Descriptions of Plant Operations

The descriptions of the operations of a pharmaceutical process plant include not only the phase specifications defining the partial sequences of the process as modules, but also superordinate plant functionalities, control system descriptions, and I/O lists. All of these functional descriptions can be created, edited, and revised, and also managed, with the FS INPUT automation tool.

Phase specifications are used to describe partial sequences of the process and are therefore also referred to as sequencers or sequential controls. The required switching statuses of actuators, use of sensors, definition of parameters, communication with other phases, procedures in emergency situations, etc., are just some of the contents that need to be specified.

All of the interlocks (e.g., procedure for excess pressure) relevant to plant and personnel safety are defined in the superordinate plant operations.

The functionality of control systems, their actuators and sensors, as well as interaction with the phases is specified in the descriptions of the control systems. These descriptions employ a diagram for clarification of the control strategy and exemplification of input and output parameters. Internal and external parameters and the application thereof round out the specifications of the control systems.