| 摘要 |
<p>PURPOSE:To monitor the working result of a relational process constituting element based upon an input signal to a process by displaying a signal input state to the process and an output state from the process constituting element driven by said signal input. CONSTITUTION:A signal input state to the process 2 and a signal output state outputted from the relational process constituting element driven based on the input signal are detected by a controller 15 at a fixed period and respective ly detected state signals are applied to an input state display part 16 and an output state display part 18 respectively through a sending/receiving part 14. Both the display parts 16, 18 display the signal input state to the process and the output state from the process constituting element driven by said input signal to a CRT 17 by means of an image of a lighting type pushbutton or the like. Consequently, the signal I/O state to/from the process can be grasped at a glance.</p> |
