Siemens SPC3 Specifications download pdf (Page 28)

Introduction To ProfiBus DP

__________________________________________________________________

_______________________________________________________________________________________

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

The master evaluates the diagnostic information to determine if the

parameterization and configuration info is correct. If no further diagnostic

service is required, the master proceeds to exchange data with the slave.

Diag_Data Request Diagnostics Telegram With Header

SD2 LE LEr SD DA SA FC DSAP SSAP FCS ED

68H X X 68H 8x 8x X 3CH (60) 3EH (62) X 16H

Request Diagnostics Response Telegram With Header

SD LE LEr SD DA SA FC DSAP SSAP DU FCS ED

68H X X 68H 8x 8x X 3EH

(62)

3CH

(60)

X.. X 16H

The diagnostic information of a DP slave consists of 6 bytes of standard

diagnostic information, plus any user-diagnostic information (slave specific).

A set bit (1) in a position means the linked definition has occurred. The

parameter Status can be tested to indicate the success or failure of the

Diag_Data function with possible values of: OK, DS, NA, RS, UE, NR, & RE.

Diag_Data Response Telegram DU Byte 1 – Station_status_1

Bit DIAGNOSTIC

0 Diag.Station_Non_Existent:

Set to 1 by the master if slave cannot be

reached over the line. Slave sets this bit to 0.

1 Diag.Station_Not_Ready:

Set by slave if slave is not ready for data

transfer.

2 Diag.Cfg_Fault:

Set by slave if it detects a mismatch in config data.

3Diag.Ext_Diag:

Set by slave to indicate a diagnostic entry is in the

slave-specific diagnostic area (see below).

4 Diag.Not_Supported

: Set by slave if requested function/service is not

supported.

5 Diag.Invalid_Slave_Response:

Slave sets this bit to 0. Set to 1 by the

master if it receives an implausible response from the slave.

6 Diag.Prm_Fault:

Set by slave if last parameter frame was faulty

(wrong parameterization, bad length, bad ident_number, etc.).

7 Diag.Master_Lock:

Set by a class 1 master to indicate slave has been

parameterized by another master (if address in DU byte 4 is not 255

and differs from its own address). Set to 0 by slave.

Diag_Data Response Telegram DU Byte 2 – Station_status_2

Bit DIAGNOSTIC

0Diag.Prm_Req

: Set by a slave if it needs to be parameterized and

cleared once parameterization is complete.

1 Diag.Stat_Diag:

Static diagnostics. Slave sets this bit to cause the

master to retrieve diagnostic information until this bit is cleared (the

slave sets it if it’s not able to provide user data).

Slave sets this bit to 1.

3Diag.WD_ON:

Set by slave to indicate Watchdog is active.

4 Diag.Freeze_Mode:

Set by slave after it has received the Freeze

control command.

5 Diag.Sync_Mode:

Set by slave after it has received a Sync command.

Reserved.

7 Diag.Deactivated:

Set by the master if slave has been marked inactive

within the slave parameter set and is removed from cyclic processing.

Slave sets this bit to 0.

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 37 38

Comments to this Manuals

No comments

Siemens SPC3 Specifications Page 28

Comments to this Manuals

Related products and manuals for Networking Siemens SPC3