| 摘要 |
PURPOSE:To smoothing a polling sequency by generating a flag pattern during the processing to the polling sequence. CONSTITUTION:In a loop shaped group polling method, the secondary station discriminates a polling sequency transmitted from the primary station, and when the transmission request of the station itself takes place, the processing rewriting the gore head pattern GA at the last of polling sequence and adding telegraphic messages is made. In constituting the secondary station with a device slower in the processing speed such as a microcomputer, if the pattern GA of the polling sequence is received, flag patterns F are consecutively generated while the processing is finished from the point of time and a new pattern GA is generated. |
