free-port mode

常见例句

The system adopts single main-station to control the serial ports under free port mode.
系統採用單主站方式，在自由口模式下控制串口。
How to implement serial communication between S7-200 PLC and computer based on free port mode was described in detail in the paper.
詳細介紹了在自由口模式下S7-200 PLC與計算機實現串行通信的方法，重點介紹了通信協議及其實現方法，竝給出了編程實例。
This paper shortly introduces the network communicating function of S7-200 series PLC, gives the programming instance that use its free port mode to communicate with Modem.
本文簡要介紹S7- 2 0 0系列PLC的網絡通訊功能，給出了採用自由口模式與調制解調器進行通訊的編程實例。