Emerson 4620 manual Connection State RDR, Using HPI-BHow Domains and Shelves are Represented

Using HPI-BHow Domains and Shelves are Represented

Table 4-5 Shelf Management Resource (continued)

SaHPIRptEntryT	Value
ResourceCapabilities	SAHPI_CAPABILITY_RESOURCE
	SAHPI_CAPABILITY_RDR
	SAHPI_CAPABILITY_CONTROL
	SAHPI_CAPABILITY_SENSOR
	When the shelf is reachable:
	SAHPI_CAPABILITY_DOMAIN
ResourceSeverity	SAHPI_MAJOR
DomainId	Domain Id when the shelf is reachable
IdString	Domain name

The shelf management resource contains the following two RDRs:

zDomain management control

Read-only HPI control which allows the application to obtain the IP address, port, domain name and other connection parameters of a particular shelf

zConnection status sensor

Contains information about the current status of the connection to a shelf

The definitions of both HPI controls are given in the following.

4.3.3.2.1Domain Management Control

This HPI control is only readable. It has the same structure and definition as the HPI controls defined in Table "Domain Management Control" on page 29, Table "Domain Management Control State" on page 29 and Table "Domain Management Control RDR" on page 28.

4.3.3.2.2Connection State Sensor

This HPI sensor represents the status of the connection to a shelf. When the connection is interrupted, an HPI event of type SAHPI_ES_OFF_LINE is generated. When the connection is reestablished, an HPI event of type SAHPI_ES_ON_LINE is generated. An application can access a shelf only when the state of this sensor is SAHPI_ES_ON_LINE. The definition of this sensor is given in the following tables.

Table 4-6 Connection State RDR

SaHpiRdrT	Value
RecordId	Assigned by HPI
RdrType	SAHPI_SENSOR_RDR
Entity	The same entity as domain management resource
RdrTypeUnion	MOTHPI_SENSOR_NAME_DOMAIN_CONNEC
	TION

30 System Management Interface Based on HPI-B (Centellis 4620) User’s Guide (6806800D85A)