Siemens SIMATIC Distributed I/O System DP/ASi Link, Руководство пользователя

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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
H
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
H
Length byte for output data:
data format: byte
byte consistency
output length: 1 byte
17 01
H
Length byte for input data:
data format: byte
byte consistency
input length: 2 bytes
18 3C
H
Manufacturer-specific data
19 40
H
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
H
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
H
Length byte for input data:
data format: byte
byte consistency
input length: 3 bytes
17 00
H
Manufacturer-specific data
18 3C
H
19 40
H
Example 1
Example 2
Configuration Message