1. Time Aware Network (TAN) technology that enables industry 4.0
The Innovative
Time Aware Network (TAN)
technology that enables industry 4.0
BEIJING NENET TECHNOLOGY CO. LTD
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2. What is TAN ? Industry communication requirement
Must be Time Sensitive Network？
Key 1：
Deterministic and nondeterministic Integration
Key 2：System synergy
What is TAN ?
Key 3：Network Robustness
Key 4：Network Observability
Key5：Network Security

3. What is TAN(Time Aware Network)
Using an example, If you drive a car on a road, the legacy Ethernet tagged car only, but TAN tagged both car and road with synchronized clock. The network achieved by this method is called TAN.
TAN
where come from
TAN(Time Aware Network) is a time-oriented industry communication technology.
Time Aware Network is more than time synchronization.
TAN born from Ethernet, renovated from Ethernet, and fully compatible with Ethernet.
Time Aware Network has three key features:
1. Time aware of network
The time of entire network is synchronized
2. Time aware of network device
Entire network devices is precisely synchronized
3. Time aware of data
All data has precision time attribute .
I I
TAN frame
Ethernet frame
Destination Switch ID
Source Switch ID
Channel protocol
Channel-based frame ID
Timing Protocol
Destination MAC
Source MAC
Ethernet protocol
Ethernet Data
CRC

4. TAN deliver network deterministic insensitive transportation
& NENET
Make Changes with TAN
TAN deliver network deterministic insensitive transportation

5. TAN Deterministic transportation in TAN +
TOCAT（ Time-Oriented Control Automation Technology） +
control instruction
target time
Random deliver in cycle
deliver data by cycle
control software
operating system
controlled device
TAN
The legacy control system only deliver control instruction to the controlled device.
TAN not only deliver the control instruction, but also the target time for the controlled device to take action.
Since the clock of TAN is synchronized, the controlled device can take action at any target time.
In this regard, TAN is not only a network for data transportation, but also a global timing controller.

6. It's NOT important that the network is Time Sensitive Network.
TAN jitter test result in the lab
800M(Mega) data traffic in the network
jitter<500ns
It's NOT important that the network is
Time Sensitive Network.

7. Low latency transportation in TAN
Source
Destination
Interfering data 1 3 2 4 5 6
2.1us
0.8us
Achievement
network delay per hop for real-time channel: 0.8~3µs
Multi-channel structure,network determinism is guarteed
Per channel is prioritized and pre-emption mechanism is supported .Higher priority channel could interrupt the lower priority traffic , and afterwards resume disrupted traffic, so lower latency is guaranteed for higher priority traffic.

8. System synergy
TOCAT（ Time-Oriented Control Automation Technology） +
control instruction
target time
Random deliver in cycle
deliver data by cycle
control software
system A
controlled device
TAN
system N
contolled device -N t
system A
system N
500us
1000us
1500us
600us
Different systems on the network can achieve system synergy by TOCAT
1200us
1800us

9. Synchronization of multi-axis
& NENET
& NENET
Make Changes with TOCAT
Synchronization of multi-axis

10. TAN Synchronization of multi-axis + Multiple Sampling Commands
control system +
sampling t1
TAN
t1 time
sample
sample
sample
sample
sample
sampling
Simultaneously
servo motor 1
servo motor 2
servo motor 3
servo motor 4
servo motor n
Since the clock of servo motor on TAN is synchronized,
Servo motor 1,2,,N can take sampling simultaneously with the unique reference clock.
Or take actions in the same way.
The synchronization of multi-axis design is much simplified compared with the legacy method.
TAN can achieve multiple-axis synchroniztion control, with unlimited number of axis.
data transfer from source to destination is determined.

11. & NENET
Robustness in TAN

12. Any network topology at layer 2
Legacy Layer 2 topology
The TAN network can do more

13. Any network topology at layer 2
If you need,the TAN topology can be like this

14. Any network topology, without pre-configuration (Loop-free design)
Achievement T
The TAN support any network topology as you can ever imagined.The real “WEB” design at your hand
The TAN network management can scan the whole network and gives you the real topology.
With this feature, in field application, we need only electricians not IT engineers.
All layer 2
Seamless redundency
Loop-free
No pre-configuration
TAN technology support network topology as you never imagined

15. Multi-path transportation seamless redundency is achieved
Achievement
The TAN network will intelligently calculate the LEAST EFFECTIVE AREA(LEA) of communication and select multiple paths for traffic within selected area(LEA).The LEA is dynamic for traffic of different network access.Traffic is “always” confined within LEA.
Multi-path communication possibles fault-free network which significantly enhance network robustness.
The “LEAST EFFECTIVE AREA” rule is designed in with maximum 4 optimized paths are dynanically auto configured

16. Wireless Communication
& NENET
Make Changes with TAN
Dual-path
Wireless Communication

17. The legacy wireless communication
Control Server
Switch
AP 1
AP 2
Data Loss Caused by Linkage Switching
link Down
link Up
Data Loss Caused by Environmental
Impact on Single path Communication
Mobile devices

18. TAN Dual-path wireless communication
Data
TAN network
Control Server
TAN Switch
TAN Switch
AP 1
AP 2
link Set-up
No linkage switching
link Up
No data loss
TAN Client
Two identical data
Data

19. Evolution TAN Switch TAN network Control Server TAN Switch AP 1 AP 2
Each location keeps two active links
Significantly Reducing wireless data Loss
TAN Client
TAN Client
TAN Client
Support wireless roaming
Location 1
Location 2
Location 3

20. Compatibility Legacy Ethernet devices can join in
TAN Switch
TAN network
Control Server
TAN Switch
AP 1
AP 2
AP3
AP4
Legacy Ethernet devices can join in
Support wireless roaming
TAN Client

21. Network Observability
& NENET
Time aware of data
Network Observability

22. TAN Network Observability Achievement
The legacy IT technology use port mirroring only,
But TAN can do the entire network scanning as you desired:
1.Topology and topology changes are visible
2. All data with network access time and network delay is visible.
3. Accurate observation is achieved.
4. Accurate data path is observed.
TAN
Device A
Observation
Device C
Device B
Device D
DATA
Direction
Access Time
Network Dlay
hello..
A->B
10:01m1s233ms3us
70us hi
B->A
10:01m1s233ms4us
88us
nice
A->D
10:01m1s233ms80us
99us
NO Need
A->C
timing resolution 1us

23. Secured TAN A New Method of Network Security & NENET
Network Security in TAN
Secured TAN
A New Method of Network Security

24. Network Security
Achievement
The communication model is easily obtained as TAN provide a transparent network with time features , thus potential network attack can be discovered at early stage.
IT has matured protection methods for threats that are known; but how can we prevent Industry from the unknown attack ?
TAN provides a unique protection scheme for the unknown attack.
Watch a movie at 1:00 on April 1st
Watch a movie at 1:00 on April 2nd
Watch a movie at 1:00 on April 3rd
Watch movies at 1:00；1:30；2:00 on April 4th
Abnormal

25. THANK YOU BEIJING NENET TECHNOLOGY CO. LTD
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