Beckhoff BK8000 Manuale Utente

Bus coupler with RS485 interfaceBK8000 Technical Documentation Version 1.2 2006-10-30

Basic information 10 BK8000 Mechanical construction The Beckhoff bus terminal system is remarkable for its compact construction and high degre

Basic information BK8000 11 Insulation test PE power contacts The connection between bus couplers and bus terminals is au

Basic information 12 BK8000 current consumption. In doing so, pay attention to the maximum output current of the bus coupler that is available for

Basic information BK8000 13 These assignments distinguish four groups: Function type of the channel Assignment level 1. Analog outputs byt

Basic information 14 BK8000 Starting operation and diagnostics When the bus coupler is first switched on it at once checks the attached configu

Basic information BK8000 15 Communication errors The top four LEDs show the operating states of RS485 communication. The two bottom LEDs indicate

RS 485 Coupler BK8000 16 BK8000 RS 485 Coupler BK8000 System presentation General Beckhoff KS8000: BKcom-OCX The BK8000

RS 485 Coupler BK8000 BK8000 17 The media: plugs and cable The cable is connected by means of a 9-pole D-sub connector on the left side of the

RS 485 Coupler BK8000 18 BK8000 Data communication Data transfer protocol Data communication with the bus coupler is realised by way of a simpl

RS 485 Coupler BK8000 BK8000 19 Response In its response, the bus coupler answers the request by the master. Description of the response Byte

Contents 2 BK8000 Contents 1. Foreword 3 Notes on the documentation 3 Liability Conditions 3 Delivery conditions 3 Copyright 3 Safety Instru

RS 485 Coupler BK8000 20 BK8000 The following table provides a list of the plugged-in terminals in their physical arrangement on the coupler wit

RS 485 Coupler BK8000 BK8000 21 Request The following data must be transferred in the request (output data to the coupler) from the master to the

Appendix 22 BK8000 Appendix Sample arrangement of a process image in the bus coupler The following example will illustrate the assignment of i

Appendix BK8000 23 Area for bit-oriented data, digital outputs Relative byte address Bit position Process image in the control unit Position in

Appendix 24 BK8000 Input data in the bus coupler I0 ... byte-oriented data... I3 I4 ... bit-oriented data ... I5 The base addresses I0 and O

Appendix BK8000 25 Register set of an 63 analog channel 47 31 15 User area 16 0 OFF SET

Support and Service 26 BK8000 Support and Service Beckhoff and their partners around the world offer comprehensive support and service, making a

Foreword BK8000 3 Foreword Notes on the documentation This description is only intended for the use of trained specialists in control and au

Foreword 4 BK8000 Safety Instructions State at Delivery All the components are supplied in particular hardware and software configurations appro

Basic information BK8000 5 Basic information The Beckhoff bus terminal system Up to 64 bus terminals each with 2 I/O channels for any form

Basic information 6 BK8000 Power input terminals for separately powered groups Three power contacts pass the operating power to the following te

Basic information BK8000 7 The interfaces There are six ways of making a connection to a bus coupler. These interfaces are designed as plug c

Basic information 8 BK8000 RS 485 Connection 9 pole Sub-D female connector strip There is a recessed front surface on the left-hand side. A 9-po

Basic information BK8000 9 The operating modes of the bus coupler When it is first switched on the bus coupler carries out a self-test to che