floating PointIEEE 32 bit Floating Point NumbersSpecified by Adding a Space and F to the Modbus Address
40002 F
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From the DDE Help Menu:
About ModbusVersion 5.5From I/O Servers CD
April 1997P/N 06-657
Operating SystemWindows NT 4.0Windows 95
DDE Server Configuration
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The Configure Menu Item:
Select “ComPort Settings”
To Define Serial PortCommunications Parameters
DDE Server Configuration
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Serial Port SettingsCOM2 (shown)Reply Timout 1 secRTU Protocol19200 Baud8 Data Bits1 Stop BitEven Parity
Use Com Port List BoxTo Confgure IndividualSerial Ports
Click on “Save” to Complete
DDE Server Configuration
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Create and DefineDDE Topics Next
Recommend 2 Topics / S2000Fast - Primary Parameters
1 second or better updateMeasured Value, Setpoint, Output Power, Status Word
Med - Secondary Parameters5 second or slower updateTuning, Alarm Limits, SP Limits
DDE Server Configuration
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Click on “New”to Create and DefineDDE Topic Definition
DDE Server Configuration
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Enter Topic NameUse Meaningful Name
COM2 (c2)Fast Update (Fast)Instrument 1 (Instr1)
Put Numbers at EndEasier to Change
Com PortMust Match PC Target Port
Slave IDMust Match S2000 Address
DDE Server Configuration
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Block I/O SizesRegister Read -> 32Register Write -> 1
Block I/O Sizes Reduced22xx supports 32 word comms buffer24xx supports 125 word comms bufferStatus Word not contiguous
Update Interal1 Second Shown for Fast5 Seconds Shown for MedUse Prime Numbers
More Efficient Comms
Enter Topic NameUse Meaningfull Name
COM2 (c2)Medium Update (Med)Instrument 1 (Instr1)
DDE Server Configuration
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Completed Topic Definition For 1 S2000For 4 S2000s
DDE Server Configuration
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InTouch Configuration
Create DDE Access Names(s)
From Intouch Menu BarSelect “Special”Then “DDE Access Names”
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To Add a DDE Access NameClick on “Add”
What are DDE Access Names?
Provides InTouch w/information about source of data value
Includes Name of Applicationproviding the data value; and
Name of the Topic which containsthe data value
InTouch Configuration
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To Complete DDE Access Name
Enter:
DDE Access NameArbritrary name used to reference this DDE Access Name entry. May be same name as DDE Topic Name.
DDE App/Server NameAlways Modbus in our App.Is name of DDE Server
DDE Topic NameFrom the Modbus DDE Server topics created in previous step.
InTouch Configuration
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Completed DDE Access NameDefinition For:
4 Series 2000
2 Access Names Each4 Fast Topics4 Med Topics
InTouch Configuration
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InTouch Configuration
Create Tagnames
From Intouch Menu BarSelect “Special”Then “Tagname Dictionary”
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Following Slides Show Definition of:Process Value Read-Only Modbus Address 1Target Setpoint Read/Write Modbus Address 2Output Power Read/Write Modbus Address 3Summary Status Read-Only Modbus Address 75
All Parameters to Use DDE Access Fast1Requires 2 Requests
22xx does not support more than 32 words/requestNo need to read all parameters between addresses 3 and 75
Tags Created as Real type -- DDE RealExcept Summary Output Status -- DDE Integer
Tagname Definition
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Tagname Definition Dialog
Click on “New” to create new tag
Tagname Definition
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Change data Type
DDE Integerfor whole values
DDE Realfor real values10ths’ precision configured
Tagname Definition
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Process Value -- Next Slide
Tagname -- Descriptive Name of Loop ParameterProcessVal_Z1
Change data Type of TagDDE Real
Process Value is Read-Only
CommentDescriptive label for Tagname
Scale Value -- Min/Max EU and Min/Max Raw10ths’ precision configured -- Divide by 10Reads xxx.0 if Series 2000 not configured
for decimal display
DDE Access NameFast1
DDE Item S2000 Modbus Address = 1Modbus 584/984 Holding Register = 40001
40002 S = 40001 + 1
Holding Register used over Input Registerto force block read request with Setpoint and Output Power
S = signed value, if negative values required
Tagname Definition
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Tagname Definition
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Target Setpoint -- Next Slide
Tagname -- Descriptive Name of Loop ParameterSetpoint_Z1
Change data Type of TagDDE Real
Local Setpoint is Read/Write
CommentDescriptive label for Tagname
Scale ValueUse Min/Max EU and Min/Max Raw
10ths’ precision -- Divide by 10Reads xxx.0 if Series 2000 not configured
for decimal display
DDE Access NameMed1
DDE ItemS2000 Modbus Address = 2Modbus 584/984 Holding Register = 40001
40003 S = 40001 + 2
Holding Register type must be used for Read/Write Parameters
S = signed value, if negative values required
Tagname Definition
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Tagname Definition
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Output Power -- Next Slide
Tagname -- Descriptive Name of Loop ParameterOutputPower_Z1
Change data Type of TagDDE Real
Output Power is Read/WriteIn Manual Mode only
CommentDescriptive label for Tagname
Scale ValueUse Min/Max EU and Min/Max Raw
10ths’ precision -- Divide by 10Note Min negative valuesDisplays tenths if Resolution set to Full
DDE Access NameFast1
DDE ItemS2000 Modbus Address = 3Modbus 584/984 Holding Register = 40001
40004 S = 40001 + 3
Holding Register type must be used for Read/Write Parameters
S = signed value, if negative values required
Tagname Definition
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Tagname Definition
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Summary Status -- Next Slide
Tagname -- Descriptive Name of Loop ParameterSummaryStatus_Z1
Change data Type of TagDDE Integer
Summary Status is Read-Only
CommentDescriptive label for Tagname
Scale Value
Use Min/Max EU and Min/Max RawNo Scaling
DDE Access NameFast1
DDE ItemS2000 Modbus Address = 75Modbus 584/984 Input Register = 30001
30076 = 30001 + 75
Input Register type may be used for Read-Only Parameters
Tagname Definition
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Tagname Definition
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Display Values
Different Ways To Display in WindowViewerTouch Links
Typically Used for Read/Write ParametersSetpoint, OuputPower, Mode, Prop Band, Integral, Derivative, etc.
Display LinksTypically Used for Read-Only Parameters
Process Value, Error
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Different Ways To Display Loop Values in WindowViewerNumeric
# -- Whole Number#.0 -- Tenths’ Resolution
Percent FillAs a Bar Graph
Trend, Real-Time and HistoricalAlarm SummaryRecipe
Display Values
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Wiring
To Connect the PC to Series 22xx and 24xx EIA-232D
NOT available in 22xx Direct connection from PC to 1 (One) Series 24xxMulti-drop NOT available3 wire connection50 feet maximum distance
EIA-422For Series 22xx, ONLY available in Phase II (V2.x or greater)Multi-drop available - 31 S2000 per Comm Port (+ 1 Master)5 wire connection4000 feet max distanceTermination resistors required -- 150 ohms
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Wiring
To Connect the PC to the Series 24xx and 22xx EIA-485
Phase 1 Series 22xx is EIA-485 OnlyMulti-drop available - 31 S2000 per Comm Port (+ 1 Master)3 wire connection4000 feet max distanceTermination resistors required -- 150 ohms
EIA-422 or EIA-485 is recommended for plant installation EIA-485 should be used for new installations where multi-drop capability is required EIA-422 is provided for compatibility with existing Eurotherm instruments
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Most PC’s Provide Only EIA-232D Standard
Convertor required for EIA-422Internal ExternalSealevel DUAL SIO duTec BaudMASTERQuatech DS-200S
Convertor required for EIA-485Internal External
None Tested B&B Electronics Model 485LPCOR B&B Electronics Model 485SD9TB
duTec BaudMASTER
Wiring
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Cable Requirements
Typical Cable Requirements are < 100 ohm/km nominal DC resistance Typically 24AWG or greater Nominal characteristic impedance at 100kHz of 100 ohms < 60 pF/m mutual pair capacitance (capacitance between 2 wires in a pair) < 120 pF/m stray capacitance (capacitance between 1 wire and all others connected to earth) Characteristic impedance is 100 ohms For EIA-422/EIA-485 applications, use twisted pair cable
Suitable Cables for EIA-422 or EIA-485 Listed in Decreasing QualityManufactured by Belden Cable
9842, 9843, 9829, 9830, 8102, 8103, 9729, 9730
Suitable Cables for EIA-232D Listed in Decreasing QualityManufactured by Belden Cable
8102, 9502, 8771
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To Reduce Electrical InterferenceEarth Cable Screen at a Single Point
Series 2000 Communications Circuits are all IsolatedTo Avoid Common Mode Noise Problems
Connect Common Line to Earth at 1 Point Through a 100 ohm, 1/4W Carbon Composition ResistorThis limits the ground current.
Route Communications Cables in Separate Conduit From Power Cables
Do not use Redundant Pairs in Communications Cables for Other Purposes
Ensure Cable Runs Have Sufficient SlackTo Prevent Abrasion of the Insulating Sheath
Cable Requirements
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Wiring -- EIA232D
EIA-232D Wiring from an IBM™ PC Serial Port to 1 Series 24xx
EIA-232D Serial Port Series 24xx Function 9 pin 25 pin Terminal Function Rx 2 3 Connect to HF Tx Tx 3 2 Connect to HE Rx Common 5 7 Connect to HD Common Jumper 1,4,6 6,8,11 Jumper 7,8 4,5 Earth 1
EIA-232D Valid for V1 or greater 2416, 2408, 2404
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Wiring -- Sealevel
Sealevel DUAL SIO Part #3082, Asynchronous Serial ISA Card2 Independent ChannelsPort Enable/DisableSelectable Address/Interrupt16550 UARTS
EIA-422 Wiring from Sealevel to Series 2000Sealevel J1 or J2 Series 2000 Function 9 pin Terminal Function Rx+ 1 Connect to HF Tx- B Rx- 2 Connect to HE Tx+ A Tx+ 4 Connect to HC Rx- B’ Tx- 3 Connect to HB Rx+ A’ Common 5 Connect to HD Common
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Wiring -- Quatech
Quatech DS200-S (RS422) Asynchronous Serial ISA (16-bit) Card2 Independent ChannelsPort Enable/DisableSelectable Address/Interrupt16550 UARTS
EIA-422 Wiring from Quatech to Series 2000Quatech Ports Series 2000 Function 9 pin Terminal Function Rx+ 4 Connect to HF Tx- B Rx- 8 Connect to HE Tx+ A Tx+ 2 Connect to HC Rx- B’ Tx- 7 Connect to HB Rx+ A’ Common 5 Connect to HD Common
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EIA-232D Wiring from an IBM™ PC Serial Port to duTecEIA-232D Serial Port duTec BaudMASTER Function 9 pin Terminal Function Rx 2 3 Connect to 2 Tx Tx 3 2 Connect to 3 Rx Common 5 7 Connect to 7 Common Jumper 1,4,6 6,8,11 Jumper 7,8 4,5
See Next Slide for BaudMASTER to Series 2000
Wiring -- Using duTec
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Wiring -- Using duTec
EIA-422 Wiring from duTec BaudMASTER to Series 2000 (4 wire full duplex)
duTec BaudMASTER Series 2000 duTec Line Side Terminal Signal Name Rx +A Connect to HF Tx- B Rx -B Connect to HE Tx+ A Tx +A Connect to HC Rx- B’ Tx -B Connect to HB Rx+ A’
EIA-422 Valid for V2 or greater 2216, 2208, 2204V1 or greater 2416, 2408, 2404
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Wiring -- Using duTec
EIA-485 Wiring from duTec BaudMASTER to Series 2000 (2 wire half duplex)
duTec BaudMASTER Series 2000 duTec Line Side Terminal Function Tx +A Connect to HF B Rx -B Connect to HE A
EIA-485 Valid for V1 or greater 2216, 2208, 2204V1 or greater 2416, 2408, 2404
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Wiring -- Using B&B
EIA-485 Wiring from B&B (485LPCOR) to Series 2000 (2 wire half duplex)
EIA-485 Port Series 2000 Function 25 pin Terminal Function B 14 Connect to HF B A 2 Connect to HE A Common 7 Connect to HD Common
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Wiring -- Using B&B
EIA-485 Wiring from B&B (485SD9TB) to Series 2000 (2 wire half duplex)
EIA-485 Port Series 2000 Function 25 pin Terminal Function B 2 Connect to HF B A 1 Connect to HE A Common 3 Connect to HD Common
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Still Doesn’t Work?
Check the Wonderware Logger, it provides useful messages Check the cabling -- again.
If Baud Rate is 19K2, make sure UART’s are 16550. If not, decrease Baud Rate to 9600 or slower.
Check that the Baud Rate, Data Bits, Parity and Stop Bits are matched -- again. Computer locking up? Make sure there are no INT conflicts with other serial ports or other cards in the PC.
Plugged into the correct COM port? COM port mislabled? COM port enabled?
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Series 2000 Modbus Addresses
Following slides list the Series 2000 Modbus addresses.
Two distinct sets of data are accessible -- bit and word variablesA partial listing of Word addresses are followed by Bit addresses
This is NOT a comprehensive list of Series 2000 Modbus AddressesPlease reference the
Series 2000 Modbus, Jbus, Ei-Bisynch Digital Communications Handbook
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Parameter Modbus220x
Modbus240x
Display
Process Variable 1 1Target Setpoint 2 2 SPAuto/Manual Mode
0: Auto1: Manual
273 273 m-A
Output Power (PID Controller). Not writeableunless the instrument is in ‘manual’ mode.
3 3 OP
Working Setpoint. Read only: use Target Setpointor currently selected setpoint (1 to 16) to changethe setpoint value.
5 5 w.SP
Load Current returned over PDSIO. 80 80 LcurControl Output (On Off Controller). Not writeableunless the instrument is in ‘manual’ mode
0: -100%1: 0%2: 100%
N/A 85 OP
VP Manual Output N/A 60 -Valve Position 53 53 -
Home List parameters.
Series 2000 Modbus Addresses
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Series 2000 Modbus Addresses
Parameter Modbus220x
Modbus240x
Display
Gain Scheduler Setpoint N/A 153 G.SPCurrent PID set (Read Only if gain scheduling isselected)
0: Set 11: Set 2
N/A 72 SET
Proportional Band PID1 6 6 PBIntegral Time PID1
0: Off
8 8 Ti
Derivative Time PID1
0: Off
9 9 Td
Manual Reset 28 28 rESCutback High
0: Auto
18 18 Hcb
Cutback Low PID1
0: Auto
17 17 Lcb
Relative Cool Gain PID1 19 19 rEL.C
PID List
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Parameter Modbus220x
Modbus240x
Display
Alarm 1 Setpoint 13 13 1 ALAlarm 2 Setpoint 14 14 2 ALAlarm 3 Setpoint 81 81 3 ALAlarm 4 Setpoint 82 82 4 ALAlarm 1 Hysteresis N/A 47 HY 1Alarm 2 Hysteresis N/A 68 HY 2Alarm 3 Hysteresis N/A 69 HY 3Alarm 4 Hysteresis N/A 71 HY 4Loop Break Time 83 83 Lb tEnable diagnostic messages
0: No Diagnostics1: Diagnostics
N/A 282 diAg
Alarm List
Series 2000 Modbus Addresses
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Parameter Modbus220x
Modbus240x
Display
Autotune Enable
0: No Tune1: Tune
270 270 tunE
Adaptive Tune enable
0: No Adaptive Tune1: Tune
N/A 271 drA
DRA Trigger value N/A 100 drA.tAutomatic Manual Reset Calculation (Auto droop)
0: Manual Reset1: Calculated
272 272 Adc
Autotune List
Series 2000 Modbus Addresses
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Series 2000 Modbus Addresses
Parameter Modbus220x
Modbus240x
Display
Summary Output Status Word N/A 75 -BIT DESCRIPTION0 Alarm 1 State ( 0 = Safe 1 = Alarm )1 Alarm 2 State ( 0 = Safe 1 = Alarm )2 Alarm 3 State ( 0 = Safe 1 = Alarm )3 Alarm 4 State ( 0 = Safe 1 = Alarm )4 Manual Mode ( 0 = Auto 1 = Manual )5 Sensor Break ( 0 = Good PV 1 = Sensor Broken )6 Loop Break ( 0 = Good closed loop 1 = Open Loop )7 Heater Fail ( 0 = No Fault 1 = Load fault detected )8 Tune Active ( 0 = Auto Tune disabled 1 = Auto Tune active)9 Ramp/Program Complete ( 0 = Running/Reset 1 = Complete )10 PV out of range ( 0 = PV within table range 1 = PV out of table range )11 DC control module fault (0= Good. 1= BAD)12 Programmer Segment Synchronize (0 = Waiting, 1 = Running)13 Remote input sensor break (0 = Good, 1 = Bad)14 Reserved15 Reserved
Status Word
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Series 2000 Modbus Addresses
Parameter Modbus Bit (Coil) Address
Auto/Manual Mode
0: Auto1: Manual
2
Alarm 1 Status
0: No Alarm1: Alarm
5
Sensor Break Status
0: OK1: Sensor Break
10
Modbus Bit Addressable Parameters
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3rd Party Contact Listing
Sealevel Systems, Inc.P.O. Box 830155 Technology PlaceLiberty, SC 29657TEL: 864.843.4343FAX: 864.843.3067http://www.sealevel.com
Quatech662 Wolf Ledges ParkwayAkron, OH 44311TEL: 1-800-553-1170TEL: 330-434-3154FAX: 330.434.1409http://www.quatech.com
duTecduTec, Inc.P.O. Box 964Jackson, MI 49204TEL: (800) 248.1632FAX: 517-750-4740http://www.remoteiocontrol.com
Wonderware100 Technology DriveIrvine, CA 92618TEL: 714-727-3200FAX: 714-727-3270http://www.wonderware.com
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B&B electronics Manufacturing Company
707 Dayton RoadP.O. Box 1040Ottawa, IL 61350TEL: (815) 433-5100FAX: (815) 434-7094http://www.bb-elec.com
3rd Party Contact Listing
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How to Contract Eurotherm Controls Inc!
Corporate Headquarters11485 Sunset Hills RoadReston, Virginia 20190-5286
Telephone: 703.471.4870Fax: 703.787.3436BBS: 703.787.3444Fax-On-Demand: 703.787.3441
Be sure to check out our Web site athttp://www.Eurotherm.COM
Interested in More?December 1997Mark Demick2KS_WW.PPT
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Trademarks
PLC is a trademark of Allen-Bradley Company.Windows NT™ is a trademark of Microsoft Corporation.Modbus® is a registered trademark of Modicon.PDSIO™ is a registered trademark of Eurotherm.Instant Accuracy™ is a registered trademark of Eurotherm.CJC™ is a registered trademark, patent #5,484,206, of Eurotherm.DeviceNet™ is a trademark of ODVA.InTouch™ is a trademark of Wonderware Corporation.
Eurotherm has used all reasonable resources and efforts to indicate and supplyinformation regarding trademarks used in this presentation. The absence of a trademark identifier is not a representation that a particular word or technologyis not a trademark.
© Eurotherm Controls Inc 1997. All rights strictly reserved.No part of this presentation may be duplicated in any form or by any means withoutprior written permission from Eurotherm Controls Inc. Every effort has been takento ensure the accuracy of this presentation. However, in order to maintain ourtechnological lead, we are continuously improving our products which could, withoutnotice, result in amendments or omissions to this presentation. We cannot acceptresponsibility for damage, injury, loss, or expenses resulting therefrom.
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