Controller

• US 20010053619A1
• Filed: 02/05/2001
• Published: 12/20/2001
• Est. Priority Date: 11/29/1996
• Status: Active Grant

• Current Assignee: Masaru Imoto
• Original Assignee: Masaru Imoto
• Inventors: Imoto, Masaru
• Granted Patent: US 6,449,515 B2
• Time in Patent Office: Days
• US Class Current: 439/55
• CPC Class Codes: G05B 19/0423 Input/output
• CPC Class Codes: G05B 19/05 Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
• CPC Class Codes: H05K 7/1428 for small modular apparatus with terminal block
• CPC Class Codes: H05K 7/1468 Mechanical features of input/output (I/O) modules
• CPC Class Codes: H05K 7/1479 including decentralized modules, e.g. connected to other modules using fieldbus
• CPC Class Codes: H05K 7/1481 User interface, e.g. status displays; Programming interface, e.g. connector for computer programming; Monitoring
• CPC Class Codes: H05K 7/1484 Electrical diagrams relating to constructional features, e.g. signal routing within PLC; Provisions for disaster recovery, e.g. redundant systems

Abstract

A controller in which a dead space for wiring is reduced, its input-and-output response time is shortened, and miniaturization and cost reduction is ensured. A RS-232 connector connection unit (6) and a peripheral connector connection unit (7) are lowered than a projection (4) provided with displays (12₁, to 12₄) so that a cable connector does not exceed the projection (4) when the connector is mounted on the connector connection units (6) and (7).

Claims

1. A controller comprising

a connector connection unit for connection with a cable connector,

a housing having difference in level and a display disposed on a higher level section of the housing,

one board disposed in parallel with a side wall of said housing,

another board disposed to cross said one board, said one board being positioned on the higher level section of said housing and said connector unit on said another board being positioned on a lower level section of said housing.

2. A controller according to

claim 1

in which said difference in level corresponds to height of a connector connected with said connector connection unit.

3. A controller according to

claim 1

in which said another board is provided with a power supply circuit and said one board is provided with a control circuit.

4. A controller according to

claim 1

which receives input data from an input unit through a terminal and produces output data to be applied to an output unit through said terminal, and further comprising communication means for executing a serial communication with said terminal to receive and send said input and output data.