Ethernet/IP

Ethernet/IP is a communication protocol for industrial automation technology based on Ethernet. Ethernet/IP uses the CIP (Common Industrial Protocol) known from DeviceNet. Changing over to the new technology is therefore very convenient for DeviceNet users.

 

Ethernet/IP has the following characteristics:

  • Real-time communication is based on CIP via UDP/IP, including standard Ethernet
  • Suitable for real-time requirements with cycle times >10 – 40ms
  • Use of standard network components (switches etc.) and IT practices
  • Communication/routing without special gateway across network segments
  • Redundancy concepts for transmission paths and control system access available

 

AUMA actuators with AC .2 actuator controls support Ethernet/IP, allowing easy and flexible integration into virtually any type of network.

  • Details

    • Functions

      • Switched Ethernet with flexible priority flow control
      • Data exchange in compliance with producer consumer model:
        A field device/adapter as producer provides
        process data to the DCS/scanner (consumer)
      • IP based addressing in compliance with IT practices
      • CIP protocol communication via UDP/TCP/IP
        Cyclic data : CIP Implicit I/O via UDP
        Acyclic data : CIP Explicit Messages via TCP
      • Device classes:
        Scanner (PLC/DCS)
        Adapter (field devices)
      • CIP data structure:
        Device/process data included as attributes within CIP data objects.
      • Redundancy via Device Level Ring (DLR)
      • Network diagnostics via Managed Switches
    • Actuators with Ethernet/IP

      • Available for SA multi-turn actuators and SQ part-turn actuators with AC 01.2 actuator controls
      • 1 Ethernet port 100BASE-TX (100 Mbit/s) for star wiring
      • Connection via M12 connector or RJ-45 connector
      • IP settings via DHCP or operating software
      • Simple wiring by means of auto negotiation,
        - cross over and polarity
      • Process data input/output represented in CIP I/O objects
      • Classification of diagnostic actuator signals according to NAMUR NE 107
      • Device integration via EDS file
    • Commissioning & communication

      AUMA actuators with Ethernet/IP interface integrate smoothly into network infrastructures and can be identified and addressed by means of their IP address – similar to the PCs within a local network.

       

      Just few steps are required to integrate an AUMA actuator into an Ethernet/IP environment.
      First, the IP address is assigned and a standardised device description (EDS file) integrated into the DCS.
      The communication objects/instances for process representation input and output data are configured using the system tools of the DCS.

       

      For higher real-time requirements, the network utilisation has to be scheduled and managed switches with IGMP functionality have to be used.