Siemens SIMATIC Distributed I/O System DP/ASi Link Manuel de service télécharger pdf (Page 126)

C-10

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

C.4 Structure of the Parameterization Message in Simple Configuration

The parameterization message has a fixed length of exactly 32 bytes.

Bytes 0 to 6 contain the parameters of the DP standard part.

Table C-8 Assigning the DP standard part

Byte 0 1 2 3 4 5 6

Value Refer to Table C-1

Bytes 7 to 14 are referred to as the initialization bytes.

The structure of the first initialization byte, byte 7, is described in Table C-3.

Bytes 8 to 14 contain fixed default values for initialization of the DP/ASi

link, which must not be modified.

Table C-9 Default values of bytes 8 to 14 for initialization

Byte 8 9 10 11 12 13 14

Value 00

Byte 15 defines the response when the actual configuration read by the DP/

ASi link does not agree with the setpoint configuration.

Table C-10 Definition of response when setpoint and actual configurations differ

Byte

Value Refer to Table C-5

Parameterization

message structure

DP standard part

Initialization bytes

Control byte

Parameterization Message

1 2 ... 121 122 123 124 125 126 127 128 129 130 131 ... 151 152

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Siemens SIMATIC Distributed I/O System DP/ASi Link Manuel de service Page 126