Siemens SIMATIC Distributed I/O System DP/ASi Link Manual de servicio descargar pdf (Pagina 133)

D-5

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

The following example presents the structure of the five bytes of data (bytes

15 to 19) for a DP/ASi link with inputs and outputs.

Byte

Value Meaning

15 C2

Specific identification format:

 there follows one length byte for output data

 there follows one length byte for input data

 there follow two bytes of manufacturer-specific data

16 00

Length byte for output data:

 data format: byte

 byte consistency

 output length: 1 byte

17 01

Length byte for input data:

 data format: byte

 byte consistency

 input length: 2 bytes

18 3C

Manufacturer-specific data

19 40

The following example shows the structure of the five bytes of data (bytes 15

to 19) for a DP/ASi link having only inputs.

Byte

Value Meaning

15 43

Specific identification format:

 there follows one length byte for input data

 no output data are present

 there follow three bytes of manufacturer-specific iden-

tification

16 02

Length byte for input data:

 data format: byte

 byte consistency

 input length: 3 bytes

17 00

Manufacturer-specific data

18 3C

19 40

Example 1

Example 2

Configuration Message

1 2 ... 128 129 130 131 132 133 134 135 136 137 138 ... 151 152

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