ABB RETA-01 User Manual

Also see for RETA-01: User manual

Contents

ABB RETA-01 User Manual Manual pdf 55 page image

Communication55EtherNet/IPOverviewThis chapter describes the Ethernet/IP communication protocol forRETA-01. For detailed information on Ethernet/IP communication,refer to ODVA Ethernet/IP specifications Release 1.0.Introduction to Ethernet/IPEthernet/IP is a protocol based on Common Industrial Protocol(CIP) technology, which is also the framework for both DeviceNetand ControlNet. Ethernet/IP specifies the wiring, and the datatransfer through the bus.The RETA-01 module can act as a server on an EtherNet/IPnetwork.Object modelling and functional profilesOne of the main features of EtherNet/IP is object modelling.EtherNet/IP requires mandatory objects specified by ODVA inaddition to some vendor-specific objects. A group of objects canbe described with a Functional Profile. The RETA-01 realizes theODVA AC/DC Drive Functional Profile with additional features.Assembly objectsI/O Assembly Instances may be referred to as Block Transfer ofdata. Intelligent devices realizing a Functional Profile, such as theRETA-01, have several objects. Since it is not possible to transmitmore than one object data through a single connection, it ispractical and more efficient to group attributes from differentobjects into a single I/O connection using the Assembly object.The Assembly object acts as a tool for grouping these attributes.The RETA-01 uses static assemblies (in other words, fixed set ofobject data), except for the User Specific Control assembly, whereuser can select the I/O parameters.The module has two communication profiles as representedabove, AC/DC drive profile and ABB Drives profile.