Programmable controller

Details Programmable controller Programmable controller

1978-04-12

1981-09-29

Ruggiero, Joseph F.

Boots, shoes, and leggings

364900, G06F 1546

Patent

active

042926661

ABSTRACT:
A small, low cost, programmable controller is described capable of solving user programs represented in networks having up to seven rows and eleven columns. A column solver is utilized to provide efficient and fast solution of the user control network. The programmable controller also solves calculate functions having multiple outputs to facilitate use of the output information in the control program.
A programming panel using a CRT display shows one or more selected control networks and, in conjunction with the central processing unit of the programmable controller, provides for the insertion of networks between two existing networks. Since the networks are solved by the controller mainframe in a sequential fashion, this network insertion allows the user to optimize his or her control program when solution order of the networks is important.
The output coil numbers of network rows may also be assigned by the user independent of their placement in the control program to further facilitate programming the controller. The programming panel includes a movable cursor on the CRT display which, in conjunction with a light-emitting diode (LED), allows the user to monitor the real-time power flow at any particular point in the displayed ladder diagram network. Specialized search features can also be specified by the user to simplify monitoring and de-bugging the control program.

REFERENCES:
patent: 3686639 (1972-08-01), Fletcher
patent: 3868648 (1975-02-01), Levin
patent: 3930233 (1975-12-01), Morley et al.
patent: 3944984 (1976-03-01), Morley et al.
patent: 3964026 (1976-06-01), Vamauchi et al.
patent: 3975622 (1976-08-01), Horn et al.
patent: 3976981 (1976-08-01), Bowden
patent: 4021783 (1977-05-01), Highberger
patent: 4038533 (1977-07-01), Dummermuth et al.
patent: 4115853 (1978-09-01), Dummermuth
Allen-Bradley, "Users Manual for the PLC-2 Programmable Controller," Bulletin 1722, Catalog 1772-UM, Part No. 634873-50, (Fourth Edition Jan. 17, 1978) pp. 3-79, 3-82, 3-83.
Instruments and Control Systems, May 1978, "ICS Guide to Programmable Controllers," pp. 25-27, 31, 38, 39.
Jeffery et al., "Retrofitting with CNC," 15th Numerical Control Society Annual Meeting & Technical Conference, Apr. 9-12, 1978, Chicago, pp. 194-205, 197-200.

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