- equipment directly connected to the apparatus/li>
- control devices
- Human-Machine Interface
EPICS provides the interface among the layers providing monitoring and supervision for any equipment composing the low level layer, implementing the algorithmic required for the control and providing to the higher layer (client services and operator interfaces) the information required to operate with the apparatus.
The RFQ is composed by many kinds of subsystems (radio frequency, vacuum, water cooling, etc.) developed using different hardware solutions. As consequence every part of this structure must be properly integrated to obtain the desired degree of control.
According to the gudelines and technical rules provoded by the Collaboration, the system has been designed and realized using these assumptions:
- VME system is used where the acquisition speed rate is crucial;
- PLC hardware is chosen in tasks where security is the most critical feature;
- Common hardware (such as embedded systems) is chosen when only integration is required