Siemens SIMATIC Distributed I/O System DP/ASi Link Manual page 133

Example 1 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
15
16
17
18
19
Example 2
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
15
16
17
18
19
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Value
C2 Specific identification format:
H
there follows one length byte for output data
there follows one length byte for input data
there follow two bytes of manufacturer-specific data
00 Length byte for output data:
H
data format: byte
byte consistency
output length: 1 byte
01 Length byte for input data:
H
data format: byte
byte consistency
input length: 2 bytes
3C Manufacturer-specific data
H
40
H
Value
43 Specific identification format:
H
there follows one length byte for input data
no output data are present
there follow three bytes of manufacturer-specific iden-
tification
02 Length byte for input data:
H
data format: byte
byte consistency
input length: 3 bytes
00 Manufacturer-specific data
H
3C
H
40
H
Configuration Message
Meaning
Meaning
D-5