-- MarioBragadireanu - 12 Oct 2014

PANDA Detector Control System

The present structure of PANDA experiment involves several sub-detectors and sub-systems (Fig.1). The Slow Controls (SC) of each PANDA sub-detector and sub-system are planned to be monitored and controlled from a supervisory software application.

PandaCentralDCS.png

In the past, an evaluation of SCADA development packages, PVSS, LabView, EPICS, was performed by a PANDA slow controls subgroup and the EPICS package was selected to be the main SC software development tool.

Due to the anticipated complexity of the whole PANDA SC and the expected staged assembly of PANDA detector, the SC system is highly needed to be modular and scalable. In order to accomplish this, each PANDA sub-detector or sub-system is envisaged to be basically autonomous but manageable from a supervisory layer´╗┐´╗┐.

The autonomy of each PANDA SC partition (Fig. 2) implies that the partition should be self-controllable. This means that, specific slow control software, tailored to configure, monitor and control the hardware devices belonging to the partition, is required. Moreover, the partition specific software must be capable to share data with the supervisory layer.

In order to ensure compatible data sharing between the SC supervisory layer and SC partition, an EPICS Gateway is required to be implemented by each PANDA SC partition. Additionally, the above gateway will provide access rights administration and subnet interface.

The SC operation of each partition will be performed from a dedicated graphical user interface (GUI). The interface should ensure the accurate and safe operation of the partition hardware. The complete interface, or part of it, will be embedded in the PANDA supervisory software.

At the moment, the state of the art user interface to EPICS is supported by the Control System Studio (CSS) framework. The technical design of PANDA SC system is planned to provide a set of guidelines for naming conventions, and graphical interface look and feel, in order to guarantee the similarity of the independent developed modules and to simplify the integration.

Because the device driver software support in EPICS is limited, the software development tools used to control the lowermost layer (Field Layer) are at the free choice of the developer. The only constrain here is that the software must be integrated in the control layer with the EPICS system. However, the recommendation is that the developer, in the early stages of design, should try implement, were is possible, the same hardware and software, with EPICS support, realized by other PANDA sub-systems.

Topic attachments
ISorted descending Attachment Action Size Date Who Comment
PandaCentralDCS.pngpng PandaCentralDCS.png manage 70.0 K 12 Oct 2014 - 07:39 MarioBragadireanu  
PandaDCSPartition.pngpng PandaDCSPartition.png manage 66.7 K 12 Oct 2014 - 08:14 MarioBragadireanu  
This topic: Sandbox > Draft_DCS
Topic revision: revision 1
 
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