Siemens SPC3 Spezifikationen PDF herunterladen (Seite 29)

Introduction To ProfiBus DP

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Acromag, Inc. Tel:248-624-1541 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com

Diag_Data Response Telegram DU Byte 3 – Station_status_3

Bit DIAGNOSTIC

0-6

Reserved.

7 Diag.Ext_Diag_Overflow:

Set if there is more diagnostic

information than specified in Ext_Diag_Data. For example, slave

sets if slave has more diagnostics than it can enter into its send

buffer. Set by master if slave sends more diagnostic information

than it can enter into its diagnostic buffer.

Diag_Data Response Telegram DU Byte 4 (Para Master Address)

Bit DIAGNOSTIC

0-7 Diag.Master_Add:

The master’s address that parameterized this

slave is entered here. If no master has parameterized this slave,

then the DP Slave inserts 255 here (FF without parameterization).

Diag_Data Response Telegram DU Byte 5 - Ident_Number High Byte

Bit DIAGNOSTIC

0-7

Manufacturer Identification Number High byte for ID & verification

Diag_Data Response Telegram DU Byte 6 - Ident_Number Low Byte

Bit DIAGNOSTIC

0-7

Manufacturer Identification Number Low byte for ID & verification.

DU Bytes 7-32 (or optionally up to 244 bytes) contain DP-Slave specific

diagnostic information structured in blocks according to format type: device-

related, identifier-related, and channel-related.

Diag_Data Response Telegram DU Byte 7-X – Ext_Diag_Data

Bit DIAGNOSTIC

0-7

Ext_Diag_Data (see formats below, refer to your model

specifications for extended diagnostic data).

Ext_Diag_Data - Application Specific Diagnostics

The master can store user-related diagnostics in the following three

different formats:

device related

identifier related

, and

channel related

Device-Related Diagnostic

This information is device-related and can be coded in any form. It can

be used to indicate general diagnostic information such as: over-

temperature, under-voltage, over-voltage, etc.

Device Related Diagnostic Byte 1 of X – Header Byte

76543210

00XXXXXX

Bits 7,6 = 00 Bits 5-0 = Block Length in bytes including header byte 2

to header byte 63.

Device Related Diagnostic Byte 2 of X – Diagnostic Field Byte(s)

76543210

XXXXXXXX

Diagnostic coding is device-specific and can be coded as desired.

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 37 38

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