Beckhoff BK5200 Bedienungsanleitung PDF herunterladen (Seite 29)

Appendix

BK52x0 29

Appendix

Example: composition of a process image

in the Bus Coupler

An example shows the assignment of in- and output channels to the

process image. The sample construction is to consist of the following

assembly of Bus Terminals:

Position Functional groups on the rail

POS01

Bus Coupler

POS02

Digital inputs, 2 channels

POS03

Digital inputs, 2 channels

POS04

Digital inputs, 2 channels

POS05

Digital inputs, 2 channels

POS06

Digital inputs, 2 channels

POS07

Digital outputs, 2 channels

POS08

Digital outputs, 2 channels

POS09

Digital outputs, 2 channels

POS10

Analog inputs, 2 channels

POS11

Analog outputs, 2 channels

POS12

Analog outputs, 2 channels

POS13

Analog inputs, 2 channels

POS14

Power feed terminal

POS15

Digital inputs, 2 channels

POS16

Digital inputs, 2 channels

POS17

Digital inputs, 2 channels

POS18

Digital outputs, 2 channels

POS19

Digital outputs, 2 channels

POS20

Analog outputs, 2 channels

With this configuration, the

Bus Coupler sets up the

following assignment list

POS21

End terminal

By default, DeviceNet only supports signal channels that are 16 bits

wide. The STATUS/CONTROL BYTE is not available. This means, for

instance, that an analog input terminal with 2 channels appears with 2

x 16 bits in the process image. The images have corresponding

differences with respect to byte addresses and assignments.

Area for byte-oriented data,

analog outputs

Relative byte

address

Bit position Controller process

image

Position in the

block

0, 1

none O0, O1 POS11

2, 3

none O2, O3 POS11

4, 5

none O4, O5 POS12

6, 7,

none O6, O7 POS12

8, 9

none O8, O9 POS20

10, 11

none O10, O11 POS20

1 2 ... 24 25 26 27 28 29 30 31 32

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