What is signified by status messages in the controller?

Status messages in the controller primarily indicate the current condition or state of the controller. These messages provide critical insights into what the system is currently doing, whether it's operational, in a standby state, or performing a specific task. Understanding the current controller state through these messages is essential for monitoring system performance and ensuring that everything is functioning as intended. This context allows operators to make informed decisions regarding the operation of the machinery and helps in troubleshooting issues if they arise.

While error notifications, confirmations from operators, and indications of waiting for input are all important aspects of communication within a control system, the primary function of status messages is to inform users of the ongoing state of the controller, which is vital for effective system management.