| 摘要 |
<p>PURPOSE:To greatly shorten cause investigating operation in the case of communication abnormality by providing a means which displays or stores data sent or received between a program controller and an external controller and a means which displays or stores internal information on the communication controller in the program controller. CONSTITUTION:Data which are actually inputted to an NC device are displayed into a PC NC field. An NC PC field, on the other hand, contains a control code sent from the NC device to the PC at the time of input to the NC device. Then, the internal information on the communication controller is displayed on its right side. From the internal information on the communication controller, the permission/inhibition state of the transmission and reception of an input/ output line, error contents in the case of communication abnormality, etc., can be judged. Further, the control code sent to the NC device and data actually outputted from the NC device are displayed in a PC NC and an NC PC field. Consequently, the cause of the communication abnormality can be grasped.</p> |
