Quatech INTERBUS S manual Structure of the in- and output data for Profibus from firmware WH

Models: INTERBUS S

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Structure of the in- and output data for Profibus (from firmware WH)

Structure of the in- and output data for Profibus (from firmware WH)

The ID 179 (hex: 0xB3), ( Data consistence over 4 Byte) is used.

Outputs

Byte

D0

D1

D2

D3

Description

Output byte0

Output byte1

Output byte2

Output byte3

Inputs

Byte

D0

D1

D2

D3

Description

Input byte0

Input byte1

Input byte2

Input byte3

For the ID 188 (hex.: 0xBC), Data consistence over 6 Byte is used, input and output data are now as follows:

Outputs

Byte

D0

D1

D2

D3

D4

D5

Description

Control byte

Output byte0

Output byte1

Output byte4

Output byte2

Output byte3

Inputs

Byte

D0

D1

D2

D3

D4

D5

Description

Statusbyte

Input byte0

Input byte1

Input byte4

Input byte2

Input byte3

For a S7 PLC the function code SFC14 and SFC15 must be used because the data length is more than 4.

Attention:

The control byte allows the changing of the registers of the module. It must always be 0 in order to avoid a change in the registers. A wrong mapping can change the function of the module!

Data￿￿￿￿￿￿￿￿exchange module 750-654

5

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Page 142
Image 142
Quatech INTERBUS S manual Structure of the in- and output data for Profibus from firmware WH