update powermeter sequence diagrams

Signed-off-by: pietfried <pietgoempel@gmail.com>

doc/ocmf/powermeter_start_transaction.puml

@@ -0,0 +1,51 @@
+@startuml
+autonumber "<b><font color=red>"
+participant Powermeter
+participant EvseManager
+participant OCPP
+participant CSMS
+
+title Start of a Transaction
+
+== User plugs in EV and authorizes ==
+
+EvseManager->OCPP: Event(SessionStarted)
+
+OCPP->CSMS: StatusNotification.req(Preparing)
+return StatusNotification.conf
+
+alt successful case
+    EvseManager -> Powermeter: startTransaction
+    return startTransaction Response (OK/ID)
+
+    EvseManager -> OCPP: Event(TransactionStarted)
+    OCPP->CSMS: StartTransaction.req
+    return StartTransaction.conf
+
+    note over EvseManager: Transaction started successfully
+
+else startTransaction failing due to power loss
+    EvseManager -> Powermeter: startTransaction
+    return startTransaction Response (FAIL)
+
+    EvseManager -> OCPP: Event(Deauthorized)
+
+    OCPP->CSMS: StatusNotification.req(Finishing)
+    return StatusNotification.conf
+
+    EvseManager -> OCPP: raiseError (PowermeterTransactionStartFailed)
+    OCPP->CSMS: StatusNotification.req(Finishing, PowermeterTransactionStartFailed)
+    return StatusNotification.conf
+
+alt EvseManager configured to become inoperative in case of PowermeterCommError
+    EvseManager -> OCPP: raiseError (Inoperative)
+    OCPP->CSMS: StatusNotification.req(Faulted)
+    return StatusNotification.conf
+
+end
+
+note over EvseManager: Transaction did not start
+
+end
+
+@enduml

doc/powermeter_stop_transaction_without_error copy.puml → doc/ocmf/powermeter_stop_transaction.puml

@@ -4,7 +4,7 @@ participant EVSE_Manager
 participant OCPP
 participant CSMS
 
-title Stopping transaction
+title Stopping transaction in error
 
 == Transaction is running ==
 
@@ -14,40 +14,35 @@ Powermeter -> Powermeter: livemeasure FAILED
 Powermeter -> EVSE_Manager: raiseError (CommunicationFault)
 & Powermeter -> OCPP: raiseError (CommunicationFault)
 
-EVSE_Manager->EVSE_Manager: Pause charging
-
-OCPP->CSMS: StatusNotification.req(Faulted)
+OCPP->CSMS: StatusNotification.req(Charging, CommunicationFault)
 return StatusNotification.conf
 
-Powermeter -> Powermeter: livemeasure OK
-Powermeter -> Powermeter: get Powermeter status
-!pragma teoz true
-Powermeter -> EVSE_Manager: clearError (CommunicationFault)
-& Powermeter -> OCPP: clearError (CommunicationFault)
-
-EVSE_Manager->EVSE_Manager: Resume charging
+alt EvseManager configured to become inoperative in case of PowermeterCommError
+    EVSE_Manager->EVSE_Manager: Pause charging
+    EVSE_Manager -> OCPP: raiseError (Inoperative)
+    OCPP->CSMS: StatusNotification.req(Faulted)
+    note over EVSE_Manager: Note that we just continue charging otherwise    
+end
 
-OCPP->CSMS: StatusNotification.req(Charging)
-return StatusNotification.conf
+!pragma teoz true
 
-== User stops transaction ==
+== User stops transaction while powermeter communication error ==
 
 alt successful case
 EVSE_Manager -> Powermeter: stopTransaction (ID)
 return stopTransaction Response (OK/OCMF)
-EVSE_Manager -> OCPP: Event(TransactionFinished(ID/stopReason:PowerLoss/OCMF))
+EVSE_Manager -> OCPP: Event(TransactionFinished(OCMF))
 
-OCPP->CSMS: StopTransaction.req(ID/stopReason:PowerLoss/OCMF)
+OCPP->CSMS: StopTransaction.req(OCMF)
 return StopTransaction.conf
 
 else stopTransaction failing due to subsequent power loss
 EVSE_Manager -> Powermeter: stopTransaction (ID)
-Powermeter -> Powermeter: livemeasure FAILED
 Powermeter -> EVSE_Manager: stopTransaction Response (FAIL)
-EVSE_Manager -> OCPP: Event(TransactionFinished(ID/stopReason:PowerLoss/OCMF))
+EVSE_Manager -> OCPP: Event(TransactionFinished)
 
 note right of OCPP: In this case we can't stop the transaction including the OCMF
-OCPP->CSMS: StopTransaction.req(ID/stopReason:PowerLoss)
+OCPP->CSMS: StopTransaction.req()
 return StopTransaction.conf
 end