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AUTOMATIONLATEST DEVELOPMENTS IN PROCESS & CONTROL NOVEMbER 08 - MARCh 09

INSIDE...PLCS 06hUMAN MAChINE INTERFACES 08TEMPERATURE CONTROLS 10SOLID STATE RELAYS 14

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04Your guideto selectingte rigt PLC

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2/162 AUTOMATION NOVEMbER 08 - MARCh 09

Irrespective of your companys output,

manufacturing consumer goods,

intermediate goods, macines and

control panels, taking advantage ofopportunities quickly is vital if you want

to stay aead of your competitors.

Company environments have to be dynamic due to the pressure

of continued performance improvements to stay ahead of the

competition and the need for profitability within the modern

manufacturing environments.

Its a fact that those companies that can embrace change, out-

perform those that dont. The rigid automation systems built in the

past with closed networks and single PLCs make it hard to adaptsystems, these restrictions in themselves can become a barrier to

quick and efficient change, when companies really need to adapt.

Basic requirements for todays factory automation systems and

components involve:

Flexible and interchangeable modular functions to enable a

range or line extension and adaptations

Simple to use and easy to maintain

Cost effective optimum performance

Smart plug and play with embedded communication

and diagnostics

Compact high functionality in minimum space

Open protocols enabling simple communication with other

devices, decentralised or remote access for monitoring

and diagnostics

The challenge for todays engineers is not finding the products, its

finding a supplier who can and will help you propose the optimum

solution for your application. Ask the question, is my supplier

proposing a solution based on my needs, or does it lock me into a

specific protocol or approach? that may benefit the supplier morethan you and your company.

RS and Schneider Electric support the move to open architectures

and controller inside products with technical and applications

support to help you achieve the most appropriate and cost

effective solution be it a simple or complex system.

Are your systems and suppliers fleile

enoug to elp you stay aead?

SChNEIDER ELECTRIC

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3/163AUTOMATION NOVEMbER 08 - MARCh 09www.rsaustralia.com 1300 656 636

Selectingte rigt PLCPage 4

Welcome to te Novemer 08 edition of te new

RS Automation pulication. We ope you enjoy

te magazine!

PLCs and control technologies are the brains or centre of any system and

selecting the right one can be a real challenge. RS is here to help you choose

Whether its a brand new process, or replacing an existing out-dated controller,

choosing the right programmable logic controller (PLC) platform for your

application can be daunting. With a range of solutions from simple logic control

to compact, or advanced PLCs, the solution is simple if you ask yourself the

right questions. Find out what you need to ask on page 4 & 5.

Perhaps your process requires temperature control. Whether that is a basic

On Off control process or a more sophisticated proportional, integral,

derivative (PID) controller RS can help. This edition contains a very useful

section on improving your temperature control process as well as some of

the language of temperature control.

With a range of automation products from well respected and high quality

manufactures, RS is your link to finding the right solution for your automation

applications.

Visit www.rsaustralia.com and find out more about the products we can

provide to help you.

CONTENTS

Wats inside tis issue...

04 PLC GuideSelecting the right PLC

06 PLCsYour choice of compactor advance

08 hUMAN MAChINEINTERFACE

10 TEMPERATURECONTROLImprove your temperaturecontrol process

13 TEMPERATURE &PROCESS CONTROLProducts from Omron

14 SOLID STATE RELAYS

15 AUTOMATIONPRODUCTS

16 KNIPEx ThE PLIERS

COMPANYPioneer ideas in pliers

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www.rsaustralia.com

All products in this issue are sold subject to the terms & conditions of sale set out in the current RS 2008 catalogue.Prices exclude GST, which will be charged at the relevant rate. All prices valid until 31st March 2009.

Free delivery anywhere in Australia for all orders over $100 exclusive of GST.

WELCOME

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4/16AUTOMATION NOVEMbER 08 - MARCh 094 AUTOMATION NOVEMbER 20084 AUTOMATION NOVEMbER 08 - MARCh 09

Type of I/O Examples

Digital Input (I) Pushbuttons, limit-switches, float-switches, feedback from

contactors (N/C or N/O circuits auxiliary circuits)

Analogue Input (I) Thermocouples, process transducers (pressure, linear, or

current/voltage)

Digital Output (O) Relay output or Transistor outputs. Relay is easy to work with,

but transistor is more reliable and ideal for higher speed orrepeated switching

Analogue Output (O) Proportional voltage of current output. Typically 0-10V or

0/4-20mA ideal for speed control of inverters, DC motor

controllers and to panel meters.

Understanding your machine or process

is essential and drawing a simple block

diagram of it will help identify the control

devices and their physical locations. This

will help in planning the PLC system design,

calculating the level of I/O and considering

network or distributed control selection.

Once the control device requirements and

combinations have been defined, you

can now start the process of selecting a

PLC platform that meets the needs of

the process.

Selecting te rigt PLCfor your applicationCoosing te rigt programmale logic controller (PLC) platform for your

application and ensuring it meets te requirements of te process today

and in te medium term, can e daunting. Weter its a rand new process,or replacing an eisting outdated controller te steps and considerations

are fundamentally te same.

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5/165AUTOMATION NOVEMbER 2008 5AUTOMATION NOVEMbER 08 - MARCh 09www.rsaustralia.com 1300 656 636 5

Are you replacing an

eisting system?

Are you upgrading or replacing an old

system that you can no longer get support

for, or fails to meet the changing needs of

the process? It is unlikely that the program

from the old PLC will work with the new

PLC platform, especially if they are different

manufacturers, but the basic flow of the

program logic will be the same and can beused as the basis for programming the new

system. The existing control network could

be used by the new system check the

protocols being used.

Wat are te I/O requirements?

From the process diagram you can quantify

the amount of digital and analogue inputs

& outputs required. The digital outputs

could be either a relay or a transistor output,

however solid state switching is more

reliable. Therefore using a transistor outputto control a suitable solid state relay will be

more cost effective in the long term due to

reduced failures and maintenance.

Are tere special

I/O requirements?

Some of the I/O may require special inputs

and many PLC platforms offer specialty

modules that provide inputs and outputs not

native to the PLCs basic capability. These

modules provide inputs pre-configured

for devices such as temperature sensors

(PT-100 or thermocouple), or high-speed

counters (>50Khz) for use with shaft

encoders or resolvers.

Are tere any environmental

issues to e considered?

Will the environment in which the controller

and process be operating see extremes

of temperature or humidity? To ensure

maximum reliability the controller must

be kept dry and within its operationaltemperature range.

Wat communication

networks are required?

Various industrial control protocols are in

use today. These include DeviceNet,

Profibus, Ethernet/IP, CANopen, ModBus,

DH-485 and basic ASCII over RS-422A &

RS-232-C. The choice of communication

protocol selected will be driven by a need to

communicate with other existing equipment

and any protocol this equipment uses.Many modern PLC systems offer multi-

protocol communication and the option

of a variety of modules to support various

networking formats.

PLC Processor performance and memory requirementsThree common levels of processor performance are available from each manufacturer.

Logic controller Sometimes called a smart or

programmable relay. Simple to program and cost

effective for low I/O, slower speed, applications.

Compact PLC - An intermediate level offering

increased instruction sets and higher I/O capacity

than a logic controller.

Advanced PLC Offering greater processing

power, larger memory capacity and even higher

I/O expandability and networking options.

Greater I/O requirements increase the processing

time for each CPU cycle as the PLC processor has to respond to an increased number of

inputs. This processing time is more critical as the controlled process speed increases.

The following chart gives PLC platform performance positioning to help you select the

level of processing power required for your application.

As a starting point you should only consider a logic controller for slower processes with

an I/O requirement of less than 20 I/O. Beyond that level of I/O a compact or intermediate

PLC provides a better solution with increased processing speed available. For large I/O

applications with networking and remote I/O requirements an advanced PLC would be

the best choice.

The amount of memory needed for the program is more difficult to size, but modern PLC

processing units feature memory capacities suitable for the majority of application and

have the option of expanding the program memory if required.

Logic Controllers Compact PLCs Advanced PLCs

Logo! S7-200 S7-300C

Alpha FX1N & FX2N

FX3N

Q Series Q00,01

Zelio Twido Modicon M340

M340c

Zen CP1L CJ1M

CP1A, 2A CQM1/1H

Easy 500 & 700 Easy 800 EC4P XC Series

MicroLogix 1100, 1200, 1500

CompactLogix

SLC500 Modular

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6

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488-6757 S7-221 6 I/P 4 transistor O/P(24Vdc)

$323.00

488-6735 S7-221 6 I/P 4 relay O/P(85-246Vac)

$355.00

488-6729 S7-222 8 I/P 6 transistor O/P(24Vdc)

$499.00

488-6634 S7-222 8 I/P 6 relay O/P(85-246Vac)

$520.00

539-0162 S7-200 starter kit $1,140.00

444-4404 6 I/P 4 relay O/P (100-240Vac) $287.00

528-8609 6 I/P 4 relay O/P (24Vdc) $287.00444-4482 16 I/P extension module $267.00

528-8687 8 channel analogueI/P module

$600.00

444-4707 Programming softwareand cable

$456.00

TWIDO COMPACTCONTROLLERSUser friendly and flexible controllers with

powerful control functions and small footprint

design making them suitable for use in

applications where space is limited.

24Vdc inputs

Isolated outputs

Windows

based programming software

Relay outputs rated at 2A 250Vac

Transistor outputs rated at 0.3A 24Vdc

468-5762 16 I/P digital input module $303.00

434-1816 4 channel analogue I/Pmodule

$440.00

434-1822 2 channel analogueO/P module

$476.00

434-1844 2 channel RTD temperatureI/P module

$650.00

468-5807 Ethernet communicationmodule

$1,190.00

488-6454 Micro/WIN V4.0 software $730.00

320-8976 8 I/P 8 relay O/P $1,300.00

320-8982 16 I/P 16 relay O/P $1,750.00

320-9042 8 I/P 8 transistor O/P $1,300.00

320-9058 8 I/P 8 transistor O/P $1,750.00

320-9109 FX2N-16EX-ES/UL $453.00

186-5842 FXON-3A $446.00

320-9171 FX2N-HC $830.00

399-7806 GX developer FX $970.00

Fx FAMILY MODULESDIN rail mounting modules which attach

directly to the right-hand end of the previous

unit, block or module via a short integral lead.

FX2N-16EX-ES/UL: 16 I/P Digital expansion module

FXON-3A: 2 I/P, 1 O/P Module

FX2N-HC: High speed counter module

GX Developer FX: Windows based software

for FX series PLCs

S7-200 SERIES PLCsThe long term successor to the highly

successful S5 range, whatever the S5 can do,

the S7 will do it faster and easier, with built-in

communications and improved programming

software.

EEPROM memories for user program storage

4KB programme memory, 2KB data memory

0.22s processing speed

S7-221 CPU: 10 on-board I/O

S7-222 CPU: 14 on-board I/O

S7-200 SERIES ExPANSIONMODULESDigital and analogue modules to increase

I/O capacity in AC and DC powered options.

Options include standard I/O and special

function modules for PT100 temperature

probes and Ethernet communications.

Fx2N PLCTop of the Mitsubishi FX family of PLCs, offering extremely fast program execution, accepts up

to eight special function modules and provides maximum flexibility and control for all your factory

automation applications.

100% backward compatible with older FX units

Choice of 6 I/O sizes, expendable up to 256 I/O

0.08s basic instruction speed

8K step RAM, expandable up to 16K with EEPROM

125 applied instructions, 3072 auxiliary relays,

256 timers, 235 counters and 8000 data registers

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COMPACT PLCS

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455-6793 CPU 8k step $990.00

455-6816 CPU 14k step $1,230.00

455-6737 Main base unit 8 I/O slots $510.00

455-6822 QX80 16 channel digital I/P module $371.00

455-6939 QY10 16 channel relay O/P module $407.00

399-7812 GX developer software $2,280.00

455-6670 QC30R2 programming cable $137.00

148-177 Level 1 2MB RAM CPU $850.00

148-155 Level 2 4MB RAM CPU $1,790.00

148-149 6 slot backplain rack $212.00

148-183 16 channel digital I/P module $310.00

147-641 16 channel digital O/P module $368.00

147-988 4 channel analogue I/P module $800.00

147-770 Unity Pro (small) development software $1,600.00

510-1394 CPU 11 160 I/O, 10 module capability $780.00

512-5845 CPU 12 320 I/O, 10 module capability $1,040.00

512-5889 16 channel digital I/O module $365.00

512-5895 8 relay O/P module $540.00

510-1495 8 NPN transistor O/P module $430.00

510-1467 4 I/P & 2 O/P analogue module $970.00

536-5548 CX-One programming software $3,080.00

Q SERIES CPUs & ExTENSION bASE UNITSCost effective, powerful processors, ideal for local and remote machine

control, remote I/O networking of conveyors, pump control and many

other PLC applications in food and beverage processes.

Easy to set up and expand a system

Fast processing speeds and large

memory capacity

Uses Windows based GX software

MODICON M340 AUTOMATION PLATFORMRobust, powerful and compact, the new Modicon M340 PLC offers the

optimum response to the needs of machine manufacturers in the fields

of secondary packaging, materials handling, textiles, printing, food

processing etc.

Data rate 20KB/s to 1MB/s

Integrated 3 communication ports

Counter modules with ready-to-use

functions

CJ1M SERIES PLCsA modular system offering a wide range of connection

options from Serial to Fieldbus and Ethernet, ideal for

applications requiring up to 640 I/O points.

RS-232 ports

Memory Card

interface

Peripheral port

Data memory 32K words

211-152 S7-312C:10 I/P 6 digital O/P(24Vdc)

$950.00

227-854 S7-313C:24 I/P 16 digital O/P(24Vdc)

$2,040.00

211-427 S7-313C-2 DP: 24 I/P 16

digital O/P (24Vdc)

$2,600.00

453-2517 S7-300 series 16 I/Pexpansion module

$323.00

469-1694 S7-300 series 8 relay O/Pmodule

$342.00

539-1755 Step 7 Lite software V3.0 $114.00

SD Memory Card slot

Remote access via STN, GSM,

Radio or ADSL

Modbus serial link or character mode

SIMATIC S7-300SERIES CPUsA modular mini-PLC system designed

for the low-end and mid performance

applications offering user-friendly handling and

uncomplicated performance in a

fan-free design.

S7-312C

With integrated inputs and outputs

Ideal for small applications with high requirements

in terms of processing power

With process-related functions

S7-313C

With integrated digital and analogue inputs and

outputs

For installations with high requirements in terms of

processing power and response time

With process-related functions

S7-313C-2 DP

With integrated digital I/O and PROFIBUS DP

master/slave interface

For tasks with special functions

and the connection of

standalone I/O devices





ADVANCED PLCs

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493-3409 XBT-200 $285.00

493-3421 XBT-401 $570.00

493-3437 XBT-L1001M software $600.00

MAGELIS xbT-N DISPLAY UNITSDesigned for use with Telemecanique Twindo, Nano, Micro and Premium

PLCs to display status messages, alarms and maintenance information

as well as process data.

2 fixed legend, service keys (ESC, ENTER) which are non-configurable

2 fixed legend, left and right arrow keys, configurable as links to different

pages or for machine control

4 configurable and legend customisable keys

Configuring Windows

software available separately

XBT-N200

Alphanumeric LCD display with green back lights

2-lines of 20 characters

Powered by the PLC

XBT-N401

LCD matrix display with green,

orange or red back lights

4-lines of 20 characters

Communication, alarm and

PLC controlled LEDs

24Vdc power supply

Group and Category: IIC T5 Ex D A22

510-1849 NT3S-ST126BE $810.00

510-1861 NT3S-ST123BE $940.00

510-1984 Programming cable 2m $61.90

NT33 TOUCh-SCREEN TERMINALSVersatile, compact units offering powerful, free programming

functionality in a space saving compact design that lets you create your

own function keys wherever you want them on your screen and at the

same time make use of text in multiple languages.

FREE Windows

based programming via the Download Centre

at www.europe.omron.com

4.1 monochrome STN LCD display with green backlight

Support for floating point data

Save recipe data in non-volatile memory

120KB screen data capacity

Printer connection

NT3S-ST126BE

RS-232 port

NT3S-ST123BE

RS-232/485/422 ports

Real time clock

Historical alarms

456-5028 Text operator terminal 2 lines (5Vdc) $600.00

456-5034 Text operator terminal 2 lines (24Vdc) $1,220.00

399-6241 E series programming software $257.00

E-SERIES hMI PANELSA perfect blend of operator friendliness and powerful performance, with

free software drivers, backlit monochrome LCD display and password

protection.

Multi-language

Upgradeable firmware

Windows programming tools

IP65 panel sealing


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hUMAN MAChINE INTERFACES

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617-3340 Monochrome display $2,260.00

617-3334 Colour display $3,100.00

617-3378 WinCC flexible compact software $580.00

SIMATIC TP177b PANELSThese panels are designed to enable you to use more efficient text or

graphic-based projects for simple to medium level HMI tasks in machines

and plants.

STN LCD touch screed display

Numeric and alphanumeric inputs

FLASH memory

Colour: 256 colours, RS-232/485,

USB, MMC and RJ45 interfaces

Monochrome: 4 shades of blue,

RS-232/485, USB and MMC interfaces

617-2808 XBT GT2220 5.7 colour screen $2,280.00

617-2791 XBT GT2120 5.7 monochrome screen $1,550.00

617-2892 Programming cable 2m $417.00

617-2864 Programming software $910.00

xbTGT2000 SERIESTOUCh SCREEN DISPLAYSCompact, rugged and designed to facilitate your operator dialog

operations. Featuring two serial interfaces (RS232C-RS422-RS485)

to connect to automated systems, and a powerful suite

of graphic functions.

Colour or monochrome options

5.7 screen size supporting 4,096 colours

USB port

Analogue touch pad (1024 x 1024dpi resolution)

Vijeo Designer, a single software

package for the entire Magelis

XBTG/GT/GK/GTW range

16MB internal memory and

CompactFlash

Card slot

(128Mb to 1Gb)Password

protection

On-board scripting

24Vdc operation

617-3104 NS5 screen $2,920.00

617-3126 NS8 screen $4,380.00

510-1956 Programming software $1,100.00

NS5/NS8 VERSION 2COLOUR TOUCh SCREENSHigh quality interfaces for systems and machines controlled by Omron

PLCs via an RS-232C connection at up to 115KB/s, giving high speed

response to system and machine events and user input.

Two RS-232 and a USB ports

CompactFlash

slot

3 level backlight brightness adjustment

Supports 16 languages

NS5:

5.7 256 colour STN LCD display

(320 x 240dpi resolution)

20MB memory

NS8:

8 256 colour TFT LCD display

(640 x 480dpi resolution)

60MB memory

514-2581 Monochrome display $1,630.00

456-4952 Colour display $3,160.00

399-6241 Programming software $257.00

E-SERIES TOUCh SCREENSFeature packed and offering a blend of operator friendliness

with powerful performance,

they are suited to a wide

range of applications.

Real time clock

Backlit graphics display

Windows based programming

RS-232/485/422 ports

24Vdc supply

Monochrome: 3.8 display,

16 grey scales

Colour: 5.7 display, 256 colours





hUMAN MAChINE INTERFACES

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Improve your temperature

control processInvesting in modern temperature control equipment can provide returnsinstantly, improving product quality, consistency and reducing energy waste.

PID temperature controllers are now even easier to install and setup, wit

automatic self tune features. Tis allows tem to e quickly retrofitted in place

of eisting OnOff controllers witout specialist knowledge.

basic OnOff Control

The simplest form of temperature control is provided by

basic thermostats and temperature controllers.

When the process is cooler than the set-point, the heater is

turned on at maximum power. The process temperature then

rises approaching the set-point. Once the process achieves the

set-point temperature the heater is switched off completely. Due

to the thermal capacity of the heating element the process

temperature overshoots the set-point until natural cooling has

an effect. This is very noticeable in a process involving a large

thermal mass.

As the above graph shows, these fluctuations continue throughout

the heating process. The turn-on and off temperatures differ by a

small amount, known as the hysteresis, to prevent rapid switching

of the heater when the temperature is near the set-point.

PID Control

In simple terms, PID control can be thought of as :

Proportional How hard you drive the output

Integral How often you drive the output

Derivative Drives the output with respect to the

current rate of temperature change

A proportional control method can be used on its own and is an

improvement compared to basic on-off control, reducing fluctuation.

Proportional control varies the amount of energy supplied to the

heating element in direct proportion to the difference between the

current process temperature and the required set-point. PID control

combines the improvement that proportional control offers with

an integral and derivative function. The integral function prevents

the initial overshoot, while the derivative function eliminates the

temperature instability once the set-point is achieved.

PID control delivers the benefit of allowing the process temperature

to be reached very quickly without overshoot or continual fluctuation.

Process temperature fluctuates above and below the set-point. Process temperature reaches set-point quickly and stabilises

Advantages of On-Off Control:

Simple and cost effective method of temperature control

Requires virtually no setup

Disadvantages of On-Off Control:Overshoot during initial heating cycle

Imprecise control - process temperature fluctuates

around set-point

Inefficient un-required heating energy is wasted

Advantages of PID Control:

Improved control when compared to either proportional or On-Off

Elimination of overshoot and temperature error

Compensates for process thermal dynamics autotune feature

Only the energy required to reach and maintain the process

temperature is used

Disadvantages of PID Control:

Can be more expensive than a basic On-Off controller

TEMPERATURE CONTROL

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Autotune

Modern microprocessor based PID

temperature controllers offer an in-built

automatic self tune function. Once

installed this tuning function is selected

and automatically adjusts the controller

parameters for the specific process. The

Autotune function performs pre-set cycles

turning the heating element on and off,

and using a complex algorithm, calculates

the optimum Proportional, Integral and

Derivative parameters. By adjusting these

initial PID settings, the self tune function will

configure the controller to inhibit overshoot

and compensate for the rate of change

within the process. This gives the best

straight line control response and reduces

your engineering and commissioning time.

Reverse action

This is the most common mode of

operation. When the process temperature

is below the set-point the controller output

drives the heating element.

Direct action

This mode of operation is normally

associated with a cooling process, as the

output is only operated when the process

temperature is equal too or higher than

the set-point.

Dead and

Dead band or dead zone control allows a

neutral zone to be defined around the set-

point, for example, a deferential of +/- 5Caround a set-point of 50C. If the process

temperature increased above 55C an

output would drive a cooling function e.g. a

fan. If the process temperature fell below

45C another output would drive a heating

function e.g. heater element or operate a

valve and ignitor for a gas burner.

Te languageof temperature

control

454-2205 Relay O/P 100-240Vac $512.00454-2211 Relay O/P 24-48Vac/dc $587.00

612-5638 DC SSR O/P 24-48Vac/dc $599.00

538-3120 PSI-CON configuration software $192.00

611-8343 1 logic, 3 relay outputs $771.00

611-8371 4 relay outputs $850.00

Temperature Control Solutions

312-1784 Series 3300 1/32DIN 1 x SPST relay, 1 x SSR output $322.00

511-8897 Series 3300 1/32DIN 1 x SPCO relay, 1 x SSR output $329.00

348-8863 Series 9500P 1/16DIN 2 x SPST, 1 x SSR output $524.00

312-1807 RS-232 communication board $132.00

312-1813 RS-485 communication board $132.00

TEMPERATURE CONTROLLERS WITh COMMUNICATIONSSeries 3300 and 9500P DIN mounting temperature controllers with autotune function

for tuning to optimum PID values.

IP66/NEMA 4X protected front fascia

All can be used with Type B, E, J, K, L, N, R, S and T thermocouples and with PT100 RTDs

Optional RS-232 and RS-485 communication boards enable PC connection via ModBus RTU protocol

All 9500P series outputs and 3300 series first relay outputs

are rated 2A at 250Vac

Analogue re-transmission

18 DIN 48 x 48mm mounting

85-264Vac supply

6100+ SERIES TEMPERATURE/PROCESS CONTROLLERSThese instruments are microprocessor based indicators, single loop controllers and

profilers capable of measuring, displaying or controlling process variables such as

temperature, pressure, flow and level from a variety of inputs.

116 DIN 48 x 48mm mounting

Full PID control with Auto Tuning

Broken sensor detection and loop-failure alarm

Remote set-point and digital input option

Supports thermocouple, RTD and DC linear inputs

IP66 front panel protection

EUROThERM 3208TEMPERATURE/PROCESS CONTROLLERSEasy to use, innovative controllers offering precision control of

temperature and other process variables, together with a host of

advanced features not normally found in this class of controller.

Eight segment programmer

Heater failure detector

Modbus communication

Page 1,576

Page 1,578

Page 1,578 & 1,579

TEMPERATURE CONTROL

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Coosing te rigt temperature

sensor is key to te accuracy and

staility of te wole temperature

control system. In general, te

coice is split etween two

types of temperature sensors:

Coosing te rigt temperature sensor2. RTD Resistive Temperature

Detector PT100 / PT1000

RTDs or Platinum resistance thermometers,

sometimes referred to as PRTs, are

temperature sensing devices that change

resistance proportional to the temperature.

A PT-100 device will have a resistance of

100 ohms at 0C, and a PT-1000 device

1000 ohms at 0C. RTD sensors offerexcellent accuracy over a wide temperature

range (from -200 to +850C ), but are

particularly suited to applications with a

process temperature of -100 to +250C.

Unlike thermocouples, it is not necessary to

use special cables to make the connection

between sensor and controller. Most

temperature controllers that support RTD

sensors offer either a three or four wire

connection mode. This allows the unit

to eliminate any additional resistance in

the cable and therefore longer cable runs

of 20m or more are possible withoutcompromising the system accuracy.

1. Termocouples

Thermocouples are constructed by joining

two dissimilar metals together at a junction.

Thermocouples exhibit the greatest ability to

endure thermal and mechanical extremes.

This makes them suitable for applications

where robustness and durability is more

important than absolute accuracy. The

wide choice of thermocouple types andmaterials provides a range of operating

temperatures, but generally a thermocouple

is only the preferred option if the operating

temperature of the process exceeds

350C. Thermocouples are a cost effective

solution, however the connection between

the sensor and the controller must be

made using appropriately matched cable

and ideally the connection distance should

be kept to a minimum. Failure to use the

correct extension or compensating cable will

cause errors in the reading and instability

with changes in ambient temperature. Inelectrically noisy environments with motors

or large switchgear it is recommended

that screened cable is used to prevent

interference and unstable readings.

163-356 85-270Vac relay output $286.00

163-390 85-270Vac SSR output $303.00

163-362 24Vac/dc relay output $286.00

163-378 24Vac/dc SSR output $303.00

163-429 85-270Vac SSR output $510.00

163-435 85-270Vac relay output $499.00

163-441 24Vac/dc SSR output $510.00

163-413 24Vac/dc relay output $499.00

497-8991 eTron T 230V $200.00

497-8985 eTron T 115V $202.00

497-8979 eTron T 12-24Vdc 24Vac $200.00

DIN RAIL MOUNT DIGITAL ThERMOSTATThe eTron T offers a cost effective solution for users wishing to

add a basic temperature control function to an existingcabinet installation for example fan control.

PT100 sensor input

Adjustable switching hysteresis

3-digit LCD with either C or F selectable

10A / 250V changeover relay output

DUAL DIGIT TEMPERATURE CONTROLLERA sophisticated, autotuning D330 DIN PID controller with

selectable thermocouple, RTD or analogue inputs and

up to three outputs, with relay or SSR ouput options.

Large dual 4-digit LED display of set point and process value

Can be configured as 1 On/Off or PID control and up to two alarm outputs,

or as 2 On/Off or PID control (heat/cool) plus one alarm output

Inputs: Type J, K, T, R, S, C, E, B, N, U, W and Platinel thermocouples,

PT100 2/3 wire, -5 to 56mV, 0 to 10V, 0 to 20mA

PID TEMPERATURECONTROLLER

The 116th DIN PID500 is superb value, with a fully

featured auto-tuning PID controller with selectable

thermocouple, RTD or analogue inputs and

available with relay and SSR outputs

Dual display of set-point and process value

Inputs: J, K, T, R, S, C, E, B, N, U, W , PT100 2/3

wire, 0 to 10V, 0 to 20mA

Dimensions: H48 x W48 x D107mm


Go to www.rsaustralia.comPage 1,585

TEMPERATURE CONTROL

7/29/2019 Auto Au Nov08


Temperature & Process Control

With both ON/OFF and 2-PID

control as standard on all Omron

digital controllers and advanced

features like RT (Robust Tuning),

Cascade Control and GTC

(Gradient Temperature Control)

available with more advanced

models, the best control

method can be selected for

the application.

Why 2-PID? Simply better

control. Conventional PID uses

a single function block to control

the responses of the controller

to a target value and external

disturbance. Therefore, the

response to the target value

will oscillate due to overshoot

if importance is attached to the

response to external disturbance.

On the other hand, if importance

is attached to the response

to target value, the controller

will not be able to respond

to disturbances quickly. It will

be impossible to satisfy both

these types of responses using

conventional PID. 2-PID control

eliminates this weakness while

retaining the strengths of PID

control, thus making it possible toimprove both types of responses

and hence overall process quality.

Omron also offers a range of

monitoring products where

control is not a requirement.

Suitable for displaying or policing

a process, they indicate when the

process exceeds preset alarm

values, either via the easily visible

colour change display or a series

of alarm outputs.

Monitoring Products:

SingleLoop Control:

481-9274 E5CN-R2MT Temperature controller, DIN48 x 48mm,relay output

$407.00

512-6393 E5AN-R3MT Temperature controller, DIN96 x 96mm,relay output $767.00

512-6371 E5EN-Q3HMT Temperature controller, DIN48 x 96mm,12Vdc output, heater burnout alarm

$509.00

512-6387 E5EN-R3HMT Temperature controller, DIN48 x 96mm,relay output, heater burnout alarm

$509.00

611-9885 E5CSV Temperature controller, 12Vdc pulse output $303.00

611-9879 E5CSV Temperature controller, SPST relay output $303.00

611-7558 K3HB-HTA Digital panel meter, Thermocouple andPT100 inputs

$698.00

611-7671 K33-CPA Option board (Slot B), 1 relay (PASS)

SPDT and 12Vdc 80mA sensorpower supply

$132.00

611-7637 K34-C2 Option board (Slot C), 4 relays (HH/H/L/LL)SPNO for each relay

$136.00

611-7659 K35-1 Option board (Slot D), NPN open collectorevent input card 5 points M3 terminal block

$158.00

611-7750 K3MA-L-C Temperature meter, 100 240Vac $338.00

611-7744 K3MA-L-C Temperature meter, 24Vac $338.00

610-8829 K8AB Temperature relay, 0 - 399C/F,Thermocouple and PT100 input

$177.00

610-8813 K8AB-TH12S Temperature relay, 0 - 1,700C/F (minimumsetting 10C), Thermocouple input

$177.00

PROTECT YOUR hEATING APPLICATIONDesigned specially for monitoring abnormal over or undertemperatures. This temperature monitoring relay can preventexcessive temperature increase and therefore protect equipment.

Slim design, 22.5mm width

hIGhLY VISIbLE LCD DISPLAYTEMPERATURE METEREquipped with the same high quality colour change display, with two colour(red and green) LEDs, both temperature meters are highly visible.

Thermocouple / RTD input

DIN 96 x 48mm, with short depth 80mm

hIGh-SPEED, hIGh-PRECISIONTEMPERATURE INDICATORHigh speed, with a sample rate of 50Hz, these indicators also featurea clear and easy-to-use dual colour-change display, with two lines foractual value and set-point.

Optional communications cards are available, such as DeviceNet, RS-232C

Output and option slots option boards not compatible with K3N models

DIN 1/8 and IP66 housing.

100 240Vac

ThE EASY WAY TO PERFECTTEMPERATURE CONTROLMulti-range temperature controller with alarm function offers fieldselectable PID or ON/OFF control. The large, single display showsprocess value, direction of deviation from set point, output andalarm status.

Thermocouple and RTD (PT100) input

Simple dip switch setting for standard functions

COMPACT AND INTELLIGENTGENERAL-PURPOSE CONTROLLERSThe E5_N range of temperature controllers features a high-intensitythree colour PV change dual LCD display with a wide viewing angle foreasy status recognition, except for the E5GN.

Multi-input types, thermocouple/Pt100

100-240Vac

Available in four standard DIN formats

DIN 48 x 48mm

100 240Vdc supply

1 C/O relay output

From monitoring to control of single or multiloop systems, Omrons etensiveknowledge and tecnical epertise offers solutions for a variety of applications.

100 to 230Vac supply



Page 1,581

Page 1,379

Page 1,380

TEMPERATURE & PROCESS CONTROL

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Start using solid state relays todayTe fundamental functions witin te majority of process control systems involve

repeatedly performing a switcing action. Solid state relays (SSR) offer te usermany outstanding enefits for tis type of switcing. Selection and application

is easy and ere are a few simple guidelines and suggestions to elp you make

te most of tis tecnology.

Wat is a Solid State Relay?

A Solid State Relay is a switching

device which uses transistor technology

instead of mechanical contacts to do

the switching function. This switching

is performed by a Triac or SCR (SiliconControl Rectifier) dependant on the load

type. Both these switching devices are

members of the Thyristor family, and

input to output isolation is achieved by

the use of an optocoupler.

Typical SSR Internal Construction

Typical Hockey Puck type SSR

Selecting te correct SSR

for your application

Two output types exist within AC switching

SSRs. The first is commonly referred to as

Zero Voltage or Zero Crossing turn-on.

This type only starts to conduct once the

AC line voltage has passed through the

zero volt point. The second type is referred

to as random or instantaneous turn on.

This type begins to conduct as soon as the

control voltage is applied regardless of the

AC line voltage.

A choice of control voltages are available;

low voltage DC control typically 3-32Vdc,

or high voltage AC control typically 90-280

Vac. The control voltage is considered similar

to a relay coil voltage.

heating Applications

Heating applications have repeated

frequent load cycling as the elements are

turned on and off to maintain the required

temperature. Heating elements are

predominately resistive, so surge currents at

switch-on are low. This makes Zero Voltage

turn on SSRs ideal for heating applications.

Choosing the suitable solid-state relay is

easy to do if you consider the following:

Full Load current of the elements

Line voltage being switched

Available heat sink - oversize where

possible, or select a device with integral

heat sink

Ambient temperature - in heating

applications elevated temperatures are

common and you may need to de-rate

the SSR

Therefore, to maximize the life expectancy

of the SSR, the selected device will have a

continuous rating of at least 2x the full-load

current, Zero Voltage turn-on and a voltage

rating higher than the supply voltage.

AC Motor and Coil

Control Applications

Because of the inductive nature of AC

motors, and solenoid coils, high surge

currents occur at switch-on. This makes

random or instantaneous turn on SSRsthe most suitable type. When selecting a

suitable SSR for these applications you must

consider the following:

Full Load current of the motor or coil

Line voltage being switched

Starting duration and frequency -

repeated cycles will increase thermal

stress on the SSR requiring extra heat

sinking or overrating

Ambient temperature and available

heat sinking

Due to the high current during start-up theSSR must be over rated, compared to the

full load motor or coil current.

For motors, external over current protection

is always advisable to protect both the motor

and the solid state relay. This could take the

form of a motor protection circuit breaker

or thermal overload. Voltage selection is

important as back EMF generated during

motor wind-down or turn-off of a large coil

can be x1.5 x2.5 line voltage. To ensure

the maximum operational life the selected

SSR, it should have a current rating of atleast 3x the full load current, random turn-

on, and an over-voltage rating of more than

twice the line voltage.

Advantages of solidstate v

electromecanical relays

Advantages:

Long life and high reliability, more

than 109operations, reduced

maintenance costs

No contact arcing, low Electromagnet

Interference (EMI) and high surge capability

High resistance to shock and vibration

Fast switching and low coupling

capacitance

Logic compatibility and no

electromechanical noise

Disadvantages:

Higher cost than equivalent

electromechanical relay

Higher heat dissipation requires heat sink

SOLID STATE RELAYS

7/29/2019 Auto Au Nov08


Cant find watyou need?Try RS online, our guided navigation tools will

help you find the product faster

www.rsaustralia.com

184-5983 25A 3-32Vdc control $239.00

184-5999 50A 3-32Vdc control $267.00

218-1915 25A 90-280Vac control $208.00

218-1921 50A 90-280Vac control $241.00

613-8094 MS3 DIN rail mountheatsink

$107.00

ThREE PhASE SSRThe D53TP series provide three phase

switching in a compact puck style body using

SCR outputs for maximum reliability, with avariety of load types such as motors, heating

elements and transformers.

LED status indication

Line voltage 48-530Vac

Screw terminals

Matching heatsink available

479-3576 Green 1 N/O contact $14.40

479-7231 White 1 N/O I symbol $15.10

479-3908 Black 1 N/C 0 symbol $25.20

NON-ILLUMINATED FLUSh MOUNTINGMOMENTRY PUShbUTTON SWITChES50% cheaper than an actuator and contact block, plus easier to fit.

Rated to IP66 for harsh environments

22.5mm diameter hole mounting

Temperature range -25C to +70C

208-184 M12 3mm range $75.30

208-241 M18 5mm range $95.80

208-314 M30 10mm range $110.00

PRE-CAbLED INDUCTIVESENSORSFlush mounting sensors in a stainless steel

body with a PBT sensing face and two metresof PUR cable.

PNP N/O output

10 to 36Vdc supply

Reverse polarity and overload protection

Switching current 200mA

511-1048 24Vdc DPNO $45.40

511-1032 12Vdc DPNO $45.40

511-1010 24Vac DPNO $45.40

DIN RAIL 16AIMPULSE RELAYSUnlike a standard relay, these step or impulse,

relays alternate between two contact states

on each successive coil energisation. Once

power is removed the relay holds this contact

state until the next coil input occurs. Ideal for

any sequential or push-on, push-off application

including lighting, door or gate control, and in

security or alarm applications.

17.5mm wide module TS35 DIN Rail mounting

Minimum impulse duration 0.1sec

228-1986 M12 Nylon body $36.70

228-1992 M16 Polypropylene body $40.10

hIGh POWERFLOAT SWITChESGeneral purpose, side mounting switches

consisting of a reed switch and pivotedactuator magnet, encapsulated in a

waterproof housing.

Can be used for N/O or N/C operation

WBS approved for use in hot and cold water

Minimum liquid specific gravity 0.8

Supplied with one metre PVC cable

535-6364 4-32Vdc control 25A $49.50

535-6386 4-32Vdc control 32A $54.90

Rx1A SERIES SOLID STATE RELAYSExtremely compact industrial solid state relays that are fully

pluggable to make installation and servicing so much easier.

Operational range 24 to 265Vac rms, 45 to 65Hz

LED status indication

Screw terminals

Suitable for resistive and inductive loads

Page 1292

Page 1798





AUTOMATION PRODUCTS

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16/16

Quality for Professionals

Satisfying the highest expectations in terms of performance,

ergonomics and service life, KNIPEX products are designed to

meet the requirements of professional users, who must be

able to rely on their tools.

Innovation

KNIPEX pioneers ideas in pliers. KNIPEX innovations offer future-

oriented solutions and sets the standard for easy, effective and

reliable products. Development work relies on intensive sharing

of experience with users while incorporating the most modern

design technology available.

Ergonomics

Particular attention is paid to the ergonomic design in

the production of KNIPEX pliers. Products are designed

to reduce the effort required to operate and ensuring ahandle which is ideally suited to the moving hand to

ensure minimum fatigue and maximum safety at work.

287-8681 ESD Electronics pliers round head $87.30

600-7697 Flat Nose pliers $94.80

600-8101 Flat Nose ESD pliers $98.40

600-8117 Snipe Nose pliers $94.80

600-8123 Snipe Nose ESD pliers $98.40

600-8145 Round Nose ESD pliers $98.40

158-5647 Box joint pliers, flat wide jaws $69.30

158-5653 Box joint pliers, half-round jaws $69.30

187-7362 ESD Electronics pliers flat $66.40

524-3505 Diagonal cutters $116.00

600-8224 Diagonal ESD cutters $120.00

187-7390 ESD Electronics pliers end cut $99.10

158-5726 Super Knips style 0 $70.10



248-1811 ESD Super Knips style 6 $80.30

248-1827 ESD Super Knips style 0 $79.50

158-5732 Electronics Super Knips inox $52.90

158-5776 Electronics Super Knips SP tool $53.90

287-8653 ESD Super Knips medium $56.50

287-8669 ESD Super Knips hard $58.40

187-7340 Electronics pliers pointed head $83.10

187-7407 ESD Electronics pliers round head $82.40

187-8315 Electronics pliers round head $82.80

187-8343 Electronics pliers round head $78.90

Te Pliers CompanyKNIPEx as een specialising in te development

and production of ig quality pliers since 1882

and is recognised as Europes leading

manufacturer of tese products.

Section 58, pages 1986 to 1990

hANDTOOLS

auto au nov08

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