What is the indication if the software on the site controller is not installed correctly?

The correct choice highlights that if the software on the site controller is not installed correctly, the system is likely to show an error status. This is a logical outcome because a software installation process is intended to set up the controller to perform its tasks efficiently. If there are issues during installation—such as missing files, incorrect configurations, or incompatible software versions—the controller may not function properly.

When such errors are present, the system typically indicates its failure to operate normally, often by signaling a specific error status. This alerts the technician or user that there is a problem that needs to be addressed, which is essential for troubleshooting and ensuring that the site controller can return to its intended operational state.

The other choices suggest scenarios that would not arise from a failed installation. If all functions worked as intended, it would imply that the software was installed correctly. An indication of a successful installation contradicts the premise of having an installation issue. Additionally, suggesting that the site controller would restart automatically does not directly correlate with a failure in installation; a restart could happen for various reasons, but it does not specifically signal a problem with the software installation itself.