Siemens SIMATIC Distributed I/O System DP/ASi Link Manual de servicio descargar pdf (Pagina 98)

8-12

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

8.2.4 Contents of DP Standard Part

The first six bytes of the diagnostic message (byte 0 to byte 5) are termed the

DP standard part. They are independent of the DP slave used.

You will find a description of the structure of station status 1 in Table 8-8.

The default setting is 02

Table 8-8 Structure of station status 1

Bit Value Contents

0 1 DP/ASi link cannot be addressed.

1 1 DP/ASi link not yet ready for data exchange.

2 1 The configuration data sent by the DP master do not correspond to

the configuration of the ASi.

3 1 Slave diagnosis available.

4 1 Requested function not supported by DP/ASi link.

5 1 Implausible response received from DP/ASi link.

6 1 Erroneous parameterization message present.

7 1 DP/ASi link assigned parameters by a DP master other than the DP

master that is just attempting to access the DP/ASi link.

You will find a description of the structure of station status 2 in Table 8-9.

The default setting is 05

Table 8-9 Structure of station status 2

Bit Value Contents

0 1 New parameters have to be assigned to DP/ASi link.

1 1 Static diagnostics available.

2 1 Reserved

3 1 Response monitoring activated.

4 1 FREEZE mode enabled.

5 1 SYNC mode enabled.

6 0 Reserved

7 0 DP/ASi link de-activated.

DP standard part

Station status 1

Station status 2

Diagnostics and Error Handling

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Siemens SIMATIC Distributed I/O System DP/ASi Link Manual de servicio Pagina 98