Part 2: Data Structures and Guidelines for Languages Part 3: Models and representations of process and factory recipes Part 4: records for batch production
Part 2: 2003-10 Part 3: 2009-02 Part 4: 2010-02
ANSI/ISA-88 is a standard for batch-oriented driving style ( Batch Control ), which is often referred to as S88 or SP88. It is a design philosophy for software, equipment and the procedure. Part 1 was released in 1995 by ISA. ISA -88 was adopted by the IEC as IEC 61512. The standard is published in Germany as DIN standard DIN EN 61512.
Currently, the ISA -88 Batch-oriented driving style includes the following items:
- Part 1: Models and Terminology ( 1995)
- Part 2: Data Structures and Guidelines for Languages ( 2001)
- Part 3: Models and representations of process and factory recipes (2003)
- Part 4: Batch Production Records ( 2006)
ISA -88 provides consistent standards and terminology for batch-oriented driving style and defines the physical model, procedures and recipes. The standard would address the following problems: lack of a universal model for batch operation, communication difficulties with user requirements, integration of batch automation solutions from different suppliers and difficulties in configuring batch applications.
ISA - 88.01
The ISA - 88.01 is a standard which describes the batch production according to the following hierarchical models:
- Process model (Process Model - Equipment and Recipes )
- Physical Model (Physical Model - Equipment)
- Procedural control model ( Procedural Control Model - Recipes )
- Control, activity model ( Control Activity Model - Equipment And Recipes )
- Recipes ( Recipe )
ISA - 88.01 was initially ISA S88 and has been adopted as IEC 61512-1 in 1997.
The standard defines a process model (process model) that a process ( process) contains, which consists of an ordered set of process stages (process stages ) is given, which consists of an ordered set of process operations (process operations) exist, which consists of an ordered set of process steps (process actions ) exist.
The physical model is hierarchically composed of the following layers:
The physical model (physical model) begins with the company (enterprise ) which is a plant (site) must contain that plant sections ( areas) can contain which assets (process cells) may contain components must contain a unit ( unit), may contain technical device ( equipment modules) may contain individual control (control modules).
Model of flow control
The model of flow control ( procedural control model ) consists of recipe procedures ( recipe procedures ), consisting of an ordered set of sub- procedures (unit procedures ), consisting of an ordered set of operations ( operations), consisting of an ordered set of functions ( phases ). Some levels can be omitted.
There are the following types of recipe:
- Process recipe (general recipe ): general recipe for the entire company
- Factory recipe ( recipe site ): Recipe for the location
- Basic recipe (master recipe ) depends on the facilities ( Equipment) of the work
- Control recipe (control recipe ).
The recipe contains:
- Recipe header (header )
- Material and production data ( formula )
- Equipment Requirements ( equipment requirements )
- Recipe procedure (procedure)
- Other information needed for the recipe execution.
More models and features
In addition to structural definitions and models for batch control ISA -88 also offers features and models to:
- Control Activities (Control Activities)
- Recipe Management ( Recipe Management )
- Production planning and scheduling (Production Planning and Scheduling)
- Production information management (Production Information Management)
- Process Control ( Process Management)
- Part of system monitoring ( Unit Supervision )
- Process Control ( Process Control)