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An I/O Subnet for the APS Control System - The BITBUS Universal Gateway
BibTeX
@MISC{Nawrocki_ani/o,
author = {G. J. Nawrocki and N. D. Arnold and M. G. Hoffberg and J. R. Winans and S. J. Benes},
title = {An I/O Subnet for the APS Control System - The BITBUS Universal Gateway},
year = {}
}
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Abstract
TheAdvancedPhotonSource(APS) control system is based on a distributed topology of microprocessor--based Input/Output Controllers (IOCs). Since the cost effectiveness of placing an IOC near every point where an interface to the control system is required may be prohibitive, I/O subnets implemented via message passing network protocols are utilized. For greatest flexibility, such a subnet must support connections to equipment via discrete I/O points, connections to standard interfaces such as GPIB and RS232, and be a practical network for custom--designed interfaces to intelligent equipment. This paper describes the BITBUS Universal Gateway (BUG), a device which supports the different interfaces mentioned above with a connection to a single BITBUS distributed subnet. The BUG utilizes an interchangeable set of circuit boards, which allow for a commonality among interface points, and the ability to use commercially-- available modules for I/O. This approach also circumvents several limitat...
Keyphrases
bitbus universal gateway aps control system control system circuit board available module network protocol interface point interchangeable set practical network intelligent equipment several limitat input output controller cost effectiveness distributed topology single bitbus different interface
