<p>A communications network is comprised of two or more stations which share mastership of the network by passing a token between them. While a station holds the token it may send low or high priority messages. It may also inform other stations of its intent to exit the network and it may solicit for new stations wanting to enter the network.</p>
申请公布号
EP0355861(A1)
申请公布日期
1990.02.28
申请号
EP19890116918
申请日期
1986.08.28
申请人
ALLEN-BRADLEY COMPANY, INC.
发明人
ENGDAHL, JONATHAN R.;HANNEMAN, JEFFERY A.;SWEETON, DAVID C.