DEVICENET Coupler BK5200 Technical Documentation Version D-3

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DEVICENET Coupler BK5200 Technical Documentation Version D-3

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BECKHOFF
DEVICENET Coupler BK5200
Technical Documentation Version
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Contents
Contents
Basic information
Beckhoff terminal system interfaces
Power supply Power supply power contacts Power contacts Fieldbus connection Configuration interface K-bus contacts Supply isolation
operating modes coupler Mechanical construction peripheral data process image Starting operation diagnostics
BK52x0 DeviceNet
Introducing system Configuring coupler Pin-out Exchanging data Light-emitting diodes Vendor DeviceNet Group Maximum cable length Potential isolation Sample arrangement process image coupler Representation analog signals process image
BK5200
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BK5200
Basic information
Basic information
Beckhoff terminal system
terminals each with channels form signal terminal system universal connecting link between fieldbus system sensor/actor level. unit consists coupler, which interface fieldbus, electronic terminals, which last terminal. Terminals, each with channels, available form technical signal combined desired. various types terminal constructed same way, that planning costs kept extremely low. height depth construction calculated compact terminal cabinets. Fieldbus technology makes possible compact control architectures. level does need taken right control unit. Sensors actors connected decentrally with minimal lengths cable. position control unit convenient location installation. Using industrial control unit makes possible implement operating monitoring element part control hardware, control unit located operating desk, control point similar. terminals constitute decentralized input/output level control unit switch cabinet subordinate terminal cabinets. well sensor/actor level, power unit equipment also controlled system. terminal replaces conventional terminal cabling level switch cabinet; switch cabinet made smaller. Beckhoff terminal system combines advantages system with functionality compact terminals. terminals used current systems serve reduce diversity parts control unit, while behaving like conventional standard units relevant system supporting entire range functionality system. simple compact assembly standard rail, direct cabling actors sensors without cross connections between terminals, serve standardize installation, does uniformly designed labeling. small size great flexibility terminal system mean that anywhere that could terminal type connection analog, digital, serial direct sensors. Modularity modular construction terminal row, using terminals with various functions, limits number unused channels most function. channels terminal optimum solution number unused channels cost channel. possibility using power input terminals provide separate power supplies also helps minimize number unused channels. integrated light-emitting diodes close sensor/actor indicate status each channel. K-bus path taken data within terminal row. coupler carries K-bus through terminals means contacts side walls terminals, terminal terminates K-bus. user does need know anything about function K-bus internal operation terminals couplers. There numerous software tools available which provide convenient planning, configuration operation.
Decentralized wiring level control unit
couplers current systems
Standard rail assembly
Display channel status K-bus terminal
BK5200
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BK5200 Power input terminals separately powered groups
Basic information
Three power contacts pass operating power following terminals. power input terminals subdivide terminal desired into groups, each with separate power supply. These power input terminals taken into account addressing terminals, insert them position along terminal row. install terminals terminal row, including power input terminals terminal.
principle terminal
couplers various fieldbus systems
variety couplers attach electronic terminal quickly easily various fieldbus systems, also subsequently convert different fieldbus system. coupler deals with necessary monitoring control tasks operating attached terminals, indeed operation configuration terminals carried coupler. fieldbus, K-bus level electrically isolated. exchange data across fieldbus temporarily interrupted, logic states preserved, digital outputs cleared analog outputs revert reset value which individually configured each output when equipment
BK5200
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BK5200
Basic information
interfaces
There ways making connection coupler. These interfaces designed plug connections spring terminals. DeviceNet coupler BK5200
Power supply
topmost terminals couplers need operating power which connected topmost spring terminals, labeled This power supply serves only electronic components coupler (via K-bus) also terminals. power supply coupler circuitry that K-bus electrically isolated from voltage field level.
Power supply power contacts
Lower terminal pairs power input maximum maximum lower connections with spring terminals used supply power peripherals. spring terminals connected pairs power contacts. power supply power contacts connection power supply couplers. power input designed permit voltages pair-wise arrangement electrical connection between feed terminal contacts makes possible loop through wires connecting different terminal points. load power contact continuously exceed current capacity between spring terminals same capacity connecting wires.
Power contacts
Spring contacts side right-hand side face coupler three spring contacts which power connections. spring contacts recessed slots prevent them from being touched. When terminal connected, blade contacts left-hand side terminal connected spring contacts. slot guides bottom couplers terminals ensure reliable location power contacts.
BK5200
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BK5200
Basic information
Fieldbus connection
9-pin Sub-D female connector left-hand side there flat recessed area where plug typical Profibus male connectors. will find detailed description fieldbus interfaces another part this manual chapter "The transfer medium: plugs cables").
Configuration interface
Serial interface under front flap lower part front face will find standbus couplers which fitted with RS232 interface. miniature plug attached means connection cable configuration software BS2000. This interface enables configure analog channels. also access functionality configuration interface fieldbus means communications.
K-bus contacts
contacts side connections between coupler terminals effected gold contacts right-hand side coupler. When terminals plugged together, these gold contacts automatically complete connection terminals. K-bus responsible power supply electronic components K-bus terminals, exchange data between coupler terminals. Part data exchange takes place ring structure within K-bus. Disengaging K-bus, example pulling terminals, will break this circuit that data longer exchanged. However, there mechanisms place which enable coupler locate interruption report
Supply isolation
supply groups: fieldbus K-bus peripheral level couplers operate with three independent supplies. input power supplies electrically isolated K-bus circuitry coupler K-bus itself. power supply also used generate operating power fieldbus. Note: terminals electrically isolated from K-bus, that K-bus completely electrically isolated. Setting power levels terminal system
BK5200
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BK5200
Basic information
operating modes coupler
When first switched coupler carries self-test check functions components communications K-bus, while this going will flash. When self-test been completed successfully, coupler will begin test attached terminals (the "bus terminal test") read configuration from which constructs internal structure list, which accessible from outside. error occurs coupler will enter operating mode "STOP". start-up sequence completed without errors coupler will enter mode "fieldbus start". Start-up behavior coupler
coupler reports error master means DeviceNet diagnostics. Clearing error returns coupler normal operating mode.
BK5200
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BK5200
Basic information
Mechanical construction
Beckhoff terminal system remarkable compact construction high degree modularity. When design installation will need plan coupler some number terminals. dimensions couplers depend fieldbus system. large plugs, example like some plugs used Profibus, they protrude above overall height cabinet. Dimensions coupler
overall width construction width coupler, including terminal, plus width installed terminals. terminals wide, depending their function. Depending gauge cables used overall height 68mm overstepped about cables front. Assembly connections takes only slight pressure latch coupler various terminals onto supporting 35mm rail locking mechanism then prevents individual housings from being removed. remove them without effort first release latching mechanism pulling orange tab. should carry work terminals coupler only while they switched off: plug unplug components while power briefly provoke some undefined state (and, instance, reset coupler). attach terminals series right-hand side coupler. When assemble components, make sure that mount housings that each slot comes together with corresponding key. cannot make functional connections merely pushing housings together along supporting track. When they correctly mounted there should appreciable between adjacent housings.The right-hand side coupler mechanically similar terminal. There eight connections which used connect thick-wire thin-wire lines. connection terminals spring loaded. open spring terminal applying slight pressure with screwdriver other pointed tool opening above terminal then insert wire into terminal without obstruction. When BK5200
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BK5200
Basic information
release pressure terminal will automatically close hold wire securely permanently. connection between couplers terminals automatically effected latching components together. K-bus responsible passing data power electronic components terminals. case digital terminals, field logic receives power power contacts. Latching components together effect that series power contacts constitutes continuous power track. Please refer circuit diagrams terminals: some terminals loop these power contacts through, completely (e.g. analog terminals 4-channel digital terminals). Each power input terminal interrupts series power contacts constitutes beginning track. coupler also used supply power power contacts. power contact labeled "PE" used protective earth ground. This contactcontacts first safety reasons carry short-circuit currents 125A. Note that interests electromagnetic compatibility contacts capacitively connected supporting track. This lead spurious results even damage terminal when test insulation (e.g. insulation test breakdown using 230V mains supply line). should therefore disconnect line coupler while carry insulation tests. disconnect other power supply points duration test drawing power supply terminals from remaining terminals least 10mm. this, there will need disconnect connections. protective earth power contact ("PE") used other connections. DeviceNet couplers have different configuration levels. electrical data specific fieldbus listed appropriate chapter. following data distinguishes between standard version economy version (BK5200 BK5210). Either version fully compatible DeviceNet, economy version only limited number points, which permits attach only digital inputs outputs.
DeviceNet coupler BK5200 Economy coupler BK5210 typical typical max. max. 1.75 max. max. Veff (K-bus supply voltage) inputs outputs inputs outputs inputs outputs -244 input output bytes output bytes Available KS2000 Standards-conform, 125, KBaud Veff (power contact supply voltage) 170g +55°C -20°C +85°C non-condensing according 68-2-6 68-2-27 according 61000-4-4 61000-4-2, limit 50082-2-4 IP20
Insulation test
power contacts Electrical data
Technical data Voltage supply Input current Output current K-bus Supply isolation Number terminals Digital peripheral signals Analog peripheral signals Peripheral bytes Configuration interface Baud rates Voltage power contact Current load power con. Max. short circuit current Max. voltage capacity Weight approx. Operating temperature Storage temperature Relative humidity Vibration /shock resistance Interference resistance. Burst Orientation mounting Type fuse
BK5200
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BK5200
Basic information
peripheral data process image
When coupler first switched determines configuration attached input/output terminals automatically assigns physical slots input/output channels addresses process image. coupler sets internal list assignments which each input output channels specific position process image. distinction made here between input output between bit-oriented (digital) byte-oriented (analog, complex) signal processing. also forms groups, whereby contains only inputs other only outputs. each group, byte-oriented channels take lowest addresses, ascending order, these then followed bitoriented channels. Digital signals (bit-oriented) Digital signals bit-oriented. This means that process image assigned each digital channel. coupler sets block memory containing current input bits arranges immediately write bits from second block memory which belongs output channels. precise assignment input output channels process image control unit explained detail Appendix means example. Analog signals (byte-oriented) processing analog signals always byte-oriented analog input output values stored memory two-byte representation. values held "SIGNED INTEGER" "twos-complement". digit represents input/output value "0V", "0mA" "4mA". When default settings, maximum value input/output value given "7FFF" hex. Negative input/output values, such -10V, represented "1000" intermediate values correspondingly proportional another. full range 15-bit resolution realized every input/output level. have actual resolution bits, remaining three bits have effect output read input. Each channel also possesses control status byte highest value byte, although version DeveNet coupler does permit control status byte read. analog channel represented bytes process image. coupler supports terminals with additional interfaces, such RS232, RS485, incremental encoder, etc. These signals regarded same analog signals described above. 16-bit data width sufficient such special signals; coupler support data width. When coupler first switched determines number attached terminals sets list assignments. This list distinguishes between analog channels digital channels between input output; which grouped separately. assignments begin immediately left coupler. software coupler creates assignment list collecting entries individual channels time, counting from left right. These assignments distinguish four groups:
Function type channel Analog outputs Digital outputs Analog inputs Digital inputs Assignment level byte-wise assignment bit-wise assignment byte-wise assignment bit-wise assignment
Special signals interface
Default assignment inputs outputs process image
BK5200
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BK5200
Basic information
Complex multi-byte signal terminals represented analog inputs outputs Overview subdivision process image coupler: Output data coupler byte-oriented data Ox+1 bit-oriented data Ox+y Input data coupler byte-oriented data Ix+1 bit-oriented data Ix+y path from I/Os DeviceNet process image
Data consistency
Data which contains contradictions said consistent. following consistency required here: high byte byte analog value (word consistency), control/status byte corresponding parameter word accessing register. interaction peripherals with control unit means that data initially guaranteed consistent only within individual byte: bits which make byte read together, written together. Byte-wise consistency quite adequate processing digital signals sufficient transferring values longer than eight bits, such analog values. various systems guarantee consistency required length. important appropriate procedure importing this consistent data from master system control unit. will find detailed description correct procedure User Guide appropriate system,
BK5200
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BK5200
Basic information
particular description standard master units that installed. chapters this manual which deal with fieldbus refer most common these standard units. Processing complex signals byte-oriented signal channels such RS232, RS485 incremental encoder, byte lengths greater than two. Apart from actual difference length, procedure always comparable with that analog signals.
Starting operation diagnostics
When coupler first switched once checks attached configuration. correct start-up procedure indicated "I/O ERR" going out. this flashes, this indicates fault somewhere terminals. determine actual error code observing speed flashing number flashes. This will enable clear fault quickly. will find detailed description chapter "The diagnostic LEDs". diagnostic LEDs coupler status display consisting groups LEDs. upper group four LEDs which indicate mode installed fieldbus. significance these "fieldbus status LEDs" explained appropriate chapters this manual; they correspond usual displays fieldbuses. There more green LEDs right-hand side coupler indicate supply voltage. left-hand shows supply coupler. left-hand shows supply power contacts. Local errors LEDs, "I/O LEDs", which situated below fieldbus status LEDs described above, used display operating mode terminals connection these terminals. green lights indicate error-free operation, where "error-free" implies that communication with fieldbus system also operating correctly. flashes different rates indicate fault, whereby specific error encoded pattern flashes, follows.
Rapid flashing First slow sequence Second slow sequence flash flashes flashes flashes Start error code Type error Location error
Code flashes
Type error
Connection terminals cannot correctly Break K-bus
Location error
number flashes corresponds position lasK-bus terminal before error, counting passive terminals such power input terminals. coupler will carry flashing error code even when have cleared fault operating mode will remain "Stop". only restart coupler switching power supply again. should plug unplug terminals from series without first turning power. circuitry terminals coupler largely protected against damage, modify assembly while under power, malfunctions damage cannot ruled out. BK5200
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BK5200
Basic information
fault occurs during normal operation, error code will output LEDs until coupler been requested diagnose terminals. This diagnostic request generated after equipment switched
BK5200
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BK5200
BK52x0 DeviceNet
BK52x0 DeviceNet
Introducing system
DeviceNet power terminal power supplied separately. Both power supplies must connected DeviceNet open system based principle which developed years company Bosch. primarily intended transfer data within automobiles, millions chips have since been installed. disadvantage using automation technology that does define application layer, specifies only physical layer data security layer. DeviceNet specifies uniform application layer which makes possible protocol industrial applications. ODVA (Open DeviceNet Association) independent association which supports manufacturers users DeviceNet system. ODVA ensures that devices which conform specification operate together system regardless their manufacture.
Controller
DeviceNet
Other Devices Motor Starter
Sensor
Pushbutton Cluster
Allen-Bradley
Device Configuration
Input/Output Devices Drive
Code Scanner
Motor Controller
Sample DeviceNet network CAN's arbitration procedure makes theoretically possible operate communication networks using master/slave multimaster access methods. coupler BK5200 with corresponding software release supports master/slave operation polling mode) with coupler functioning slave. Subsequent releases coupler will also support multimaster operation. coupler does receive operating power DeviceNet cable. coupler peripherals (the terminals) must wired using connections right-hand side (this explained introductory pages) which enables isolate electrically from peripherals. wish, connect power supply cable peripherals side dispense with decentralized power supply. cable cable consists pairs shielded twisted-pair wiring, data transfer power supply. latter carry currents amperes. maximum possible length line depends essentially Baud rate. choose highest Baud rate (500kBaud) restricted lines most With lowest Baud rate (125kBaud) will able cable with overall length 500m.
BK5200
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BK5200
BK52x0 DeviceNet
Volt Power Supply
Power
Power Conductor Signal Conductor
Node
Node
Node
Node
Node
Node
cable consist main line with branch lines long. important that both ends main line should carry terminating resistors. operate subscribers line. want able plug unplug couplers while equipment operation should attach terminating resistors firmly cable. Using Software Manager system parameters. advisable special software program system parameters, example Allen Bradley's "Software Manager" which enables record parameter data master. When first switched master will compare stored settings with actual configurations each stations. exchange user data between master slave will unless parameters agree. Setting parameters master carried directly DeviceNet connection. DeviceNet system does separate interface such provided other fieldbuses.
BK5200
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BK5200
BK52x0 DeviceNet
Configuring coupler
switches desired configuration before switch coupler. Switches used Baud rate, shown following table.
Setting switches Setting Baud rate
Setting Baud rates (Default)
Setting
switches used where switch lowest value bit, switch highest value bit, setting labeled set. select from range
Switch coupler
When have switches desired configuration switch coupler. changes make switches while system operation will have effect until next time switched
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BK52x0 DeviceNet
Pin-out
DeviceNet connection terminals have separate power supplies. Both power supplies must connected 5-pin plug supplied connecting DeviceNet cable. When plugged into coupler, top. illustration shows socket which located coupler. power supply delivered this plug isolated from power supply terminal right coupler. Both power sources must connected before system operate.
Pin-out DeviceNet connection
CAN-H Drain CAN-L
Exchanging data
Data string from DeviceNet master coupler: first byte-oriented data, then bit-oriented data. Data transferred between masters slaves form objects. coupler recognizes objects: input object output object. Software Manager input/output bytes onto specific memory areas control unit. coupler uses consistent algorithm correlate object data peripherals. Various examples correlations between addresses peripherals explained appendix. (data) object which transferred from DeviceNet master coupler must begin with byte-oriented values, this data analog output terminals. bit-oriented data digital outputs transmitted until byte-oriented values have been sent. Analog outputs receive bits data, i.e. bytes, each channel. analog output terminal with channels must therefore receive bytes. digital output terminal with channels needs total bits data, each channel. first bytes object which transferred terminal assigned first analog output terminal, this analog output terminal nearest coupler. Other terminals which located between coupler first analog output terminals disregarded. next four bytes object second analog output terminal terminal row. other terminals between first second analog output terminals disregarded. When last analog output terminal terminal received data, digital outputs served. Data always transferred form bytes, next byte from data string contains data digital outputs. assigned channels first digital output terminal after coupler. Other types terminal which located between ignored. Bits channels second digital output terminal, bits third bits fourth. There other terminals located between these digital output terminals, they will disregarded. BK5200
bytes 2-channel analog output terminals bits 2-channel digital output terminals First data from analog outputs
then data digital outputs, each case, transferred bytes
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BK5200 Some bits last byte unused
BK52x0 DeviceNet
Additional bytes read from data string until last digital output terminal been dealt with. total number digital outputs multiple there will number bits left over last data byte; these will discarded.
Data string from coupler DeviceNet master transferring input data:
object sent coupler DeviceNet master also contains byte-oriented data beginning, followed bit-oriented data. Transfers this direction also include status byte, which comes right object. byte-oriented data contains values from analog inputs bit-oriented data values from digital inputs.
first byte-oriented data,
first four bytes contain data from first analog input terminal terminal row, where each pair bytes 16-bit value input. next four bytes correspond next analog input terminal analogously procedure described above. After byte-oriented data from analog inputs come values from digital inputs. Eight digital inputs transferred each byte. before, total number digital inputs terminal multiple last data byte will contain more superfluous bits.
then bit-oriented data.
extra status byte transferred each string sent Status byte coupler DeviceNet master, this returns status terminal row. string sent master value corresponds status displayed LEDs coupler: while terminal functioning correctly, "I/O RUN" Status byte=0: will status byte will contain value soon error Status byte=1: occurs, "I/O ERR" will light status byte will contain value
Light-emitting diodes
"RUN" "OVERFL" Module status LEDs "MS" green flashes: green permanently lit: flashes: permanently lit: Network status LEDs "NS" green flashes: green permanently lit: Configuration incorrect Status O.K. Receive queue overflow Status O.K. coupler ready communication, assigned master. coupler assigned master, data being exchanged. BK5200
"CONNECT" "BUS OFF"
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BK5200
BK52x0 DeviceNet Timeout connection OFF: error, subscribers have identical node addresses. terminal working perfectly error
flashes: permanently lit: Input/output status "I/O" green lit: lit:
"I/O RUN" "I/O ERR"
Vendor
vendor 108.
DeviceNet Group
coupler BK5200 invariably Group device.
IDENTIFIER BITS
Group Messages Destination Destination Group Message Reserved Predefined Master/Slave Connection Management Duplicate Check Message Group Message Identifier
MESSAGE MEANING
Overview used identifier
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BK52x0 DeviceNet
Maximum cable length
maximum length cable which used depends selected Baud rate. following lengths should understood total length main line plus branch lines. 125kBaud 500m 250kBaud 250m 500kBaud 100m
Length Thin Cable Used (meters) 125k baud 500k baud 250k baud
Length Thick Cable Used (meters) Lthick Lthin Lthick Lthin Lthick Lthin 125Kbaud 250Kbaud 500Kbaud
where Lthick length thick cable Lthin length thin cable.
Jacket Braid Data Insul ation Color: White Data Insul ation Color:
nsulati Color: Black
Drain
nsulati Color:
cable consists shielded wire pairs. pair carries transmission. second pair distributes supply power.
CAN_H SHIELD CAN_L VBlue P.M.S. #297C Black P.M.S. #426C P.M.S. #207C White 395A within wire/cable limits
Connector wiring information BK5200
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BK5200
BK52x0 DeviceNet
Potential isolation
coupler BK5200 offers potential isolation between DeviceNet cable communication electronic coupler.
Power supply Local source BK5200 Block diagram Node/App Specific Isolation barrier Optical Isolators Local Node Supply
function
Transceiver Shield
drain/shield signal
Power
power
Network Power Supply
Potential levels BK5200
BK5200
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Appendix
Sample arrangement process image coupler
following example will illustrate assignment input/output channels process image. sample construction consist following terminal components: this configuration coupler will create list assignments shown below
Position POS01 POS02 POS03 POS04 POS05 POS06 POS07 POS08 POS09 POS10 POS11 POS12 POS13 POS14 POS15 POS16 POS17 POS18 POS19 POS20 Function component track coupler 2-channel digital input 2-channel digital input 2-channel digital input 2-channel digital input 2-channel digital input 2-channel digital output 2-channel digital output 2-channel digital output 2-channel analog input 2-channel analog output 2-channel analog output 2-channel analog input Power input terminal 2-channel digital input 2-channel digital input 2-channel digital input 2-channel digital output 2-channel digital output 2-channel analog output
POS21
terminal
default analog terminals mapped without Control/Status byte. Please read technical documentation analog terminals further details. Area byte-oriented data, analog outputs
Relative byte address position none none none none none none Process image control unit O10, Position block POS11 POS11 POS12 POS12 POS19 POS19
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Appendix
Area bit-oriented data, digital outputs
Relative byte address
position position none none position
Process image control unit Process image control unit Process image control unit
Position block POS07 POS07 POS08 POS08 POS09 POS09 POS18 POS18 POS19 POS19 Position block POS10 POS13 Position block POS01 POS01 POS02 POS02 POS03 POS03 POS04 POS04 POS05 POS05 POS06 POS06 POS15 POS15 POS16 POS16 POS17 POS17
Area byte-oriented data, analog inputs
Relative byte address
Area bit-oriented data, digital inputs
Relative byte address
items POS14 POS21 relevant data exchange appear list. byte fully used, example coupler pads remaining bits with zeroes. Overview distribution process image coupler: Output data coupler byte-oriented data bit-oriented data
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Appendix
Input data coupler
byte-oriented data bit-oriented data base addresses listed here used relative addresses addresses coupler. have appropriate superordinate Profibus system master enter these addresses desired position process image control unit. configuration software master assign bytes addresses process image control unit.
Representation analog signals process image
Three input bytes three output bytes required process image each analog channel. bytes represent value unsigned integer, i.e. bits sign. This data format used regardless actual resolution. example, with 12-bit resolution, least significant four bits meaningless. value byte control status functions. control byte various operating modes. lowest bits used address bits writing reading register using string communications. register consists registers. bytes analog channel process image Significance control/status bytes accessing register model Output byte Input byte
Output byte Input byte
Control byte Status byte
NORMAL MODE, READ, Register address, Register address Register address Register address Register address Register address,
CONTROL MODE WRITE
BK5200
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Appendix
Register analog channel
User area Factory settings
Software version Type Length Type Secondary process image significance registers status bytes explained data sheets corresponding terminals. construction module identical terminals with more extensive signal processing.
BK5200

DEVICENET Coupler BK5200 Technical Documentation Version D-3

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