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US 6,324,057 B1Granted
Terminal block supported printed circuit cards for compact programmable logic controller
AssigneeRockwell Automation Technologies, Inc.
InventorsMichael S. Baran, Shawn D. Cloran
Life of this patent
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Abstract
A compact programmable logic controller provides a floating mounting of circuit cards carried by opposed terminal blocks of the industrial controller the latter only which are directly mounted to the housing. Positioning of the cards between opposed connector blocks prevents torsion on the cards resulting from unbalanced forces on the terminal blocks and provides an extremely rigid structure.
Claims14
An industrial controller comprising:
- a housing providing walls extending upward from a base;
- a first circuit card positioned within the housing;
- first and second terminal blocks having upper portions providing terminal blocks for connecting input and output lines, and downwardly extending legs attached to opposing edges of an upper surface of the first circuit card;
- and
- a second circuit card positioned within the housing above the first circuit card and between the upper portions of the terminal blocks;
- whereby the first and second circuit cards form a structure with the terminal blocks that is rigid independent of attachments to the housing.
3 more elements
An industrial controller comprising:
- a housing providing walls extending upward from a base;
- a first circuit card positioned within the housing;
- first and second terminal blocks having upper faces providing terminal blocks for connecting input and output lines, and downwardly extending legs attached to opposing edges of an upper surface of the first circuit card;
- a second circuit card positioned within the housing above the first circuit card and between the terminal blocks;
- wherein the first and second terminal blocks are connected at outer edges to the upper edges of opposing walls of the housing and at inner portions to opposing edges of the second circuit card.
2 more elements
Dependencies are inferred from the claim text.