Engineer's Guide to Canbus
Transcript of Engineer's Guide to Canbus
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Sensor-Technik UKThe CANbus Technology, Pressure and Force Measurement Spec ia l is t
The EngineersGuide to CANbus
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21st Century vehicles where modular
sensors and controls are connected to a
network ba ckbone a re now poss ible
thanks to the w ide ly us ed CANbus . You
ca n throw aw ay the wiring loom and
replac e it with two wires! S mart ga uges
and sensors can be directly connected to
the CANbus. Control modules can
rea d/send da ta, display sys tems ca n
rea d/log da ta a nd b eca use it is a
netw ork, it is irreleva nt wh ere
compo nents a re phys ica lly loca ted.
Information display panels show the
driver/ope rator wha t he need s to know.Log g ing of informa tion feed s the se rvice
sys tem a nd pane ls display information
where req uired, for example next to the
valves on a tanker. CANbus also has the
ba ndw idth to c ope with real-time c ontrol
as well as da ta co llection.
Feature Benef i t
Software set-up Flexible, lower production cost
Standard protocol Able to connect to different equipment
Comm unication Comm unicate with other equipment
Fault diagnostic Err or detection for faulty components
Data logging No more false warr anty claim s
Monitor ing Misuse protection
Memor y Repeat working functions
Inform ation Operator can make decisionsImproved logistics
Electronic controls Better operator working conditionsLonger working hours
Hydraulic remote No vibration, no hazardsBetter viewing
Single system Combined controlsInformation servicing, etc.
Safety Close down facility and error protection
Standard units International regulations and laws approved
Fewer mechanical parts High reliabil ity, minim um failure rates
Standard hardwar e Exclusive to Sensor-TechnikLower cost Reduced wir ing, weight
Low servicing costs, fast repair
Data sheets,
brochures and even
websites cant explain
the full advantages of
moving to CANbus
Why CANbus?
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Lowe r cost production, one set of
so ftware, one sys tem and o ne supplier
on a standard communication system
g iving you flexibility: The s a me a ss emb ly
can be set-up via the software to
individua l custo mer a pplica tions without
having to c hange any ha rdwa re.
Communication systems: DifferentCANbus co ntrollers a re ab le to
communicate with each other over the
sa me b us, i.e eng ine to trans miss ion,
to the operator panel or to a ny other
controller.
Easily controlled and consistently
precise w ork: C AN Controllers c a n b e
linked together. For example, a controller
on one vehicle can talk to another youca n a dd mac hinery on a trac tor and it will
wo rk tog ether. Repe a t wo rking functions
ca n be logg ed b y simple se lection,
g iving hig h repea tab le q uality of work.
Better operator working conditions and
long er working hours: P ush s witches a nd
joysticks replace heavy or difficult levers,
g iving be tter driver comfort and be tter
viewing as valve blocks, pipes etc areelimina ted from the c a b. No vibration,
mechanical shocks, fatigue, white finger
etc., and the operator interfa ce c an b e
se t up to individua l applica tions .
Reduced mechanical components,
minimum fa ilures: As the o perator pa nel
electronically talks to the controller, the
removal of the hydraulics in the driver
ca b ca n be a chieved des irab le as new
European regulations come into force.
The c ontroller ca n be mounted close to
the hydraulic system, allowing pipework
to be reduced.
Elimina ting being in the wrong pla ce ;
remote view ing : C ANbus ca n b e linked
with other equipment such as remote
controls, video ca meras and GP S
(Global Positioning System) to track a
vehicle a nd to ens ure it only wo rks whereit has b een a lloca ted.
Information the key to improvement
and sa ving money: C ANbus ca n bring
together several systems, such as
weighing systems, information logging,
sta tistics , s ervicing reports, time per job
and others.
Fast a nd low cos t servicing a ndba ckup: No mo re w a sted investig ation
into why a vehicle has a problem; the
fault diag nos tic with c omplete error
mes sa g e w ill hig hlig ht the problem and
its also available by mobile telephone.
Low cost servicing, fewer warranty
claims: S a fety features/error d etec tion
can b e ad ded to ensure eq uipment
cannot be overloaded or misused andonly co rrect co mma nds are executed. In
the event of misuse the process will be
stopped and logged.
High reliability where it counts, use of
standa rd s ensors at low c ost, no need
for special senso rs or new technology:
The input/output mo dules a llow you to
use yo ur alrea dy proven sens ors which
are tried and tested although yo u ca n
of co urse c omb ine them with up-to-da te
CANbus sens ors too!
M aking the move to
bus-based control is
a big step, but it
neednt be a difficul t
one. Whether you
need fully approved
components with a
proven track recordor com plete system
designs, we can
meet your
requirements. And
well be with you
every step of the way
The bene f i t s of CANbus
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CANbus co ntrol units a nd HMIs (Huma n
Machine Interfaces) are used in a wide
variety o f functions in mo bile a nd
sta tiona ry ap plica tions . Via the va rious
co nfig urable inputs a nd outputs it is
pos sible to c onnec t all types of se nsors
a nd a ctuators d irectly to the co ntrol
unit; the us er-prog ramme d co ntroller
monitors the sys tem inputs a nd allowseither clos ed loop or open loop control
of the outputs. This w a y, compo nents
suc h as proportiona l valves c a n be
controlled directly.
Tog ether with extende d d ia g nos tics
functions a nd the C AN interfa ce , the
system offers unmatched in-service
fac ilities . In ca se of failure (suc h a s
broken c a bles or sho rt circuits) it a llow susers to restore the vehicle to safe
co nditions and provides service sta ff
with the right tools for quick and easy
diagnostics. With the additional
possibility of remote (wireless)
maintained diagnostics, CANbus is
ca pab le of ma king a significa nt
co ntribution to increa se d ve hicle
availability and productivity.
More and more vehicle manufacturers
a nd a utomotive c ompone nt suppliers
a re realising the b ene fits o f the CANbussys tem. This technology ha s now
reache d a sta ge where internationa lly
a greed sta nda rds exist, so that different
ma nufac turers electronics ca n
communicate together. A typical
mod ern truck might ha ve se pa ra te
electronic modules controlling engine,
automatic gea rbox, ABS brakes and
on-bo a rd hyd raulic co ntrol. The eng ine
mod ule ha s a sens or rea ding RPM. Allthe other mod ules, s uch a s the
gearbox, need to know the engine RPM
to o pera te c orrec tly. The e ng ine m od ule
will broadcast the engine RPM message
on the CANbus , and a module
connected to the bus can receive the
mes sa g e a nd us e that informa tion. This
means that the engine RP M senso r
need only be connected to one of the
modules.
The versa tility o f CANbus mo dules is
evident from the wide rang e o f
a pplica tions in which they a re us ed:
sp ec ia lise d civil eng inee ring ; m ob ile
cra nes ; a g ricultural/ha rvesting
machinery; forklift trucks; refuse
co llec tion ve hicles; stea mrollers; a ircra ft
towing vehicles; road sweepers;
exca vators; fire eng ines ; military
eq uipment; b oa ts; s hipyard cranes;
digg ers; a nd ma ny others
Wha t c an CANbus do?Applications include:
Engine management
Electro-hydraulicsteering systems(steering-by-wire)
Hydrostatic drivecontrol
(driving-by-wire)
All control functionsof working hydraulic s
Transmission control
Automatic levelling
and positioning ofplatforms
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The Controller Area Network (CAN) was
originally developed by Bosch for use in
the a utomotive indus try, but has
esta blished itself as the s tanda rd b us
system for mobile applications, and is
defined under ISO 11898. CANbus
sys tems exhibit hig h tra nsfer ra tes up to
1Mbit/se c a nd high d a ta trans miss ion
reliability. A number of differentcapabilities (CRC, frame checking,
acknowledgement, bit monitoring and bit
stuffing) enable the CAN protocol to
recognise errors in the transmitted data
(ca used for example b y electroma gne tic
disturba nce s) a nd to co rrec t them. This
correction takes place with very little loss
of time, making CANbus extremely
reliable in demanding applications.
A pair of wires forms the transmission
med ium. The leng th of the netwo rk ca n
be up to 40m for the m a ximum 1Mbit/sec
trans miss ion spe ed, b ut networks c an b e
up to 1000m in length without the need
for repeaters and are practical for
trans miss ion ra tes o f 80Kbit/sec o r les s .
The numb er of nod es on the netwo rk is
unlimited in the ory, but in pra ctice
depends on the type of chip used. Withcommonly used chips, 32, 64 or up to
110 nodes per network are possible (or
128 with res trictions ), whilst further no de s
ca n be acc ommoda ted by using
repea ters o r bridg es.
CAN is a multi-ma ste r sys tem w ith line
topolog y a nd real-time ca pa bility. Unique
identifiers contain information not
directly related to the address of a
participant, but to the contents of a
message (such as temperature, rotational
speed or linear speed). All participants
check out the identifier being transmitted
and dec ide if the type of mess ag e is
releva nt to thems elves . In this wa y, all
messa ges ca n be received from many or
a ll of the pa rticipa nts s imultane ous ly. The
unique identifier also determines the
priority of the mes sa g e rela ting to bus
ac ces s. S hould a number of participantstry to access the bus simultaneously, the
higher priority message is guaranteed to
ga in bus access.
Standard format (11-bit identifier) and
extend ed forma t (29-bit ide ntifier) are tw o
different messa ge formats that c an exist
on the sa me p hysica l CANbus. The C AN
2.0 B specification supports both formats,
while CAN 2.0 A on ly a llow s fra me s with11-bit identifiers .
Throug h co ntent-oriente d ide ntifiers in
the mess ag e, the sys tem achieves a high
degree of configuration flexibility and
allows a simple extension of the network
to include further d evice s.
High per fo rm anc eNetworks of up to
40m will support
transfer rates of
1Mbit/sec
Networks up to
1000m in length
without repeaters arepractical with rates of
80Kbit/sec or less
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In February of 1986, Robert Bosch
introduced the CAN serial bus system at
the SAE congress in Detroit. It was
des igned to handle short mess ag es,
support multi-master access, and offer a
high degree of reliability. In mid 1987,
Intel delivered the first CAN chip, and
toda y more tha n 20 chip ma nufac turers
produce devices that offer CANinterfaces.
CAN quickly gained a dominating
pos ition a mong bus protoco ls. In 1999
clos e to 60 million C AN co ntrollers
ma de their wa y into a pplica tions; more
than 100 million CAN devices were sold
in the year 2000.
A big a dva ntag e o f the C AN buscompared to other network solutions is
the p rice /performa nce ratio. P rice wise,
CAN is the mo st a fforda ble netw ork next
to a regular serial channel.
With CAN being a pure data link layer
implementa tion, hig her level a pplica tion
layers have been developed to increase
CANs suitability for use in specific
areas of different applications...
SAE J1939As a real-time CAN solution for heavy
duty a pplica tions , J 1939 is s uited for
equipment used in industries ranging
from a g riculture, co nstruction, a nd
fire/res cue to fores try, m a teria ls
handling, and on- and off-highway.
Communication systems designed
ac cording to J 1939 standa rds are
EMI/RFI tolera nt, free of co nne c tion
wires , ea sy to insta ll, a nd fea ture log,
record, remote access, and self-
diag nos is c a pa bilities . The J 1939
sta nda rds fam ily is ma intained to
ensure CAN device interoperability.
CANopenCANopen is a network technology
optimise d for use in industria l controlenvironments , in ma chine internal
networks a nd in embedd ed s ystems
(any control unit deeply embedded in
a de vice with e lec tronics). In indus tria l
co ntrol terms CANopen is a fieldbus .
S ome fieldb us a pplica tions use
derivations from RS485 for similar
emb edd ed networks. However, with
RS 485 the n etwo rk de signe r/de velope rneed s to invent many c ommunica tion
routines. CANopen, on the other hand,
features a pre-defined set of network
co mmunication functiona lity.
W hats ahead for C AN ?Although the CAN protocol is now 15
years old, it is still being enhanced. For
example, at the beginning of 2000 an
IS O tas k force involving a number ofco mpa nies defined a protoco l for the
time-trig g ered tra nsm iss ion of C AN
m e ssa g e s .
In a dd ition, o ther sta nda rds are b eing
formed to e nab le new items o f equipment
to be connected for example allowing
simple d ata trans miss ion b etween new
ma chinery and a tra ctor. Also , d ifferent
industries are generating their own
spec ifica tions, increas ing the sc ope of
CAN as a universa l interfa ce .
A pro toco l w i th a ped ig reeThere are a number of
higher protocols such
as LBS, OSEK, SAE
J1939, CAL (CAN
Application Layer
the basis for the
communications
profile CANopen),DeviceNet and others
which have been
standardised. These
are available on
the so-called
appli cation layer
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Lots of manufacturers will tell you that their
products are freely programmable, but
wha t do they really mea n? More often it
mea ns freely prog ramma ble with the
software that they supply. In effect, theyre
locking you into their products.
With Sensor-Tec hniks CANbus p roducts,
you ca n use w hatever software bes t suitsyour needs a stand ard programming
language like C, or an IEC 1131-3
co mplia nt g raphica l prog ram, including
Function Block Diagram, Ladder Diagram,
Instruction List, S tructured Text or
S eq uentia l Function C ha rt. Tha t mea ns
you can buy products from many different
manufacturers, but put your system
together using a single softwa re pa ckag e.
S ens or-Tec hnik offers a n extensive function
library o f rea dy-to-use co mpone nts,
ma king it q uick a nd simple to d evelop
even complex applications. Debug and
diagnos tic tools a re a lso ava ilab le on
req ues t. Alterna tively, S ensor-Tec hnik ca n
develop your complete software
application for you.
Softw are safetyOur freely prog ramma ble software is
already approved by international
standards and, used together with
approved hardware, will save time andmoney a ss ociated w ith getting approvals
after the project is completed, if that is
even po ss ible.
Safety standards are particularly important.
The s a fety sta nda rds a uthority TV ha s
a lread y c ertified so me of the proprietary
CAN-ba sed sa fety systems and the
software used to program them. CANopen-
Safety is the first standardised CANsolution to earn a tentative BIA approval.
Also, approval of the CANopen framework
for maritime applications by one of the
lea ding c la ss ifica tion s oc ieties wo rldw ide
Germanischer Lloyd is in preparation.
Free ly p rogram m ableProgram yourapplication in: Function Block
Diagram Ladder Diagram Instruction List Structured Text
SequentialFunction Chart C
Single package for
generation ofgraphic s, text andpages: Simple
programming WYSIWYG
technologyinterface
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Ma ny prod ucts in S ens or-Tec hniks ra ng e
a re also S AE J 1939 complia nt, and there isa ss ociated config ura tion s oftware. This
simple-to-use software with familiar
Window s interface a llow s g enera tion a nd
editing of user-specific graphics, text and
pages. It dramatically simplifies the
ge nera tion of tables o f variab les, a nd o f
linking these to g raphics a nd to rea l-world
text messages. It has been designed to be
eas y to learn and use so that you can be
config uring your s ystems within minutes .
The ed itor ha s b een e q uipped w ith a spe cial
WYSIWYG interfac e for the repres enta tion of
the ope rating pa nel display. This me a ns tha t
the character set of the device is presentedon s creen in exactly the wa y it will a ppea r
on the d evice. The s a me a pplies to
graphics, which are shown in exactly the
wa y they will a ppea r on the LCD d isplay.
To s implify da ta g ene ration, d ifferent co lours
a re as sign ed to individua l functions . Thus,
the different entries can be easily identified
on the display. In co nfigura tion m od e, the
J 1939 software provides views of the editor
with J 1939 conne ction, the ta ble of
variables, and the graphic representation of
the connected eq uipment.
J1939 com pliant configuration softw are
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Brief given
Farmers are under constant pressure to
improve productivity and cut co sts. Hence
every machine has to be more ac curate and
efficient in order to meet ever more stringent
targets, such as minimising size and weight.
One manufacturer needed a display unit to
pick up CANbus signa ls a nd d isplay them to
the operator. It also had to make it easy for
the operator to make adjustments to keep the
vehicle running constantly. Further, the display
unit pac kag e ha d to look uniq ue for the
customer.
The soluti on
The s olution w a s a sta nda rd G raf mod el AT3
CANbus HMI that had all the functions
required for this application. It was supplied
with freely-programmable software including
graphics and wa s re-pac kag ed in the
customers own housing.
Implementation
What was required was to specify the signals
that needed to b e displaye d a nd the control
signals that were need ed by the ope rator in
order to control the trailer. Once this was
de termined, implementa tion w a s simply a
q uestion of se tting up the unit to displa y w ith
the appropriate graphical and functional
sc reens. The prog ram w a s s imple to write in
standard Graf C software, and the images
uploa ded in JP EG format.
Conclusion
With simple modifications to a standard product,
the customer gained a piece of hardware that
wa s uniq ue in its mec hanical style b ut which
provided a ll the functiona lity req uired.
Brief given
As a g ricultura l machines ha ve de velope d in
co mplexity a nd s ophistica tion, c ustomers
ha ve dema nde d more ope rator control. The
la test version of a pota to ha rves ter from
S tand en featured 55 individua l switching
signals, with which the operator can control
30 individual functions. In development, it was
realised that the practical limits of hard-wiring
had bee n reached.
The soluti on
S tand ens ma in hydra ulic va lve supplier
proposed a CANbus s ystem using the robust
a nd proven ES X co ntrol modules from
S ens or-Tec hnik, w ith s oftwa re w ritten b y the
sup pliers e lectronic division.
Implementation
The driver interfa ce co ntrol unit ha s a
membrane fascia, interfaced to the bus with a56-channel input and 32 LED indicator output
mod ule. To a llow the ope rator to view a nd s et
defaults for flow rates, delay and response
times a nd to monitor pres sures in circuits, a
Wachendorff OPUS Light four-line operator
display pa nel is inset in the fas cia. The s ystem
drives between 18 and 24 valves, depending
on the c ustomer s pec ifica tion for the ma chine.
Functions which previous ly c ould o nly ha ve
been manua lly preset on the ha rvester can
now b e s et in-ca b b y the operator as req uired,a llowing far grea ter control on the q uality of
the crop sample produced by the harvester.
Optional automatic sensors for machine
levelling, discha rge elevator heig ht, depth
control and axle steering position can be
plugged into the main ESX processor.
Conclusion
Sta nden ha s s aved significa nt costs, ma inly
due to reductions in commissioning times .
The simplicity of the wiring loom a llowedS tand en to b ring the wiring in-house ,
de livering a dd itiona l cos t sa ving s.
CANbus i n ac t ion ... Hydraulic Mac hinery.... Rail Industry ...Root c ropharvester
Bale trailermanufacture
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Standen has savedsignific ant costs,
mainly due toreductions i n
commissioning time
Operators have fargreater control of the
operations and themanufacturer has aunique competitive
advantage
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Brief given
Acce ss pla tform fire fig hters need to be a ble
to park their vehicle very accurately. Get it
wrong a nd e ither the platform wo nt rea ch or,
if the platform has to extend too far, the
vehicle could fall over due to lever effects.
The soluti on
A CANbus co ntroller and HMI unit we re
se lected to co ntrol the hydra ulics for the
outside s tab ilise r feet, a pplying more press ure
where needed to adapt the balance as the the
pla tform is rotated . The s ystem a lso controls
the extension of the platform, with fail-safes
for overloa d cond itions . The s ystem interfa ces
to the existing eng ine C ANbus s ystem to
speed up or slow dow n the hydraulic pump.
Implementation
The bigg es t iss ue here wa s to s et up the HMI
to sho w the o perator the exac t position o f the
pla tform, indicating a t the sa me time ho w
much more extension was possible before
any overloa d, s o that a n ea rly de cision could
be mad e a bout whether to move the vehicle.
Safety considerations included using the
CANbus s ystem to first tes t the ground und er
the vehicle to ens ure tha t the surfa ce is s ound
enoug h to suppo rt the vehicle.
Conclusion
Fire engines ca n now b e pos itioned and used
within minutes of arriving on the scene,
a llowing fires to b e ta ckled more q uickly a nd
with a higher degree of safety.
Brief given
Go ldhofer manufac turers a rang e o f loa d
ca rrying pla tforms, including he a vy duty
modules capable of transporting enormous
structures weighing many hundreds of
tonnes. Among its range are multi-axis
hydrostatic self-driving units which can be
use d either sing ly o r with multiple units in
tand em. C ontrolling a single module is a
cha lleng e c ontrolling a nd sync hronisingmultiple units is extraordinarily demanding.
The soluti on
CANbus wa s s elected as the communica tions
bus for the o n-bo a rd stee ring, hydraulic level
a djustment a nd d ies el engine drive functions .
It was a lso sugg ested as the best means of
synchronising multiple platforms.
Implementation
Each platform includes a CANbus ESX hostco mputer and a further ESX axis control
mod ule. The ES X host co mmunica tes bo th with
the axis control module, and also with other
ESX host modules on as many other platforms
a re req uired, d elivering tig ht sync hronisa tion of
movement in a multi-platform sys tem. The ES X
host computer controls the steering on each
platform directly, based on information from
the other ESX host modules, and from angle
feedback signals from the wheels delivered
via the ES X axis co ntrol mod ule.
The a xis c ontrol module a lso mo nitors the
speed of each w heel and feeds this
informa tion b a ck to the ES X hos t fora utoma tic throttle a djustmen t. The C ANbus
co ntrollers a lso monitor a nd control the
proportional valves for the hydraulic level
ad justment system.
Conclusion
Co st-effective cros s-linking of a ll the C ANbus
co ntrollers ma kes it poss ible to d es ig n a fully
mod ula r, d ece ntra lise d co ntrol sys tem. With a
pa ir of wires forming the b a sis o f the
tra nsmission med ium, ca bling is kept to a na bs olute minimum. The high trans fer rates of
CANbus with exce llent trans mission relia bility
ens ure all pla tforms in a sys tem receive
control signals at exactly the same time,
g iving tig ht sync hronisa tion of moveme nt.
Agricultural Machinery.. . Municipal Equipment. . . Construct ion Equipment. . . Mil it ary Vehicles.. .
M ultiple tandemself-driving platforms
The CANbus
implementationallows the wholesystem to bedesigned in modularfashion for ul timateflexibility
Fire fightingvehicles
CANbus is allowingfire fighting vehiclesto get into positionmore quickly and tobe used more safely
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The ES X family o f freely prog ramm a ble c ontrollers from S TW is sp ec ia lly
designed for mobile applications such as agricultural machinery, construction
eq uipment, man a nd ma terial lifts a nd ma ny other demand ing tasks. Rob ust
cast-aluminum housings with an IP65 rating (optionally IP67) offer a high
degree of safety in terms of EMC and the extremes of outdoor environments.
The ES X family a lso offers c ontrollers tha t mee t the req uirements of s a fety
no rms such a s AK 4 (DIN V VDE 0801, D IN V 19250), C a teg ory 3 (EN 954-1)
a nd S IL 2 (IEC 61508).
With all ESX family controllers, the inputs and outputs are freely
prog ramma ble. The us er is a ble to rea lise H-Bridg e functiona lity to c ontrol
motor functions. Via RS232 and CANBus interfaces, bridge and gateway
functionality can also be realised.
The rang e o f CAN controllers include s hig h pe rformanc e s tand a rd co ntrollers,
co mpa ct c ontrollers, micro co ntrollers, c ontrollers w ith da ta log g ing
ca pa bilities , a nd c ontrollers offering remote da ta trans fer via G MS /G P RS o r
the internet. S TW a lso supp lies a n extensive ra ng e o f I/O mo dules a nd ba byboa rd I/O c ards , test a nd simulation b oxes, s imple d isplays, and ded ica ted
CANbus ca bles.
About STWFounde d b y Ka tharina a nd Wolfg a ng Wied ema nn in 1985,
S TW is d riven by a pa ss iona te an d end uring p ursuit of new tec hnolog ies ,
es pec ia lly whe n it come s to s olving co mplex technica l problems . The
original product focus sensors and measurement was expanded to
include mobile controllers in 1989.
The high q uality sta nda rd produc ts o f the S TW g roup, co mbined with the
loc a l ma rket knowledg e a nd a pplica tions unde rstand ing of S ens or-Tec hnik
UK, gives us a formida ble s treng th in reso lving problems a nd p roviding
systems solutions and makes us a reliable, long-term partner for our
customers.
STW
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ESX C ontrollerA rugged standard controller for sensor-actuator management,capable of executing a number of tasks in real time. It has been developed especially
for use und er ha rsh co nditions a nd extreme temperatures, functioning from 40 to
+ 85C in vehicles a nd ma chines. Freely prog ramma ble in C or IEC 1131-3 graphica l
interface.
ESX-LT C ontrollerA more c ompa ct version o f the s tand a rd co ntroller forse nso r-a ctuator ma nag ement, w ithout compromising on c a pa bility or functiona lity. It
has been developed for use unde r harsh cond itions and extreme temperatures,
functioning from 40 to + 85C in vehicles a nd ma chines. Freely progra mma ble in Cor IEC 1131-3 graphical interface.
ESX M icro C ontrollerThe ne we st a dd ition to the ES X co ntroller family is ahighly compa ct product capa ble of acting as an independe nt controller or as a slave
in a network. Its co mpa ct size me a ns it is ide a lly s uited for spe ciality ma chines
because of its compact design.
ESX-C 2C C ontrollerThe freely progra mma ble ES X-C2C mo dule not on lyprovides data logging capabilities for mobile machines, but also enables remote
diagnos is o f systems via an internal GS M modem for enhanced customer support
se rvices . Da ta trans fer is via G S M/G P RS o r internet, a nd the mo dule ca n a utomatically
se nd S MS text mess a g es . Text mes sa g e a la rms ca n be use r-de fined. The mod ule
provides bridge and gateway functionality.
ESX-D IO S/D IO M I/O M odules These I/O mo dules fo r mob ilea pplica tions extend the I/O ca pa bility of a C ANbus m a ste r controller.
ESX B aby Boards The ES X can be eq uipped with up to two interna llymounted extension modules called Baby Boards. Four different basic module types
exist, on e a ch o f which 6 I/Os a re ava ila ble. Thes e four bas ic types ca n a ga in be
varied through altering the hardware assembly. On the Baby Board B it is possible to
spe cify the type o f some inputs or outputs with software.
ESX Test/Sim ulation B ox A tes t bo x in 19-in ra ck forma t which p rovide smonitoring circuits a nd indica tors for a ll inputs a nd o utputs, a s w ell a s a co nnector for
the ES X, to fa cilitate progra mming a nd testing of ES X softwa re. All inputs a nd outputs
may b e sw itched a s d esired o r connected to simulators for sens ors and ac tuators.
ESX-H M IThe ES X-HMI rea ds in C ANbus me ss a g es a nd d isplays them for fa stand easy diagnosis of system related hardware and software states. Error codes and
information co des , defined d uring prog ram development, can be as signed to ea ch
ma chine a nd/or failure m od e. Two push b uttons on the display a llow the ope rator to
scroll through messages and implement simple system actions.
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RTS
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CANbus c omponents...
Reig g er Telemetrie S ystem e (RTS ) has de velope d a rang e of innova tive
telemetry systems for the agricultural market, enabling remote diagnostics
and ma intenance, da ta a cq uisition, fleet ma nag ement a nd theft protection. As
we ll a s o ffering a rang e of stand a rd prod ucts, RTS is a de pt at developing
individua l telemetry projec ts to mee t the nee ds of individua l custome rs.
RTS prod ucts a re CAN-ba se d s ys tems , built around S TWs ES X-C2C CAN
controller and teleservice communications module. Systems collect data from
both office and machinery, and transmit it to a central PC over GSM orBluetooth. GPS is also employed for vehicle position monitoring and site
mapping.
About RTSRieg g er Telemetrie S yste me ha s be en a t the forefront of a g ricultural
eng inee ring for more than 50 yea rs. Tod a y RTS lea ds the wo rld in
solutions to enable precision farming, e-farming, and to facilitate and
simplify government d epa rtment insp ec tion. The c omp a nys s olutions a re
tailored to meeting the need s of loc al ma rkets, d raw ing on the very la test
technologies.
M oD aSys Und er EU Direc tive 178/2002, fa rmers a re req uired to reco rd a llproduction da ta. The RTS MoDa S ys da ta log g ing sys tem helps to fulfil this ta sk,
simply a nd co st-effectively. MoDa S ys monitors the ma chinery functions , plus
mac hine da ta s uch a s e ngine speed , vehicle speed and idle t ime, presenting the
da ta a s real-t ime g raphs o r da ily overviews . MoDa Sys also mo nitors a rea covered,
distance covered and the route travelled, as well as detailing the hours of work.
MoDaSys transfers data wirelessly via Bluetooth or GSM.
Supplied complete with comprehensive agricultural software, MoDaSys is the
essential tool for farm managers or fleet management service partners.
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Wachendor f f
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CANbus c omponents...
The Op us fa mily from Wa ch end orff provides a n extrem ely hig h q ua lity ra ng e
of displays, HMIs and operator panels, developed with commercial vehicle
a pplica tions in mind. Attrac tively d es ig ned a nd expertly finishe d, these co ntrol
interfaces for CANbus systems are sealed to IP65 and feature backlighting
that adjusts automatically to ambient light.
The Opus rang e include s rugg ed ope rator termina ls eq uivalent to a
pow erful indus tria l PC with w hich a who le rang e of different a utomotive
a pplica tions ca n be co ntrolled in pa rallel. The pa nels co mbine the lates ttechnolog y with rugg ed workma nship. S D fla sh me mory cards make it eas y
to trans fer project da ta to s pecific o perator panels from a PC . Eas e of
operation is co nsiderab ly enha nced thanks to the mod ular wa y in which the
user interface ca n be cons tructed.
Opus ope rator panels have b een use d in a raft of applica tions a cross the
globe. For example, used a s a n information a nd c omma nd c entre in Fendt
trac tors, the OP US Thor controls a variety of ac ces so ry eq uipment and trac tor
functions. In K ss bo hrers P isten-Bully rang e o f spec ia l purpose vehicles, the
Opus Thor wo rks just a s relia bly in the free zing s now of the Alps a s in theburning d ese rt sa nds of Duba i. In Bucher roa d s weepe rs the Opus 21
combines the roles of control centre and instrument panel.
About W achendorffWa che ndo rff ha s be en ma nufac turing e lec tronic devices for a utoma tion
a nd proces s o ptimisa tion of mac hines, plants a nd mo bile ma chines for
over 25 yea rs. Every pane l is c omp rehens ively teste d, w ith Wa che ndo rff
ha ving in-hous e fac ilities for sa lt s praying, full enclos ure tes ting , EMV
testing for vibration resistance, and climatic testing.
O pus A1 Full VG A TFTd isp lay o pera tor interfac e for use in d ema ndingco mmercial vehicle a pplica tions . The dieca st a luminium ho using p rovide s fla nge
mounting on the rear.
O pus A2 Co lour or monochrome opera tor interfa ce for use in dema ndingco mmercial vehicle a pplica tions .
O pus A21 Control interface for CANbus systems, with IP65 ABS injectionmo ulde d, ho us ing a nd 1/4 VG A TFT.
O pus ThorAttractively-designed operator interface for arduous in-vehiclea pplica tions , with fully prog ramma ble g raphic com puter display a nd C ANbus
interfa ce . The hous ing is c a st a luminium, powd er coa ted.
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Graf-Syteco
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Graf-Syteco offers the industrys most complete range of CANbus enabled
operator panels, for general industrial, building management and mobile
vehicle a pplica tions . The prod ucts a re ava ila ble in a rang e of sizes a nd w ith
different levels of functiona lity to a llow the prec ise need s of the a pplica tion to
be met w ith the mo st c os t-effec tive s olution.
The units a re a lso a va ila ble w ith a dd itiona l built-in control func tiona lity a nd
with a dd itiona l on-bo a rd I/O to provide d irect c ontrol of externa l CANbus
nod es . Further, the units c a n be supp lied without the ope rator pane l toprovide c ompa ct, stand alone CAN node s.
The produc ts ca n be s upplied to me et dema nding environmenta l co nditions .
Front panels are protected to IP64, and the panels are suitable for use in
extreme temperatures from 20C to + 70C .
Graf-Syteco has also developed associated programming software which
provides the simplest mea ns o f setting up a sys tem. Easy to use, the
software guides even the novice programmer through application
development and operator-interface design. Graf-Syteco offerscomprehensive, free telephone support, and provides reg ular upda tes.
About G raf-SytecoGraf-Syteco has more than 20 years experience in the electronics industry
a nd m ore than 10 yea rs in mob ile a pplica tions . The c ompa nys products
are supplied all over the world to a variety of applications. Graf-Syteco is a
small-to-medium sized company that is family owned, run by Mr and Mrs
G raf. As s uch, the compa ny ca n service b oth sma ll orders a nd high
volume product runs, with the ability to tailor products to customer
requirements without large associated costs.
As well as developing high q uality hardwa re, G raf-S yteco ha s its ow n
in-hous e so ftwa re depa rtment. This no t only mean s tha t the sta nda rd
software programming package is of the highest standard, it also means
that the co mpa ny ca n d evelop custome r-spe cific ap plica tions and projects
both quickly and cost-effectively, in contrast to other companies which
have to out-source their software development or employ expensive
consultancies.
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AT8-Series The AT8-S eries is a very e fficient TFT co lour gra phics co ntrol unit,de signe d for rough environmenta l indus tria l and vehicle a pplica tions . The c ontrol unit
has eight freely prog ramma ble function keys a nd a digital input potentiometer for eas y
one-handed operation. A dual CAN port option allows the unit to communicate to the
eng ine a nd to other eq uipment on the s ystem s imultaneo usly without upse tting the
CANbus . The unit is a vaila ble for pane l mounting or a s a co mplete enc los ure.
AT3-Series The AT3-S eries is a n op era tor pa ne l with full g rap hica l disp laycapability on its LCD, accepting any standard graphical image formats such as JPEG
a nd Tiff. The unit ca n function a s a co mplete C ANbus co ntroller; the a dd ition o f inputa nd o utput sla ve modules ena ble you to build up a low cos t, simple C ANbus sys tem.
The unit is a vaila ble for pa nel mounting or as a c omplete en closure.
AT2-Series The AT2-S eries is a n op era tor pa nel with cha rac ter ca pa bility,a vaila ble a s a n LCD with LED-ba cklight o r VF displa y. It has bee n de veloped for use
in arduous environments such as vehicles, building machines and plant construction
eq uipme nt. The o pera tor pa nel ha s a CAN interfac e. The us er-interfac e is s implified by
the a dd ition o f an integrated digita l potentiome ter and it is pos sible to input
characters without an additional keyboard.
AT3-Series H M I and C AN C ontrollerThe AT3-S eries o pe rato r pane lis a lso a vaila ble w ith b uilt-in c ontrol function a nd direct I/O, a llow ing the unit to ta ke
direct c ontrol of any external nod es . The o utputs a re a ble to drive so lenoid valves,
proportional valves or relays directly.
C ontrol U nits w ith I/O The AT2-S eries a nd AT3-S eries op era tor pa ne ls a rea lso a vaila ble w ith built-in c ontrol function a nd direct I/O, b ut without the g rap hic
display, to form compa ct sta nda lone CAN nodes . The outputs a re ab le to d rive
solenoid valves, proportional valves or relays directly.
AT6 and AT7 Series Industrial Term inals Thes e o perator pa nelsprovide a lowe r cos t a lternative to P Cs for indus tria l applica tions . They a re de livered
in s everal stand a rd finishe s. A CAN interfa ce is p rovide d a s s tand a rd, with other bussys tems a vaila ble, plus RS 232 or RS422 seria l interfa ces .
J1939 com pliant configuration softw are All Gra f-S yte co AT-S eriesproducts are SAE J1939 compliant, and the company offers associated configuration
so ftwa re, ITE6E18. This simple to us e s oftwa re with fa milia r Windo ws interfac e a llows
generation and editing of user-specific graphics, text and pages.
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Sensor-Technik UK Ltd
Unit 10, The Granary
Mi ll Road, Sharnbrook
Bedfordshire MK44 1NN
Tel: 01234 782049
Fax: 01234 782056
sales@ sensor-technik.co.uk
www.sensor-technik.co.uk
The UKs CANbus sp ec ia l is t
Making the move to a bus-ba sed control sys tem is
a big s tep, b ut it need nt be a difficult one. Whether
you req uire fully-a pproved c ompo nents w ith a tra ck
record, o r comp lete s ystem de sign, S ens or-Tec hnik
has the answer. And well be with you every step of
the wa y.
CANbus p rovide s the idea l sys tem for integ rating
electronic c ontrols into vehicles a nd ma chinery,
particularly because its a system which is to ISO
standa rd a nd which is s upported by s o ma ny
different ma nufa cturers.
The S en sor-Tec hnik ES X con troller a nd its va ria nts
have been specified for use in vehicles and
ma chinery. This proven, relia ble s ystem ha s found
applications in engine management, 2- and 4-wheel
steering, drive-by-wire systems, anti-lock braking,
a nti-slip reg ula tion, a utoma tic g ea r shifting a nd
hydraulic control of mobile machinery.
S ens or-Tec hnik ca n a lso provide a ll the relevant
accessories, from operator interfaces to the
complete c ontrol system a nd interfac e pa ckag e.
Mos t importan tly, with S ens or-Tec hnik you c a n
spec ify s tanda rd, fully a pproved a nd tes ted
products which will save you having to obtain many
a pprovals yo urse lf.