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The VARAN Bus, the Real-Time Ethernet Bus System www.varan-bus.net 1 / 23 The VARAN Bus.

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Presentation on theme: "The VARAN Bus, the Real-Time Ethernet Bus System www.varan-bus.net 1 / 23 The VARAN Bus."— Presentation transcript:

1 The VARAN Bus, the Real-Time Ethernet Bus System 1 / 23 The VARAN Bus

2 The VARAN Bus, the Real-Time Ethernet Bus System 2 / 23 Hard real-time Cycle times < 100 µs and jitter < 100 ns High data security For use in harsh industrial environments Short packet lengths up to a max. of 128 bytes Flexible network principle Line, star and tree structures can be combined as desired. Modular machine structures Low system costs Use of inexpensive standard components The VARAN Bus, the Real-Time Ethernet Bus System LASAL Highlights at a Glance

3 The VARAN Bus, the Real-Time Ethernet Bus System 3 / 23 VARAN Function Principle Uses the Manager/Client Principle Guaranteed data consistency with reconfirmation of each message Distributed clocks are not required: synchronization with a PLL mechanism Cycle time < 100 µs

4 The VARAN Bus, the Real-Time Ethernet Bus System 4 / 23 VARAN Function Principle Various Tasks for Various Jobs Standard Ethernet packets are tunnelled Maximum protection against unauthorized access! No firewall needed! Asynchronous direct access during the bus cycle

5 The VARAN Bus, the Real-Time Ethernet Bus System 5 / 23 VARAN Function Principle VARAN Frame vs. Standard Ethernet Frame

6 The VARAN Bus, the Real-Time Ethernet Bus System 6 / 23 The VARAN Bus Speaks Safety The VARAN Bus, Integrated Safety Black channel principle Decentralized Safety solutions SIL-3, IEEE 61508, PL e

7 The VARAN Bus, the Real-Time Ethernet Bus System 7 / 23 VARAN Function Principle Automatic addressing Simple function Simple instruction sets Data exchange over a common address range Up to 65,280 participants The VARAN Bus is Simple

8 The VARAN Bus, the Real-Time Ethernet Bus System 8 / 23 Components of a VARAN Connection VARAN Function Principle VARAN protocol executed completely in the hardware Inexpensive standard components are used

9 The VARAN Bus, the Real-Time Ethernet Bus System 9 / 23 Electronic type label VARAN Function Principle Unique identification for each participant

10 The VARAN Bus, the Real-Time Ethernet Bus System 10 / 23 The VARAN Bus: Access Times Performance Characteristics Bus cycle times< 100 µs Isochronous access time2.18 µs 8 I/Os = 1 byte 5.05 µs1 drive 16 bytes r/w Asynchronous direct access < 25 µs128 bytes Synchronicity-inaccuracy < 100 ns jitter Portable to Gigabit Ethernet without protocol changes

11 The VARAN Bus, the Real-Time Ethernet Bus System 11 / 23 High Data Security Communication during an error Industrial environment affected by disruptions When data is lost: Data is resent in the same bus cycle Data Security

12 The VARAN Bus, the Real-Time Ethernet Bus System 12 / 23 Hot-Plug capability Automatic addressing Electronic type label Only 1 IP address per machine Function principle Flexible Network Principle

13 The VARAN Bus, the Real-Time Ethernet Bus System 13 / 23 Synchronous Multi-Manager Systems Function Principle Modular configuration of production lines

14 The VARAN Bus, the Real-Time Ethernet Bus System 14 / 23 VNO, Strong Together VARAN BUS USER ORGANIZATION e.V. VARAN BUS USER ORGANIZATION Founded in 2006, registered organization, independent The VNO holds the rights to the open VARAN bus technology Control-independent Unlimited VARAN technology user rights for members Defined connection technology Cooperation with organizations such as VDMA. CiA CANopen® mapping in VARAN Consultation, maintenance and development of the standard

15 The VARAN Bus, the Real-Time Ethernet Bus System 15 / 23 What is the VARAN Bus The VARAN bus, the Real-Time Ethernet Bus System

16 The VARAN Bus, the Real-Time Ethernet Bus System 16 / 23 VARAN bus Connection Technology The VARAN Bus, the Optimal Connection Industrial RJ45 (IP 20) connector Signal and power supply with hybrid cable M12 connector plug (IP67) up to 2 A 8+4 power / Ethernet connection technology (IP67) up to 10 A

17 The VARAN Bus, the Real-Time Ethernet Bus System 17 / 23 Topology Examples From the Smallest Sensor to the World Wide Web Field level Office / control level Injection molding machine Handling Internet

18 The VARAN Bus, the Real-Time Ethernet Bus System 18 / 23 Topology Examples Modular Machine Construction with Central Controls Central control TCP / IP Control computer Conveyor system Service PC Robot Injection moulding machine Switch TCP / IP VARAN

19 The VARAN Bus, the Real-Time Ethernet Bus System 19 / 23 Topology Examples VARAN Bus in the Machine VARAN Multi Manager SensorsTemperature control unit I/O Modules Service Laptop Hydraulics Length measuring systems TCP / IP VARAN TCP / IP VARAN DVI Drives

20 The VARAN Bus, the Real-Time Ethernet Bus System 20 / 23 Application Example Developed by VAN-RIET, Dutch specialist for material handling systems Production increase of 80% compared to the current field bus solution 9,000 packages sorted per hour Minimum runtime: under 1 ms Update time < 200 µs Maximum scan rate with 128 VARAN digital mixed modules => corresponds to a maximum of 1024 I/Os networked with the VARAN bus Package Sorting System TNT Distribution Centre

21 The VARAN Bus, the Real-Time Ethernet Bus System 21 / 23 Application Example Schematic diagram TNT Distribution Centre Package Sorting System Light barrier Spring or air actuator (Max. 128 VDM)

22 The VARAN Bus, the Real-Time Ethernet Bus System 22 / 23 Application example TNT Distribution Centre Package Sorting System

23 The VARAN Bus, the Real-Time Ethernet Bus System 23 / 23 VARAN Bus With the VARAN bus you increase performance and data security


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