SAE J1939 Request Manager (J1939Rm)

This function initializes the J1939 Request Manager.

This function resets the J1939 Request Manager to the uninitialized state.

Returns the version information of this module.

Main function of the J1939 Request Manager. Used for scheduling purposes and timeout supervision.

Changes the communication state of J1939Rm to offline (only Request for AC supported) or online.

Requests transmission of a Request or Request2 PG.

Cancels timeout monitoring of a request. If the request is not active, or timeout monitoring was not requested, this call has no effect.

Requests transmission of an Acknowledgement PG.

Indication of a received PDU from a lower layer communication interface module.

The lower layer communication interface module confirms the transmission of a PDU, or the failure to transmit a PDU.

Reports a received ComIPdu. If this ComIPdu was requested via J1939Rm_SendRequest or the SendRequest service operation, a request timeout for this request is stopped.

Indicates reception of a Request or Request2 PG.

Indicates reception of an Acknowledgement PG.

Indicates timeout of a request triggered with the same parameters.

This is the base type for the configuration of the J1939 Request Manager. A pointer to an instance of this structure will be used in the initialization of the J1939 Request Manager. The content of this structure is defined in chapter 10 Configuration specification.

This type represents the communication state of the J1939 Request Manager.

This type represents the available kinds of acknowledgements. Variation –

This type represents the available kinds of extended identifier usage. Variation –

This type represents a set of extended identifiers. Variation –

When J1939Rm_RxIndication is called by the PDU Router to indicate reception of a request, and the requested PGN is configured via J1939RmUserRequestPGN to trigger either the J1939 Diagnostic Communica- tion Manager or a CDD , the J1939 Request Manager shall call the corresponding User_RequestIndication .

When J1939Rm_RxIndication is called by the PDU Router to indicate reception of a request, and the requested PGN is configured via J1939RmUserRequestPGN to be forwarded to the RTE , the J1939 Request Man- ager shall call the corresponding service port function.

The J1939 Request Manager shall only accept re- quests addressed to the whole network (global DA ), or to one of the configured ad- dresses of the ECU (see J1939RmNmNodeRef ).

When J1939Rm_RxIndication is called by the PDU Router to indicate reception of a request, and the requested PGN or the re- quested extended identifier bytes are not configured, and the destina- tion address is not the broadcast address, the J1939 Request Manager shall call PduR_J1939RmTransmit to send a negative acknowledgement ( NACK ).

When a BSW module, a CDD , or an SW-C (via service port and RTE ) calls J1939Rm_SendAck , the J1939 Request Manager shall call PduR_J1939RmTransmit to send the required acknowledgement.

When J1939Rm_Init is called in initialized state, the J1939 Request Manager shall not re-initialize its internal variables. It shall instead call Det_ReportError with the error code J1939Rm.J1939RM_E_REINIT if DET reporting is enabled (see J1939RmDevErrorDetect ).

A call to J1939Rm_Init initializes all internal variables and sets the J1939 Request Manager to the initialized state.

A call to J1939Rm_DeInit sets the J1939 Request Manager back to the uninitialized state.

A call to J1939Rm_SetState sets the state of a node's channel to online or offline.

In the offline state, the J1939 Request Manager only processes requests for the AddressClaimed PG , while timeout supervision and ac- knowledgement handling are completely disabled.

When a BSW module, a CDD , or an SW-C (via service port and RTE ) calls J1939Rm_SendRequest , the J1939 Request Manager shall call PduR_J1939RmTransmit to send the request.

If timeout supervision is enabled for the caller of J1939Rm_SendRequest via J1939RmUserTimeoutSupervision , and the param- eter checkTimeout is TRUE, and the destination address is not the broadcast ad- dress (0xFF): The J1939 Request Manager shall start timeout supervision.

Transmission requests for the Acknowledgement PG shall be queued when a previous transmission of this PG is still pending. The size of this queue is determined by J1939RmAckQueueSize .

The J1939 Request Manager shall use the J1939Rm_- TxConfirmation with result E_OK of the associated I-PDU to trigger transmission of pending Acknowledgement PGs .

If the J1939Rm_TxConfirmation is called with result E_NOT_OK , the J1939 Request Manager shall flush the Acknowledgement PG queue.

Transmission requests for the Request PG shall be queued when a previous transmission of this PG is still pending. The size of this queue is determined by J1939RmRequestQueueSize .

The J1939 Request Manager shall use the J1939Rm_- TxConfirmation with result E_OK of the associated I-PDU to trigger transmission of pending Request and Request2 PGs .

If the J1939Rm_TxConfirmation is called with result E_NOT_OK , the J1939 Request Manager shall flush the corresponding request PG queue.

When J1939Rm_SendRequest is called with the param- eter checkTimeout set to TRUE and a destination address that is not the broadcast address (0xFF), and timeout handling is enabled for the caller via J1939RmUserTimeoutSupervision : The J1939 Request Manager shall store (separately for each node) the calling module's user ID, the PGN , extended iden- tifier bytes , the source address , and the destination address of the re- quest.

When a request is sent with the global destination ad- dress , it shall also be handled internally as if it was received via J1939Rm_RxIndi- cation .

The J1939 Request Manager shall only accept ac- knowledgements where the AddressAcknowledged is set to one of the configured ad- dresses of the ECU (see J1939RmNmNodeRef ).

When J1939Rm_RxIndication is called by the PDU Router to indicate reception of an acknowledgement which does not match a pending request, and the acknowledged PGN is configured via J1939RmUserAckPGN to trigger a CDD , the J1939 Request Manager shall call the corresponding User_AckIndi- cation .

When J1939Rm_RxIndication is called by the PDU Router to indicate reception of an acknowledgement which does not match a pend- ing request, and the acknowledged PGN is configured via J1939RmUserAckPGN to be forwarded to the RTE , the J1939 Request Manager shall call the corresponding service port function.

When an acknowledgement matching the request is re- ceived, when a configured COM RxIPduCallout is triggered which matches the request, or when a CDD or an application SW-C calls J1939Rm_CancelRequestTimeout , the timeout supervision of the request is stopped.

If the timeout supervision for a request reaches 1.25s, the J1939 Request Manager shall call the User_RequestTimeoutIndication cor- responding to the userId parameter of the initial J1939Rm_SendRequest .

Type of error Related error code Error value An API was called while the module was uninitialized J1939RM_E_UNINIT 0x01 The Init API was called twice J1939RM_E_REINIT 0x02 J1939Rm_Init was called with an invalid configuration pointer J1939RM_E_INIT_FAILED 0x03 An API service was called with a NULL pointer J1939RM_E_PARAM_POINTER 0x10 An API service was called with a wrong ID J1939RM_E_INVALID_PDU_SDU_ID 0x11 An API service was called with wrong network handle J1939RM_E_INVALID_NETWORK_ID 0x12 The API J1939Rm_SetState was called with a wrong state J1939RM_E_INVALID_STATE 0x13 An API was called with an illegal user ID J1939RM_E_INVALID_USER 0x14 An API was called with an unknown or illegal PGN J1939RM_E_INVALID_PGN 0x15 An API was called with an illegal priority J1939RM_E_INVALID_PRIO 0x16 An API was called with an illegal node address J1939RM_E_INVALID_ADDRESS 0x17 An API was called with an illegal Boolean option J1939RM_E_INVALID_OPTION 0x18 An API was called with an illegal AckCode J1939RM_E_INVALID_ACK_CODE 0x19 An API was called with an illegal node ID J1939RM_E_INVALID_NODE_ID 0x1a An API was called with invalid extended identifier bytes J1939RM_E_INVALID_EXTID_INFO 0x1b

If DET reporting is enabled via J1939RmDevErrorDetect , the J1939 Request Manager shall check PduIdType parameters ( PDU IDs) of its API functions against the configured IDs, and shall report the development error J1939Rm.J1939RM_E_INVALID_PDU_SDU_ID when an unknown ID is provided by the call.

Module Header File Imported Type ComStack_Types.h NetworkHandleType ComStack_Types.h PduIdType ComStack_Types.h PduInfoType ComStack_Types ComStack_Types.h PduLengthType Std Std_Types.h Std_ReturnType Module Header File Imported Type Std_Types.h Std_VersionInfoType

The J1939 Request Manager shall reject the state change by returning E_NOT_OK when the newState is not in the valid range. If DET is enabled via J1939RmDevErrorDetect , the development error J1939Rm.- J1939RM_E_INVALID_STATE shall be reported.

If DET reporting is enabled via J1939RmDevErrorDetect , the J1939 Request Manager shall check NetworkHandleType parameters (network handles) of its API functions against the referenced network handles of ComM, and shall report the development error J1939Rm.J1939RM_E_INVALID_NETWORK_ID when an unknown handle is provided by the call.

The frequency of invocations of J1939Rm_MainFunction is determined by the configuration parameter J1939RmMainFunctionPeriod .

PduR_J1939RmTransmit PduR_J1939Rm.h Requests transmission of a PDU.

Com_TriggerIPDUSendWithMetaData Com.h By a call to Com_TriggerIPDUSendWithMetaData the AUTOSAR COM module updates its internal metadata for the I-PDU with the given ID by copying the metadata from the given position and with respect to length of the globally configured Meta DataType of this I-PDU. Then the I-PDU is triggered for transmission. Det_ReportError Det.h Service to report development errors. J1939Dcm_RequestIndication J1939Dcm.h Indicates reception of a Request or Request2 PG. J1939Nm_RequestIndication J1939Nm.h Indicates reception of a Request or Request2 PG.

When J1939Rm_RxIndication is called by the PDU Router to indicate reception of an acknowledgement which matches a pending re- quest (acknowledged PGN , source address , acknowledged address), the J1939 Request Manager shall call the User_AckIndication or the service port function corresponding to the stored user ID.

The J1939 Request Manager shall reject transmission of a request by returning E_NOT_OK when the requestedPgn , the extIdType element within the extIdInfo , the destAddress , or the priority are not in the valid range, or when the userId is not one of the configured user IDs (see J1939RmUserId ), or when checkTimeout is true but timeout handling is disabled for the calling module (see J1939RmUserTimeoutSupervision ). If DET is enabled via J1939RmDevErrorDetect , the corresponding development error shall be reported: J1939Rm.J1939RM_E_INVALID_USER for userId , J1939Rm.J1939RM_E_IN- VALID_EXTID_INFO for extIdInfo , J1939Rm.J1939RM_E_INVALID_PGN for re- questedPgn , J1939Rm.J1939RM_E_INVALID_PRIO for priority , J1939Rm.- J1939RM_E_INVALID_ADDRESS for destAddress , and J1939Rm.J1939RM_E_- INVALID_OPTION for checkTimeout .

The J1939 Request Manager shall reject transmission of a request by returning E_NOT_OK when another request is pending and the request queue is full.

The J1939 Request Manager shall ignore the time- out cancellation request when the requestedPgn , the extIdType element within the extIdInfo , or the destAddress are not in the valid range, or when the userId is not one of the configured user IDs (see J1939RmUserId ), or if no suitable entry can be found in the list of pending requests. If DET is enabled via J1939RmDevErrorDetect , the corresponding development error shall be re- ported: J1939Rm.J1939RM_E_INVALID_USER for userId , J1939Rm.J1939RM_- E_INVALID_PGN for requestedPgn , J1939Rm.J1939RM_E_INVALID_EXTID_- INFO for extIdInfo , and J1939Rm.J1939RM_E_INVALID_ADDRESS for destAd- dress .

The J1939 Request Manager shall reject transmission of an acknowledgement by returning E_NOT_OK when the ackPgn , the extId- Type element within the extIdInfo , the ackAddress , or the priority are not in the valid range, or when the userId is not one of the configured user IDs (see J1939RmUserId ). If DET is enabled via J1939RmDevErrorDetect , the corre- sponding development error shall be reported: J1939Rm.J1939RM_E_INVALID_- USER for userId , J1939Rm.J1939RM_E_INVALID_EXTID_INFO for extId- Info , J1939Rm.J1939RM_E_INVALID_PGN for ackPgn , J1939Rm.J1939RM_E_- INVALID_ACK_CODE for ackCode , J1939Rm.J1939RM_E_INVALID_ADDRESS for ackAddress , and J1939Rm.J1939RM_E_INVALID_PRIO for priority .

The J1939 Request Manager shall reject transmission of an acknowledgement by returning E_NOT_OK when another acknowledgement is pending and the acknowledgement queue is full.

The J1939 Request Manager shall use the J1939Rm_- MainFunction for timing related purposes.

During initialization via J1939Rm_Init , the J1939 Re- quest Manager assumes the offline state for all nodes on all channels.

The J1939Rm_SendRequest API function shall only be available if J1939RmUserSendRequest is set for at least one user.

The J1939Rm_CancelRequestTimeout API function shall only be available if J1939RmUserTimeoutSupervision is set for at least one user.

The J1939Rm_SendAck API function shall only be avail- able if J1939RmUserSendAck is set for at least one user.

The J1939Rm_CheckReceivedComIPdu call back func- tion shall only be available if J1939RmUserTimeoutSupervision is set for at least one user.

The J1939Rm_RxIndication call back func- tion shall only be available if J1939RmUserAckIndication or J1939RmUserRequestIndication is set for at least one user.

The J1939Rm_TxConfirmation call back function shall only be available if J1939RmUserSendAck or J1939RmUserSendRequest is set for at least one user.

The Com_TriggerIPDUSendWithMetaData function is only required if at least one J1939RmComUser is configured.

The J1939Dcm_RequestIndication function is only re- quired if at least one J1939RmDcmUser is configured.

The J1939Nm_RequestIndication function is only re- quired if at least one J1939RmNmUser is configured.

The configured User_RequestIndication function shall be available for each user that has J1939RmUserRequestIndication enabled.

The configured User_AckIndication function shall be available for each user that has J1939RmUserAckIndication enabled.

The configured User_RequestTime- outIndication function shall be available for each user that has J1939RmUserTimeoutSupervision enabled.

If DET reporting is enabled via J1939RmDevErrorDetect , the J1939 Request Manager shall check node handle parameters of its API func- tions against the node handles of J1939Nm referenced via J1939RmNmNodeRef , and shall report the development error J1939Rm.J1939RM_E_INVALID_NODE_ID when an unknown handle is provided by the call.

Type uint8 Port Defined Argument Value(s) Value {ecuc(J1939Rm/J1939RmConfigSet/J1939RmNode/J1939RmUser/J1939Rm RteUser/J1939RmUserId.value)} Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportRequestTransmission)} == true user = {ecuc(J1939Rm/J1939RmConfigSet/J1939RmNode/J1939RmUser.SHORT-NAME)}

Type uint8 Port Defined Argument Value(s) Value {ecuc(J1939Rm/J1939RmConfigSet/J1939RmNode/J1939RmUser/J1939Rm RteUser/J1939RmUserId.value)} Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportAckTransmission)} == true user = {ecuc(J1939Rm/J1939RmConfigSet/J1939RmNode/J1939RmUser.SHORT-NAME)}

Type uint8 Port Defined Argument Value(s) Value {ecuc(J1939Rm/J1939RmConfigSet/J1939RmNode/J1939RmUser/J1939Rm RteUser/J1939RmUserId.value)} Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportTimeoutSupervision)} == true user = {ecuc(J1939Rm/J1939RmConfigSet/J1939RmNode/J1939RmUser.SHORT-NAME)}

Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportRequestIndication)} == true user = {ecuc(J1939Rm/J1939RmConfigSet/J1939RmNode/J1939RmUser.SHORT-NAME)}

Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportAckIndication)} == true user = {ecuc(J1939Rm/J1939RmConfigSet/J1939RmNode/J1939RmUser.SHORT-NAME)}

Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportTimeoutSupervision)} == true user = {ecuc(J1939Rm/J1939RmConfigSet/J1939RmNode/J1939RmUser.SHORT-NAME)}

Name AppSendAck Comment – IsService true Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportAckTransmission)} == true 0 E_OK Operation successful Possible Errors 1 E_NOT_OK Operation failed Operation SendAck Comment Requests transmission of an Acknowledgement PG. Variation – channel Type NetworkHandleType Direction IN Comment Channel on which the acknowledgement shall be sent. Variation – ackPgn Type uint32 Direction IN Comment Acknowledged PGN. Variation – extIdInfo Type J1939Rm_ExtIdInfoType Direction IN Comment – Variation – ackCode Type J1939Rm_AckCode Direction IN Comment Type of acknowledgement, see definition of J1939Rm_AckCode for available codes. Variation – ackAddress Type uint8 Direction IN Comment Address of the node that sent the request. Variation – priority Parameters Type uint8 Direction IN Comment Priority of the Acknowledgement PG. Variation – broadcast Type boolean Direction IN Comment Indicates whether the ACKM is a response to a broadcast request. Variation – Possible Errors E_OK E_NOT_OK

Name AppSendRequest Comment – IsService true Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportRequestTransmission)} == true 0 E_OK Operation successful Possible Errors 1 E_NOT_OK Operation failed Operation SendRequest Comment Requests transmission of a Request or Request2 PG. Variation – channel Type NetworkHandleType Direction IN Comment Channel on which the request shall be sent. Variation – requestedPgn Type uint32 Direction IN Comment PGN of the requested PG. Variation – extIdInfo Type J1939Rm_ExtIdInfoType Direction IN Comment – Variation – destAddress Type uint8 Parameters Direction IN Comment Address of the destination node or 0xFF for broadcast. Variation – priority Type uint8 Direction IN Comment Priority of the Request PG. Variation – checkTimeout Type boolean Direction IN Comment TRUE: Timeout supervision will be performed FALSE: No timeout supervision will be started Variation – Possible Errors E_OK E_NOT_OK

Name AppCancelRequestTimeout Comment – IsService true Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportTimeoutSupervision)} == true 0 E_OK Operation successful Possible Errors 1 E_NOT_OK Operation failed Operation CancelRequestTimeout Comment Cancels timeout monitoring of a request. If the request is not active, or timeout monitoring was not requested, this call has no effect. Variation – channel Type NetworkHandleType Direction IN Comment Channel on which the request was sent. Variation – requestedPgn Type uint32 Direction IN Comment PGN of the requested PG. Variation – extIdInfo Parameters Type J1939Rm_ExtIdInfoType Direction IN Comment – Variation – destAddress Type uint8 Direction IN Comment Address of the destination node or 0xFF for broadcast. Variation – Possible Errors E_OK E_NOT_OK

Name AppAckIndication Comment – IsService true Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportAckIndication)} == true 0 E_OK Operation successful Possible Errors 1 E_NOT_OK Operation failed Operation AckIndication Comment Indicates reception of an Acknowledgement PG. Variation – node Type uint8 Direction IN Comment Node by which the acknowledgement was received. Variation – channel Type NetworkHandleType Direction IN Comment Channel on which the acknowledgement was received. Variation – ackPgn Type uint32 Direction IN Comment Acknowledged PGN. Variation – extIdInfo Type J1939Rm_ExtIdInfoType Parameters Direction IN Comment Extended identifier bytes. Variation – ackCode Type J1939Rm_AckCode Direction IN Comment Type of acknowledgement, see definition of J1939Rm_AckCode for available codes. Variation – ackAddress Type uint8 Direction IN Comment Address of this node. Variation – sourceAddress Type uint8 Direction IN Comment Address of the node that sent the Acknowledgement PG. Variation – priority Type uint8 Direction IN Comment Priority of the Acknowledgement PG. Variation – Possible Errors E_OK E_NOT_OK

Name AppRequestIndication Comment – IsService true Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportRequestIndication)} == true 0 E_OK Operation successful Possible Errors 1 E_NOT_OK Operation failed Operation RequestIndication Comment Indicates reception of a Request or Request2 PG. Variation – node Type uint8 Parameters Direction IN Comment Node by which the request was received. Variation – channel Type NetworkHandleType Direction IN Comment Channel on which the request was received. Variation – requestedPgn Type uint32 Direction IN Comment PGN of the requested PG. Variation – extIdInfo Type J1939Rm_ExtIdInfoType Direction IN Comment Extended identifier bytes. Variation – sourceAddress Type uint8 Direction IN Comment Address of the node that sent the Request PG. Variation – destAddress Type uint8 Direction IN Comment Address of this node or 0xFF for broadcast. Variation – priority Type uint8 Direction IN Comment Priority of the Request PG. Variation – Possible Errors E_OK E_NOT_OK

Name AppRequestTimeoutIndication Comment – IsService true Variation {ecuc(J1939Rm/J1939RmGeneral.J1939RmSupportTimeoutSupervision)} == true 0 E_OK Operation successful Possible Errors 1 E_NOT_OK Operation failed Operation RequestTimeoutIndication Comment Indicates timeout of a request triggered with the same parameters. Variation – node Type uint8 Direction IN Comment Node by which the request was sent. Variation – channel Type NetworkHandleType Direction IN Comment Channel on which the request was sent. Variation – requestedPgn Type uint32 Direction IN Comment PGN of the requested PG. Variation – extIdInfo Type J1939Rm_ExtIdInfoType Direction IN Comment Extended identifier bytes. Variation – destAddress Type uint8 Direction IN Comment Address of the destination node or 0xFF for broadcast. Parameters Variation – Possible Errors E_OK E_NOT_OK

J1939Rm shall include the header file J1939Nm.h if at least one J1939RmNmUser is configured.

J1939Rm shall include the header file J1939Dcm.h if at least one J1939RmDcmUser is configured.

J1939Rm shall include a header file named <apiSer- vicePrefix>_Cbk.h for every configured J1939RmCddUser .

J1939Rm shall include the header file Com.h if at least one J1939RmComUser is configured.

When J1939Rm_RxIndication is called by the PDU Router to indicate reception of a request, and the requested PGN is configured via J1939RmComIPduPGN to be handled via COM , and when the extended identi- fier bytes of an RQST2 match the multiplexor values of a multiplexed message, the J1939 Request Manager shall prepare the MetaData from the given information and provide it to COM via Com_TriggerIPDUSendWithMetaData together with the PduId of the transmitted COM I-PDU referenced by J1939RmComIPduRef .

When J1939Rm_RxIndication is called by the PDU Router to indicate reception of a request, and the requested PGN is AddressClaimed ( AC , 0x0EE00), the J1939 Request Manager shall call J1939Nm_RequestIndication .

When no extended identifier bytes are provided with J1939Rm_SendRequest , J1939Rm shall send an RQST PG . When one or more extended identifier bytes are provided, an RQST2 PG shall be sent.

Transmission requests for the Request2 PG shall be queued when a previous transmission of this PG is still pending. The size of this queue is determined by J1939RmRequestQueue2Size .

Meta data items of type CAN_ID_32 contain the source address in the fourth (least significant) byte.

Meta data items of type CAN_ID_32 contain the destina- tion address in the third byte.

Meta data items of type CAN_ID_32 contain the priority in the bits 2-4 of the first (most significant) byte, where bit 0 is the least significant bit of a byte.

The J1939 Request Manager shall use a meta data item of type CAN_ID_32 to determine the source address , destination ad- dress , and priority of received request PGs .

The J1939 Request Manager shall use a meta data item of type CAN_ID_32 to provide the source address and priority of transmitted Acknowledgement PGs .

The J1939 Request Manager shall use a meta data item of type CAN_ID_32 to provide the source address , destination address , and priority of transmitted Request and Request2 PGs .

The J1939 Request Manager shall use a meta data item of type CAN_ID_32 to determine the source address and priority of received Acknowledgement PGs .

When an acknowledgement is sent, it shall also be handled internally as if it was received via J1939Rm_RxIndication .

If J1939RmGatewaySupport is enabled, and a J1939RmChannel is linked to another J1939RmChannel via a J1939NmSharedAddressSpace : All Request , Request2 , and Acknowledgement PGs that are received on the first J1939RmChannel shall be forwarded to the second J1939RmChannel .

If J1939RmGatewaySupport is enabled, and a J1939RmChannel is referenced by another J1939RmChannel via a J1939NmExternalNodeGatewayedChannelRef : All Request , Request2 , and Acknowledgement PGs that are received on the first J1939RmChannel shall be forwarded to the second J1939RmChannel .

Request and Request2 PGs shall only be forwarded if the destination address of the PG is the global address (0xFF) or a destination address that does not correspond to any J1939NmNodePreferredAddress refer- enced by a J1939RmNode that references the J1939RmChannel on which the PG was received.