Iec pas 62953 2015

This stan ard defines in an a stract way the external y visible service provided by the Typ 2 fieldbu data-l n layer in terms of a the primitive action an events of the service; b the p

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Ce t re:c c@ie c

In u trial commu ication network – Fieldbu sp cification – Part 3-2 : Data-l n

layer service def i ition – Typ 2 elements 6

In u trial commu ication network – Fieldbu sp cification – Part 4-2 : Data-l n

layer protocol sp cification – Typ 2 elements 3

In u trial commu ication network – Fieldbu sp cif i ation – Part 5-2 : Ap lcation

layer service definition – Typ 2 elements 9

In u trial commu ication network – Fieldbu sp cification – Part 6-2 : Ap lcation

layer protocol sp cification – Typ 2 elements 15

CPF2 input for IEC 617 4-2: In u trial commu ication network – Profies – Part 2:

Ad itional fieldbu profi es for re l-time network b sed on ISO/IEC 8 0 -3 2 0

INDUSTRIA L COMMUNICA TION NETWORKS – FIELDBUS

SPECIFICA TIONS AND PROFILES – A DS-NET

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A PAS is a tec nical specification not fulfi in the req irements for a stan ard, but made

avai a le to the publ c

IEC PAS 6 9 3 has b en proces ed by s bcommit e 6 C: In u trial network , of IEC

tec nical commite 6 : In u trial-proces me s rement, control an automation

Fol owin publcation of this PAS, whic is a pre-stan ard publ cation, the tec nical commite

or s bcommite con erned may tran form it into an International Stan ard

as wel as IEC 617 4-2

The intention is to make this tec nical content avai a le immediately, whi e a cor esp n in

new work item pro osal (NP) has b en lau c ed If the NP is ac e ted, this contents wi b

in lu ed in the next edition of the IEC 61 5 series an of IEC 617 4-2

This PAS contain the relevant ADS-net (Typ 2 ) elements for the DL an AL services an

protocols an inf ormation with referen es to:

In u trial commu ication network – Fieldbu sp cification – Part 4-2 : Data-ln layer

protocol sp cif i ation – Typ 2 elements

In u trial commu ication network – Fieldbu sp cif i ation – Part 5-2 : Ap l cation layer

service def i ition – Typ 2 elements

In u trial commu ication network – Fieldbu sp cification – Part 6-2 : Ap l cation layer

protocol sp cif i ation – Typ 2 elements

CPF2 input f or IEC 617 4-2: In u trial commu ication network – Profi es – Part 2:

Ad itional fieldbu prof iles for re l-time network b sed on ISO/IEC 8 0 -3

1 Sco e 9

1.1 General 9

1.2 Sp cif i ation 9

1.3 Conforman e 9

2 Normative ref eren es 10 3 Terms, def i ition , s mb ls an a breviation 10 3.1 Ref eren e model terms an definition 1

3.1.1 DL-ad res [ISO/IEC 7 9 -3] 1

3.1.2 DL-ad res -ma pin [ISO/IEC 7 9 -1] 1

3.1.3 cal ed-DL-ad res [ISO/IEC 7 9 -3] 1

3.1.4 cal n -DL-ad res [ISO/IEC 7 9 -3] 1

3.1.5 central zed multi-en -p int-con ection [ISO/IEC 7 9 -1] 1

3.1.6 DL-con ection [ISO/IEC 7 9 -1] 1

3.1.7 DL-con ection-en -p int [ISO/IEC 7 9 -1] 1

3.1.8 DL-con ection-en -p int-identifier [ISO/IEC 7 9 -1] 1

3.1.9 DL-con ection-mode tran mis ion [ISO/IEC 7 9 -1] 1

3.1.10 DL-con ectionles -mode tran mis ion [ISO/IEC 7 9 -1] 1

3.1.11 cor esp n ent (N)-entities [ISO/IEC 7 9 -1] 1

3.1.12 DL-d plex-tran mis ion [ISO/IEC 7 9 -1] 1

3.1.13 (N)-entity [ISO/IEC 7 9 -1] 1

3.1.14 DL-f aci ty [ISO/IEC 7 9 -1] 1

3.1.15 f low control [ISO/IEC 7 9 -1] 1

3.1.16 (N)-layer [ISO/IEC 7 9 -1] 1

3.1.17 layer management [ISO/IEC 7 9 -1] 12

3.1.18 DL-local-view [ISO/IEC 7 9 -3] 12

3.1.19 DL-name [ISO/IEC 7 9 -3] 12

3.1.20 namin -(ad res in )-domain [ISO/IEC 7 9 -3] 12

3.1.21 p er entities [ISO/IEC 7 9 -1] 12

3.1.22 primitive name [ISO/IEC 7 9 -3] 12

3.1.23 DL-protocol [ISO/IEC 7 9 -1] 12

3.1.24 DL-protocol-con ection-identifier [ISO/IEC 7 9 -1] 12

3.1.25 DL-protocol-data-u it [ISO/IEC 7 9 -1] 12

3.1.26 DL- elay [ISO/IEC 7 9 -1] 12

3.1.27 reset [ISO/IEC 7 9 -1] 12

3.1.28 resp n in -DL-ad res [ISO/IEC 7 9 -3] 12

3.1.29 routin [ISO/IEC 7 9 -1] 12

3.1.30 segmentin [ISO/IEC 7 9 -1] 12

3.1.31 (N)-service [ISO/IEC 7 9 -1] 12

3.1.32 (N)-service-ac es -p int [ISO/IEC 7 9 -1] 12

3.1.33 DL-service-ac es -p int-ad res [ISO/IEC 7 9 -3] 12

3.1.34 DL-service-con ection-identifier [ISO/IEC 7 9 -1] 12

3.1.35 DL-service-data-u it [ISO/IEC 7 9 -1] 12

3.1.36 DL-simplex-tran mis ion [ISO/IEC 7 9 -1] 12

3.1.37 DL-s bs stem [ISO/IEC 7 9 -1] 12

3.1.38 s stems-management [ISO/IEC 7 9 -1] 12

3.2.3 confirm (primitive); 12

3.2.4 del ver (primitive) 13

3.2.5 DL-con rmed-f aci ty 13

3.2.6 DL-f aci ty 13

3.2.7 DL-local-view 13

3.2.8 DL-man atory-aci ty 13

3.2.9 DL-non-con rmed- aci ty 13

3.2.10 DL-provider initiated- aci ty 13

3.2.11 DL-provider o tional- aci ty 13

3.2.12 DL-service-primitive; 13

3.2.13 DL-service-provider 13

3.2.14 DL-service-u er 13

3.2.15 DLS-u er o tional- aci ty 13

3.2.16 in ication (primitive); 13

3.2.17 multi-p er 13

3.2.18 req est (primitive); 13

3.2.19 req estor 13

3.2.20 resp n e (primitive); 13

3.2.21 s bmit (primitive) 13

3.2.22 s mmetrical service 13

3.3 Terms an def i ition 13

3.4 Symb ls an a breviation 16

3.5 Common con ention 17

3.6 Ad itional Typ 2 con ention 18

4 DL services an con e ts 18

4.1 Overview 18

4.2 Typ s of DLS 18

4.2.1 General 18

4.2.2 Primitive of the RCL commu ication an RT commu ication 18

4.3 Detai ed des ription of the RCL commu ication service 19

4.3.1 Seq en e of primitives 19

4.3.2 Tran mit / Receive DLSDU 19

4.4 Detai ed des ription of the RT commu ication service 21

4.4.1 Seq en e of primitives 21

4.4.2 Tran mit / Receive DLSDU 21

5 DL management services 2

5.1 General 2

5.2 F ci ties of the DLMS 2

5.3 Service of the DL-management 2

5.3.1 Overview 2

5.3.2 Reset 2

5.5.1 Reset 2

5.5.2 Set value 2

5.5.3 Get value 2

5.5.4 RCL sto 2

5.5.5 RCL start 2

5.5.6 Event 2

Biblogra h 3

Fig re 1 – Relation hips of DLSAPs, DLSAP-ad res es an group DL-ad res es 14 Fig re 2 – Seq en e diagram of RCL commu ication an RT commu ication services 19 Fig re 3 – Reset, Set value, an Get value services 2

Fig re 4 – Event service 2

Ta le 1 – Primitives an p rameters u ed on the RCL commu ication service 19 Ta le 2 – Tran mit DLSDU primitives an p rameters 2

Ta le 3 – Primitives an p rameters u ed on the RT commu ication service 21

Ta le 4 – Tran mit DLSDU primitives an p rameters 21

Ta le 5 – Tran mit DLSDU primitives an p rameters 2

Ta le 6 – DLM_Reset primitives an p rameters 2

Ta le 7 – DLM_Set primitives an p rameters 2

Ta le 8 – DLM_Get primitives an p rameters 2

Ta le 9 – DLM_RCL STOP primitives an p rameters 2

Ta le 10 – DLM_RCL START primitives an p rameters 2

Ta le 1 – DLM_RCL START primitives an p rameters 2

Ta le 12 – DLM_Event primitives an p rameters 2

Part 3-25: Data-l nk layer service definition –

Type 25 elements

This p rt of IEC PAS 6 9 3 provides common elements f or b sic time-critical mes agin

commu ication b twe n devices in an automation en ironment The term “ ime-critical” is

u ed to re resent the presen e of a time-win ow, within whic one or more sp cified action

are req ired to b completed with some defined level of certainty Fai ure to complete

sp cified action within the time win ow ris s f ai ure of the a pl cation req estin the

action , with at en ant ris to eq ipment, plant an p s ibly h man l fe

This stan ard defines in an a stract way the external y visible service provided by the Typ

2 fieldbu data-l n layer in terms of

a) the primitive action an events of the service;

b) the p rameters as ociated with e c primitive action an event, an the f orm whic they

take; an

c) the inter elation hip b twe n these action an events, an their val d seq en es

The purp se of this stan ard is to define the services provided to

• the Typ 2 fieldbu a pl cation layer at the b u dary b twe n the a plcation an d

ata-ln layers of the fieldbu ref eren e model;

• s stems management at the b u dary b twe n the data-l n layer an s stems

management of the fieldbu referen e model

1.2 Spe ific tions

The prin ip l o jective of this stan ard is to sp cify the c aracteristic of con e tual data-l n

layer services s ita le for time-critical commu ication , an th s s p lement the OSI Basic

Referen e Model in g idin the develo ment of data-ln protocols for time-critical

commu ication A secon ary o jective is to provide migration p th f om previou ly-existin

in u trial commu ications protocols

This sp cif i ation may b u ed as the b sis f or f ormal DL-Programmin -Interf aces

Nevertheles , it is not a formal programmin interf ace, an any s c interf ace wi ne d to

ad res implementation is ues not covered by this sp cif i ation, in lu in

a) the sizes an octet orderin of variou multi-octet service p rameters, an

b) the cor elation of p ired req est an confirm, or in ication an resp n e, primitives

1.3 Conf orma c

This stan ard do s not sp cify in ivid al implementation or prod cts, nor does it con train

are in isp n a le f or its a pl cation For dated ref eren es, only the edition cited a pl es For

u dated referen es, the latest edition of the referen ed doc ment (in lu in an

amen ments) a pl es

IEC PAS 6 9 3-4-2 , I ndustrial c mmu ic tion n tworks – F ield bus sp cific tions – Part

4-25: Dat a-link layer prot oc l sp cific t io – Type 25 eleme ts

IEC PAS 6 9 3-5-2 , I ndustrial c mmu ic t ion n tworks – Field bus sp cific tions – Part

5-25: Ap l i at ion l ay r servic definit io – Type 25 el eme ts

IEC PAS 6 9 3-6-2 , Industrial c mmu ic t ion n tworks – Fiel d bus sp cific tions – Part

6-25: Ap l i at ion lay r protoc l sp cific tion – Ty e 25 eleme ts

ISO/IEC 10 31, Information tec n l og – Op n Systems Interc n e t io – Basic Refere c

Mod el – Co ventions for th d efinition of OSI services

ISO/IEC 7 9 -1, I nformation tec n l og – Op n Systems Interc n e tion – Basic Refere c

Mod el Th Basic Model

ISO/IEC 7 9 -3, I nformation tec n l og – Op n Systems Interc n e tion – Basic Refere c

Mod el Naming a d ad dres ing

ISO/IEC 8 0 -3:2 0 , Information te h ol og – Tel ec mmu ic t ions a d information

exch n e b t we n systems – L c l a d metro ol ita are n t works – Sp cific re uireme ts –

Part 3: Carier se se mult iple a c s wit h c l lision dete t ion (CSMA/CD) a c s method a d

Ph sic l L y r sp cific t ions

ISO/IEC 10 31, Information tec n l og – Op n Systems I nterc n e tio – Basic Refere c

Mod el – Co ventions for th d efinition of OSI services

3 Terms, def initions, symbols and a breviations

For the purp ses of this doc ment, the f ol owin terms, def i ition , s mb ls, a breviation

an con ention a ply

3.1.1 DL-a dre s [ISO/IEC 7 9 -3]

cor esp n ent DL-entities (N= )

cor esp n ent Ph-entities (N=1)

3.1.19 DL-name [ISO/IEC 7 9 -3]

3.2 Servic conv ntion terms a d definition

This stan ard also makes u e of the f ol owin terms def i ed in ISO/IEC 10 31 as they a ply

to the data-l n layer:

3.2.1 a c ptor

3.2.2 a ymmetric l s rvic

3.2.3 confirm (primitive);

req estor.delver (primitive)

3.2.6 DL- a i ity

3.2.7 DL-loc l-view

3.2.8 DL-ma datory- a i ty

3.2.9 DL-non-conf irme -f aci ty

3.2.10 DL-provider-initiate -f aci ty

3.2.1 DL-provider-option l- a i ity

3.2.2 re pons (primitiv );

ac e tor.s bmit (primitive)

distin t DLSAP an is as ociated with a cor esp n in distin t DLSAP-ad res

3.3.6

DL-s gme t, l nk, loc l l nk

sin le DL-s bnetwork in whic an of the con ected DLEs may commu icate directly, without

an intervenin DL- elayin , whenever al of those DLEs that are p rticip tin in an in tan e

of commu ication are simultane u ly at entive to the DL-s bnetwork d rin the period(s) of

atempted commu ication

3.3.7

distin tive p int at whic DL-services are provided by a sin le DL-entity to a sin le hig er

layer entity

Note 1 to e try: This d f i itio , d riv d f rom ISO/IEC 7 9 - , is re e te h re to f aci tate u d rsta din of th

critic l distin tio b twe n DLSA s a d th ir DL-a dre s s

NOT 1 DLSA s a d PhSA s are d picte a o als s a nin th b u d ry b twe n two a ja e t la ers

NOT 2 DL-a dre s s are d picte a d sig atin smal g p (p ints of a c s ) in th DL p rtio of a DLSA

NOT 3 A sin le DL-e tity ma h v multiple DLSA -a dre s s a d gro p DL-a dre s s a s ciate with a

sin le DLSA

Figure 1 – Relations ips of DLSAPs, DLSAP-a dre s s a d group DL-a dre s s

3.3.8

DL(SAP)-a dre s

either an in ivid al DLSAP-ad res , desig atin a sin le DLSAP of a sin le DLS-u er, or a

group DL-ad res p tential y desig atin multiple DLSAPs, e c of a sin le DLS-u er

Note 1 to e try: This termin lo y is c o e b c u e ISO/IEC 7 9 -3 d e n t p rmit th u e of th term DLSA

-a dre s to d sig ate more th n a sin le DLSA at a sin le DLS-u er

Note 1 to e try: A sin le DL-e tity ma h v multiple DLSA -a dre s s a s ciate with a sin le DLSA

3.3.10

e te de l nk

DL-s bnetwork, con istin of the maximal set of l n s intercon ected by DL- elay , s arin a

sin le DL-name (DL-ad res ) sp ce, in whic an of the con ected DL-entities may

commu icate, one with another, either directly or with the as istan e of one or more of those

DL-ad res that p tential y desig ates more than one DLSAP within the exten ed l n

Note 1 to e try: A sin le DL-e tity ma h v multiple gro p DL-a dre s s a s ciate with a sin le DLSA A

sin le DL-e tity als ma h v a sin le gro p DL-a dre s a s ciate with more th n o e DLSA

3.3.13

inf ormation commu ic tion

ac cl c data commu ication f or low time-critical a pl cation

DL-service u er that acts as a recipient of DLS-u er data

Note 1 to e try: A DL-s rvic u er c n b c n ur e tly b th a s n in a d re eivin DLS-u er

3.3.16

ring control (RCL) commu ic tion

non- e l-time commu ication f or control an reconfig ration in typ 2 DL network u in

DL- Data-l n layer (as a pref i )

DLE DL-entity ( he local active in tan e of the data-l n layer)

Ph- Ph sical layer (as a prefix)

PhE Ph-entity ( he local active in tan e of the Phy ical layer)

RCLC RCL commu ication control

SCR Station con ition re ort (Typ 2 f rame typ )

The service model, service primitives, an time-seq en e diagrams u ed are entirely a stract

des ription ; they do not re resent a sp cif i ation for implementation

Service primitives, u ed to re resent service u er/service provider interaction (se

ISO/IEC 10 31), con ey p rameters that in icate information avai a le in the u er/provider

interaction

This stan ard u es a ta ular f ormat to des rib the comp nent p rameters of the DLS

primitives The p rameters that a ply to e c group of DLS primitives are set out in ta les

throu hout the remain er of this stan ard Eac ta le con ists of up to six column ,

containin the name of the service parameter, an a column e c for those primitives an

p rameter tran f er direction u ed by the DLS:

– the req est primitive’s input p rameters;

– the req est primitive’s output p rameters;

– the in ication primitive’s output p rameters;

– the resp n e primitive’s input p rameters;

– the con rm primitive’s output p rameters

NOT Th re u st, in ic tio , re p n e a d c n rm primitiv s are als k own a re u stor.s bmit,

a c ptor.d lv r, a c ptor.s bmit, a d re u stor.d lv r primitiv s,re p ctiv ly (s e ISO/IEC 10 31

One p rameter (or p rt of it is l sted in e c row of e c ta le Un er the a pro riate service

primitive column , a code is u ed to sp cify the typ of u age of the p rameter on the

primitive an p rameter direction sp cif ied in the column:

M – p rameter is man atory for the primitive;

U – p rameter is a u er o tion an may or may not b provided de en in on the

d namic u age of the DLS-u er When not provided, a def ault value f or the

p rameter is as umed;

C – p rameter is con itional up n other p rameters or up n the en ironment of the

(blan ) – p rameter is never present

Some entries are further q alf ied by items in brac ets These may b

a) a p rameter sp cific con traint

(=) in icates that the p rameter is semantical y eq ivalent to the p rameter in the

service primitive to its immediate lef t in the ta le;

b) an in ication that some note a pl es to the entry

(n) in icates that the folowin note n contain ad itional inf ormation p rtainin to the

p rameter an its u e

In an p rtic lar interace, not al p rameters ne d b expl citly stated Some may b

impl citly as ociated with the DLSAP at whic the primitive is is ued

In the diagrams whic i u trate these interaces, das ed l nes in icate cau e-an -ef fect or

time-seq en e relation hips, an wav lnes in icate that events are rou hly

re request primitive

This stan ard sp cifies the Typ 2 data-l n services f or the ISO/IEC 8 0 -3 b sed re l-time

Ethernet The Typ 2 services exten Ethernet ac ordin to the ISO/IEC 8 0 -3 stan ard

with mec anism to control f rame flow with IEEE 8 2.1Q VLAN The rin to ology s al b u e

in typ 2 network Typ 2 network controls the data traff i an without ne d time s arin

or node s n hronization

This stan ard sp cifies the data-l n services that are the exten ion p rt of the

ISO/IEC 8 0 -3 b sed data-l n layer

4.2 Type of DL

The DLS provides the fol owin service primitives for data tran mis ion an rece tion:

• RCL commu ication (f or the rin network control an recon g ration)

• RT commu ication (f or the c clc, control, an information commu ication)

The RCL commu ication controls an recon g res the Typ 2 network an it is non- e l

-time commu ication The RT commu ication has thre typ s of commu ication, c clc,

control, an information commu ication In c cl c commu ication, nodes tran mit p riodical y

the c cl c commu ication fames an it g arante s the re l-time commu ication amon al

nodes on Typ 2 network Control an Inf ormation commu ication are ac cl c commu ication

on Typ 2 network Control commu ication is u ed in hig time-critical ac clc

commu ication Information commu ication is u ed in low time-critical ac cl c commu ication

Control an inf ormation commu ication are non- e l-time commu ication

4.2.2 Primitiv of the RCL commu ic tion a d RT communic tion

The seq en e of primitives for the RCL commu ication an RT commu ication services are

s own in Fig re 2

NOT Th meth d b whic a c f primitiv is c relate with its c re p n in pre e in re primitiv is lo al

These RCL commu ication service primitives an the p rameters are s mmarized in Ta le 1,

the primitive sequen e is s own in Fig re 2

Table 1 – Primitiv s a d parameters us d

DL-RCL req est alows the DLS-u er to tran fer data for rin control an reconfig ration

4.3.2.2 Type of primitiv s a d th parameters of the Tra smit / Re eiv DLSDU

Ta le 2 in icates the p rameters of tran mit DLSDU service

DL-x x.cnf

DL -x x.n

DL PD

Parameter n me In ut Outp t Outp t

The PortNum p rameter in icates the p rt identification f or sen in an receivin DLSDU

DLE have thre typ s PortNum, A, B, an Both In the case of PortNum is “Both”, the node

tran mits the DLSDU to b th p rt A an p rt B When node receives DLSDU, the p rameter

in icatin the received p rt tels whether it is A or B

4.3.2.2.3 Frame pri

The Frame pri p rameter sp cif ies the priority with IEEE 8 2.1Q VLAN on Typ 2 network

In RCL commu ication service, this value is con tant in icatin the DLSDU for RCL

commu ication

4.3.2.2.4 RCL_type

The RCL typ p rameter sp cifies the f ame typ for the Typ 2 network rin control an

reconfig ration For rin network control, Typ 2 network has f ames of several typ s The

f rame typ s are distin uis ed by the f un tion an commu ication are

4.3.2.2.5 DLSDU

This p rameter sp cifies the DLS-u er data that is tran fer ed by the DLE

4.3.2.2.6 Statu

This p rameter sp cif ies the DLS-u er to determine whether the req ested service was

provided s c es ful y, or faied d e to a p rtic lar re son The p s ible value con eyed in

this p rameter is as fol ows:

a) “s c es ”;

b) “f ai ure”

The RT commu ication service primitives an the p rameters are s mmarized in Ta le 3, the

primitive seq en e is s own in Fig re 2

Table 3 – Primitiv s a d parameters u e on th RT commu ic tion s rvic

DL-RT req est alows the DLS-u er to tran fer data b sed on ISO/IEC 8 0 -3 In RT

commu ication, there are thre commu ication typ s: c cl c, control, an inf ormation

commu ication Typ 2 network distin uis es e c typ of commu ication by DLSDU

p rameters

4.4.2.2 Type of primitiv s a d th parameters of the Tra smit / Re eiv DLSDU

Ta le 4 in icates the p rameters of DLSDU tran mis ion service

Table 4 – Tra smit DL DU primitiv s a d parameters

the dedicated multicast ad res in icatin the c cl c commu ication.

4.4.2.2.2 S_ dd

The S_ d (Source ad res ) p rameter sp cif ies the DL-ad res of the publ s er DLE

4.4.2.2.3 Frame pri

The Frame pri p rameter sp cifies the priority with IEEE 8 2.1Q VLAN on Typ 2 network

This value dif fers amon commu ication typ s, whic are c cl c, control an information

DL-management organizes the initialzation, config ration, event an er or han ln b twe n

the DLMS-u er an the logical fu ction in the DLE The f olowin fu ction are provided to

the DLMS-u er:

a) Reset of the local DLE;

b) Req est f or an modification of the actual o eratin p rameters an of the cou ters of the

local DLE;

c) Notification of u exp cted events, er ors, an statu c an es, b th local an remote;

d) Req est f or identification an for the DLSAP config ration of the local DLE

The DLMS-u er uti zes this service to make DL-management to reset the DLE A reset is

eq ivalent to p wer on The DLMS-u er receives a confirmation there f

5.3.3 Set v lue

The DLMS-u er uti zes this service to as ig new values to the varia les of the DLE The

DLMS-u er receives confirmation that the sp cified varia les have b en set to the new

values

5.3.4 Get value

This service al ows the DLMS-u er to re d varia les of the DLE The resp n e of the DL

management return the actual value of the sp cified varia les

The DL-management services an their primitives are s mmarized in Ta le 5

Table 5 – Tra smit DL DU primitiv s a d parameters

RCL_In Pri RCL_In Port)

NOT Th meth d b whic a c f primitiv is c relate with its c re p n in pre e in re primitiv is lo al

The DML Reset req est primitive cau es DLMS to reset the DLE The DLE is as umed in the

“Of flne” statu , an the reset is car ied out in the same man er as in the “p wer on”

proced re; al the DLE varia les are cle red The DLMS u er receives the DLM_Reset

confirmation primitive alon with the statu of the res lt whether it was a s c es or a f ai ure

5.5.1.2 Type of primitiv s a d parameters of the Re et

Ta le 6 in icates the primitives an p rameters of the Reset service This is a local service

Table 6 – DLM_Re et primitiv s a d parameters

This service is u ed to as ig new values to the varia les of the DLE The DLMS-u er

receives con rmation that the sp cified varia les have b en set to the new values

5.5.2.2 Type of primitiv s a d parameters of the Set v lue

5.5.2.2.2 Variable-name

This p rameter sp cifies the varia le within the DLE whose value is set The selecta le

varia les an their p rmit ed values or value ran es are def i ed in the cor esp n in p rt of

IEC PAS 6 9 3-4-2

5.5.2.2.3 De ire -value

This p rameter sp cif ies the desired value for the selected varia le

5.5.2.2.4 DLM_ tatus

This p rameter alows the DLMS-u er to determine whether the req ested DLMS was

provided s c es ful y, or fai ed for the re son sp cif ied The value con eyed in this p rameter

is as f ol ows:

a) “OK – s c es – the varia le could b updated";

This service can b u ed to re d the value of a DLE varia le The resp n e of the DLMS

return the actual value of the sp cif ied varia le

5.5.3.2 Type of primitiv s a d parameters of the Set v lue

Ta le 8 in icates the primitives an p rameters of the Get value service This is a local

service

Table 8 – DLM_Get primitiv s a d parameters

5.5.3.2.2 Variable-name

This p rameter sp cifies the varia le within the DLE whose value is set The selecta le

varia les an their p rmit ed values or value ran es are def i ed in the cor esp n in p rt of

IEC PAS 6 9 3-4-2

5.5.3.2.3 Cur e t v lue

This p rameter is present when the statu p rameter in icates that the req ested service was

p rormed s c es f ul y This p rameter sp cifies the c r ent value of the selected varia le

5.5.3.2.4 DLM_ tatus

This p rameter alows the DLMS-u er to determine whether the req ested DLMS was

provided s c es ful y, or fai ed for the re son sp cified The value con eyed in this p rameter

is as fol ows:

a) “OK – s c es – the varia le could b re d";

b) “F i ure – the varia le do s not exist or could not b re d”;

c) "Faiure – in al d p rameters in the req est"

5.5.4 RCL stop

5.5.4.1 Fu ction

This service informs the DLMS-u er to sto the RCL f rames tran mis ion

Ta le 9 in icates the primitives and p rameters of the RCL sto service This is a local

This service is u ed to inf orm the DLMS-u er a out startin the RCL f ames

5.5.5.2 Type of primitiv s a d parameters of the RCL start

Parameter n me Outp t

Ov rview a d g id an e for th IEC 61 58 a d IEC 617 84 series

IEC 61 5 -2:2 14, Ind ustrial c mmu ic tion n tworks – Fiel db s sp cific tions – Part 2:

P hysic l l ayer sp cific t ion a d servic d efinitio

IEC PAS 6 9 3-4-2 , I ndustrial c mmu ic tion n tworks – F ield bus sp cific tions – Part

4-25: Dat a-link layer prot oc l sp cific t io – Type 25 eleme ts

IEC PAS 6 9 3-5-2 , I ndustrial c mmu ic t ion n tworks – Field bus sp cific tions – Part

5-25: Ap l i ation l ay r servic definit io – Type 25 el eme ts

IEC PAS 6 9 3-6-2 , Industrial c mmu ic t ion n tworks – Fiel d bus sp cific tions – Part

6-25: Ap l i at ion l ay r protoc l sp cific tion – Ty e 25 eleme ts

IEC 617 4-2:2 14, I nd ustrial c mmu ic t ion n t works – P rofiles – Part 2: Add ition l fieldb s

profil s for re l-time n t works b sed o ISO/IEC 8 0 -3

IEEE 8 2.1Q, IEEE St and ard for L c l a d metro ol itan are n tworks – Virtual Brid ged

L c l Are N etworks; available at < tt p:/www.iee org

ISO 15 4 -4:2 0 , Industrial a tomat ion systems a d inte ration – Op n systems a plc tion

int egration famework – P art 4: Refere c d escript ion for Et hern t -b sed c ntrol syst ems;

a ailabl e at < t tp:/www.iso.org

2 Normative ref eren es 3

3 Terms, def i ition , s mb ls an a breviation 3

3.1 Ref eren e model terms an definition 3

3.1.1 DL-ad res [ISO/IEC 7 9 -3] 3

3.1.2 DL-ad res -ma pin [ISO/IEC 7 9 -1] 3

3.1.3 cal ed-DL-ad res [ISO/IEC 7 9 -3] 3

3.1.4 cal n -DL-ad res [ISO/IEC 7 9 -3] 3

3.1.5 central zed multi-en -p int-con ection [ISO/IEC 7 9 -1] 3

3.1.24 DL-protocol-con ection-identifier [ISO/IEC 7 9 -1] 3

3.1.25 DL-protocol-data-u it [ISO/IEC 7 9 -1] 3

3.2.1 ac e tor 3

3.2.2 as mmetrical service 3

3.2.3 confirm (primitive); 3

3.2.4 del ver (primitive) 4

3.2.11 DL-provider o tional- aci ty 4

3.2.12 DL-service-primitive; 4

3.2.13 DL-service-provider 4

3.2.14 DL-service-u er 4

3.2.15 DLS-u er o tional- aci ty 4

3.2.16 in ication (primitive); 4

3.2.17 multi-p er 4

3.2.18 req est (primitive); 4

3.2.19 req estor 4

3.2.20 s bmit (primitive) 4

3.2.21 s mmetrical service 4

3.3 Terms an def i ition 4

3.4 Symb ls an a breviation 4

3.5 Common con ention 4

4.2.3 Priority control with VLAN 4

4.2.4 The maximum del very delay in Typ 2 network 4

4.2.5 Traff i control f or re l-time commu ication 4

4.3 Service as umed f om PhL 5

4.4 DL L yer arc itecture 5

4.5 L cal p rameters an varia les 51

4.5.1 Overview 51

4.5.2 Varia les, p rameter, cou ter an timer 5

5 General stru ture an en odin of PhPDUs an DLPDU an related elements of

proced re 5

5.1 Overview 5

5.2 Common MAC f rame stru ture, en odin an elements of proced re 5

5.2.1 MAC f rame stru ture 5

Fig re 1 – Relation hips of DLSAPs, DLSAP-ad res es an group DL-ad res es 41

Fig re 2 – Rin control in Typ 2 network 4

Fig re 3 – Commu ication ran es of Typ 2 f rames 4

Fig re 4 – Priority control with VLAN of Typ 2 network 4

Fig re 5 – The mec anism of tran mis ion delay in a node 4

Fig re 6 – The worst delay in Typ 2 network 5

Fig re 7 – Data-Lin layer internal arc itecture 51

Fig re 8 – Typ 2 fieldbu DLPDU f ame format 5

Fig re 9 – RCL f rame f ormat 5

Fig re 10 – State tran ition diagram of RHE_SM-A 6

Fig re 1 – State tran ition diagram of RHE_SM-B 6

Fig re 12 – The state diagram of RCLNode SM 6

Fig re 13 – The state diagram of RCLTR_SM 7

Fig re 14 – The state diagram of RTTR_SM 81

Ta le 5 – Characteristic of the f rame clas es 4

Ta le 6 – Data-l n layer comp nents 51

Ta le 7 – Destination ad res f ormat 5

Ta le 8 – VLAN tag format 5

Ta le 9 – Types an clas es of RCL fames 5

Ta le 10 – Stru ture of RCL he der 5

Ta le 1 – Clas field f ormat 5

Ta le 12 – Destination ad res field format 5

Ta le 13 –Source ad res field format 5

Ta le 14 – CMD f ield f ormat 5

Ta le 15 – The primitives an p rameters for DLS-u er interf ace 5

Ta le 16 – Parameters u ed with primitives ex han ed b twe n RCLC an DLS-u er 5

Ta le 17 – The primitives an p rameters for TRC inter ace 5

Ta le 18 – Parameters u ed with primitives ex han ed b twe n RCLC an TRC 6

Ta le 19 – The primitives an p rameters for DLM interf ace 6

Ta le 2 – Parameters u ed with primitives ex han ed b twe n RCLC an DLM 61

Ta le 21 – Tran ition of RHE_SM-A at RCL commu ication 6

Ta le 2 – Tran ition of RHE_SM-B at RCL commu ication 6

Ta le 2 – Tran ition of RCLNode SM at RCL commu ication 7

Ta le 2 – Tran ition of RCLTR_SM at RCL commu ication 7

Ta le 2 – RCLC fu ction ta le 7

Ta le 2 – The primitives an p rameters for DLS-u er interf ace 7

Ta le 2 – Parameters u ed with primitives ex han ed b twe n RTC an DLS-u er 8

Ta le 2 – The primitives an p rameters for TRC inter ace 8

Ta le 2 – Parameters u ed with primitives ex han ed b twe n RTC an TRC 8

Ta le 3 – The primitives an p rameters for DLM interf ace 81

Ta le 31 – Parameters u ed with primitives ex han ed b twe n RTC an DLM 81

Ta le 3 – Tran ition of RTTR_SM at RT commu ication 8

Ta le 3 – RTC fu ction ta le 8

Ta le 3 – The primitives an p rameters for DLM interf ace 8

Ta le 3 – Parameters u ed with primitives ex han ed b twe n TRC an DLM 8

Ta le 3 – Tran ition of TRC_SM 8

Ta le 3 – TRC fu ction ta le 8

Ta le 3 – Primitives ex han ed b twe n DLM an DLS-u er 8

Ta le 3 – Parameters u ed with primitives ex han ed b twe n DLM an DLS-u er 9

Ta le 4 – Tran ition of DLM_SM 91

Ta le 41 – DLM fu ction ta le 9

Part 4-25: Data-l nk layer protocol specification -

Type 25 elements

The data-l n layer provides b sic time-critical mes aging commu ication b twe n devices in

an automation en ironment

This protocol provides commu ication o p rtu ities to al p rticip tin data-ln entities

a) in a s n hronou ly-startin c cl c man er, ac ordin to a pre-esta ls ed s hed le, an

b) in a c clc or ac cl c as n hronou man er, as req ested eac c cle by e c of those

data-l n entities

Th s this protocol can b c aracterized as one whic provides c clc an ac cl c ac es

as n hronou ly but with a s n hronou restart of e c c cle

1.2 Spe ific tions

This stan ard sp cif ies

a) proced res for the timely tran f er of data an control inf ormation fom one data-l n u er

entity to a p er u er entity, an amon the data-ln entities formin the distributed

dataln service provider;

b) proced res for givin commu ication o p rtu ities to al p rticip tin DL-entities,

seq ential y an in a c cl c man er f or deterministic an s n hronized tran fer at c cl c

intervals up to one mi isecon ;

c) proced res f or givin commu ication o p rtu ities avai a le f or time-critical data

tran mis ion together with non-time-critical data tran mis ion without preju ice to the

time-critical data tran mis ion;

d) proced res f or givin c clc an ac cl c commu ication o p rtu ities f or time-critical data

tran mis ion with prioritized ac es ;

e) proced res for givin commu ication o p rtu ities b sed on stan ard ISO/IEC 8 0 -3

medium ac es control, with provision f or nodes to b ad ed or removed d rin normal

o eration;

f ) the stru ture of the f ieldbu DLPDUs u ed for the tran fer of data an control information

by the protocol of this stan ard, an their re resentation as ph sical interf ace data u its

1.3 Proc dure

The proced res are def i ed in terms of

a) the interaction b twe n p er DL-entities (DLEs) throu h the ex han e of f ieldbu

DLPDUs;

referen e models, an whic req ire the a i ty to intercon ect in an o en s stems

intercon ection en ironment

Prof iles provide a simple multi-atribute me n of s mmarizin an implementation’s

ca a i ties, an th s its a pl ca i ty to variou time-critical commu ication ne d

1.5 Conf orma c

This stan ard also sp cifies conf orman e req irements for s stems implementin these

proced res This stan ard do s not contain tests to demon trate compl an e with s c

requirements

The f ol owin doc ments, in whole or in p rt, are normatively ref eren ed in this doc ment an

are in isp n a le f or its a pl cation For dated ref eren es, only the edition cited a pl es For

u dated referen es, the latest edition of the referen ed doc ment (in lu in an

amen ments) a pl es

IEC PAS 6 9 3-3-2 , I ndustrial c mmu ic tion n tworks – F ield bus sp cific tions – Part

3-25: Dat a-link layer servic d efinitio – Type 25 el eme ts

IEC PAS 6 9 3-5-2 , I ndustrial c mmu ic t ion n tworks – Field bus sp cific tions – Part

5-25: Ap l i ation l ay r servic definit io – Type 25 el eme ts

IEC PAS 6 9 3-6-2 , Industrial c mmu ic t ion n tworks – Fiel d bus sp cific tions – Part

6-25: Ap l i at ion l ay r protoc l sp cific tion – Ty e 25 eleme ts

ISO/IEC 10 31, Information tec n l og – Op n Systems Interc n e t io – Basic Refere c

Mod el – Co ventions for th d efinit ion of OSI services

ISO/IEC 7 9 -1, I nformation tec n l og – Op n Systems Interc n e tion – Basic Refere c

Mod el Th Basic Model

ISO/IEC 7 9 -3, I nformation tec n l og – Op n Systems Interc n e tion – Basic Refere c

Mod el Naming a d ad dres in

ISO/IEC 8 0 -3:2 0 , I nformation te hn l og – Tel ec mmu ic tions a d informat ion

exch n e b twe n systems – L c l a d metro olita are n tworks – Sp cific re uireme ts –

Part 3: Car ier se se mult iple a c s wit h c l lision dete t ion (CSMA/CD) a c s meth d a d

Ph sic l L y r sp cific tions

ISO/IEC 10 31, I nformation tec n l og – Op n Systems I nterc n e tio – Basic Refere c

Mod el – Co v ntions for th d efinition of OSI services

IEEE 8 2.1D-2 0 , IEEE Stan ard f or L cal an metro ol tan are network – Media ac es

control (MAC) Brid es, avaia le at <htp:/ www.iee org>

IEEE 8 2.1Q-2 0 , IEEE Stan ard for L cal an metro ol tan are network – Virtual Brid ed

L cal Are Network , avaia le at <htp:/www.ie e.org>

an con ention a ply.

3.1 Refere c model terms a d def initions

This stan ard is b sed in p rt on the con e ts develo ed in ISO/IEC 7 9 -1 an

ISO/IEC 7 9 -3, an makes u e of the fol owin terms defined therein:

cor esp n ent DL-entities (N= )

cor esp n ent Ph-entities (N=1)

3.1.12 DL-duple - ra smis ion [ISO/IEC 7 9 -1]

3.1.19 DL-name [ISO/IEC 7 9 -3]

3.2 Servic conv ntion terms a d definition

This stan ard also makes u e of the f olowin terms def i ed in ISO/IEC 10 31 as they a ply

to the data-l n layer:

3.2.1 a c ptor

3.2.2 a ymmetric l s rvic

3.2.3 confirm (primitive);

req estor.del ver (primitive)