| 摘要 |
<p>PURPOSE:To obtain a sequence controller with which the number of the input/ output parts without increasing the number of bits of a word in a program memory, by providing a means which delivers the selecting signal in case the information supplied from an instruction word part is specific. CONSTITUTION:A means is provided to deliver the selection signal in case the information supplied from an instruction word part is speific. For instance, the information is supplied to input/output devices 61-6n from an input/output number designating part 1 of a program storage device 3 via an input/output driver part 4. At the same time, the information given from an instruction word part 2 is fed to an instruction decoder/controller 5 and a selection signal producing circuit 8. Then it is decoded whether the information supplied from the controller 5 is identical with a specific instruction. When the information is a specific instruction, the selection signal 9 is produced from a selection signal producing circuit 8 and then fed to the devices 61-6n. These devices decide whether the own device is selected or not with the input/output number designating information given from an input/output driver part 4 and the signal 9.</p> |
