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• OPC-10000-10 – OPC Unified Architecture - Part 10: Programs
  4.2.10.2 Program instances
  Program Instances can be run in parallel . For example , the Program may define a Start Method that has an input argument to specify which resource is acted upon
• OPC-10000-10 – OPC Unified Architecture - Part 10: Programs
  5.2.3.3 ProgramStateMachineType transitions
  True ProgramTransitionEventType HasEffect True AuditProgramTransitionEventType ReadyToRunning ToState True Running FromState True Ready HasCause True Start HasEffect True ProgramTransitionEventType HasEffect True AuditProgramTransitionEventType RunningToHalted ToState True Halted FromState True Running HasCause True ... specifies the transition from the Ready to Running states. It is caused by the Start Method. The RunningToHalted transition specifies the transition from the Running to Halted states
• OPC-10000-10 – OPC Unified Architecture - Part 10: Programs
  5.2.4.1 Overview
  transitions . Table 8 - ProgramStateMachineType causes BrowseName References Target BrowseName Value Target TypeDefinition NOTES Causes Start HasProperty InputArguments PropertyType Optional HasProperty OutputArguments PropertyType Optional Suspend HasProperty InputArguments PropertyType Optional HasProperty OutputArguments ... HasProperty OutputArguments PropertyType Optional Reset HasProperty InputArguments PropertyType Optional HasProperty OutputArguments PropertyType Optional The Start Method causes the ReadyToRunning Program transition. The Suspend Method causes the RunningToSuspended Program transition
• OPC-10000-10 – OPC Unified Architecture - Part 10: Programs
  A.2.4.1 General
  A.2.4.1 General Four standard Program Methods are specified for running the DomainDownload Program, Start, Suspend, Resume, and Halt. No additional Methods are specified . The base behaviours of these Methods ... defined by the ProgramStateMachineType. The Start Method initiates the download activity and passes the source and destination locations for the transfer. The Suspend Method is used to pause the activity
• OPC-10000-10 – OPC Unified Architecture - Part 10: Programs
  A.2.6.2 DomainDownloadType
  HasComponent Object RunningToSuspended TransitionType HasComponent Object SuspendedToRunning TransitionType HasComponent Object SuspendedToHalted TransitionType HasComponent Method Start Mandatory HasComponent Method Suspend Mandatory HasComponent Method Halt Mandatory HasComponent Method Resume Mandatory HasComponent Object ... HasComponent Object SendingToAborted TransitionType HasComponent Object SendingToSuspended TransitionType HasComponent Object SuspendedToSending TransitionType HasComponent Method Start Mandatory HasComponent Method Suspend Mandatory HasComponent Method Halt Mandatory HasComponent Method Resume Mandatory Table
• OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates
  5.4.2.2 Generating intervals
  Generating intervals To read Historical Aggregates , OPC clients shall specify three time parameters: startTime (Start) endTime (End) ProcessingInterval (Int) The OPC Server shall use these three parameters to generate ... which time intervals are generated. Table 49 provides information on the intervals for each Start and End time combination. The range is defined to be |End - Start|. All Aggregates return
• OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates
  5.4.3.25 Start
  Start The Start Aggregate defined in Table 73 retrieves the earliest raw value within the interval, and returns that value and status with the timestamp at which that value occurs ... values are in the interval then the StatusCode is Bad_NoData . Table 73 - Start Aggregate summary Start Aggregate Characteristics Type Calculated Data Type Same as Source Use Bounds None Timestamp