Ref: P.ppt (09/08/2015) 1 EUROTHERM CONTROLS a bc 2604–2704 Multi-loop Controllers Overview of...

Ref: P .ppt (04/19/23) 1EUROTHERM CONTROLS

2604–2704 Multi-loop Controllers

• Overview of Main Features• Input/output Hardware• Control features• Setpoint programmer• Special application blocks• Toolkit Blocks• Digital communications• User Interface customisation• Software Tools• Selling Messages

2704 Version 6 Release


3 Control Loops3 Control Loops• PID, VP and On/Off• 6 PID sets per loop• Cascade & Override• Ratio

Advanced ControlAdvanced Control• Zirconia probe input• Wet & Dry Humidity• Direct vacuum inputs• Boiler TDS

ProgrammerProgrammer• 60 programs• 600 Segments• 3 profiles/program•16 event outputs

Expansion IOExpansion IO• Din rail unit• 20 Digital inputs• 20 Digital outputs• 24V Supply

Custom DisplaysCustom Displays• Loop overviews• Operators lists • Alarm messages• User messages• User Screens (2704)

HardwareHardware• Standard IO• 2 Analog IP, 10 dig IO• 5 IO Module slots• Max 5 TC/RTD inputs

Digital CommsDigital Comms• Modbus slave• Modbus master• Profibus DP slave• DeviceNet slave• EI Bisync

ToolKit BlocksToolKit Blocks• Analogue operations• Digital operations• Timers & totalisers• Real time clock

26/2704 Product Overview26/2704 Product Overview


Input/Output HardwareInput/Output HardwareStandard I/OStandard I/O

• Universal PV input• -10 to +10vdc input• 1(2) Digital input• 7 Bi-directional digital I/O• 1 Changeover relay • I/O Expansion comms

Modular I/O Modular I/O • 5 I/O Slots• Most isolated 2400 modules

-Additional 26/27 modules-240Vac Isolation

• 2 Comms Slots-2400 modules

Expansion I/O Expansion I/O • 20 Digital inputs• 20 Digital outputs


Module AvailabilityModule Availability

OUTPUT BOARDSOUTPUT BOARDS• Change over relay• 2 pin relay• Dual relay• Single Triac• Dual Triac• Analog DC control• Analog Dual DC(26/2704)• Analog DC retransmission• Hi-Res DC retrans(26/2704)• Isolated single logic• Triple logic output

INPUT BOARDSINPUT BOARDS• Precision PV input (26/2704)• Analog input (26/2704)• Dual PV input (26/2704)• TDS input(2704)• Triple logic input• Triple contact input• Potentiometer input

POWER SUPPLY BOARDSPOWER SUPPLY BOARDS• 24 volt transmitter supply• 5 & 10 volt transducer supply• Dual 24Vdc supply(26/2704)

COMUNICATION BOARDSCOMUNICATION BOARDS• 232 Modbus or EI-BISYNC• 422 Modbus or EI-BISYNC• 485 Modbus or EI-BISYNC• Profibus• DeviceNet

Note: 232, 422, 485 boards can be used as modbus master or slave


Additional 26/2704 ModulesAdditional 26/2704 Modules

Analogue Input (AM)Analogue Input (AM)• Slots 1,3,4 or 6• Same Spec as 2400 DC input module• 3uV resolution• TC, RTD, mV, mA, Volts, High Z volts

PV Input (PV)PV Input (PV)• Slots 3 & 6• 0.25uV Resolution• TC/RTD/mV/mA,Volts input, High Z volts

Dual Analogue Input (DP)Dual Analogue Input (DP)• Slots 3 & 6• Inputs not isolated from each other• 1 TC/RTD/mV/mA & 1 Volts input• Ideal for carbon probe input


Additional 26/2704 ModulesAdditional 26/2704 Modules

Dual DC Output (DO)Dual DC Output (DO)• Slots 1,4 or 5• Each channel 4-20mA or 24Vdc PSU• 12bit resolution• Channel isolation

HiRes DC Retransmission (HR)HiRes DC Retransmission (HR)• Slots 1,4 or 5• Chan1=4-20mA, Chan2=24Vdc PSU• 16Bit resolution(very low noise)• Channel Isolation• Should be used in “feedback” mode(ref TIBC167)

TDS(Total dissolved solids) Input (TD)TDS(Total dissolved solids) Input (TD)• Slots• Conductivity measurement• 0.4Vpp probe excitation• 0-500mS range


2000 IO Expander2000 IO Expander

• Din-Rail mountingDin-Rail mounting

• Proprietary communicationsProprietary communications

• 24Vac/dc powered24Vac/dc powered24Vdc output

• Max 20 InputsMax 20 Inputs24Vdc isolated

• Max 20 OutputsMax 20 OutputsVolt free relay

• Two versions availableTwo versions available10in/10out20in/20out


Control FunctionsControl Functions

Up to 3 independent control loopsUp to 3 independent control loops• Autotune & gain scheduling• Cascade, ratio or override• Feedforward functions• Remote setpoint input• Remote power limits• Input track • Transducer scaling• Output characterisation• PV/SP Trending per loop (2704)


Setpoint ProgrammerSetpoint Programmer

• 60 Programs• 3 SP profiles/Program• 600 segments• Ramp Rate or Time to Target• Program & segment names• 16 Digital event outputs• Programmer mimic (2704)

Ideal for Ideal for • Multi-variable applications

Carburising Furnaces Test Chambers Autoclaves

• Multi-zone applications Creep & tensile testing 3 Zone furnaces Semiconductor Diffusion


2704 Vacuum Block2704 Vacuum Block

Application Software OptionApplication Software Option• V1 = 1 gauge input• V3 = 3 gauge input

Application Specific VersionApplication Specific Version• 2704VC

Function Block FeaturesFunction Block Features• 1 or 3 gauge input• PV in scientific format• Hi-Vac enable output• Auto Hi-Lo transfer• 6 switched outputs• Roughing pump timer• Leak detection


26/2704 Zirconia Probe Input26/2704 Zirconia Probe Input

Application Software OptionApplication Software Option• ZC = Zirconia controller

Application Specific VersionApplication Specific Version• 26/2704CP

Function Block FeaturesFunction Block Features• Most probes supported• PV in carbon potential, dewpoint or oxygen• Sooting alarm• Automatic probe clean• Clean recovery alarm• Probe impedance monitor


26/2704 Humidity Block26/2704 Humidity Block

Standard FeatureStandard Feature• Included in all controllers

Application Specific versionApplication Specific version• Model X26, OEM product

Function Block FeaturesFunction Block Features• Wet & dry technique• PV in %RH and Dewpoint• Altitude compensation• Solid State sensors use standard 4-20mA input


Toolkit BlocksToolkit Blocks

DetailsDetails• 32 Digital operators• 32 Analogue calculations• 50 User values• 4 User Switches• Timers & totalisers• Pattern generator• Digital programmer• Wiring block• Multiple input block

Toolkit BlocksToolkit Blocks• Used to create custom configurations• Equivalent to 900EPC user wiring• Provides maths & PLC functions


Standard(XX) unit includesStandard(XX) unit includes• 8 digital operations• Timers, totalisers and input operators• 4 user values

Toolkit 1 (U1) includes Standard plusToolkit 1 (U1) includes Standard plus• 16 analog operations• 8 digital operations(16 total)• Pattern generator• Digital programmer• Analogue Switch• 4 User values

Toolkit 2 (U2) includes Toolkit 1 plusToolkit 2 (U2) includes Toolkit 1 plus• 8 Analog operations (24 total)• 16 Digital operations (32 total)• 8 User values (12 total)

Toolkit Blocks – What you get


Standard Function Blocks

Timer BlocksTimer Blocks• 4 Available• On Pulse, Off Delay, One Shot, Min-On timer

TotalisersTotalisers• 4 Available• Provides a running total of a parameter and gives an output when a preset total is reached

Real Time ClockReal Time Clock• Day of week and time of day• Can be used to start other functions

Monitor blockMonitor block• Logs min and max values• Counts time above a threshold and provides alarm


Standard Function Blocks

Custom Linearisation Custom Linearisation • 3 Available, 16 point custom fit• Can be applied to any parameter

Switchover Switchover • Provides a smooth transition between 2 sensors

BCD Input BCD Input • Calculation of decimal value from BCD input• Used mainly for program number selection

Transducer Scaling Transducer Scaling • 3 Available• Shunt(melt pressure), load Cell or comparison Cal• Auto tare function


Digital ProgrammerDigital Programmer

Interfaces to Setpoint Programmer Interfaces to Setpoint Programmer • Timed control of a single output • Provides timed program event outputs • 4 separate outputs• 8 On/Off times• Run, Hold and Reset inputs


DigitalPattern No1

D OP 1

D OP 2

D OP 8

D OP 3

D OP 4

D OP 5

D OP 6

D OP 7

ON

ON

OFF

ON

ON

ON

ON

OFF

D OP 16 ON

Pattern GeneratorPattern Generator

Interfaces to Setpoint ProgrammerInterfaces to Setpoint Programmer• Provides advanced digital functions • 16 patterns can be stored• Patterns can be given meaningful names• Each pattern can have 16 outputs• 2 patterns can be active at any one time


Analogue Switch Analogue Switch Provides the user with the facility to select an analogue value based on an input index

• 8 Switches available• 8 Values per switch• Range limits & resolution• Values and Selection can be given meaningful names

Analogue SwitchAnalogue Switch




Multiple Input BlockMultiple Input Block




Wiring BlockWiring Block


Digital CommunicationsDigital Communications

Support for EI-Bisync Support for EI-Bisync • Parameter subset only

Slave Communications Slave Communications • 2 Communication slots• EIA232, EIA485 2 or 4 wire• Profibus DP• DeviceNet• Profibus DP/ Devicenet in slot H and itools in slot J is possible


Modbus Master CommunicationsModbus Master Communications

Uses Standard Modbus ModulesUses Standard Modbus Modules• EIA 232 or 485• Slot J only, 9600 baud• Standard in all units

8 Individually Addressed Slaves8 Individually Addressed Slaves• Broadcast mode = address 0

Possible SlavesPossible Slaves• S2000, 900EPC, 2500, 5100v plus more!• Third party devices

25 Parameters in 260425 Parameters in 2604

100 Parameters in 2704100 Parameters in 2704


User Interface CustomisationUser Interface CustomisationSummary views Summary views

• Loop summaries• Instrument summary view• Naming of loops• 10 Promoted parameters• Parameter renaming• Setting of access levels

Others UI features Others UI features • Programmer names• Segment names(2704)• Setpoint profile names• Alarm messages• 8 User messages• User screens(2704)• Custom enumerations


2704 User Pages2704 User Pages Max 8 customisable pages Max 8 customisable pages

• 7 Formats available• User selectable parameters & text• 10 parameter scroll list


Enumerations can be applied toEnumerations can be applied to• User values• Program user values• Pattern generator• Analog switch values• Digital programmer• Digital IO status parameters• Logic operator output status

Custom EnumerationsCustom EnumerationsCustom Enumeration Custom Enumeration Provides the user with the facility to enumerate

parameters with their own text

For example when a digital input =1 the user interface shows “Door Open” and when =0 itshows “Door closed”


Software Tools

ITools ITools • Configuration• Archiving of clone files• Setpoint program editing• Process trending• Data-logging• OPC connectivity

Profibus GSD Editor Profibus GSD Editor • Generates GSD file required by master


Process InputsProcess Inputs

• Reinforced(240Vac) isolation

• Excellent accuracy and stability

• 5 digit display with 0.25uV resolution

• RTD resolution better than 0.01ºC

• Controls to better than 0.1ºC @ 1500 ºC

• Max 8 analogue inputs


Excellent ControlExcellent Control

• Eurotherm PID and VP control algorithms

• Standard Cascade, Override and Ratio options

• Simultaneous view of all control loops

• Trending of setpoint and process variable

• Vacuum function block

• Zirconia function block

• Flexible control strategies


Setpoint ProgrammingSetpoint Programming

• Synchronised programming of three variables

• Easy editing and selection of programs

• Ramp Rate or Time to Target

• Customer defined program & segment names

• Graphical view of program status

• Flexible use of setpoint profiles

• Itools Setpoint Program Editor


User InterfaceUser Interface

• 2704 User Screens

• Provides operators easy access to parameters via loop summary lists

• Improve operator views by custom enumerating parameters with meaningful text

• Customised alarm messages

• Provide operator with prompts to perform an operation


Cost Competitive integrated solutionCost Competitive integrated solution

Combined in a single packageCombined in a single package• 3 Control Loops• Advanced setpoint programmer• Application function blocks• Analogue calculations• PLC logical operations• Excellent operator interface• Open communications


•Analogue inputs•High accuracy & stability•Full isolation - 240Vac

•Eurotherm PID control•Guaranteed performance•Easy set-up

•Setpoint Programmer•Fully featured•Easy to use

•Dedicated application blocks•Zirconia input•Direct vacuum measurement

•Toolkit blocks•Flexible control options

•Open Communications•Simple connection to master PLCs

26/2704 - Heat Treatment26/2704 - Heat Treatment

Applications•Atmosphere heat treatment•Vacuum heat treatment•Composite curing autoclaves•Materials testing & research•Ceramic/Brick kilns•Semiconductor crystal growing


•Analogue inputs•Extremely accurate RTD measurement

•Eurotherm PID control•Reliable performance•Multiple PID sets

•Setpoint Programmer•3 Synchronised profiles•Flexible, yet easy to use

•Dedicated Humidity application block•Wet & dry measurement•%RH or dewpoint control

•Toolkit blocks•Flexible control options•Compressor timing etc

•Open Communications•Simple connection to master PLCs

26/2704 - Environmental Control26/2704 - Environmental Control

Applications•Environmental testing•Semiconductor burn-in•Culture & plant growth•Incubators•Brick drying ovens•Paint drying ovens


•Analogue inputs•Direct input of variety of sensors

•Eurotherm PID control•Reliable & Guaranteed performance

•Setpoint Programmer•Standard feature, no need for expert programming

•Dedicated application blocks•Humidity, zirconia, vacuum & boiler

•Toolkit blocks•Creates custom solutions•Small machine control•Eliminates need for PLC

•Open Communications•Simple connection to master PLCs•Master Modbus to slave controllers

26/2704 - Solution Provider26/2704 - Solution Provider

Applications•Extrusion melt pressure•pH Controller•Mini fermenters•Carbon probe monitor•Rubber test machines•Wellhead pressure testing•Fuel/Air combustion control

Ref: P.ppt (09/08/2015) 1 EUROTHERM CONTROLS a bc 2604–2704 Multi-loop Controllers Overview of...

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