This Method starts a job order as soon as the Job Order receiver is ready to start. After successful execution of the method, job order in the JobOrderList shall be in state AllowedToStart.

If multiple job orders have been commanded to start, then the priority and timing values in the job orders shall be used to determine the order of execution of the job orders.

The signature of this Method is specified below. Table 19 and Table 20 specify the Arguments and AddressSpace representation, respectively.

Signature

Start (

[in]0:String JobOrderID

[in]LocalizedText[] Comment

[out]0:UInt64 ReturnStatus

);

Table 19 – Start Method Arguments

Argument	Description
JobOrderID	Identification of the Job Order to be started.
Comment	The comment provides a description of why the method was called. In order to provide the comment in several languages, it is an array of LocalizedText. The array may be empty, when no comment is provided.
ReturnStatus	Returns the status of the method execution.

B.2 defines common values for ReturnStatus.

Note: This specification does not define how a client can access the last comment. It may be displayed in a local HMI or provided in the parameters of the job response.

Method Result Codes are defined as part of the Call service (see OPC 10000-4, or Annex B Table 94, and Table 95).

Table 20 – Start Method AddressSpace Definition

Attribute	Value
BrowseName	Start
References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
0:HasProperty	Variable	0:InputArguments	0:Argument[]	0:PropertyType	Mandatory
0:HasProperty	Variable	0:OutputArguments	0:Argument[]	0:PropertyType	Mandatory