Siemens SIMATIC Distributed I/O System DP/ASi Link Wartungshandbuch PDF herunterladen (Seite 97)

8-11

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

The diagnostic message for the S7/M7 DP master contains 24 bytes of data.

The structure of the entire diagnosis is shown in Table 8-7.

Table 8-7 Diagnostic message structure for the S7/M7 DP master

Byte(s) S7/M7 DP Master

0 Stations status 1

1 Stations status 2

2 Stations status 3

3 Station number, DP Master

Manufacturer ID (801B

)

6 Header and length of module diagnosis

7 Module diagnosis

8 Module diagnosis

9 Header and length of station diagnosis

10 S7 diagnostic interrupt ID

11 S7 slot

12 Reserved

13 – 16 Part 1 of station diagnostic data (DS 0)

17 – 23 Part 2 of station diagnostic data (DS 1)

Structure for

S7/M7 DP master

Diagnostics and Error Handling

1 2 ... 92 93 94 95 96 97 98 99 100 101 102 ... 151 152

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Siemens SIMATIC Distributed I/O System DP/ASi Link Wartungshandbuch Seite 97