Спецификация протокола Profibus

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Current State Transition Next State

Event

\Exit Condition

=> Action Taken

CONNECTION-ESTABLISHED 34 CONNECTION-ESTABLISHED

unconfirmed Service.req <priority = false>

received from FMS user

\PDU length > max PDU sending low prio

=> Reject.ind to FMS user <reject code = 5>

CONNECTION-ESTABLISHED 35 CONNECTION-ESTABLISHED

unconfirmed Service.req <priority = false>

received from FMS user

\PDU length ≤ max PDU sending low prio

AND features supported test (Client) negative

=> Reject.ind to FMS user <reject code = 3>

CONNECTION-ESTABLISHED 36 CONNECTION-ESTABLISHED

unconfirmed Service.req <priority = true>

received from FMS user

\PDU length ≤ max PDU sending high prio

AND features supported test (Client) positive

=> unconfirmed Service_REQ_PDU

(DTA.req <priority = high>) to LLI

CONNECTION-ESTABLISHED 37 CONNECTION-ESTABLISHED

unconfirmed Service.req <priority = true>

received from FMS user

\PDU length > max PDU sending high prio

=> Reject.ind to FMS user <reject code = 5>

CONNECTION-ESTABLISHED 38 CONNECTION-ESTABLISHED

unconfirmed Service.req <priority = true>

received from FMS user

\PDU length ≤ max PDU sending high prio

AND features supported test (Client) negative

=> Reject.ind to FMS user <reject code = 3>

CONNECTION-ESTABLISHED 39 CONNECTION-NOT-ESTABLISHED

Abort.req received from FMS user

=> ABT.req to LLI <reason code as given by user>

reset CREF

CONNECTION-ESTABLISHED 40 CONNECTION-NOT-ESTABLISHED

faulty, unknown or not allowed service

primitive received from FMS user

=> ABT.req to LLI <reason code = ABT_RC2>

Abort.ind to FMS user <reason code = ABT_RC2>

reset CREF

CONNECTION-ESTABLISHED 41 CONNECTION-ESTABLISHED

confirmed Service_REQ_PDU (DTC.ind) from LLI

\PDU length ≤ max PDU receiving low prio

AND OSCS < max outstanding services server

AND invoke ID not existent

AND features supported test (Server) positive

=> confirmed Service.ind to FMS user

OSCS := OSCS + 1

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Current State Transition Next State

Event

\Exit Condition

=> Action Taken

CONNECTION-ESTABLISHED 42 CONNECTION-NOT-ESTABLISHED

confirmed Service_REQ_PDU (DTC.ind) from LLI

\PDU length > max PDU receiving low prio

=> ABT.req to LLI <reason code = ABT_RC6>

Abort.ind to FMS user <reason code = ABT_RC6>

reset CREF

CONNECTION-ESTABLISHED 43 CONNECTION-NOT-ESTABLISHED

confirmed Service_REQ_PDU (DTC.ind) from LLI

\PDU length ≤ max PDU receiving low prio

AND OSCS ≥ max outstanding services server

=> ABT.req to LLI <reason code = ABT_RC9>

Abort.ind to FMS user <reason code = ABT_RC9>

reset CREF

CONNECTION-ESTABLISHED 44 CONNECTION-NOT-ESTABLISHED

confirmed Service_REQ_PDU (DTC.ind) from LLI

\PDU length ≤ max PDU receiving low prio

AND OSCS < max outstanding services server

AND invoke ID already existent

=> ABT.req to LLI <reason code = ABT_RC12>

Abort.ind to FMS <reason code = ABT_RC12>

reset CREF

CONNECTION-ESTABLISHED 45 CONNECTION-NOT-ESTABLISHED

confirmed Service_REQ_PDU (DTC.ind) from LLI

\PDU length ≤ max PDU receiving low prio

AND OSCS < max outstanding services server

AND invoke ID not existent

AND features supported test (Server) negative

=> ABT.req to LLI <reason code = ABT_RC7>

Abort.ind to FMS user <reason code = ABT_RC7>

reset CREF

CONNECTION-ESTABLISHED 46 CONNECTION-ESTABLISHED

unconfirmed Service_REQ_PDU <priority = low>

(DTA.ind) from LLI

\PDU length ≤ max PDU receiving low prio

AND features supported test (Server) positive

=> unconfirmed Service.ind <priority = false>

to FMS user

CONNECTION-ESTABLISHED 47 CONNECTION-NOT-ESTABLISHED

unconfirmed Service_REQ_PDU <priority = low>

(DTA.ind) from LLI

\PDU length > max PDU receiving low prio

=> ABT.req to LLI <reason code = ABT_RC6>

Abort.ind to FMS user <reason code = ABT_RC6>

reset CREF

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Current State Transition Next State

Event

\Exit Condition

=> Action Taken

CONNECTION-ESTABLISHED 48 CONNECTION-NOT-ESTABLISHED

unconfirmed Service_REQ_PDU <priority = low>

(DTA.ind) from LLI

\PDU length ≤ max PDU receiving low prio

AND features supported test (Server) negative

=> ABT.req to LLI <reason code = ABT_RC7>

Abort.ind to FMS user <reason code = ABT_RC7>

reset CREF

CONNECTION-ESTABLISHED 49 CONNECTION-ESTABLISHED

unconfirmed Service_REQ_PDU <priority = high>

(DTA.ind) from LLI

\PDU length ≤ max PDU receiving high prio

AND features supported test (Server) positive

=> unconfirmed Service.ind <priority = true> to FMS user

CONNECTION-ESTABLISHED 50 CONNECTION-NOT-ESTABLISHED

unconfirmed Service_REQ_PDU <priority = high>

(DTA.ind) from LLI

\PDU length > max PDU receiving high prio

=> ABT.req to LLI <reason code = ABT_RC6>

Abort.ind to FMS user <reason code = ABT_RC6>

reset CREF

CONNECTION-ESTABLISHED 51 CONNECTION-NOT-ESTABLISHED

unconfirmed Service_REQ_PDU <priority = high>

(DTA.ind) from LLI

\PDU length ≤ max PDU receiving high prio

AND features supported test (Server) negative

=> ABT.req to LLI <reason code = ABT_RC7>

Abort.ind to FMS user <reason code = ABT_RC7>

reset CREF

CONNECTION-ESTABLISHED 52 CONNECTION-NOT-ESTABLISHED

ABT.ind from LLI received

=> Abort.ind to FMS user <reason code out of ABT.ind>

reset CREF

CONNECTION-ESTABLISHED 53 CONNECTION-NOT-ESTABLISHED

INITIATE_REQ_PDU (ASS.ind) or INITIATE_RES_PDU (ASS.con)

from LLI

=> ABT.req to LLI <reason code = ABT_RC10>

Abort.ind to FMS user <reason code = ABT_RC10>

reset CREF

CONNECTION-ESTABLISHED 54 CONNECTION-NOT-ESTABLISHED

faulty or unknown service primitive from LLI received

=> ABT.req to LLI <reason code = ABT_RC5>

Abort.ind to FMS user <reason code = ABT_RC5>

reset CREF

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Current State Transition Next State

Event

\Exit Condition

=> Action Taken

CONNECTION-ESTABLISHED 55 CONNECTION-NOT-ESTABLISHED

not allowed LLI service primitive received from LLI

=> ABT.req to LLI <reason code = ABT_RC4>

Abort.ind to FMS user <reason code = ABT_RC4>

reset CREF

CONNECTION-ESTABLISHED 56 CONNECTION-NOT-ESTABLISHED

not allowed, unknown or faulty FMS PDU received from LLI

=> ABT.req to LLI <reason code = ABT_RC3>

Abort.ind to FMS user <reason code = ABT_RC3>

reset CREF

CONNECTION-ESTABLISHED 57 CONNECTION-ESTABLISHED

confirmed Service.res (+) received from FMS user

\Invoke ID existent as server

AND service out of .res identical with

service out of .ind

AND PDU length ≤ max PDU sending low prio

=> confirmed Service_RES_PDU with DTC.res to LLI

OSCS := OSCS - 1

CONNECTION-ESTABLISHED 68 CONNECTION-ESTABLISHED

confirmed Service.res (-) received from FMS user

\Invoke ID existent as server

AND service out of .res identical with

service out of .ind

AND PDU length ≤ max PDU sending low prio

=> confirmed Error_PDU with DTC.res to LLI

OSCS := OSCS - 1

CONNECTION-ESTABLISHED 58 CONNECTION-NOT-ESTABLISHED

confirmed Service.res received from FMS user

\Invoke ID not existent as server

=> ABT.req to LLI <reason code = ABT_RC8>

Abort.ind to FMS user <reason code = ABT_RC8>

reset CREF

CONNECTION-ESTABLISHED 59 CONNECTION-NOT-ESTABLISHED

confirmed Service.res received from FMS user

\Invoke ID existent as server

AND service out of .res not identical with

service out of .ind

=> ABT.req to LLI <reason code = ABT_RC11>

Abort.ind to FMS user <reason code = ABT_RC11>

reset CREF

CONNECTION-ESTABLISHED 60 CONNECTION-ESTABLISHED

confirmed Service.res received from FMS user

\Invoke ID existent as server

AND service out of .res identical with

Service out of .ind

AND PDU length > max PDU sending low prio

=> REJECT_PDU with DTC.res to LLI <reject code = 5>

OSCS := OSCS - 1

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Current State Transition Next State

Event

\Exit Condition

=> Action Taken

CONNECTION-ESTABLISHED 61 CONNECTION-ESTABLISHED

confirmed Service_RES_PDU or confirmed Error_PDU (DTC.con)from LLI

\PDU length ≤ max PDU receiving low prio

AND invoke ID existent as client

AND service out of .con identical with

service out of .req

=> confirmed Service.con to FMS user, OSCC := OSCC - 1

CONNECTION-ESTABLISHED 62 CONNECTION-NOT-ESTABLISHED

confirmed Service_RES_PDU or confirmed Error_PDU (DTC.con) from LLI

\PDU length > max PDU receiving low prio

=> ABT.req to LLI <reason code = ABT_RC6>

Abort.ind to FMS user <reason code = ABT_RC6>

reset CREF

CONNECTION-ESTABLISHED 63 CONNECTION-NOT-ESTABLISHED

confirmed Service_RES_PDU or confirmed Error_PDU (DTC.con) from LLI

\PDU length ≤ max PDU receiving low prio

AND invoke ID not existent as client

=> ABT.req to LLI <reason code = ABT_RC8>

Abort.ind to FMS user <reason code = ABT_RC8>

reset CREF

CONNECTION-ESTABLISHED 67 CONNECTION-NOT-ESTABLISHED

confirmed Service_RES_PDU or confirmed Error_PDU (DTC.con) from LLI

\PDU length ≤ max PDU receiving low prio

AND invoke ID existent as client

AND service out of .con not identical with

service out of .req

=> ABT.req to LLI <reason code = ABT RC11>

Abort.ind to FMS user <reason code = ABT RC11>

Reset CREF

CONNECTION-ESTABLISHED 64 CONNECTION-ESTABLISHED

REJECT_PDU (DTC.con) from LLI

\Original invoke ID existent as client

AND (<reject code = 5>

OR <reject code = 0>)

=> Reject.ind to FMS user <reject code = 5>

OSCC := OSCC - 1

CONNECTION-ESTABLISHED 65 CONNECTION-NOT-ESTABLISHED

REJECT_PDU (DTC.con) from LLI

\Original invoke ID not existent as client

=> ABT.req to LLI <reason code = ABT_RC8>

Abort.ind to FMS user <reason code = ABT_RC8>

reset CREF

CONNECTION-ESTABLISHED 66 CONNECTION-NOT-ESTABLISHED

REJECT_PDU (DTC.con) from LLI

\Original invoke ID existent as client

AND (<reject code unequal 5>

AND <reject code unequal 0>)

=> ABT.req to LLI <reason code = ABT_RC3>

Abort.ind to FMS user <reason code = ABT_RC3>

reset CREF

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4.4.7 State Machine for connectionless Communication Relationships

4.4.7.1 State Machine in the Client

State Machine Description

CONNECTIONLESS-CLIENT

The communication relationship is ready for operation.

Only an unconfirmed service.req primitive is permitted, all other services shall

be rejected or ignored.

+-------------------------+

! CONNECTIONLESS-CLIENT !

+-------------------------+

! ^

+----------+ 1-9

Figure 45. State Machine

4.4.7.1.1 State Transitions

Current State Transition Next State

Event

\Exit Condition

=> Action Taken

CONNECTIONLESS-CLIENT 1 CONNECTIONLESS-CLIENT

unconfirmed Service.req <priority = false)

received from FMS user

\PDU length ≤ max PDU sending low prio

AND features supported test (Client) positive

=> unconfirmed Service_REQ_PDU

(DTU.req <priority = low>) to LLI

CONNECTIONLESS-CLIENT 2 CONNECTIONLESS-CLIENT

unconfirmed Service.req <priority = false)

received from FMS user

\PDU length > max PDU sending low prio

=> Reject.ind to FMS user <reject code = 5>

CONNECTIONLESS-CLIENT 3 CONNECTIONLESS-CLIENT

unconfirmed Service.req <priority = false)

received from FMS user

\PDU length ≤ max PDU sending low prio

AND features supported test (Client) negative

=> Reject.ind to FMS user <reject code = 4>

CONNECTIONLESS-CLIENT 4 CONNECTIONLESS-CLIENT

unconfirmed Service.req <priority = true)

received from FMS user

\PDU length ≤ max PDU sending high prio

AND features supported test (Client) positive

=> unconfirmed Service_REQ_PDU

(DTU.req <priority = high>) to LLI

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Current State Transition Next State

Event

\Exit Condition

=> Action Taken

CONNECTIONLESS-CLIENT 5 CONNECTIONLESS-CLIENT

unconfirmed Service.req <priority = true)

received from FMS user

\PDU length > max PDU sending high prio

=> Reject.ind to FMS user <reject code = 5>

CONNECTIONLESS-CLIENT 6 CONNECTIONLESS-CLIENT

unconfirmed Service.req <priority = true>

received from FMS user

\PDU length ≤ max PDU sending high prio

AND features supported test (Client) negative

=> Reject.ind to FMS user <reject code = 4>

CONNECTIONLESS-CLIENT 7 CONNECTIONLESS-CLIENT

confirmed Service.req received from FMS user

=> Reject.ind to FMS user <reject code = 4>

CONNECTIONLESS-CLIENT 8 CONNECTIONLESS-CLIENT

not allowed, unknown or faulty service primitive

received from FMS user

=> Reject.ind to FMS user <reject code = 6>

CONNECTIONLESS-CLIENT 9 CONNECTIONLESS-CLIENT

LLI service primitive received

=> ignore

4.4.7.2 State Machine in the Server

4.4.7.2.1 State Machine Description

CONNECTIONLESS-SERVER

The communication relationship is ready for operation.

Only DTU.ind from LLI is permitted, other services shall be rejected or ignored.

+-------------------------+

! CONNECTIONLESS-SERVER !

+-------------------------+

! ^

+----------+ 1-8

Figure 46. State Machine

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State Transitions

Current State Transition Next State

Event

\Exit Condition

=> Action Taken

CONNECTIONLESS-SERVER 1 CONNECTIONLESS-SERVER

unconfirmed Service_REQ_PDU (DTU.ind <priority = low>)

from LLI

\PDU length ≤ max PDU receiving low prio

AND features supported test positive

=> unconfirmed Service.ind <priority = false> to FMS user

CONNECTIONLESS-SERVER 2 CONNECTIONLESS-SERVER

unconfirmed Service_REQ_PDU (DTU.ind <priority = low>)

from LLI

\PDU length > max PDU receiving low prio

=> ignore

CONNECTIONLESS-SERVER 3 CONNECTIONLESS-SERVER

unconfirmed Service_REQ_PDU (DTU.ind <priority = low>)

from LLI

\PDU length ≤ max PDU receiving low prio

AND features supported test negative

=> ignore

CONNECTIONLESS-SERVER 4 CONNECTIONLESS-SERVER

unconfirmed Service_REQ_PDU

(DTU.ind <priority = high>) from LLI

\PDU length ≤ max PDU receiving high prio

AND features supported test positive

=> unconfirmed Service.ind <priority = true> to FMS user

CONNECTIONLESS-SERVER 5 CONNECTIONLESS-SERVER

unconfirmed Service_REQ_PDU

(DTU.ind <priority = high>) from LLI

\PDU length > max PDU receiving high prio

=> ignore

CONNECTIONLESS-SERVER 6 CONNECTIONLESS-SERVER

unconfirmed Service_REQ_PDU

(DTU.ind <priority = high>) from LLI

\PDU length ≤ max PDU receiving high prio

AND features supported test negative

=> ignore

CONNECTIONLESS-SERVER 7 CONNECTIONLESS-SERVER

not allowed, unknown or faulty LLI service primitive

or

not allowed, unknown or faulty FMS PDU received

=> ignore

CONNECTIONLESS-SERVER 8 CONNECTIONLESS-SERVER

service primitive received from FMS user

=> Reject.ind to FMS user <reject code = 6>

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4.5 Domain Management

4.5.1 Model Description

A Domain is a part of memory. It may contain programs or data. The Domain shall

be of data type "octet string". The maximum number of octets of a Domain shall

be defined in the Object Description. Only one Download service or one Upload

service, but not both, may operate on a Domain at any one time.

The following services operate on Domain Objects:

+--------------------+

- OD Services -------------------->! Object Description !

- InitiateDownloadSequence \ ! Domain !

- DownloadSegment : ! !

- TerminateDownloadSequence : ! +--------------+ !

- InitiateUploadSequence >------------>! Domain ! !

- UploadSegment : ! +--------------+ !

- TerminateUploadSequence : +--------------------+

- RequestDomainDownload :

- RequestDomainUpload /

Figure 47. Domain Services

4.5.2 The Domain Object

4.5.2.1 Attributes

Object: Domain

Key Attribute: Index

Key Attribute: Domain Name

Attribute: Max Octets

Attribute: Password

Attribute: Access Groups

Attribute: Access Rights

Attribute: Local Address

Attribute: Domain State

Attribute: Upload State

Attribute: Counter

Attribute: Extension

Index

Logical address of the object in OD.

Domain Name

This attribute specifies the symbolic name of the Domain. Existence and length

are defined in the OD Object Description.

Max Octets

This attribute specifies the max. number of octets of the Domain.

Password

This attribute shall specify the password for the access rights.

Access Groups

This attribute shall specify the object's membership in specific access groups.

The object is member of an access group if the corresponding bit is set.

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Table 17. Access Groups for a Domain

+-----+----------------+

! Bit ! Meaning !

+-----+----------------+

! 7 ! Access Group 1 !

! 6 ! Access Group 2 !

! 5 ! Access Group 3 !

! 4 ! Access Group 4 !

! 3 ! Access Group 5 !

! 2 ! Access Group 6 !

! 1 ! Access Group 7 !

! 0 ! Access Group 8 !

+-----+----------------+

Access Rights

This attribute shall specify the rights to access the object. The respective ac-

cess is allowed if the corresponding bit is set.

Table 18. Access Rights for Domains

+-----+------+--------------------------------------------------+

! Bit ! Name ! Meaning !

+-----+------+--------------------------------------------------+

! 7 ! R ! Right to Read the registered Password !

! 6 ! W ! Right to Write the registered Password !

! 5 ! U ! Right to Use in a PI for the registered Password !

! 3 ! Rg ! Right to Read for Access Groups !

! 2 ! Wg ! Right to Write for Access Groups !

! 1 ! Ug ! Right to Use in a PI for Access Groups !

! 15 ! Ra ! Right to Read for all Communication Partners !

! 14 ! Wa ! Right to Write for all Communication Partners !

! 13 ! Ua ! Right to Use in a PI for all Communication !

! ! ! Partners !

+-----+------+--------------------------------------------------+

Local Address

This attribute is a system specific reference to the real object. It may be used

internally for addressing the object. If a reference of this kind is not ap-

plied, the Local Address attribute shall have the value FFFFFFFF hex.

Domain State

This attribute shall specify the state of the Domain Object.

1 <=> EXISTENT 2 <=> LOADING 3 <=> INCOMPLETE

4 <=> COMPLETE 5 <=> READY 6 <=> IN-USE

Upload State

This attribute shall specify the state of the State Machine for Upload of the

Domain.

0 <=> NON-EXISTENT

1 <=> UPLOADING

2 <=> UPLOADED

Counter

This attribute shall specify the number of Program Invocations which currently

use this Domain. The Program Invocation Management maintains this Counter, while

the Domain Management only interprets the Counter. If the Counter attribute has

a value greater than 0, the Domain is in use and may not be overwritten with a

Download service.

Extension

This attribute contains profile specific information.

Спецификация протокола Profibus

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