| 摘要 |
<p>The present invention relates to a control system for a high volume manufacturing installation of the type which comprises a control computer (2), a plurality of workstations (40, 42, 44), a plurality of control devices (30, 32, 34) for determining the status of each of the plurality of workstations, and a bidirectional multiplexer system (10) connected to the control computer and to the plurality of control devices for polling the control devices, storing status data from each of the control devices and transferring the status data on demand to the control computer. According to the invention the control system is characterised in that the bidirectional multiplexer system comprises means for transferring the status data in a sequence predetermined as a function of the relative positions of the plurality of workstations.</p> |
