Спецификация протокола Profibus
Подождите немного. Документ загружается.
Page 541
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
Open at the Master
Current State Transition Next State
Event
\Exit Condition
=> Action Taken
OPEN AB 19 ABT-SEND-PDU
1)
ASS_REQ_PDU received (SDA.ind(serv_class = low/high))
OR ASS_NRS_PDU received (SDA.ind(serv_class = low/high))
OR ASS_RES_PDU received (SDA.ind(serv_class = low/high))
OR DTU_REQ_PDU received (SDA.ind(serv_class = low/high))
\M-M
=> ABT.ind to LLI user <RC = ABT_RC3>
send ABT_REQ_PDU <RC = ABT_RC3> (SDA.req(low))
stop all timers, start T2, stop machines
OPEN AB 20 ABT-SEND-PDU
1)
IDLE_REQ_PDU received (SDA.ind(serv_class = high))
OR DTC_REQ_PDU received (SDA.ind(serv_class = high))
OR DTC_RES_PDU received (SDA.ind(serv_class = high))
\M-M
=> ABT.ind to LLI user <RC = ABT_RC8>
send ABT_REQ_PDU <RC = ABT_RC8> (SDA.req(low))
stop all timers, start T2, stop machines
OPEN AB 21 ABT-SEND-PDU
1)
ASS.req OR ASS.res OR DTU.req from LLI user
\M-M
=> ABT.ind to LLI user <RC = ABT_RC19, AD = code of the primitive>
send ABT_REQ_PDU <RC = ABT_RC9> (SDA.req(low))
LLI-Fault.ind <RC = LLI_FMA7_RC11>
stop all timers, start T2, stop machines
OPEN AB 22 ABT-SEND-PDU
1)
unknown LLI primitive
\M-M
=> ABT.ind to LLI user <RC = ABT_RC17>
send ABT_REQ_PDU <RC = ABT_RC9> (SDA.req(low))
LLI-Fault.ind <RC = LLI_FMA7_RC9>
stop all timers, start T2, stop machines
OPEN AB 23 ABT-SEND-PDU
1)
Layer 2 primitive AND NOT(SDA.ind OR SDA.con)
\M-M
=> ABT.ind to LLI user <RC = ABT_RC15, AD = code of the primitive>
send ABT_REQ_PDU <RC = ABT_RC9> (SDA.req(low))
LLI-Fault.ind <RC = LLI_FMA7_RC7, AD = code of the primitive>
stop all timers, start T2, stop machines
OPEN AB 24 ABT-UPDATE
1)
unknown or faulty LLI PDU received
\M-S
=> ABT.ind to LLI user <RC = ABT_RC4>
send ABT_REQ_PDU <RC = ABT_RC4> (S_UPDATE.req)
stop all timers, start T2, stop machines
1) see state diagram for connection release
Page 542
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
Open at the Master
Current State Transition Next State
Event
\Exit Condition
=> Action Taken
OPEN AB 25 ABT-UPDATE
1)
ASS_REQ_PDU OR ASS_NRS_PDU
OR ASS_RES_PDU OR DTC_REQ_PDU received
OR DTU_REQ_PDU OR DTC_REQ_PDU received
((C)SRD.con(L_status = DL/DH)/SRD.con(DL/DH))
\M-S
=> ABT.ind to LLI user <RC = ABT_RC3>
send ABT_REQ_PDU <RC = ABT_RC3> (S_UPDATE.req)
stop all timers, start T2, stop machines
OPEN AB 26 ABT-UPDATE
1)
IDLE_REQ_PDU OR DTC_RES_PDU received
((C)SRD.con(L_status = DH)/SRD.con(DH))
\M-S
=> ABT.ind to LLI user <RC = ABT_RC8>
send ABT_REQ_PDU <RC = ABT_RC8> (S_UPDATE.req)
stop all timers, start T2, stop machines
OPEN AB 27 ABT-UPDATE
1)
ASS.req OR ASS.res OR DTC.res OR DTU.req from LLI user
\M-S
=> ABT.ind to LLI user <RC = ABT_RC19, AD = code of the primitive>
send ABT_REQ_PDU <RC = ABT_RC9> (S_UPDATE.req)
LLI-Fault.ind <RC = LLI_FMA7_RC11>
stop all timers, start T2, stop machines
OPEN AB 28 ABT-UPDATE
1)
unknown LLI primitive
\M-S
=> ABT.ind to LLI user <RC = ABT_RC17>
send ABT_REQ_PDU <RC = ABT_RC9> (S_UPDATE.req)
LLI-Fault.ind <RC = LLI_FMA7_RC9>
stop all timers, start T2, stop machines
OPEN AB 29 ABT-UPDATE
1)
(Layer 2 primitive AND NOT ((C)SRD.con OR S_UPDATE.con))
\M-S
=> ABT.ind to LLI user <RC = ABT_RC15, AD = code of the primitive>
send ABT_REQ_PDU <RC = ABT_RC9> (S_UPDATE.req)
LLI-Fault.ind <RC = LLI_FMA7_RC7, AD = code of the primitive>
stop all timers, start T2, stop machines
OPEN DT 2 OPEN
receipt without data
((C)SRD.con(L_status = NR, update_status = LO))
\M-S
OPEN AB 30 CLOSED
error on sending (SDA.con(UE/RS/DS))
\M-M AND D
=> ABT.ind to LLI user <RC = UE/RS/DS, AD = ABT_AD4>
reset CREF
1) see state diagram for connection release
Page 543
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
Open at the Master
Current State Transition Next State
Event
\Exit Condition
=> Action Taken
OPEN AB 31 ABT-SAP-DEACTIVATE
1)
error on sending (SDA.con(UE/RS/DS))
\M-M AND ( I OR O )
=> ABT.ind to LLI user <RC = UE/RS/DS, AD = ABT_AD4>
stop all timers, start T2, stop machines
SAP_DEACT.req
OPEN AB 32 CLOSED
error on sending (SDA.con(LS/IV))
\M-M AND D
=> ABT.ind to LLI user <RC = LS/IV, AD = ABT_AD4>
LLI-Fault.ind <RC = LLI_FMA7_RC12, AD = LS/IV>
reset CREF
OPEN AB 33 ABT-SAP-DEACTIVATE
1)
error on sending (SDA.con(LS/IV))
\M-M AND ( I OR O )
=> ABT.ind to LLI user <RC = LS/IV, AD = ABT_AD4>
LLI-Fault.ind <RC = LLI_FMA7_RC12, AD = LS/IV>
stop all timers, start T2, stop machines
SAP_DEACT.req
OPEN AB 34 ABT-SEND-PDU
1)
error on sending (SDA.con(RR/NA))
\M-M
=> ABT.ind to LLI user <RC = RR/NA, AD = ABT_AD4>
send ABT_REQ_PDU <RC = RR/NA> (SDA.req(low))
stop all timers, start T2, stop machines
OPEN AB 35 ABT-SEND-PDU
1)
error on sending (SDA.con(LR))
\M-M
=> ABT.ind to LLI user <RC = LR, AD = ABT_AD4>
send ABT_REQ_PDU <RC = LR>
(SDA.req(low))
LLI-Fault.ind <RC = LLI_FMA7_RC12, AD = LR>
stop all timers, start T2, stop machines
OPEN AB 36 ABT-POLL-LIST-OFF
1)
error in loading the update buffer
(S_UPDATE.con(LS/IV))
\M-S
=> ABT.ind to LLI user <RC = LS/IV, AD = ABT_AD1>
LLI-Fault.ind <RC = LLI_FMA7_RC3, AD = LS/IV>
deactivate Poll List entry
(ENTRY.req(remote address/remote LSAP/lock))
stop all timers, start T2, stop machines
1) see state diagram for connection release
Page 544
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
Open at the Master
Current State Transition Next State
Event
\Exit Condition
=> Action Taken
OPEN AB 37 ABT-UPDATE
1)
error in loading the update buffer (S_UPDATE.con(LR))
\M-S
=> ABT.ind to LLI user <RC = LR, AD = ABT_AD1>
send ABT_REQ_PDU <RC = LR>
(S_UPDATE.req(low))
LLI-Fault.ind <RC = LLI_FMA7_RC3, AD = LR>
stop all timers, start T2, stop machines
OPEN AB 38 ABT-POLL-LIST-OFF
1)
error on sending (CSRD.con(L_status = UE/RS/DS))
\M-S
=> ABT.ind to LLI user <RC = UE/RS/DS, AD = ABT_AD5>
deactivate Poll List entry
(ENTRY.req(remote address/remote LSAP/lock))
stop all timers, start T2, stop machines
OPEN AB 39 ABT-POLL-LIST-OFF
1)
error on sending (SRD.con(UE/RS/DS))
\M-S
=> ABT.ind to LLI user <RC = UE/RS/DS, AD = ABT_AD6>
deactivate Poll List entry
(ENTRY.req(remote address/remote LSAP/lock))
stop all timers, start T2, stop machines
OPEN AB 40 ABT-POLL-LIST-OFF
1)
error on sending (CSRD.con(L_status = LS/IV/OK/NO))
\M-S
=> ABT.ind to LLI user <RC = LS/IV/OK/NO, AD = ABT_AD5>
LLI-Fault.ind <RC = LLI_FMA7_RC13, AD = LS/IV/OK/NO>
deactivate Poll List entry
(ENTRY.req(remote address/remote LSAP/lock))
stop all timers, start T2, stop machines
OPEN AB 41 ABT-POLL-LIST-OFF
1)
error on sending (SRD.con(LS/IV))
\M-S
=> ABT.ind to LLI user <RC = LS/IV, AD = ABT_AD6>
LLI-Fault.ind <RC = LLI_FMA7_RC14, AD = LS/IV>
deactivate Poll List entry
(ENTRY.req(remote address/remote LSAP/lock))
stop all timers, start T2, stop machines
OPEN AB 42 ABT-UPDATE
1)
error on sending (CSRD.con(L_status = RR/NA/RDL/RDH))
\M-S
=> ABT.ind to LLI user <RC = RR/NA/RDL/RDH, AD = ABT_AD5>
send ABT_REQ_PDU <RC = RR/NA/RDL/RDH>
(S_UPDATE.req(low))
stop all timers, start T2, stop machines
ignore data if present
1) see state diagram for connection release
Page 545
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
Open at the Master
Current State Transition Next State
Event
\Exit Condition
=> Action Taken
OPEN AB 43 ABT-UPDATE
1)
error on sending (SRD.con(RR/NA/RDL/RDH))
\M-S
=> ABT.ind to LLI user <RC = RR/NA/RDL/RDH, AD = ABT_AD6>
send ABT_REQ_PDU <RC = RR/NA/RDL/RDH>
(S_UPDATE.req(low))
stop all timers, start T2, stop machines
ignore data if present
OPEN AB 44 ABT-UPDATE
1)
error on sending (CSRD.con(L_status = LR))
\M-S
=> ABT.ind to LLI user <RC = LR, AD = ABT_AD5>
send ABT_REQ_PDU <RC = LR>
(S_UPDATE.req(low))
LLI-Fault.ind <RC = LLI_FMA7_RC13, AD = LR>
stop all timers, start T2, stop machines
OPEN AB 45 ABT-UPDATE
1)
error on sending (SRD.con(LR))
\M-S
=> ABT.ind to LLI user <RC = LR, AD = ABT_AD6>
send ABT_REQ_PDU <RC = LR>
(S_UPDATE.req(low))
LLI-Fault.ind <RC = LLI_FMA7_RC14, AD = LR>
stop all timers, start T2, stop machines
OPEN AB 46 ABT-SEND-PDU
1)
DTC_RES_PDU received (SDA.ind(serv_class = low/high))
OR DTC.res from LLI user
\M-M AND (invoke ID = unknown) AND (LLI-SAP=0)
=> ABT.ind to LLI user <RC = ABT_RC7>
send ABT_REQ_PDU <RC = ABT_RC7> (SDA.req(low))
stop all timers, start T2, stop machines
OPEN AB 47 ABT-UPDATE
1)
DTC_RES_PDU received ((C)SRD.con(L_status = DL/DH))
OR DTC.res from LLI user
\M-S AND (invoke ID = unknown) AND (LLI-SAP=0)
=> ABT.ind to LLI user <RC = ABT_RC7>
send ABT_REQ_PDU <RC = ABT_RC7> (S_UPDATE.req)
stop all timers, start T2, stop machines
OPEN DTCC 1 OPEN
DTC.req from LLI user
\cyc. M-S AND (status DTCC = DTCC-WAIT-FOR-REQ)
AND (Read OR Write)
=> start DTCC Req.
1) see state diagram for connection release
Page 546
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
Open at the Master
Current State Transition Next State
Event
\Exit Condition
=> Action Taken
OPEN AB 48 ABT-UPDATE
1)
T3 expired
\cyc. M-S
=> send ABT_REQ_PDU <RC = ABT_RC11>
(S_UPDATE.req)
ABT.ind to LLI user <RC = ABT_RC11>
stop all timers, start T2, stop machines
OPEN AB 49 ABT-SEND-PDU
1)
IDLE_REQ_PDU received (SDA.ind(serv_class = low))
\M-M AND (ACI = 0)
=> send ABT_REQ_PDU <RC = ABT_RC3>
(SDA.req(low))
ABT.ind to LLI user <RC = ABT_RC3>
stop all timers, start T2, stop machines
OPEN AB 50 ABT-UPDATE
1)
IDLE_REQ_PDU received ((C)SRD.con(L_status = DL))
\(acyc. M-S AND (ACI = 0)) OR (cyc. M-S)
=> send ABT_REQ_PDU <RC = ABT_RC3>
(S_UPDATE.req)
ABT.ind to LLI user <RC = ABT_RC3>
stop all timers, start T2, stop machines
OPEN DTA 19 OPEN
DTA.req from LLI user
\cyc. M-S AND (SAC < max SAC)
=> start DTA Req.
SAC := SAC + 1
OPEN DTA 20 OPEN
DTA_ACK_PDU received
((C)SRD.con(L_status = DL/DH)/SRD.con(DL/DH))
\cyc. M-S AND (SAC > 0)
=> SAC := SAC - 1
OPEN AB 51 ABT-POLL-LIST-OFF
1)
receipt without data
((C)SRD.con(L_status = NR, update_status = NO))
\M-S
=> ABT.ind to LLI user <RC = ABT_RC25>
LLI-Fault.ind <RC = LLI_FMA7_RC24>
deactivate Poll List entry
(ENTRY.req(remote address/remote LSAP/lock))
stop all timers, start T2, stop machines
OPEN AB 52 ABT-UPDATE
1)
DTC.req from LLI user
\cyc. M-S AND (status DTCC = DTCC-WAIT-FOR-REQ)
AND NOT (Read OR Write)
=> send ABT_REQ_PDU <RC = ABT_RC9> (S_UPDATE.req)
ABT.ind to LLI user <RC = ABT_RC27>
stop all timers, start T2, stop machines
1) see state diagram for connection release
Page 547
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
6.7.3.2 State Diagram for Open at the Slave
OPEN
2
3
DTC1 to DTC3, DTA1 to DTA16,
IT1 to IT3, DTCC1, DTCC4, DTCC5
AB1 to AB10,
AB13 to AB16,
AB19, AB 21, AB22, AB 25
AB11, AB12,
AB17, AB18,
AB23, AB24
The Transitions with the numbers 2 and 3 are
continued in theFi
g
ure "Connection Release".
Figure 113. State Diagram for Open at the Slave
Page 548
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
Description of State Transitions for Open at the Slave
Open at the Slave
Current State Transition Next State
Event
\Exit Condition
=> Action Taken
OPEN DTA 1 OPEN
DTA.req from LLI user
\acyc. M-S with SI AND (SAC < max SAC) AND (ACI = 0)
=> start DTA Req.
SAC := SAC + 1
OPEN DTA 2 OPEN
DTA.req from LLI user
\acyc. M-S with SI AND (SAC < max SAC) AND (ACI > 0)
=> start DTA Req.
SAC := SAC + 1
start STimer
OPEN DTA 3 OPEN
DTA.req from LLI user
\M-S with SI AND (SAC < max SAC)
=> ignore DTA.req
OPEN AB 1 ABT-UPDATE
1)
DTA.req from LLI user
\M-S without SI
=> send ABT_REQ_PDU <RC = ABT_RC9>
(UPDATE.req(low))
ABT. ind to LLI user <RC = ABT_RC19,AD = code of the primitive>
LLI-Fault.ind <RC = LLI_FMA7_RC11, AD = code of the primitive>
stop all timers, start T2, stop machines
OPEN DTA 4 OPEN
DTA_ACK_PDU received (SRD.ind(serv_class = low/high))
\acyc. M-S with SI AND (SAC > 0) AND (ACI = 0)
=> SAC := SAC - 1
OPEN DTA 5 OPEN
DTA_ACK_PDU received (SRD.ind(serv_class = low/high))
\acyc. M-S with SI AND (SAC > 0) AND (ACI > 0)
=> start RTimer
SAC := SAC - 1
OPEN AB 2 ABT-UPDATE
1)
DTA_ACK_PDU received (SRD.ind(serv_class = low/high))
\M-S with SI AND (SAC = 0)
=> send ABT_REQ_PDU <RC = ABT_RC5>
(UPDATE.req(low))
ABT.ind to LLI user <RC = ABT_RC5>
stop all timers, start T2, stop machines
1) see state diagram for connection release
Page 549
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
Open at the Slave
Current State Transition Next State
Event
\Exit Condition
=> Action Taken
OPEN AB 3 ABT-UPDATE
1)
DTA_ACK_PDU received (SRD.ind(serv_class = low/high))
\M-S without SI
=> send ABT_REQ_PDU <RC = ABT_RC3>
(UPDATE.req(low))
ABT.ind to LLI user <RC = ABT_RC3>
stop all timers, start T2, stop machines
OPEN DTA 6 OPEN
DTA Req. finished
\M-S with SI
OPEN DTC 1 OPEN
DTC_REQ_PDU received (SRD.ind(serv_class = low))
\acyc. M-S AND (RCC < max RCC) AND (ACI = 0)
=> start DTC Res. (invoke ID)
RCC := RCC + 1
OPEN DTC 2 OPEN
DTC_REQ_PDU received (SRD.ind(serv_class = low))
\acyc. M-S AND (RCC < max RCC) AND (ACI > 0)
=> start DTC Res. (invoke ID)
RCC := RCC + 1
start RTimer
OPEN AB 4 ABT-UPDATE
1)
DTC_REQ_PDU received (SRD.ind(serv_class = low))
\acyc. M-S AND (RCC < max RCC)
=> send ABT_REQ_PDU <RC = ABT_RC6>
(UPDATE.req(low))
ABT.ind to LLI user <RC = ABT_RC6>
stop all timers, start T2, stop machines
OPEN DTC 3 OPEN
DTC Res. finished
\acyc. M-S
=> RCC := RCC - 1
OPEN DTA 7 OPEN
DTA_REQ_PDU received (SRD.ind(serv_class = low/high))
\acyc. M-S AND (RAC < max RAC) AND (ACI = 0)
=> start DTA Ack.
RAC := RAC + 1
OPEN DTA 8 OPEN
DTA_REQ_PDU received (SRD.ind(serv_class = low/high))
\acyc. M-S AND (RAC < max RAC) AND (ACI > 0)
=> start DTA Ack.
RAC := RAC + 1
start RTimer
1) see state diagram for connection release
Page 550
PROFIBUS-Specification-Normative-Parts-6:1997
Copyright by PNO 1997 - all rights reserved
Open at the Slave
Current State Transition Next State
Event
\Exit Condition
=> Action Taken
OPEN AB 5 ABT-UPDATE
1)
DTA_REQ_PDU received (SRD.ind(serv_class = low/high))
\M-S AND (RAC < max RAC)
=> send ABT_REQ_PDU <RC = ABT_RC6>
(UPDATE.req(low))
ABT.ind to LLI user <RC = ABT_RC6>
stop all timers, start T2, stop machines
OPEN DTA 9 OPEN
DTA Ack. finished
\M-S
=> RAC := RAC - 1
OPEN IT 1 OPEN
STimer expired
\acyc. M-S
=> start STimer
start Idle Req.
OPEN IT 2 OPEN
Idle Req. finished
\acyc. M-S
OPEN IT 3 OPEN
IDLE_REQ_PDU received (SRD.ind(serv_class = low))
\acyc. M-S AND (ACI > 0)
=> start RTimer
OPEN AB 6 ABT-UPDATE
1)
RTimer expired
\acyc. M-S
=> send ABT_REQ_PDU <RC = ABT_RC12> (UPDATE.req(low))
ABT.ind to LLI user <RC = ABT_RC12>
stop all timers, start T2, stop machines
OPEN AB 7 ABT-UPDATE
1)
DTC_RES_PDU received (SRD.ind(serv_class = low/high))
OR ASS_REQ_PDU received (SRD.ind(serv_class = low/high))
OR ASS_RES_PDU received (SRD.ind(serv_class = low/high))
OR ASS_NRS_PDU received (SRD.ind(serv_class = low/high))
OR DTU_REQ_PDU received (SRD.ind(serv_class = low/high))
\M-S
=> send ABT_REQ_PDU <RC = ABT_RC3> (UPDATE.req(low))
ABT.ind to LLI user <RC = ABT_RC3>
stop all timers, start T2, stop machines
OPEN AB 8 ABT-UPDATE
1)
IDLE_REQ_PDU received (SRD.ind(serv_class = high))
OR DTC_REQ_PDU received (SRD.ind(serv_class = high))
\M-S
=> send ABT_REQ_PDU <RC = ABT_RC8> (UPDATE.req(low))
ABT.ind to LLI user <RC = ABT_RC8>
stop all timers, start T2, stop machines
1) see state diagram for connection release