The Control of a Beamline Over Intranet

TL;DR

This paper presents a novel method for controlling a beamline over an intranet using DCOM and web technologies, enabling remote operation and monitoring of the beamline at NSRL.

Contribution

It introduces an integrated control system combining DCOM and Java web interfaces for remote beamline management over LAN.

Findings

Successful remote control of the beamline over intranet

Implementation of web-based monitoring and control interface

Enhanced accessibility for beamline operation

Abstract

The machines and beamlines controlled by VME industrial networks are very popular in accelerator faculties. Recently new software technology, among of which are Internet/Intranet application, Java language, and distributed calculating environment, changes the control manner rapidly. A program based on DCOM is composed to control of a variable included angle spherical grating monochromator beamline at National Synchrotron Radiation Laboratory (NSRL) in China. The control computer with a residential DCOM program is connected to Intranet by LAN, over which the user-end-operating program located in another computer sends driving beamline units' commands to the control computer. And also a web page coded in Java, published by the WWW service running in the control computer, is simply illustrated how to use web browser to query the states of or to control the beamline units.