Unlock instant, AI-driven research and patent intelligence for your innovation.

Programmable controller

A controller and program technology, applied in program control, program control design, electrical program control, etc., can solve the problem of lower overall efficiency of sequence programs

Inactive Publication Date: 2005-03-09
FANUC LTD
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the case where a plurality of sequence programs are executed in parallel according to a predetermined execution time setting ratio, however, if the execution time of the sequence program for the digital control section and the execution time of the sequence program for the peripheral device are not The overall efficiency of sequence programs is sometimes reduced when the ratio is appropriate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Programmable controller
  • Programmable controller
  • Programmable controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 It is a block diagram of the principle part of the programmable controller of the present invention. The programmable controller 10 includes a processor 11 for executing sequence control, a RAM 12 for storing system software, a program memory 13 composed of a non-volatile RAM or the like for storing sequence programs, and a signal memory 14 for storing DI / DO signal (input / output signal), a working RAM 15 and a backup memory 20, all of which are connected to each other through a bus 21. Also, a timer 16 for measuring a processing time etc. is connected to the bus 21, an I / O interface 17 is connected to input / output devices, a display device 18 is formed of a liquid crystal display, CRT or the like, a data input device 19, such as a keyboard, for inputting data and commands. In the case where the programmable controller 10 is in contact with a digital controller and is connected to the digital control part through the bus 21, since the display unit and the inp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A programmable controller capable of freely changing the execution time ratio of a plurality of sequence programs. A plurality of execution time ratio tables storing different execution time ratios of sequence programs are set in a backup memory. Upon start of the power supply, the execution time ratio set in the first table T1 is copied to a work RAM, and the sequence programs are executed in the thus-copied execution time ratio. A bit specifying a table is set in the sequence programs, or a table is specified by the operator. When the set bit is detected, the execution time ratio of the table specified by the bit is copied to the work RAM, and the sequence programs are executed thereafter in this execution time ratio. The execution time ratio can be altered at a desired time in the execution of the sequence programs.

Description

technical field [0001] The invention relates to a programmable controller for executing sequence-to-sequence programs. Background technique [0002] A programmable controller executes a sequence program to complete the control of the digital control part of a digital controller (M function M-function, T function T-function), and also completes the control of peripheral equipment, such as workpiece handling equipment and automatic tools Control of the indexing device. [0003] As a result of recent improvements in machine functionality, it is often the case that a new peripheral device is added to an existing system. In these cases, a control program for controlling the additional peripheral device is usually added as a sequence program for the programmable controller. Also, the control program can be incorporated as a sequence program to automate the operation of the machine. Therefore, as the number of sequence programs executed by the programmable controller increases, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/46G05B19/042G05B19/05G05B19/408G06F9/48
CPCG05B19/042G05B2219/25343G06F9/4881G05B2219/23392
Inventor 长岛范武丸山丰和
Owner FANUC LTD