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Fieldbus Components��

General Information

In factory automation, the 24 VDC inter-face is today considered the standard fornetworking sensors and actuators.Depending on the type of sensor, somehave 2 wires (supply voltage and switchingoutput in one such as 2-wire DC sensors),some have 3 wires (separate power supplyand switching output such as 3-wire pnpsensors), or even 4 wires (power supplyand output load/no load current such assome photoelectric sensors).

For added flexibility in manufacturing and toreduce down time, more and morefunctions have been built into the sensors:today’s photoelectric sensors can switchbetween light operate and dark operate,they can tell you when they are gettingdirty, and they have alarm messages for avariety of other conditions.

Obviously, all these functions require anadditional connection point at the sensorand at the signal processor, or PLC. Threeor four device connections can quicklygrow into 6 or more which leads to higherinstallation costs. This also increases bothequipment and maintenance costs. Thefact that the standardized M12 connectoroffers a maximum of 5 connection pointsmakes things even more complicated.

New ways had to be found to arrive atthe desired functionality and, at the sametime, eliminate traditional point-to-pointwiring.

AS-i – The Actuator - Sensor Interface

In 1990, eleven sensor, actuator andcontrol manufacturers formed the AS-iAssociation with the purpose to jointlydefine and develop an alternative wiringtechnology to replace the 24 VDC sensorand actuator interface. The goal of thisassociation was to create an interfacethat provides increased functions andeconomical advantages.

A purely mechanical interface (wire connec-tor) was developed simultaneously to theelectronic interface (network chipsets),which allowed the user to safely and costeffectively interconnect sensors andactuators in the field.

The Association asked Siemens to comeup with an electronic interface. Theydeveloped a special circuit (AS-i IC) thatcan be integrated directly into binary sen-sors and actuators and handles the powersupply of the sensors or actuators(< 30 mA) as well as data communication.Up to 4 data lines and 4 parameter linesare available to every single IC.

Siemens and Hirschmann together havedeveloped the mechanical interface forthe Consortium. All accessories requiredfor hardware configuration and networkingare suited for difficult industrial environ-ments and can be added and removedeasily. The AS-i cable simply snaps on,eliminating the need for cutting and termi-nal strips. This provides the user with costeffective standard I/O modules for the con-nection of 24 VDC sensors and actuators.

The AS-i System– gives sensors and actuators

networking intelligence– operates standard sensors/actuators

via I/O modules

System installation is simple and easy:it is done by laying the AS-i bus cable andmostly premoulded sensor/actuator quickdisconnect cables

Principle Of Operation And Topology

AS-i is a master-slave bus system. Itsupports up to 32 slave stations linkedto 1 master station. A slave station is astation with an integrated AS-i IC thatresides on the bus. Slaves are connectedto the master with an unshielded untwisted2-wire cable. This 2-wire cable is used forboth power supply and datacommunication.

Every 5 ms the master sequentially calls upthe connected slaves. 4 bit I/O data perslave are transmitted in each polling cycle.One master can, therefore, support up to248 input/output points when stan-dardinput and output modules are used. Thenumber of I/O points is reduced to aminimum of 31, when busable or intelligentsensors/actuators are connected.

Slaves can be logically connected any-where in the system. The network inter-connection is possible either in ring, bus ortree topology (see Fig. 1). It is importantthat the total cable length is not more than100 m.Power (2 A) to the bus and the connectedcomponents is supplied by the AS-i powersupply unit. That makes the system reliableand data communication secure.If additional power is required on a system,modules that provide supplementarypower via M12 socket outlets can beused. Another alternative for auxiliarypower is the use of the second contactpoint on the standard AS-i modules (seepage 9).

The AS-Interface® To PLCs

Master stations have been designed withthe goal of providing easy interface toprogrammable controllers. The PLChandles the I/O data from the master thesame way it would handle I/O data from astandard I/O board. No special softwareprogramming is required for the transferof the I/O data to the application software.

Master stations with direct access tothe bus structure of various PLCs areavailable and other interface cards arecurrently being developed. Access toPCs is also available by masters withRS232 C, RS485 serial interfaces aswell as direct PC interface cards.

Applications

AS-i lets the user carry out the applicationas before, without any software changes,using standard modular junction boxes orstation enclosures as remote I/Os. Thisapproach provides the user with all theadvantages a bus system has to offer:

– drastically reduced wiring– open system– easy error diagnostics– faster installation– easier maintenance

AS-Interface® – System Overview

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Fig.1 Basic components for configuration of an AS-i system

In general, there are two types of inductivesensors: flush and non-flush mountableversions. Today’s new sensing techno-logies combined with miniaturization makeit now possible for non-flush mountablesensors to learn about their mountingenvironment through an incorporated„teach“ function. This teach function en-ables the sensor to work properly evenunder conditions that would normallygenerate a false activation.

AS-i provides the possibility to extend theteach function to several sensors at thesame time after they have been connectedto a single 2-wire cable. To use this func-tion, the user must integrate it into therespective application software.

AS-Interface® System – Basic Compo-nents

The following components are necessaryfor an AS-i test system or for anapplication:

– AS-i masteravailable for Siemens S5 PLC,Interbus S, PCs, RS232C, RS485

– AS-i power supply unitworks with 31.6 VDC AS-i voltage

– AS-i programming deviceused for programming and diagnosticsof slave stations

– AS-i stationsactive: with embedded AS-i ICfor the connection of standard 24 VDCsensors and actuatorspassive: without AS-i ICfor the connection of sensors andactuators with embedded AS-i IC

– AS-i sensors/actuatorswith embedded AS-i IC and additionalfunctions

– AS-i cablefor use with the AS-i specific interface

First, cost reductions will primarily be per-ceived by the industrial equipment manu-facturer. End users will have to make somefundamental changes in their way ofthinking to take full advantage of intelligentprocess sensing using multifunctionalsensors and actuators.

Fault Diagnosis

In conventional systems, fault or errordiagnosis on the software level of the PLCis done via standardized sequential pro-gramming. Here, the operation/controlsoftware monitors and controls the pro-cess with event/time sequential program-ming. If a process signal is missing, theproduction is halted. This is an easy way tofind the location of the fault but it requires aconsiderable amount of programming.Also, fault diagnosis is only possible oncethe fault has already happened.

A modern approach using sensors withembedded AS-i IC can signal in advanceif a sensor may fail. This is done withoutincreasing the amount of wire needed. Infact, this allows a reaction before the actualfault happens, for instance when theinductive sensor signals that thetarget has moved over time away fromthe safe sensing range, or that the sensoris predamped by metal dust or shavings.In fact, interruptions in the productionprocess can thus be avoided which willcut production costs while increasingoverall reliability and performance.

Operation

In addition to fault diagnosis, sensors withbuilt-in intelligence open up new possibili-ties in production and can substantiallyreduce the number of components: forinstance, inductive sensors that allow avariety of different sensing ranges or thatcan sense different metals without theneed to exchange the sensor or the wiring.These adjustments during the productionprocess can be made by bus communi-cation. The same applies to photoelectricsensors.

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(2) No slave with the address „0“ can beconnected to the system, only wheninitially supplied as a replacement fora failed unit.

(3) The maximum cable length may notexceed 100 m.

(4) The maximum current consumption ofthe system is limited to 2 A.

Troubleshooting

Normally, the master recognizes andsignals a fault if it occurs during normaloperation, for instance, when a slave fails(sensor, actuator or module), or has aproblem. The host controller can thenevaluate this information.

To facilitate troubleshooting, some mastersprovide automatic programming functions.When this function is activated, a slave thathas a problem or is destroyed can auto-matically be replaced by a new one havingthe address „0“ without having to repro-gram the new slave with a programmingdevice or similar.

Once the master recognizes that a slavehas failed (by comparison with the storedsetup configuration of the system; nocheck back from the slave), and if theinformation appears to be correct, thenthe master instantly allocates the addressof the destroyed slave to the new slave viabus communication.

Special Characteristics

Some masters (RS232/RS485) have thecapability to operate with standard 24VDC. They incorporate the necessarydecoupling circuitry for the AS-i network.However, it should be noted that thereare cases where 24 VDC is not availableeverywhere in the AS-i system.

A voltage drop on the bus line and over theIC (approx. 8 V) must also be considered.If a system requires less than24 VDC in some areas, AS-i is even morecost efficient.

The AS-i system not only greatly reducescosts when compared to standard parallelwiring, it also offers the possibility to checkthe installation during its operation and atevery restart.

To do that, the Master polls the slaves andcompares the actual configuration data(AS-i system configuration) with the storedsetup configuration. The user can transferthe setup configuration in the master, (forexample, by downloading an existing con-figuration), and the data will automaticallybe updated with information about the busconfiguration (addresses used) as well asassigned slave address and type.

According to the particular function of theslave, each one is assigned to a specificprofile. The profiles define and identify thefunctionality of the slaves but not their phy-sical attributes; for instance, all blocks ofsimple I/O modules with embedded AS-i ICare allocated in profile X.0 (X = 0...15),X indicating that the input/output configu-ration is different.

Device information such as module size,current load, etc. is not determined. Thisinformation is stored in non volatile me-mory by the manufacturer and read by themaster. This is done to avoid for instancethat an input module is used as an outputmodule or as a sensor by mistake.

The fault detection capability offered byAS-i when a slave is not operating pro-perly, is an added measure of protectionbecause early detection and identificationof problems means that corrective actions(see troubleshooting) can be taken beforethey lead to a break-down. This reducesdowntime, and im-proves systemperformance and pro-ductivity.

System Start-Up

The start-up of an AS-i system is verysimple and easy, provided some of theessential AS-i characteristics are observed.

(1) AS-i is a master-slave bus system;therefore, an address must be assig-ned to each station before it is integra-ted into the AS-i network. No stationcan have the same address twice.Addressing can be done with aPC master or a programming device.

AS-Interface® – Master Stations

Each AS-i master station consists of twocomponents:

– AS-i master for polling of the slavestations; this part is identical foreach master with the same profile.

– PLC specific interface, or standardserial interface

Normally, no additional software is requiredfor a PLC master. The AS-i modules areused in the same way as standard I/Ocards. For master stations with RS232 Cor RS485 serial interface,a special software in the PC or PLC isneeded for carrying out all functions andcommands.

The Master Functions (AS-i Profile)

Depending on the application, AS-i masterstations can have one of the following threeperformance levels (profiles):

– M0 Mini-master:Only for I/O data exchange andconfiguration storage

– M1 Full master:Provides full scale AS-i functions

– M2 Reduced master:Full data I/O and minimumparameter programmingfunctions

A careful analysis and evaluation of theapplication relative to the system is veryimportant when choosing a master. Forexample, if programmable sensors/actuators are required in the application, amaster with an M0 profile will not be able tohandle it. Therefore, a master that conformsto the M2 profile will offer the best solution.

On the other hand, if no programming isnecessary during routine operations, thenthe necessary adjustments can also bemade with the programming device. Inthat case, a master according to profileM0, which is used to replace traditionalparallel wiring, is also appropriate.

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PLC/Bus typeType of interface

Maximum number of HS 1) each PLCMaximum number of ES 1) each HSMaximum number AS 1) each HSMaximum number ES/AS 1) each HSMaximum number I/O each PLC

Cycle time each ES/AS 1)

HousingDimensions W x H x D [mm]

Housing materialDegree of protection (IEC 60529/EN 60529)Operating temperature

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Profile

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AS-Interface® – Stations

Fig. 2 AS-i interconnect system – input-/output module, junctions and cordsets

Basically, two groups of stations can bedifferentiated for the AS-i bus: The firstgroup contains the active stations, thesecond group the passive junctions.

The group with the active stations con-sists of all input and output modules withthe embedded AS-i chip, and providestherefore a higher level of functionality.These modules are the interface betweenthe AS-i system and the connectedsensors and actuators.

Passive junctions are used for the net-working of sensors with the built-in AS-ichip, as bus junctions, or for conversionfrom the AS-i flat cabling system tostandard round cabling. These modulesare designed to help make wiring, as wellas adding and removing devices simple.

Junctions and stations with AS-i specificinsulation penetration technology incor-porate a base module for connectionof the AS-i specific flat cable and a usermodule with the I/O interface. All modulesare designed for connection of both AS-icables in insulation penetration technology,when the user and the base module aremounted together (additional informationon base modules on page 30/31).

AS-i Standard Module (see fig. 3)

Standard user module (upper section):

– active station: for the connection ofstandard 24 VDC sensors andactuators

– passive junction: for the connection ofsensors and actuators with embeddedAS-i IC

Base module (lower section):

with AS-i specific insulation penetrationtechnology providing terminal stripconnections for AS-i flat cables.

Fig. 3 AS-i standard user module (upper section) und base module (lower section)

Standard usermodule

Base module

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Mechanical Characteristics

All stations give excellent environmentalprotection, meeting IP67 requirements;they are protected against electric shockand are dust and dirt tight. The stationspass EN 60529 standards for 30 minuteimmersion in water at 1 meter.The operating temperature lies between-25 and +70 °C.

There are basically two different modulesavailable. The AS-i standard modules(see page 8) have a simple constructionand are the inexpensive alternative foruncomplicated applications.

All connection components, such as theconnector threads are made of plastic andshould not be used in combination withmetal connectors (the threads can then beeasily damaged). These modules are notpotted, so that when they are exposed torapid temperature changes and high humi-dity, they require extra protection againstpenetration of moisture (absorption effect).

In contrast to this, the TURCK modules(see page 10) are far more complex andprovide a variety of features:

– full potting– metal connectors– connection of flat and round cables

These design features prevent penetrationof moisture, even under conditions wheretemperatures change rapidly, and avoiddisconnection difficulties due to damagedthreads. As it is possible to connect flatcables as well as round cables via thestandardised M12 connector systemeurofast® , it is easy to switch from onetechnology to the other. Bus cabling isfacilitated significantly; and for specialapplication requirements there are a va-riety of cable qualities available (e.g. hightemperature resistant cables for weldingapplications, highly flexible cables for appli-cations where they are subject to frequentmovement). The standard M12 connectorsare also of great help as an isolating pointin error identification.

Active StationsElectrical Characteristics

Power to the active modules on the systemis supplied through the bus vol-tage. Theavailable voltage ranges from 29.5 to 31.5V when measured directly behind the AS-ipower supply unit, but can drop by 3 V atthe end of a 100 m long AS-i flat cable.

Some modules also supply connectedfield devices such as sensors directlythrough the system supply voltage ordirectly through the AS-i chip. The inter-nal voltage drop in the AS-i chip is 6 V,so there is a 25.6...20.5 V sensor/actuatorvoltage range available to the connectedfield devices. The maximum current thatcan flow through the AS-i chip is 30 mA.

In order to reduce the strain on the AS-iline, many modules enable use of the se-cond AS-i connection point for additionalpower supply. The AS-i standard stipulatesuse of a black cable to avoid interchangeerrors with the yellow bus cable (for appli-cations with 230 VAC the use of a redcable is mandatory). The TURCK modulesprovide connection of the additional powersupply via M12 eurofast® connectors. Allstations are designed in such a way thatpolarity reversal or a short-circuit will inter-rupt the bus communication for a shorttime only. Replacements can be madeeven while the system is operating.

Please note: An indication of a faultysensor/actuator or of a cable wire-breakis not available with the 4-channel inputand the 4-channel input/output modules,because there are no data areas availablefor this on the bus. With some of the2-channel modules and the pure outputmodules, some of the bits, which are notused for I/O data, are used for diagnosispurposes (see resp. operation manuals).With most modules, a short-circuit indi-cation from the field (sensor/actuator orsupply line) is received by means of with-drawal of one of the modules from the listof the active stations (evaluation dependson master type).

Passive Stations/Junctions

Features

Passive stations are available in a variety ofdesigns, e.g. based on the standard AS-imodule, featuring 1...4 channels andconsisting of the user and the base mo-dule, or a small clip module which enablesconnection of a single sensor/actuatorwith integrated chip (basically, this clipdevice serves for converting the specificAS-i connection technique to M12 connec-tions).

AS-i Printed Circuit Boards

For customer-specific applications or forintegration of your device, such as drivesor power clamps, TURCK offers AS-iprinted circuit boards with differentconfigurations.

Addressing

Addressing of the stations is carried outby the AS-i handheld or a PC with theappropriate software and the AS-i inter-face. Addressing must always be accom-plished before the initial system start-up.Please observe that one address mayonly be present once within the entiresystem.

Attention: The address 0 may not beused.

Diagnosis Functions

All stations are equipped with LEDs forstatus and bus supply voltage indications.Communication with the bus master is notindicated. The AS-i handheld serves forsystem diagnosis. Some master typesprovide the complete range of diagnosisindications. The user is responsible for theevaluation level.

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Active Input Stations

Input stations are used to receive binaryprocess signals from hardwired fielddevices. The input data are scanned bythe master station in a cyclic manner.To assure that the system operatesproperly, each station must be assigneda specific address.

A variety of standard pnp sensors can beconnected to the inputs. For all of themapplies the same:

– power supply through the bus cable– total current draw ≤ 150 mA– operating voltage 10...30 VDC

Devices that can be connected to theactive input stations are:

– 3-wire pnp sensors– 2-wire sensors– potential-free contacts

The connections are made with eurofast®connectors. When using sensors withincreased current consumption suchas some photoelectric sensors or flowcontrols, the max. load supply must bestrictly observed. Too high current drawsmay impair the system function.

Alongside the modules featuring protec-tion type IP67, there are also screw ter-minal versions with protection type IP20available. These are suitable for cabinetmounting.

The „pneumatic“ module serves a veryspecific purpose as it incorporatesmagnetic valves for direct control ofdrives or cylinders.

AS-i printed circuit boards for integra-tion of your devices are adapted to thespecific application. No matter if the num-ber of I/O points, the kind of I/Os, or themechanical designs are concerned, yourwishes can be put into practice. Just askus.

Attention: With some of the modules,the connectors 2 and 4 are bridged (seeoperation instructions). This enablesconnection of normally open and normallyclosed sensors, but the use of comple-mentary sensors is not permitted.


Fig. 4 TURCK AS-i input/output module

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Description

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Input DataSensor voltageTotal sensor currentSwitching frequencyChannelsShort-circuit protectionGalvanic isolation

Output DataOutput voltageOutput current/each channelSwitching frequencyChannelsShort-circuit protectionGalvanic isolation

AS-I SpecificationsAS-i ProfileData bit 0 connector/active pinData bit 1 connector/active pinData bit 2 connector/active pinData bit 3 connector/active pin

Safety MeasuresReverse polarity protectionShort-circuit protection

Mechanical CharacteristicsHousing materialDimensions W x H x D [ mm]Degree of protection (IEC 60529/EN 60529)Temperature rangeMountingBus connectionConnection to sensors/actuatorsExternal power supply

Module type

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Description

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14 /0201


Active Output Stations

Output stations transmit binary processsingals to the connected actuators. Thedata received from the master station arestored in the output station and trans-ferred to the switching outputs.

Each output station provides an additionalconnector for the required power. During apower failure, or when a break in the buscable occurs, all outputs are securely shutdown (0).

Various actuators can be connected to theoutput:

– valves– relays– annunciators

All of them must have the followingattributes:

– supply voltage: 24 VDC– current per output: 1 A


Fig. 6 TURCK AS-i output module

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15 /0201

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● Active Output Stations4 channels

Description

Supply voltage per AS-i specification

No load current/total current



AS-i SpecificationsAS-i ProfileData bit 0 connector/active pinData bit 1 connector/active pinData bit 2 connector/active pinData bit 3 connector/active pin


Mechanical CharacteristicsHousing materialDimensions W x H x D [ mm]Degree of protection (IEC 60529/EN 60529)Temperature rangeMountingBus connection

Connection to sensors/actuatorsExternal power supply

Module type

Diagnosis– Status indication– AS-i voltage

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to AS-I specificationor eurofast®

TURCK module

4 LEDs2 LEDs

16 /0201


Fig. 7 Inductive sensors with integrated AS-i chip

AS-Interface® – Inductive Sensors

● Integrated AS-Interface®

● uprox® all metal sensorswithout correction factor

● 5… 75 mm switching distancefor all metals

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Like all inductive proximity switches,uprox® sensors are non-contact, wear-freesensors designed to detect metaltargets. In addition, due to their special fer-rite-less 3-coil construction, theyincorporate features which provide themwith significant advantages for a widerange of applications compared toconventional sensors:

Factor 1uprox® sensors detect all metals withthe same reduction factor, i.e. the sensingrange is the same for all metals.

Standard Magnetic Field ImmunityAs there ist no ferrite core, uprox® sensorsare not affected by strong electromagneticAC or DC fields.

Extended Sensing RangeThe sensing range of most of the uprox®

sensors with a target made of mild steel isconsiderably greater than that of equiva-lent conventional inductive sensors andcan be up to 100 % more, depending onthe sensor used. The difference is evengreater for non-ferrous target materials.

What’s a uprox® ?Extended Temperature Rangeuprox® sensors have an operating tem-perature range of -30… +85 °C.The temperature drift per DIN EN 50008is maximal ±10 % in the range from-25...+70 °C. In the standard temperaturerange from -30… +85 °C, the temperaturedrift is up to ±15 %.

High Switching Frequencyuprox® sensors contain special sensorcoils, giving them a switching frequencysignificantly faster than that of conventionalinductive proximity sensors.

Fe

CuZn

Large switching distance Magnetic field immune

17 /0201

uprox® Sensors With EmbeddedAS-i Chip

uprox sensors with incorporated net-working capability through the AS-i chipconnect to the AS-i bus via a passivejunction box (such as ASI-PM21-VB1).These sensors use an embedded AS-i ICto communicate with the PLC.

Protection Arrangements

uprox® sensors are protected not onlyagainst submersion in water (IP67),but also against extreme environmentalconditions, e.g. temperature cycling(common in the food industry). In addi-tion to this, uprox® sensors correspondto protection class 2 (as indicated by thesymbol for insulation class equipment).

Housing MaterialIn addition to the chrome plated brassbarrel, the threaded barrel uprox® isavailable in two further versions:

The stainless steel threaded barrel isespecially resistant against chemicalreaction, e.g. cleaning processes in thefood industry. A welding proof versionwith teflon coating is also available. Thisoffers protection against sparks flyingand weld splatter as experienced in carbody welding in automotive plants.

One Sensor – Many Applications

Due to the many inherent extra features,uprox® sensors offer considerable advan-tages, particularly for applications thatpreviously required special purpose sen-sors. Higher performance at no extra cost:

● for general applications:(eg. rotational speed monitoring):chrome plated brass housing

● for applications in the materialhandling and conveyor industry:CK40, CP40, CP80 plastic housing

● for applications in the food andbeverage industry:stainless steel barrel housing

● for welding operations:teflon-coated brass barrel housingand/or teflon-coated cap

18 /0201


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Wiring diagram

Dimensions

Sensing Distance sn [mm]Flush mounting (f), non-flush (nf)

Supply voltage UB [V]No-load current [mA]

AS-I ProfileData bit 0Data bit 1Data bit 2Data bit 3

Switching frequency [Hz]Switching hysteresis [%]Temperature drift [%]Repeat accuracy [%]Material housingMaterial active faceMaterial end capDegree of protection (IEC 60529/EN 60529)Insulation class (EN 60947-5-2 Annex B)

Operation temperature [° C]Fixing torque [Nm]Cable/clamping ability/connector [mm]

Output indicationPower on indication

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1) A fully configured bus system will reduce the switching frequency accordingly.

AS-Interface® – Inductive Sensors

● Cylindrical metal housingM 18 x 1, M 30 x 1,5

● Rectangular plastic housing40 x 40, 80 x 80

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20 /0201


Light And Dark Operating ModeA light operating sensor is a photoelectricsensor that produces a switching signalwhen the receiver senses sufficient light.Dark operating sensors are those thatproduce a switching signal when no lightis received.

Alarm OutputPhotoelectric sensors perform properlyonly when they detect enough light.Objects are no longer reliably sensed whenlight is lost because of material build-up onthe lenses or the reflector, a commonproblem when installed in a dirty location.The alarm output in photo-electric sensorsalerts the user before the sensor fails thatthe light beam is obscured orcontaminated.

Photoelectric Sensors With EmbeddedAS-i Chip

EASY-BEAM FamilyEach sensor is available in three differenthousing styles:– S Pack: straight threaded barrel

housings– T Pack: short barrel sensors– Q Pack: rectangular housings

Fig.8 Photoelectric and ultrasonic sensors with integrated AS-interface

Operating Principle

A photoelectric sensor is a device whichdetects a visible or invisible beam of light.The sensor emits light pulses that aredetected either by the same sensor orby a separate light receiver. A switchingsignal is generated by the amount of lightreceived, depending on the sensing mode.

Sensing Modes

Opposed Mode Sensorsconsist of an emitter and receiver in twoseparate housings. An object is detectedwhen it interrupts the light beam betweenthe transmitter and the receiver.

Retroreflective Sensorscontain both the emitter and receiver inone housing. The emitter sends out a lightbeam which is reflected by the reflectorand picked up by the receiver. An object isdetected when it interrupts this light beam.

Diffuse Mode Sensorscombine both emitter and receiver in onehousing. Light emitted by the sensor isreflected by the target and sensed by thereceiver.

Diffuse Mode Sensors With BackgroundSuppressionoperate according to the same principleas diffuse mode sensors but they alsoeliminate the influence of backgroundobjects, even if the objects are veryreflective.

Fiberoptic Sensorsuse glass or plastic fibres to conduct thesensing light close to the target.

AS-Interface® – Photoelectric Sensors

● Integrated AS-i chip

● All operating modes

● EASY-BEAM sensors withalarm output via AS-i bus

● Family Q45 with alarm output,light-/dark operate selection,change of modulation frequencyetc. via AS-i bus

All sensors are equipped with a 30 mmthread for mounting.

EASY-BEAM photoelectric sensors usetheir bus capability to transmit whetherthey are on or off, or to send an alarmsignal to indicate that the existing ope-rating parameters have made the sensorunreliable.

With EASY-BEAM sensors, the selectionbetween light or dark operate is also donevia bus communication by the parameterbit.

Q45 SensorsThese devices use three data bits andparameter bits for the communication withthe PLC. The data bits transmit the swit-ching status, warn for too low excess gainor perform a sensor test.

With the help of the parameter bits one canchoose between light- and dark operate,change the output to a one shot output orprevent mutual interference of two sensorsby changing the modulation frequency.

21 /0201

100

10

10,1 1 10 100 m

FF400

FF200

1000

100

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11 10 100 1000 mm

Excess Gain Curves

Curve 1: S30/T30/Q40-X21-LP-Q Curve 2: S30/T30/Q40-FF… Curve 3: Q45XAS1-L...-Q

Curve 4: Q45-XAS1-D...-Q Curve 5: Q45-XAS1-CV...-Q Curve 6: Q45-XAS1-E/R-Q

Curve 7: Q45-XAS1-F...-Q

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22 /0201



S30

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T30

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Wiring diagram

Dimensions

● Family EASY-BEAM,types S30, T30, Q40with eurofast® connectors

Max. sensing range [m]Excess gain curve

Sensing modeConnectionLight sourceWave lengh [nm]

AdjustmentsSensitivityLight-/dark operate

Supply voltage UB [VDC]No-load current [mA]

AS-i ProfileData bit 0Data bit 1

Switching frequency [Hz]

Material housingMaterial lensMaterial end cap/terminal chamberDegree of protection (IEC 60529/EN 60529)Operating temperature [° C]Cable /clamping ability [mm]

Switching status indicationPower on indicationWarning (low excess gain)

6page 21, curve 1

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24 /0201



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Connection

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AS-i ProfileData bit 0Data bit 1Data bit 3Parameter bit 0Parameter bit 1Parameter bit 2

Switching frequency [Hz]

Material housingMaterial lensMaterial end cap/terminal chamberDegree of protection (IEC 60529/EN 60529)Operating temperature [° C]

Switching status indicationIndication light sensed

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26 /0201


AS-Interface® – Ultrasonic Sensors

● Integrated AS-Interface®

● 0.3… 6 m sensing range

● Three individually adjustablesensing ranges

● Alarm indication via bus in case ofsensor failure

● Many programmable parameters

Operating Principle

Ultrasonic sensors use sound waves todetect the presence of an object: thesensor emits an ultrasonic pulse whichreflects back from any object. From thetime it takes for this echo to return, thesensor determines the distance to theobject.

Sensing Ranges

With ultrasonic sensors, distinct rangescan be set within which an objectgenerates a switching signal. Objectsoutside these ranges may be detectedbut do not switch the output.

Ultrasonic Sensors With IntegratedAS-Interface®

Ultrasonic sensors incorporating an AS-ichip have three sensing ranges. It ispossible to program and adjust thesesensing ranges with the ASI-PD01programming device.

Data bit 0...2 indicate whether an objecthas entered one of the sensing ranges.Data bit 3 is utilized whenever the sensor isnot working properly.

Programming

With the ASI-PD01programming device,the following parameter adjustments canbe made:

– end value of the three sensing ranges– average value forming– switching hysteresis

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Wiring diagram

Dimensions

Sensing range [cm]Blind zone [cm]Standard target [cm² ]

AdjustmentsNumber of sensing ranges

Supply voltage UB [VDC]No-load current [mA]

AS-i profileData bit 0Data bit 1Data bit 2Data bit 3Parameter bits 0...3

Switching frequency [Hz]Switching hysteresis (programmable) [cm]Repeatability [mm]Temperature drift

Material housingMaterial sensing faceMaterial end capDegree of protection (IEC 60529/EN 60529)Operation temperature [° C]Torque [Nm]Cable/clamping abilitySwitching status indication LED

6...30 20… 1306 20

1 x 1 2 x 2

see page 263

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AS-Interface® – Accessories

Address Programming And ServiceDevices

For maintenance and system set-up, theAS-i programming device is required tocarry out the initial station addressing. Allactive stations (slaves) must have an AS-iaddress (1...31) assigned before they canbe installed. (Exception: If a station is beingreplaced by a new one having the address„0“, it is automatically allocated to theaddress of the destroyed station. In thiscase, the address allocation is carried outby the master).

Programming devices are available in twodifferent versions to meet a wide variety ofapplication requirements:

ASI-PD 02This addressing device is used to enter themodule specific address into the station. Itprovides only essential functions such as:

– read AS-i slave address– write AS-i slave address– AS-i specific function check

ASI-PD 01This device serves for station addressing,but it is also used for the followingfunctions:

– monitoring– parameter programming– system diagnosis– maintenance

Addressing And Parameter Program-ming Via PC

A special software is available for somemaster stations (e. g. ASI-MM232)allowing address changes and parameterprogramming of AS-i substations via aPC. In that case the programming deviceis not required.

Power Supply Units

AS-i prescribes the use of a power supplywith a built-in AS-i low pass filter to elimi-nate operation errors in the network. TheAS-i power supply unit ASI- PS can pro-vide a fully configured AS-i trunk withpower. Use only ASI-PS from TURCK.Use of other power supplies can result inunreliable operation.

Cordsets And Interconnect Products

In case connections between the I/Ostations and the AS-i cable are carried outin insulation penetration technology, thetrapezoidal coded AS-i cable (see fig. 8)must be used to ensure correct polarityconnections, proper seals, etc.

To meet the various application require-ments, TURCK offers several cablequalities, e.g. the yellow AS-i cable witha rubber cable jacket has self-healing pro-perties to seal cable perforations whichinevitably occur with insulation penetration,but it is not especially resistant againstenvironmental influences. The Polyurethanecable is uniquely resistant to chemicals andabrasion, but it does not have the self-healing characteristic.

The cable colour coding is also important:– yellow: AS-i bus cable– black: AS-i supply cable 24 VDC– red: AS-i supply cable 230 VAC

Alongside the AS-i standard modules,there are modules with eurofast optionsavailable. These are utilized where flatcables are not recommended, or if screwterminals are too cumbersome (seesection „Stations“ ).

For simple and low cost connectionsbetween the stations, field devices andcontrollers, TURCK has a broad selectionof interconnection products, includingjunctions and moulded bus tees, as well assimple cordsets.

TURCK also has a wide variety of standardM12 screw connectors in addition to thelarger bus cables and connectors.

Pre-assembled Cables In DifferentLengths, Materials And Versions

● Moulded cordsets for sensors:– straight female/straight male

connector;– straight female/right-angle male

connector;– right angle male/straight male

connector;– right angle female/right angle male

connector

● Moulded cordsets for actuators:– valve plug with straight connector– valve plug with right angle connector

Fig. 8 Standard AS-i flat cable

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29 /0201

● Address Programming andService Devices

● AS-i Power Supply

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01

Description

Function indicators/diagnostics

Keyboard

Interface

Power supply

Battery chargerCharging timeOperating time

Output currentOutput voltage

HousingDimensions W x H x D [mm]Housing materialDegree of protection (IEC 60529/EN 60529)Operating temperatureWeight

Cross section

68 2

12 0

1

AS

I-P

D 0

1

Programmingdevice

LCD

sealed, 4 keys

AS-i

accumulator

230 VAC1)14 h8 h

––

–80 x 209 x 30

–IP20

0… +50 °C550 g

–

Programming- andservice device

LCD

sealed, 45 keys

AS-i

accumulator/batteryoptional

–4 h

––

–211 x 100 x 26

–IP20

0… +50 °C700 g

–

AS-i power supply

LEDs

–

–

115/230 VAC

–––

3 A30 VDC


CrastinIP20

-25… +80 °C–

–

1) comes with device

AS

I-P

S-1

1-00

0168

215

02

AS-i power supply

LEDs

–

–

195...253 VAC

–––

2.4 A30 VDC


CrastinIP20

-10… +55 °C–

–A

SI-

PS

-11-

0002

68 2

17 0

3

AS-i power supply

LEDs

–

–

187...264 VAC

–––

7 A30 VDC


CrastinIP20

-10… +55 °C–

–

30 /0201


● Base module● AS-i flat cable● Tee piece● Mounting plate● Cover

Description

Function indicators/diagnostics

Keyboard

Interface

Power supply

Battery chargerCharging timeOperating time

Output currentOutput voltage

HousingDimensions W x H x D [ mm]Housing materialDegree of protection (IEC 60529/EN 60529)Operating temperatureWeight

Cross section

AS

I-C

68 2

16 0

3AS-i

flat cable

–

–

–

–

–––

––

––

TPE–

-25… +70 °C–

1.5 mm²

yellow

brown/blue

AS

I-C

B68

216

05

AS-iflat cable

–

–

–

–

–––

––

––

TPE–

-25… +70 °C–

1.5 mm²

black

brown/blue

AS

I-C

R-1

00M

68 2

17 0

2

AS-iflat cable

–

–

–

–

–––

––

––

TPE–

-25… +70 °C–

1.5 mm²

red

brown/blue

AS

I-C

GG

-100

M68

217

00

AS-iflat cable

–

–

–

–

–––

––

––

rubber–

-25… +70 °C–

1.5 mm²

yellow

brown/blue

AS

I-C

PG

-100

M68

217

01

AS-iflat cable

–

–

–

–

–––

––

––

Polyurethane–

-25… +70 °C–

1.5 mm²

yellow

brown/blue

AS-Interface® – Accessories

Cable colour

Conductor colour

31 /0201

AS

I-B

M 1

1 P

G68

216

02

Pg

scre

w c

onne

ctio

n

AS

I-B

M 2

168

216

01

insu

latio

n pe

netr

atio

n

AS

I-B

M-1

000

– insu

latio

n pe

netr

atio

n

FKM

4.22

-2FS

M4.

2266

025

74

AS

I-B

M-0

001

68 2

16 0

6

AS

I-B

M-0

002

68 2

16 0

7

AS

I-B

MD

68 2

16 0

4

base module

–

–

AS-i cable

–

–––

––

modular––

IP67-25… +75 °C

–

–

–

–

base module

–

–

AS-i cable

–

–––

––

modular––

IP67-25… +75 °C

–

–

–

–

base module

–

–

AS-i cable

–

–––

––

modular––

IP67-25… +75 °C

–

–

–

–

tee piece

–

–

round cable M12

–

–––

––

modular––

IP67-25… +75 °C

–

–

–

–

mounting plate forcompact module

–

–

–

–

–––

––

modular––

IP67-25… +75 °C

–

–

–

–

base module forEEMS

–

–

AS-i cable

–

–––

––

modular––

IP67-25… +75 °C

–

–

–

–

cover for basemodule

–

–

–

–

–––

––

modular––

IP67-25… +75 °C

–

–

–

–

32 /0201


Register of components

A PageASI-BM-0001 31ASI-BM-0002 31ASI-BM 11 PG 31ASI-BM 21 31ASI-BM 1000 31ASI-BMD 31ASI-C 30ASI-CB 30ASI-CGG 30ASI-CPG 30ASI-CR 30ASI-CP 2430 5ASI-CP 2433 5ASi-DPG-0001 5ASI-DEV-0001 6ASI-GATEWAY 5ASI-IM 41 11ASI-IM 4-1000 11ASI-IOM 22-1000 13ASI-IOM 22-0003 13ASI-IOM 221 12ASI-IOM 44-1000 12ASI-IOM 44-1001 13ASI-IOM 441-0001 12ASI-IOM 441-0002 12ASI-MM 232 6ASI-MM 232/C 7ASI-MM 485 6ASI-MM 485/C 7ASI-MOD-0001 6ASI-MOD-0001/C 7ASI-OM 4-1000 15ASI-OM 41 15ASI-PD 01 29ASI-PD 02 29ASI-PM 11 13ASI-PM 41 13ASI-PS 29ASI-PS-11-0001 29ASI-PS-11-0002 29ASI-T 30

B PageBi5U-M18-ASIX-H1140 18Bi10U-M30-ASIX-H1140 18Bi15U-CK40-ASIX2-H1140 19Bi15U-CP40-ASIX2 19

F PageFKM4.22-2FSM4.22 31

33 /0201

Register of components

N PageNi12U-M18-ASIX-H1140 18Ni20U-M30-ASIX-H1140 18Ni25U-CK40-ASIX2-H1140 19Ni75U-CP80-ASIX2 19

Q PageQ40-X21-FF200-Q 22Q40-X21-FF400-Q 23Q40-X21-LP-Q 22Q45-XAS1-CV-Q 25Q45-XAS1-CV4-Q 25Q45-XAS1-D-Q 24Q45-XAS1-DL-Q 24Q45-XAS1-E-Q 25Q45-XAS1-F-Q 25Q45-XAS1-FP-Q 25Q45-XAS1-LP-Q 24Q45-XAS1-LV-Q 24Q45-XAS1-R-Q 25

R PageRU30-M30-ASIX3-H1140 27RU130-M30-ASIX3-H1140 27RU300-M3047-ASIX3-H1140 27RU600-M3065-ASIX3-H1140 27

S PageS30-X21-FF200-Q 22S30-X21-FF400-Q 23S30-X21-LP-Q 22

T PageT30-X21-FF200-Q 22T30-X21-FF400-Q 23T30-X21-LP-Q 22

34 /0201


35 /0201

Subject to change without notice

*D300030ßß0201*

D300030 0201

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