Abstract
We report on our efforts in developing an innovative real-time data acquisition system that makes extensive use of dynamic data structures, concurrency and state machine features. The Data Acquisition Command Language developed at the Los Alamos Weapons Neutron Research (WNR) Facility is a Pascal-based system that incorporates these features to maximize system performance, reliability and adaptability while supporting a consistent, familiar and comfortable user interface. The details and benefits of the implementation philosophy and underlying structures are discussed.
Highlights
In order to establish the reqllirements and operational constraints that led to the development of the Los Alamos Data Acqulsltlnn
An adaptahl.e system can be made to conform to the needs of the entire range of WNfl experiments tion by system personnel
The DACL data acqulsltlon control task supports a queue of pending runs that can be updated, modif.led and examined by the user
Summary
Is a system that can he eff~clently designed, Implemt?tlted, opei’ated and maintained. The DACL development proJect promote overal 1 effl.clency. FrO promote Implernentacf.on ficiency, arl extended versl.on of tllc Pascal. Programmln~, IIseri for al 1 cotllng, At tht? In t,t)e precefilng ncct,lorls are I(lentlf’led arlfl st;r’ategles to phnse eflnrl~llap,o. Same Importance durlnp, the design ptlase as fl]rlctlorlal. reqtllremcnt,s. Lrlf=ntjlf’led at the oIIt.set,, are actively lrl(:r)r’~)ornt,f~(l lr)t,(>. I)atn ~;t,r’l]ct;l]r(?s [n conventional systems, utilizing static allocation schemes, severe functionality problems exist
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