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The VARAN BUS

The VARAN BUS. What is the VARAN bus?. The VARAN bus, the Real-Time Ethernet bus system. Uses standard Ethernet physics according to IEEE 802.3 Protocol implemented completely in the hardware Use of short packets of up to 128 bytes High data reliability Automatic addressing

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The VARAN BUS

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  1. The VARAN BUS

  2. What is the VARAN bus? The VARAN bus, the Real-Time Ethernet bus system • Uses standard Ethernet physics according to IEEE 802.3 • Protocol implemented completely in the hardware • Use of short packets of up to 128 bytes • High data reliability • Automatic addressing • Hard Real-Time with cycle times less than 100 µs and jitter less than 100 ns • Direct access possible during the bus cycle • Simple construction and command set • Distributed clocks are not required (IEEE 1588) • Hot-Plug capable

  3. What is the VARAN bus? The VARAN bus, the Real-Time Ethernet bus system • Synchronized multi manager networks • Standard Ethernet packets are tunneled • Tree, line and star topology • Defined connection technology • Bus signal and power supply provided through a hybrid cable • Electronic identification label • Only one IP address per machine required • CANopen image on VARAN • Open, independent standard • Free service and maintenance tools

  4. What is the VARAN bus? The VARAN bus, the Real-Time Ethernet bus system • VARAN frame vs. standard Ethernet frame

  5. What is the VARAN bus? The VARAN bus, the Real-Time Ethernet bus system • Automatic addressing

  6. What is the VARAN bus? The VARAN bus, the Real-Time Ethernet bus system • Message repetition

  7. What is the VARAN bus? The VARAN bus, the Real-Time Ethernet bus system • • Various tasks for various functions VARAN Manager VARAN Client Isochronous task Asynchronous task Administration task Asynchronous direct access Start new cycle Start new cycle

  8. What is the VARAN bus? The VARAN bus, the Real-Time Ethernet bus system • Components of a VARAN connection

  9. What is the VARAN bus? The VARAN bus, the Real-Time Ethernet bus system

  10. What is the VARAN bus? The VARAN bus, the Real-Time Ethernet bus system • • Cascadable Multi Manager Systems

  11. What is the VARAN bus? The VARAN bus, the optimal connection • Innovative concept for the optimal connection • Industry-suitable IP20 RJ45 connector plugs • M12 8-pin for IP67 • 8+4 Power/Ethernet connection technology • Additional power supply wiring

  12. What is the VARAN bus? The VARAN bus, the optimal connection • • M12 8-pin connector plug • CAT5e certified • Drag chain-suitable cable • Up to 2 A at 24 V

  13. What is the VARAN bus? The VARAN bus, the optimal connection • • 8+4 Power/Ethernet connector • CAT5 certified • IP65 and IP67 • 2 power supplies with 4 A each at 24 V • 1 power supply for the electronics with 0.5 A at 24 V • 1 release signal, 0.5 A at 24 V

  14. What is the VARAN bus? • The VARAN bus, the optimal connection • 8+4 Power/Ethernet connector Connector Housing Ethernet Interface Power Interface Mounting surface

  15. The VARAN BUS USERORGANIZATION The VNO

  16. The VARAN BUS USERORGANIZATION VNO, strong together • Founded 2006 • Independent organization • Machine builders and component manufacturers at one table • All members have equal say • Cooperation with organizations such as the CiA, for example • Regular meetings • Support, maintenance and further development of the standard

  17. Example of topology Optimal Solutions for Innovative Concepts

  18. Example of topology From the smallest sensor to the World Wide Web Internet Office/control level Field level Molding machine Handling Molding machine Handling

  19. Example of topology Modular machine configuration with central control Control System Service Level TCP/IP Service PC Conveyer Service PC Service PC Service PC Robot 1 Robot 2 Molding machine

  20. Example of topology • VARAN bus within the machine TCP / IP DVI Hydraulic Measuring systems TCP / IP VARAN VARAN Multi Manager TCP / IP VARAN Converter Tempering Sensors IO Modules Service Laptop

  21. The VARAN bus in comparison Comparison

  22. The VARAN bus in comparison • VARAN bus in comparison Advantages over: Reason: VARAN bus Optimized frame configuration Topology Manager/Client with optimized frames Ring structure vulnerableto disruptions Protocol implemented completely in the hardware Manager/Client configuration No burdening of the control CPU Safety Packets containing errors are repeated in the same bus cycle Packets are NOT repeated! Programming/design Simple system configuration Short "time to market" Only one connector on periphery devices, minimal wiring requirements, reduction of error sources, Minimization ofcomponent costs Connectionconcept Certified connector for additional power supply Communication Asynchronous direct access to clients No asynchronousaccess possible

  23. Example application Example application

  24. Example application • Package Sorting Facilityfor TNT Distribution Center • • Developed by VAN-RIET, Dutch Material Specialists • Handling systems • • 80% production increase as compared to current field bus solution • • Sorts 9.000 packages per hour • • Minimum runtime: under 1 ms • • Update time < 200 µs • • Maximum configuration with 128 VARAN digital mixed modules • => Corresponds to a maximum of 1024 I/Os networked with the VARAN bus

  25. Example application • Package sorting assembly for TNT Distribution Center • Schematic configuration Light sensor Spring or pneumatic actuator 16 x IO digital (max. 128 VDM)

  26. Example application Thank you

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