Method and systems for use with an industrial controller
First Claim
1. A method of displaying one or more instructions of a source program utilizing a computer system having a display device, wherein the source program is compilable into a control program executable by a controller which is capable of controlling the operation of one or more devices, the method comprising the steps of:
- receiving the one or more instructions of the source program; and
displaying, on the display device, a ladder diagram representative of at least one of the one or more instructions, the ladder diagram comprising a graphical interconnection of one or more schematic elements, wherein at least one of the one or more schematic elements has a corresponding display width which is variable.
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Accused Products
Abstract
A method and system for generating a control program executable by an industrial controller, wherein a source program is displayed using a variable width ladder diagram. Instructions of a source program are received by a host computer, wherein the source program is compilable into the control program. A ladder diagram representative of at least one of the instructions of the source program is displayed on a display device. The ladder diagram comprises a graphical interconnection of schematic elements, at least one of which having a corresponding display width which is variable. The corresponding display width is varied in dependence upon the greater of a corresponding symbol display width and a corresponding label display width. A method and system for data communication with the industrial controller uses a hybrid error detection code. Each transmitted packet of data is augmented with either a Fletcher checksum code if the length of the packet is less than a predetermined packet length threshold, or a CCITT-16 cyclic redundancy check code if the length of the packet is greater than or equal to the predetermined packet length threshold.
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Citations
36 Claims
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1. A method of displaying one or more instructions of a source program utilizing a computer system having a display device, wherein the source program is compilable into a control program executable by a controller which is capable of controlling the operation of one or more devices, the method comprising the steps of:
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receiving the one or more instructions of the source program; and displaying, on the display device, a ladder diagram representative of at least one of the one or more instructions, the ladder diagram comprising a graphical interconnection of one or more schematic elements, wherein at least one of the one or more schematic elements has a corresponding display width which is variable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system for displaying one or more instructions of a source program utilizing a computer system having a display device, wherein the source program is compilable into a control program executable by a controller which is capable of controlling the operation of one or more devices, the system comprising:
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receiving means for receiving the one or more instructions of the source program; and variable width display means for displaying on the display device a ladder diagram representative of at least one of the one or more instructions, the ladder diagram comprising a graphical interconnection of one or more schematic elements, wherein at least one of the one or more schematic elements has a corresponding display width which is variable. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification