Programmable controller for sequentially controlling controlled machine
AssigneeKeyence Corporation
InventorsKatsunari Koyama, Mamoru Iida
Life of this patent
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Abstract
To provide a programmable controller for enabling a device value to be set and changed, and also referenced, easily and accurately. A programmable controller has a main unit CPU, a storage section, a display CPU, a display section, and a key section. The state of the key section is stored in a key information buffer of the display CPU. A control section of the display CPU sets and changes the device value stored in the storage section through the main unit CPU and causes the display section to display the device value stored in the storage section based on key information in the key information buffer.
Claims14
A programmable controller for sequentially controlling a controlled machine in accordance with a program, said programmable controller comprising:
- storage means having a storage area defined as a device;
- a key section for entering data into said storage means;
- setting and changing means for setting a device value in the storage area of said storage means or changing the device value set in the storage area based on the data entered by operating said key section;
- a display section for displaying the device value set in the storage area of said storage means;
- and
- key locking means for locking said key section so that the device value is prevented from being changed undesirably.
A programmable controller for sequentially controlling a controlled machine in accordance with a program, said programmable controller comprising:
- storage means having a storage area defined as a device;
- a key for entering data and invalidating operation of said key so that said key is in a lock state;
- setting and changing means for setting a device value in the storage area of said storage means or changing the device value set in the storage area based on the data entered by operating said key;
- and
- a display section for displaying the device value set in the storage area of said storage means, wherein
- said display section includes a first display mode displaying the device value set in the storage area and a second display mode displaying at least one of a running or stopped status of a user program, and said display section includes switching means for switching between the first display mode and the second display mode.
Dependencies are inferred from the claim text.