Спецификация протокола Profibus
Подождите немного. Документ загружается.
Page 231
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
4.5.2.2 Object Description of the OD on Transmission
+-------+---------+--------+----------+---------+---------+//
! Index ! Object ! Max ! Password ! Access ! Access !
! ! code ! Octets ! ! Groups ! Rights !
+-------+---------+--------+----------+---------+---------+
! 123 ! Domain ! 513 ! 12 ! ! R W U !
+-------+---------+--------+----------+---------+---------+//
//+----------+--------+---------+---------+---------+-----------+
! Local ! Domain ! Upload ! Counter ! Domain ! Extension !
! Address ! State ! State ! ! Name ! !
+----------+--------+---------+---------+---------+-----------+
! B49A hex ! ! ! ! Volz ! !
//+----------+--------+---------+---------+---------+-----------+
Figure 48. Structure of an Entry in the S-OD
Objektcode
Identification of a Domain Object. This identification shall be transmitted in
the GetOD service and in the PutOD service in addition to the object attributes.
4.5.3 Download Services
The Download Services shall be used to load data from the client into the
server's Domain.
4.5.3.1 InitiateDownloadSequence
The InitiateDownloadSequence service shall be used to begin the loading of the
Domain whose Index or Domain Name is included in the service request.
Table 19. InitiateDownloadSequence
+---------------------------------+-----+-----+
! ! ! !
! Parameter Name !.req !.res !
! !.ind !.con !
+---------------------------------+-----+-----+
! Argument ! M ! !
! Access Specification ! M ! !
! Index ! S ! !
! Domain Name ! S ! !
! ! ! !
! Result(+) ! ! S !
! ! ! !
! Result(-) ! ! S !
! Error Type ! ! M !
+---------------------------------+-----+-----+
Argument
The argument shall convey the service specific parameters of the service re-
quest.
Access Specification
This parameter shall specify if the Index or the Domain Name is used to address
the object.
Index
This parameter shall specify the logical address of the Domain.
Page 232
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
Domain Name
This parameter shall specify the name of the Domain.
Result(+)
The Result(+) parameter shall indicate that the service was executed success-
fully.
Result(-)
The Result(-) parameter shall indicate that the service was not executed suc-
cessfully.
Error Type
This parameter shall provide the reason for failure.
4.5.3.2 DownloadSegment
The DownloadSegment service shall be used to transfer one data segment into the
server's Domain. The segment is transmitted in the service response.
Table 20. DownloadSegment
+---------------------------------+-----+-----+
! ! ! !
! Parameter Name !.req !.res !
! !.ind !.con !
+---------------------------------+-----+-----+
! Argument ! M ! !
! Access Specification ! M ! !
! Index ! S ! !
! Domain Name ! S ! !
! ! ! !
! Result(+) ! ! S !
! Load Data ! ! M !
! More Follows ! ! M !
! ! ! !
! Result(-) ! ! S !
! Error Type ! ! M !
+---------------------------------+-----+-----+
Argument
The argument shall convey the service specific parameters of the service re-
quest.
Access Specification
This parameter shall specify if the Index or the Domain Name is used to address
the object.
Index
This parameter shall specify the logical address of the Domain.
Domain Name
This parameter shall specify the name of the Domain.
Result(+)
The Result(+) parameter shall indicate that the requested service was executed
successfully.
Load Data
This parameter shall contain the data to be downloaded.
More Follows
Shall indicate whether or not any additional data remains to be transmitted.
Page 233
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
Result(-)
The Result(-) parameter shall indicate that the service request failed.
Error Type
This parameter shall provide the reason for failure.
4.5.3.3 TerminateDownloadSequence
The TerminateDownloadSequence service shall be used to finish the loading of the
Domain whose Index or Domain Name is included in the service request.
Table 21. TerminateDownloadSequence
+---------------------------------+-----+-----+
! ! ! !
! Parameter Name !.req !.res !
! !.ind !.con !
+---------------------------------+-----+-----+
! Argument ! M ! !
! Access Specification ! M ! !
! Index ! S ! !
! Domain Name ! S ! !
! Final Result ! M ! !
! ! ! !
! Result(+) ! ! S !
! ! ! !
! Result(-) ! ! S !
! Error Type ! ! M !
+---------------------------------+-----+-----+
Argument
The argument shall convey the service specific parameters of the service re-
quest.
Access Specification
This parameter shall specify if the Index or the Domain Name is used to address
the object.
Index
This parameter shall specify the logical address of the Domain.
Domain Name
This parameter shall specify the name of the Domain.
Final Result
This parameter shall inform the client whether or not the server successfully
finished the Download.
Result(+)
The Result(+) parameter shall indicate that the requested service has succeeded.
Result(-)
The Result(-) parameter shall indicate that the service request failed.
Error Type
This parameter shall provide the reason for failure.
Page 234
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
4.5.3.4 RequestDomainDownload
The RequestDomainDownload service shall be used by a server to request the cli-
ent to perform a Download into the Domain whose Index or Domain Name is included
in the service request.
The service response with Result(+) is not sent until the Download Sequence has
been completely finished.
Table 22. RequestDomainDownload
+---------------------------------+-----+-----+
! ! ! !
! Parameter Name !.req !.res !
! !.ind !.con !
+---------------------------------+-----+-----+
! Argument ! M ! !
! Access Specification ! M ! !
! Index ! S ! !
! Domain Name ! S ! !
! Additional Information ! U ! !
! ! ! !
! Result(+) ! ! S !
! ! ! !
! Result(-) ! ! S !
! Error Type ! ! M !
+---------------------------------+-----+-----+
Argument
The argument shall convey the service specific parameters of the service re-
quest.
Access Specification
This parameter shall specify if the Index or the Domain Name is used to address
the object.
Index
This parameter shall specify the logical address of the Domain.
Domain Name
This parameter shall specify the name of the Domain.
Additional Information
This parameter shall contain additional information on the Domain Name. It may
for example contain a file name. The correlation between Domain Name and file
name is a local matter and is the responsibility of the application.
Result(+)
The Result(+) parameter shall indicate that the requested service was executed
successfully.
Result(-)
The Result(-) parameter shall indicate that the service was not executed suc-
cessfully.
Error Type
This parameter shall provide the reason for failure.
Page 235
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
4.5.4 Upload Services
The Upload Services shall be used to transmit the data from the server's Domain
to the client.
4.5.4.1 InitiateUploadSequence
The InitiateUploadSequence service shall be used to begin the Upload of the Do-
main whose Index or Domain Name is included in the service request.
Table 23. InitiateUploadSequence
+---------------------------------+-----+-----+
! ! ! !
! Parameter Name !.req !.res !
! !.ind !.con !
+---------------------------------+-----+-----+
! Argument ! M ! !
! Access Specification ! M ! !
! Index ! S ! !
! Domain Name ! S ! !
! ! ! !
! Result(+) ! ! S !
! ! ! !
! Result(-) ! ! S !
! Error Type ! ! M !
+---------------------------------+-----+-----+
Argument
The argument shall convey the service specific parameters of the service re-
quest.
Access Specification
This parameter shall specify if the Index or the Domain Name is used to address
the object.
Index
This parameter shall specify the logical address of the Domain.
Domain Name
This parameter shall specify the name of the Domain.
Result(+)
The Result(+) parameter shall indicate that the requested service was executed
successfully.
Result(-)
The Result(-) parameter shall indicate that the service was not executed suc-
cessfully.
Error Type
This parameter shall provide the reason for failure.
Page 236
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
4.5.4.2 UploadSegment
The UploadSegment service shall be used to transfer one data segment of the
server's Domain to the client.
Table 24. UploadSegment
+---------------------------------+-----+-----+
! ! ! !
! Parameter Name !.req !.res !
! !.ind !.con !
+---------------------------------+-----+-----+
! Argument ! M ! !
! Access Specification ! M ! !
! Index ! S ! !
! Domain Name ! S ! !
! ! ! !
! Result(+) ! ! S !
! Load Data ! ! M !
! More Follows ! ! M !
! ! ! !
! Result(-) ! ! S !
! Error Type ! ! M !
+---------------------------------+-----+-----+
Argument
The argument shall convey the service specific parameters of the service re-
quest.
Access Specification
This parameter shall specify if the Index or the Domain Name is used to address
the object.
Index
This parameter shall specify the logical address of the Domain.
Domain Name
This parameter shall specify the name of the Domain.
Result(+)
The Result(+) parameter shall indicate that the requested service was executed
successfully.
Load Data
This parameter shall contain the data requested from the server's Domain.
More Follows
This parameter shall indicate whether or not any additional data remains to be
transmitted.
Result(-)
The Result(-) parameter shall indicate that the service was not executed suc-
cessfully.
Error Type
This parameter shall provide the reason for failure.
Page 237
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
4.5.4.3 TerminateUploadSequence
The TerminateUploadSequence service shall be used to finish the Upload Sequence.
Table 25. TerminateUploadSequence
+---------------------------------+-----+-----+
! ! ! !
! Parameter Name !.req !.res !
! !.ind !.con !
+---------------------------------+-----+-----+
! Argument ! M ! !
! Access Specification ! M ! !
! Index ! S ! !
! Domain Name ! S ! !
! ! ! !
! Result(+) ! ! S !
! ! ! !
! Result(-) ! ! S !
! Error Type ! ! M !
+---------------------------------+-----+-----+
Argument
The argument shall convey the service specific parameters of the service re-
quest.
Access Specification
This parameter shall specify if the Index or the Domain Name is used to address
the object.
Index
This parameter shall specify the logical address of the Domain.
Domain Name
This parameter shall specify the name of the Domain.
Result(+)
The Result(+) parameter shall indicate that the requested service was executed
successfully.
Result(-)
The Result(-) parameter shall indicate that the service was not executed suc-
cessfully.
Error Type
This parameter shall provide the reason for failure.
Page 238
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
4.5.4.4 RequestDomainUpload
The RequestDomainUpload service shall be used by a server to request that the
contents of the specified Domain be uploaded to the client. The service response
with Result(+) shall not be sent until the Upload Sequence has been completely
finished.
Table 26. RequestDomainUpload
+---------------------------------+-----+-----+
! ! ! !
! Parameter Name !.req !.res !
! !.ind !.con !
+---------------------------------+-----+-----+
! Argument ! M ! !
! Access Specification ! M ! !
! Index ! S ! !
! Domain Name ! S ! !
! Additional Information ! U ! !
! ! ! !
! Result(+) ! ! S !
! ! ! !
! Result(-) ! ! S !
! Error Type ! ! M !
+---------------------------------+-----+-----+
Argument
The argument shall convey the service specific parameters of the service re-
quest.
Access Specification
This parameter shall specify if the Index or the Domain Name is used to address
the object.
Index
This parameter shall specify the logical address of the Domain.
Domain Name
This parameter shall specify the name of the Domain.
Additional Information
This parameter shall contain additional information on the Domain Name. It may
for example contain a file name. The correlation between Domain Name and file
name is a local matter and is the responsibility of the application.
Result(+)
The Result(+) parameter shall indicate that the requested service was executed
successfully.
Result(-)
The Result(-) parameter shall indicate that the service was not executed suc-
cessfully.
Error Type
This parameter shall provide the reason for failure.
Page 239
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
4.5.5 State Machine for Download
4.5.5.1 State Machine Description
EXISTENT
The Domain exists, but the content is not defined.
LOADING
Download on the Domain is in progress.
INCOMPLETE
Download failed, the content is incomplete.
COMPLETE
The Domain content has been transmitted, but the Domain is not yet released for
use.
READY
The Domain is released for use.
IN-USE
The Domain is being used by a Program Invocation. Download is not allowed in
this state.
! Power Up,
! Domain content not stored in PROM
V
+--------------+
! EXISTENT !<-------------------------+
+--------------+ !
1 ! 2 ! ^ !
! +-+ !
V !
+--------------+ 6,7 !
+---->! LOADING !------------------------->+
! +--------------+ !
! 4 ! 3 ! ^ ! 5 +-------------+ 6,7 !
! ! +-+ +----->! INCOMPLETE !------>+
! V +-------------+ !
! +--------------+ 6,7,9 !
! ! COMPLETE !------------------------->+
! +--------------+
! 8 !
! V
! 1 +--------------+ Power Up,
+<----! READY !<--- Domain content stored in PROM
+--------------+
10 ! 2 ! ^ ^ 12
! +-+ !
V !
+--------------+
! IN-USE !
+--------------+
! 11,13 ^
+----------+
Figure 49. DomainDownload State Machine (Server)
Download and Upload shall not operate on the same Domain at the same time.
Page 240
PROFIBUS-Specification-Normative-Parts-5:1997
Copyright by PNO 1997 - all rights reserved
4.5.5.2 State Transitions
-----------------------------------------------------------------
Event
\Exit Condition
=> Action Taken
-----------------------------------------------------------------
1 InitiateDownloadSequence.ind
\state machine Upload in state NON-EXISTENT
=> .res(+)
2 InitiateDownloadSequence.ind
\state machine Upload not in state NON-EXISTENT
=> .res(-) object constraint conflict
3 DownloadSegment.con(+)
\more follows = true
4 DownloadSegment.con(+)
\more follows = false
5 DownloadSegment.con(-)
6 TerminateDownloadSequence.req
\final result = false
\.con(+/-)
7 Abort
8 TerminateDownloadSequence.req
\final result = true
\.con(+)
9 TerminateDownloadSequence.req
\final result = true
\.con(-)
See also State Transitions Program Invocation:
10 Counter increment (Start/Resume)
=> counter := 1
11 Counter increment (Start/Resume)
=> counter := counter +1
12 Counter decrement (Stop/Kill/End of Program/Program Stop)
\counter = 1
=> counter := 0
13 Counter decrement (Stop/Kill/End of Program/Program Stop)
\counter > 1
=> counter := counter -1
-----------------------------------------------------------------
4.5.6 State Machine for Upload
4.5.6.1 State Machine Description
NON-EXISTENT
The Domain exists, no Upload in progress.
UPLOADING
Upload on the Domain is in progress, Download is not allowed.
UPLOADED
The Domain content has been completely transmitted, but the TerminateUpload-
Sequence service is still to be executed.