【摘要】 以隧道为控制对象,在介绍Omron公司C系列PLC的DeviceNet现场总线系统的基础上,建立由DeviceNet主、从单元构成的通信网络,实现DeviceNet现场总线对隧道监控现场各个节点的实时通信控制,并指出现场总线控制适用于交通监控系统,且可以节省大量投资费用。更多还原

【Abstract】 Taking tunnel as the object,DeviceNet field bus of Omron’s C series was introduced and the tunnel monitoring system controlled by the communication network consisting of master and slave DeviceNet units,was presented.DeviceNet field bus can communicate with various nodes in tunnel monitoring,and field bus controlling can suit the traffic monitoring system with saving a great deal of expenses in investment.更多还原