| 摘要 |
A wireless communication device providing a node (30) in an industrial wireless network (WN) investigates if there is more than one data packet with process control data from the same data originating device destined for a process control device (16) in a transmission queue, where the data originating device is an interface to the process being controlled and transmits data packets in the transmission queue. If there is more than one such data packet, the wireless communication device further compares time stamps of the data packets, where a time stamp reflects the time of generation of a corresponding data packet, keeps the newest data packet and discards older data packets, so that only the most recent data packets from a data originating device are sent to the process control device from the node. |
