Beckhoff BC7300 Bedienungsanleitung PDF herunterladen (Seite 3)

Table of contents

BC7300 3

Table of contents

1. Foreword 5

Notes on the documentation 5

Liability Conditions 5

Delivery conditions 5

Safety Instructions 6

State at Delivery 6

Description of safety symbols 6

2. Basic Principles 7

Device Description of the BC7300 7

The Beckhoff Bus Terminal System 7

The interfaces 9

Electrical power supply 9

Power contacts feeding points 9

Power contacts 9

Fieldbus connection 9

Configuration and programming interface 10

KS2000 Software 10

TwinCAT BC 10

K-Bus Contacts 10

Electrical isolation 10

Operating Modes of the Bus Terminal Controller 11

Mechanical structure 11

Technical data 14

Peripheral Data in the Process Image 15

Start-up procedure and Diagnostics 16

Fieldbus errors 18

3. MODBUS 19

Basic Principles 19

Bus Topology 19

Process Data and Memory Map 20

MODBUS Process Image 22

BC7300 Process Image 22

Assignment of the Bus Terminals 23

Setting and Parameterisation of the MODBUS 24

Parameterisation Table 25

The MODBUS Protocol 26

ASCII 26

RTU 26

Functions 27

Read Digital Outputs (Function 1) 27

Read Digital Inputs (Function 2) 28

Read Analog In/Outputs (Function 3) 28

Read Analog Inputs (Function 4) 29

Writing a Digital Output (Function 5) 30

Writing an Analog Output (Function 6) 30

Writing a Number of Digital Outputs (Function 15) 31

Writing a Number of Analog Outputs (Function 16) 32

Writing and Reading Analog Outputs and Inputs 33

(Function 23) 33

Echoes a query (Sub-Function 0) 35

Bus Coupler Reset (Sub-Function 1) 35

Delete All Counter Contents (Sub-Function 10) 35

Bus Communication Error Counter (Sub-Function 11) 35

Error Answer Counter (Sub-Function 13) 35

Slave Answers (Sub-Function 14) 36

1 2 3 4 5 6 7 8 ... 47 48

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