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DEVICENETDEVICENET
CAN-based multi master system for transmission of cyclic and acyclic messages
Supports different kinds of communication (Polling, Strobe, Change of State, Cyclic Data Transfer)
Technical Data:Technical Data: Total extent: max. length of the main line 3 km
with the use of repeaters Length of the trunk line: 500m-125kBit/s ; 125m-500kBit/s
(trunk cable use only) Topology: Line Transmission rate: 125-, 250-, 500 kBit/s Cycle time: dependent on the number of slaves number of devices: up to 64 (e.g. 1 master, 63 slaves)
DEVICENET (Description / Technical Data)DEVICENET (Description / Technical Data)
ConnectorsConnectors
7/8 inch(mini-style)
M12(micro-style)
flat-cable(piercing contacts)
(open-style)
Pin allocation / face viewPin allocation / face view
blueCan_L5whiteCan_H4blackV-3redV+2bareDrain1ColourSignalPin
CableCable
Trunk- (Thick-) cable Power: AWG 15 Data: AWG 18 Diameter: 12 mm
Drop- (Thin-) cable Power: AWG 22 Data: AWG 24 Diameter: 6,8 mm
TopologyTopology
Trunk line, drop line configuration Node removal without breaking trunk line Signal and 24Vdc Power in same cable 121 ohm terminator at each trunk line end
Data rate versus bus lengthData rate versus bus length
Data rate 125 kBit/s 250 kBit/s 500 kBit/s
Length oftrunk line(Thick-Cable)
500 m 250 m 100 m
Length oftrunk line(Thin-Cable)
100 m 100 m 100 m
Length oftrunk line(Flat-Cable)
380 m 200 m 75 m
Maximumlength of dropline
6 m 6 m 6 m
Cumulativelength of alldrop lines
156 m 78 m 39 m
Cable length subject to data rate and kind of cable
TelegramTelegram
Telegram structure
SOF
11 BitIdentifier
ControlField Length 0 ... 8 Bytes Data CRC
ACK
EOF
SOF / EOF: Start / End of FrameIdentifier/Control Field: is needed for the data
transmissionLength: number of reference bytes0 ... 8 Bytes: reference data bytesCRC: Cyclic Redundancy Check,
data securityACK: Acknowledge,
data transmission sucessful
Slave #1 Slave #2 Slave #3
Scanner
Communication: Polling
The master communicates with the slaves one after the other.
Communication modesCommunication modes
Slave #1 Slave #2 Slave #3
Scanner
Communication: Strobe
The master sends a broadcast message simultaneously to all slaves.All slaves with inputs send their input data back to the master.
Communication modesCommunication modes
Slave #1 Slave #2 Slave #3
Scanner
Communication: Change of State
All devices transmit their I/O data if the status of the I/O datachanges.
Slave #1 Slave #3
Scanner
Communication modesCommunication modes
Slave #1 Slave #2 Slave #3
Scanner
Communication: Cyclic Data Transfer
All devices transmit their data in fixed time intervals.
every 25 ms every 1000 ms
every 200 ms
Communication modesCommunication modes
Advantages: The most flexible system concerning the variety of communication
(Polling, Strobe, Change of State, Cyclic Data Transfer) Efficient diagnosis functions High data security (HD=6) Response monitoring (slave) Plug & Play configuration by EDS-files Automatic detection of faults and redundant addresses
Disadvantages: Line structure small spatial extension Necessity of setting address and baud rate Software burden (hardly learnable)
DEVICENET (Advantages/Disadvantages)DEVICENET (Advantages/Disadvantages)
DEVICENETDEVICENET-- SystemSystem
Lumberg M12Lumberg M12--familyfamily
Variants: 16 Input (p-switching) 16 Input (n-switching) 8 Outputs (2 A) 16 Outputs (0,5 A) 8 Input / 8 Output (0,5 A)
Lumberg M12Lumberg M12--familyfamily
Variants: 16 Input (p-switching) 8 Outputs (2 A) 8 Input / 8 Output (2 A)
Lumberg 7/8inchLumberg 7/8inch--familyfamily
Variants: 16 Input (p-switching) 8 Outputs (2 A) 8 Input / 8 Output (2 A)
Lumberg 7/8inchLumberg 7/8inch--family family
Variants: 16 Input (p-switching) 16 Input (n-switching) 8 Outputs (2 A) 16 Outputs (0,5 A) 8 Input / 8 Output (0,5 A)
Lumberg 7/8inchLumberg 7/8inch--familyfamily
Variants: 16 Input (p-switching) 8 Outputs (2 A) 8 Input / 8 Output (2 A)
LED green(Module supply)
LED green(Actuator power supply)
LED green/red(Module status)
LED green/red(Network status)
LED red(Sensor short circuit)
LED yellow(Input Statuschannel A / B)
LED yellow(Output Statuschannel A / B)
Earth sheet
Device Net Box 8xInput/8xOutput
Device NetOutDevice Net
In
Actuator power supply
Lumberg module featuresLumberg module features
Mechanical: 0 to 60oC Nema 4, 4x, 6P; IP67 Resistant against vibration and shock because of the
full potted housing M12 sensor-/actuator connectionElectrical: Reverse polarity protection Short circuit protection (sensors /actuators) Watchdog configurable by EDS-file 2A per output Separation between the potentials of sensors and
actuators
Lumberg module featuresLumberg module features