IEC 61784-3-14:2010 pdf – lndustrial communication networks – Profiles – Part 3-14: Functional safety fieldbuses – Additional specifications for CPF 14.
6.2.3.3 Attribute
Object ID
This attribute identifies functional safety Link Object in MIB, The number of ObjectlD of Link Object shall be appointed in series Its data type is unsigned 16. and the access right is Read.
LocalAppID
This attribute identifies local FB instance. Its data type is unsignedl6. and the access right is Read and Write.
Local Object ID
This attribute identifies local variant object. Its data type is unsignedl6, and the access right is Read and Write.
Remote App ID
This attribute identifies remote FB instantiation. Its data type Is unsignedl6. and the access right is Read and Write,
Remot.ObjectlD
This attribute identifies remote variant object. Its data type is unsignedl6, and the access right is Read and Write.
S.rvlceOp.ratlon
This attribute specifies the application service to be used in the relevant communication relationship:
0—local link, no application service is used:
1 through 23.— the ServicelD of application services is used:
Others— invalid service.
Its data type is unsigned8. and the access right is Read and Write.
Se rv IceRole
This attribute defines the AREP role of local device in communication process
0—SENDER, lndic.ating that the AREP role of the local device is CLIENT or PUBLISHER.
1—RECEIVER, indicating that the AREP role of the local device is SERVER or SUBSCRIBER
Others—Link Object is invalid, and OxFF indicates that the Link Object is not configured or the Link Object has been deleted.
Its data type is unsignod8. and the access right is Read and Write.
R.mot.IPAddress
This attribute identifies lP address of remote device. This attribute shall be ignored ii local I-b Instantiation object and remote FB instantiation object are In the same device. Its data type Is unsigned32, and the access right Is Read and Write.
SendTimeOffset
This attribute defines the time offset when the relevant message shall be sent from the start time of a communication macro-cycle. This attribute is valid when Service ID Is OxCE (DISTRIBUTE) and ServiceRole Is OxOO. Its data type Is 4 bytes of TimeDifference. and the access right is Read and Write.
Total Fault Counter
This attribute specifies the counter for all communication faults to be detected. Its data type is unsigned 16, and the access right is Read only.
Local Fault Recorders
This attribute specifies the recorders for each communication faults to be detected. Its data type Is unslgnedl6. and the access right is Read Only.
CRC Error Counter
This attribute specifies the recorders for CRC Error to be detected. Its data type is unsigned 16, and the access right is Read only.
Sequence Error Counter
This attribute specifies the recorders for Sequence Error to be detected. Its data type is unsignedl6, and the access right is Read only.
Time Delay Counter
This attribute specifies the recorders for Time Delay to be detected. Its data type is unsigned 16, and the access right is Read only.
Time Synchronize Error Counter
This attribute specifies the recorders for Time Synchronize Error to be detected. Its data type is unsignedl6. and the access right is Read only.
Communication Scheduling Error Counter
This attribute specifies the recorders for Communication Scheduling Error to be detected. Its data type is unsignedl6, and the access right is Read only.
6.2.4.4 Service
Read
This optional service provides reading the attribute of Functional Safety Link Object. The Read service is defined IEC 61158-5-14.
EventNotification
This optional service allows the safety device to send the communication failure to the special host determined by Functional Safety Link Object. The EventNotification service Is defined in
IEC 61158-5-14.
AcknowledgeEventNotltication
This optional service allows the special host to acknowledge alert of communication failure from failed device. The AcknowledgeEventNotilication service is defined in IEC 61158-5-14.
6.3 Extended services
6.3.1 General
Table 4 defines additional services for use in safety devices. The index and ServicelD are specified in IEC 61158-5-14.