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Signal input/output unit

A technology for signal input and output devices, applied in coupling devices, parts of connecting devices, devices for preventing wrong connection, etc., and can solve problems such as large volume

Inactive Publication Date: 2004-07-14
SMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When using this traditional signal input / output device, a control system must have a large volume, and if it is necessary to provide another signal input part or another signal output part, a sensor needs to be added, and one is controlled by an electromagnetic coil. When distributing the valve pipe or similar equipment on this column, it is necessary to increase a space for installing the control system
In addition, the complex wiring of the signal input section, the signal output section, and the programmable controller requires a lot of labor to maintain and monitor the signal input / output device, the programmable controller, or the like

Method used

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  • Signal input/output unit
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Examples

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Embodiment Construction

[0011] Figure 1 shows a signal input system 80 in which a signal input device 10 according to this embodiment of the invention is used for a cylinder, a product conveying section or the like.

[0012] The signal input system 80 includes a signal input device 10, an air cylinder 70, a product delivery section 82, and pressure switches 94,98. The cylinder 70 has position sensing sensors, such as switches 72, 74, for sensing a stroke position of a piston not shown. Switches 72, 74 derive signals by sensing the magnetic field of a magnet that moves with the piston. The detection signals derived by the switches 72, 74 are sent to the connectors 46a, 48a of a signal input unit 16a of the signal input device 10 through signal cables 76, 78 as described later. The product transfer section 82 has limit switches 86 , 88 for detecting a position of a workpiece 84 . The limit switches 86 , 88 derive signals by detecting the conveyed position of the workpiece 84 . The detection signals ...

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Abstract

A signal input unit transmits detection signals derived from sensors such as switches, limit switches, or pressure switches to a programmable controller by means of serial transmission. A signal output unit transmits control signals from the programmable controller to control apparatuses such as solenoid-operated valve manifolds, indicator lamps, and buzzers by means of parallel transmission. The signal input units and the signal output units are integrated with each other into one unit and a number thereof is changeable. Further, an intermediate section and an end block are integrally assembled to the signal input units and the signal output units to construct a signal input / output apparatus.

Description

technical field [0001] The present invention relates to a signal input / output device. In particular, the present invention relates to a signal input / output device having at least one signal input section for transmitting an input signal from a sensor, a switch, or the like to a programmable controller via a serial transmission, and / or at least one output signal section for transmitting an output signal from the programmable controller to a solenoid-controlled distribution valve tube or similar by parallel transmission, wherein some signal input sections and signal output sections can be changed in this way , so that no wiring is required. Background technique [0002] A conventional signal input / output device includes a signal input section and a signal output section for performing transferring a signal from an input device such as a sensor and a switch on a cylinder, or from an output device such as an electromagnetic coil to control the dispensing valve tube and an in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/02G06F13/10H01R4/50H01R13/629H01R13/639H01R13/641H05K7/14
CPCH05K7/1484H01R13/641H01R13/6395H05K7/1478Y10S439/928H05K7/1472H05K7/1468G06F13/10H01R4/50G05B19/02H01R13/629
Inventor 森川文夫
Owner SMC CORP