7 ISA-95 Data Representation Model

7.2 ObjectTypes

7.2.2 ISA95JobResponseProviderObjectType

7.2.2.1 Overview

The ISA95JobResponseProviderObjectType contains a method to receive unsolicited job response requests as illustrated in Figure 5.

Figure 5 – ISA95JobResponseProvider Methods

Table 15 is the AddressSpace definition of an ISA95JobResponseProviderObjectType.

Table 15 – ISA95JobResponseProviderObjectType AddressSpace Definition

Attribute	Value
BrowseName	ISA95JobResponseProviderObjectType
IsAbstract	False

Subtype of the BaseObjectType defined in OPC 10000-5

References	NodeClass	BrowseName	Data Type	TypeDefinition	Other
0:HasComponent	Method	RequestJobResponse		See 7.2.2.2	M

RequestJobResponse – Defines the ISA95JobResponseRequest Method which receives requests for Job Responses.

The ISA95JobOrderReceiverObjectType with the ReceiveJobOrder method may be paired with an ISA95JobResponseProviderObjectType and the RequestJobResponse method, to send a Job Order and query for a JobResponse. This transaction is illustrated in Figure 6.

Figure 6 – ReceiveJobOrder and RequestJobResponse Transaction Example

7.2.2.2 RequestJobResponse Method

This method is used to return Job Responses for unsolicited requests for responses from a job order.

The signature of this Method is specified below. Table 16 and Table 17 specify the Arguments and AddressSpace representation, respectively.

Signature

RequestJobResponse (
[in]	String				JobOrderID
[in] 	ISA95JobOrderStateEnum 	JobOrderState
[out]	ISA95JobResponseDataType[]	JobResponse
[out]	UInt64	   	 		ReturnStatus
);

Table 16 – RequestJobResponse Method Arguments

Argument	Description
JobOrderID	Contains an ID of the job order, as specified by the method caller. This argument shall be null if the JobOrderState is defined.
JobOrderState	Contains a job status of the JobResponse to be returned. This argument shall be null if the JobOrderID is defined.
JobResponse	Contains information about the execution of a job order, such as the current status of the job, actual material consumed, actual material produced, actual equipment used, and job specific data.
ReturnStatus	Returns the status of the method execution.

If both JobOrderID and JobOrderState or neither are specified then an “Invalid Request” error shall be returned.

Method Result Codes are defined as part of the Call service (see OPC 10000-4, Table 56, and Table 57).

Table 17 – RequestJobResponse Method AddressSpace Definition

Attribute	Value
BrowseName	RequestJobResponse
IsAbstract	True

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
HasProperty	Variable	InputArguments	Argument[]	PropertyType	Mandatory
HasProperty	Variable	OutputArguments	Argument[]	PropertyType	Mandatory