Siemens SIMATIC PCS 7 OSx - Chapter 7 Action Requests; Understanding Action Requests; Introduction

Action Requests7-2 SIMATIC PCS 7 OSx 4.1.2 Operator
7.1 Understanding Action Requests
In most instances, a batch process runs with minimal human interaction.
Occasionally, people need to make decisions about a process while it runs. To
accomplish this task, OSx uses action requests that enable an o perator to
interact with a process.
Action requests are system components that help control a process. With
action requests, the operator can actively and effectively interact with a
batch process from a central location.
During batch processing, action requests provide the following interactions:
• They inform the operator about the status of the process.
• They allow the operator to stop the process and perform quality checks,
product analysis, and other hands-on tasks.
• They prompt the operator for specific responses and
acknowledgements.
Introduction