| 摘要 |
<P>PROBLEM TO BE SOLVED: To construct a stable communication environment by speech without preparing dedicated hardware and software among programmable controllers and display devices. <P>SOLUTION: A programming tool 1 to program programmable controllers P1 to P4 comprises a speech compression unit 1b for compressing speech data and a speech communication I/F unit 1a for transient transmission TR of the compressed speech data via a network NW where data is regularly transmitted to a designated transmission destination by cyclic transmission SY. <P>COPYRIGHT: (C)2012,JPO&INPIT |
