The NLC Control System will have facilities to query the top level summary controller for the states of critical or interesting devices. The Control System will have to handle dual redundant facilities efficiently. There will be multiple PPS Consoles in the Control Room for PPS Operation and Diagnostics. These consoles will likely be PC hardware with vendor supplied application software. NLC Software Engineering will supply drivers to implement the Control System side of this PPS data interface.
Details are yet to be work out.
The NLC Control System will receive State and Status information from the PPS on a regular basis for display on System Status Displays. The Control System will not be able to exercise any form of control over the PPS facility. Authorized Operators and PPS Engineers will operate the 6 consoles from the Control Room for production operations and diagnostics. Each Console will be able to access any device or function in the system, and the last activation event from any console will define the device state. There will be no interlocks for messages to coordinate or control the use of thhese multiple consoles.