摘要:
A user-defined development life cycle component is part of a qualification and version control system that is an integral part of a configuration toolset in a process automation system. The user enables and defines a development life cycle to be used by defining qualification states and their attributes, including the authorized state transitions and security and requirements for each transition, such as electronic signatures. Attributes define how each control object is treated in the system. For example, a “load to controller” flag defines if the control object is loadable to a controller when it is in a particular qualification state. A fallback state defines a qualification state in which the control object continues its life cycle when it is modified and checked-back-into the system. Through a restricted state definition, the user implements the “four-eye principle” so that two consecutive state changes are made by two different users.
摘要:
A user-defined development life cycle component is part of a qualification and version control system that is an integral part of a configuration toolset in a process automation system. The user enables and defines a development life cycle to be used by defining qualification states and their attributes, including the authorized state transitions and security and requirements for each transition, such as electronic signatures. Attributes define how each control object is treated in the system. For example, a “load to controller” flag defines if the control object is loadable to a controller when it is in a particular qualification state. A fallback state defines a qualification state in which the control object continues its life cycle when it is modified and checked-back-into the system. Through a restricted state definition, the user implements the “four-eye principle” so that two consecutive state changes are made by two different users.
摘要:
Phase function blocks are associated with a process for producing at least one product or part thereof. For example, a phase function block could reside in a recipe control module defining the process. Each phase function block can be executed to implement the process. A phase function block may acquire and initiate execution of a module providing control over a process element. The phase function block may also provide one or more first parameters to the module. The first parameters define how the module implements a portion of the process using the process element. In addition, the phase function block may retrieve one or more second parameters from the module. The second parameters are associated with results of the execution of the module. Multiple phase function blocks could be contained in multiple recipe control modules, which are distributed in multiple controllers in a hard real-time process control system.
摘要:
A method includes initializing, at a first controller, at least one process step of a control recipe from a master recipe associated with a batch process in response to detection of an event associated with the batch process. The method also includes executing, at the first controller, the at least one process step of the control recipe. The method further includes initializing, at the first controller, at least one second process step of the control recipe while executing the at least one process step of the control recipe. Initializing the at least one process step of the control recipe from the master recipe may include copying only a portion of the master recipe into the control recipe that is needed to begin execution of the control recipe.
摘要:
A system includes at least one memory and at least one processor. The at least one memory is operable to store a resource object associated with a resource. The at least one memory is also operable to store a plurality of requester objects associated with at least a portion of one or more processes. The one or more processes are associated with production of one or more products using the resource. The at least one processor is operable to arbitrate between multiple arbitration requests from multiple ones of the requester objects. Each arbitration request indicates that one of the requester objects is attempting to acquire the resource object so that the associated resource is used to produce one of the products. The at least one processor is operable to use one or more user-defined strategies to arbitrate between the multiple arbitration requests.
摘要:
A method includes initializing, at a first controller, at least one process step of a control recipe from a master recipe associated with a batch process in response to detection of an event associated with the batch process. The method also includes executing, at the first controller, the at least one process step of the control recipe. The method further includes initializing, at the first controller, at least one second process step of the control recipe while executing the at least one process step of the control recipe. Initializing the at least one process step of the control recipe from the master recipe may include copying only a portion of the master recipe into the control recipe that is needed to begin execution of the control recipe.
摘要:
Phase function blocks are associated with a process for producing at least one product or part thereof. For example, a phase function block could reside in a recipe control module defining the process. Each phase function block can be executed to implement the process. A phase function block may acquire and initiate execution of a module providing control over a process element. The phase function block may also provide one or more first parameters to the module. The first parameters define how the module implements a portion of the process using the process element. In addition, the phase function block may retrieve one or more second parameters from the module. The second parameters are associated with results of the execution of the module. Multiple phase function blocks could be contained in multiple recipe control modules, which are distributed in multiple controllers in a hard real-time process control system.
摘要:
A system includes at least one memory and at least one processor. The at least one memory is operable to store a resource object associated with a resource. The at least one memory is also operable to store a plurality of requester objects associated with at least a portion of one or more processes. The one or more processes are associated with production of one or more products using the resource. The at least one processor is operable to arbitrate between multiple arbitration requests from multiple ones of the requester objects. Each arbitration request indicates that one of the requester objects is attempting to acquire the resource object so that the associated resource is used to produce one of the products. The at least one processor is operable to use one or more user-defined strategies to arbitrate between the multiple arbitration requests.