ABB RETA-01 User Manual

Also see for RETA-01: User manual

Contents

ABB RETA-01 User Manual Manual pdf 45 page image

Communication profiles45Communication profilesOverviewThis chapter describes the communication profiles used in thecommunication between the Modbus/TCP and Ethernet/IPnetworks, the RETA-01 module, and the drive.Communication profilesCommunication profiles are ways of conveying control commands(Control word, Status word, references and actual values)between the master station and the drive.With the RETA-01 module, the Ethernet/IP network may employeither the ODVA AC/DC drive profile or the ABB Drives profile.Modbus/TCP network may employ only the ABB Drives profile.The ODVA AC/DC drive profileThis section briefly describes the ODVA AC/DC Drive profiles.Additional information can be obtained from www.odva.org.An Ethernet/IP node is modelled as a collection of abstractobjects. Each object represents the interface to and behaviour of acomponent within the product. The ODVA AC/DC Drive Profilesdefine a collection of objects suitable for the control of AC and DCdrives. Objects supported by the RETA-01 Ethernet Adapter arelisted in section Class objects on page 63. Objects are defined by:ï Serviceï Classï Instanceï Attributeï BehaviourFor example, to set the drive speed reference, theSet_Attribute_Single service can be requested for AttributeSpeedRef of the Class AC/DC Drive Object. The resulting