WO2014188471A1 - I/o mix unit - Google Patents
I/o mix unit Download PDFInfo
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- WO2014188471A1 WO2014188471A1 PCT/JP2013/003311 JP2013003311W WO2014188471A1 WO 2014188471 A1 WO2014188471 A1 WO 2014188471A1 JP 2013003311 W JP2013003311 W JP 2013003311W WO 2014188471 A1 WO2014188471 A1 WO 2014188471A1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
Definitions
- the present invention relates to a digital input / output mixing unit mounted on a sequencer.
- Patent Document 1 describes a method of increasing the number of input / output points of an analog input / output mixed unit.
- the current input / output mixing unit has a fixed number of input points and output points, such as 16 input points, 16 output points, 32 input points, and 32 output points, the input / output points are changed. Therefore, there is a problem that it is necessary to add an input unit and an output unit separately and to incorporate the system into the system in order to compensate for the shortage score.
- the present invention has been made in view of the above, and an object thereof is to obtain an input / output mixed unit in which the number of input / output terminals can be flexibly changed.
- the present invention provides an input / output mixing unit having an input function and an output function, and an input circuit for inputting an external signal to the inside, and an input to the inside.
- An output circuit that outputs a signal to the outside, a changeover switch that switches connection between the input circuit and the output circuit, and a plurality of input / output terminals connected to the changeover switch, and the changeover switch is provided for each input / output terminal I did it.
- the ratio of the number of input points and output points can be adjusted according to the intended use, eliminating the need to purchase additional input units and output units to make up for the shortage points, thus preventing additional costs and expansion of space. I can do it.
- FIG. 1 is a block diagram for explaining a sequencer system according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram for explaining the input / output mixing unit in the embodiment of the present invention.
- FIG. 3 is a block diagram for explaining an internal circuit of the input / output mixing unit.
- FIG. 4 is a circuit diagram for explaining an internal circuit for one input / output circuit in the input / output mixing unit.
- FIG. 1 is a block diagram illustrating a configuration of a sequencer system 1 using an input / output mixing unit according to an embodiment of the present invention.
- a sequencer CPU 300 that performs system control and an input / output mixing unit 400 are connected via a bus circuit such as a base to exchange input / output signals.
- the sequencer CPU 300 is connected to the display device 100 and the personal computer 200.
- the input / output mixing unit 400 has a socket 420 (see FIG. 2 (A)) having an input / output terminal group 410 (described in FIG. 2 (A)) composed of terminals for a specified number of points (for example, 16 points, 32 points, 64 points, etc.). A) description).
- the input function unit 500 that functions as an input terminal in the input / output terminal group 410 is connected to an input device 800 such as a switch or a sensor, while the output function unit 600 that functions as an output terminal in the input / output terminal group. Is connected to an external load 900.
- the input function unit 500 and the output function unit 600 select a connection target in accordance with the control target and purpose, and the selected connection target is connected.
- the input terminal is a terminal that inputs or receives a signal to the input / output mixing unit 400
- the output terminal is a terminal that outputs or transmits a signal to the input / output mixing unit 400.
- the input / output terminal group 410 is provided in the same slot 420 installed on the surface of the casing of the input / output mixing unit 400, and functions as an input terminal or an output terminal. ing.
- a plurality of slots are provided on the surface of the input / output mixing unit 400, and an input / output terminal group according to the present invention is provided for each slot. You may do it.
- the input / output mixing unit 400 is provided with an input / output function selection switch 700 such as a dip switch on the surface of the casing.
- the input / output function selection switch 700 can be set for each input / output terminal 411 of the input / output terminal group 410 to be used as an input function or an output function.
- the input / output mixing unit 400 is connected to the display screen of the display device 100 or the personal computer 200 connected to the sequencer CPU 300 via the sequencer CPU 300, and the input / output terminal 411 of the input / output terminal group 410 has either an input function or an output function. Displays the setting status whether it is set to.
- FIG. 3 shows an internal circuit example of the input / output mixing unit 400, that is, an internal circuit example for one input / output mixing unit.
- the input / output mixing unit 400 includes an internal circuit 440 such as an ASIC (application specific integrated circuit) that performs transmission / reception processing of input / output signals, and an input / output circuit 450 for one input / output terminal that can switch an input function and an output function. have.
- ASIC application specific integrated circuit
- the input / output circuits 450 are provided for the number of specification points (for example, 16 points, 32 points, 64 points, etc.), and are connected to the input / output terminals 411 of the input / output terminal group 410, respectively.
- the input / output circuit 450 is connected to an external circuit 1000 such as a switch or a load via an input / output terminal 411.
- the external circuit 1000 is a generic name for internal circuits of the external device 900 that is an input device 800 such as a switch or a sensor or an output device.
- the input / output circuit 450 for one input / output terminal is connected to the sequencer CPU ⁇ ⁇ ⁇ ⁇ 300 through an internal circuit 440 such as an ASIC and a bus circuit such as a base, and performs input and output of the sequencer CPU 300. ing. That is, when the input / output circuit 450 functions as an input function unit, the input / output circuit 450 transmits an input signal from the input device 800 such as a switch or a sensor to the sequencer CPU 300, whereas when it functions as an output function unit, the sequencer CPU A transmission signal such as a command for operating the external load 900 received from 300 is transmitted to the external load 900.
- the input / output circuit 450 includes an input circuit 451 and an output circuit 452 for each point, and among these circuits, a circuit connected to the input / output terminal 411 is switched by a changeover switch 453.
- the input circuit 451 is realized by an input resistor I700, a photocoupler I600, and a pull-down resistor I500
- the output circuit 452 is a current limiting resistor I100, a photocoupler I200, an output transistor I300, and a constant voltage circuit I400 for driving the photocoupler.
- the input circuit 451 and the output circuit 452 are provided in the number corresponding to the number of input / output terminals, respectively, so that both the input function and the output function can be supported.
- the changeover switch 453 is connected with an internal switch 453a connected with the setting status monitoring circuit 454 as a base point, an internal switch 453b that is a first changeover switch with an internal circuit 440 such as an ASIC as a base point, and an external circuit 1000 as a base point. And an internal switch 453c which is the second changeover switch.
- the internal switch 453c has an external circuit 1000 connected to the input / output terminal group 410 as an interface, and is connected to the external circuit 1000 using the input / output terminal 411 as a base point.
- switch 453 As this switch 453 is supplementarily shown in FIG. 3, internal switches 453a, 453b, and 453c are provided on an insulator, and an operation unit 454d is connected to the internal switches 453a, 453b, and 453c. Yes.
- the changeover switch 453 is configured so that the internal switches 453a, 453b, and 453c can be simultaneously switched in conjunction with each other by switching the operation unit 454d.
- the operation unit 453d is connected to the input / output function selection switch 700 so that the selection result of the input / output function selection switch 700 can be transmitted.
- the changeover switch 453 connects the internal switch 453b and the internal switch 453c to the input circuit 451 by the switching operation of the operation unit 453d, and the setting status
- the internal switch 453a connected to the monitoring circuit 454 is connected to the H side terminal (that is, the terminal whose voltage is High (5V, etc.)).
- the input / output terminal 411 connected to the internal switch 453c functions as an input terminal.
- the input / output mixing unit 400 takes in an input signal from a switch or sensor connected to a location corresponding to the external circuit 1000 and transmits the input signal to the sequencer CPU 300.
- the changeover switch 453 connects the internal switch 453b and the internal switch 453c to the output circuit 452 by the switching operation of the operation unit 454d.
- An internal switch 453a connected to the monitoring circuit 454 is connected to an L-side terminal (that is, a terminal whose voltage is Low (0V) when connected to the ground).
- the input / output terminal 411 connected to the internal switch 453c functions as an output terminal.
- the setting status monitoring circuit 454 is connected when the internal switch 453a is connected to the H side terminal and when the output circuit 452 is functioning.
- the internal switch 453a is connected to the L-side terminal, and the setting status is monitored by the voltage level of the connection destination terminal.
- the input / output mixing unit when the sequencer system is constructed using the input / output mixing unit 400, when the required number of input points does not match the number of output points, or after the input / output mixing unit is purchased, If you want to change the number of points and the number of output points, the ratio of the number of input points and output points can be adjusted according to the intended use, eliminating the need to purchase additional input units and output units to compensate for the shortage points. Cost and space expansion can be prevented.
- the internal switches 453a, 453b, 453c of the changeover switch 453 are linked to open / close by one operation unit 453d, so that the internal switches 453a, 453b, 453c installed at three locations. All can function as a circuit of the intended function (input function, output function) for each point, and human errors such as switching errors can be eliminated. Further, the switching of the circuits of the internal switches 453a, 453b, and 453c can be completed by one operation of the operation unit 453d.
- the input / output function selection switch 700 is installed outside the housing, so that the input function and the output function can be switched even when the input / output mixing unit 400 is incorporated in the system.
- the setting state can be easily visually confirmed.
- the setting state of the input / output function is displayed on the screen of the peripheral tool by connecting to the peripheral tool such as the display device 100 or the personal computer 200 via the sequencer CPU 300. Can do.
- the input / output terminals 411 of the input / output terminal group 410 of the input / output mixing unit 400 are set to either the input function or the output function.
- the input / output terminal 411 of the input / output terminal group 410 may have a setting for disabling transmission / reception of signals without any input function or output function.
- the input / output mixing unit 400 switches the function of the input / output terminals 411 in the input / output terminal group 410 to an input function or an output function by a physical switch such as a dip switch.
- the function of the input / output terminal 411 may be switched to a force function or an output function by an electrical changeover switch.
- the input / output mixing unit 400 sets an electrical changeover switch based on a changeover command generated by operating an operation screen such as a GUI displayed on the screen of the display device 100 or the personal computer 200 or the like.
- the function of the input / output terminal 411 may be switched to an input function or an output function.
- the input / output mixing unit according to the present invention is suitable for adjusting the number of input terminals and the number of output terminals.
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Abstract
Provided is an I/O mix unit having an input function and an output function, comprising: an input circuit which internally receives input of an external signal; an output circuit which externally outputs the internally received signal; a switch which switches a connection between the input circuit and the output circuit; and a plurality of I/O terminals which are connected to the switch. The switch is disposed upon each of the I/O terminals. Thus, in building a sequencer system using an I/O mix unit, if the required numbers of input points and output points do not match, or if changing the numbers of input points and output points after purchasing the I/O mix unit is desired, it is possible to adjust the proportion of input points and output points according to application, and it will be unnecessary to add input units or output units to supplement insufficient quantities of points.
Description
本発明は、シーケンサに装着されるデジタル入出力混合ユニットに関する。
The present invention relates to a digital input / output mixing unit mounted on a sequencer.
シーケンサでシステム構築する場合、限られた設置スペースや予算でシステム構築するため、シーケンサの小型化や低コスト化が望まれている。
When building a system with a sequencer, it is desired to reduce the size and cost of the sequencer in order to build a system with a limited installation space and budget.
この為、シーケンサシステムを構成するデジタルＩ／Ｏユニットにおいては、入出力混合ユニットのように入力機能と出力機能を１つのユニットに組み込こむことにより、入力機能のみを有する入力ユニットと出力機能のみを有する出力ユニットとをそれぞれ１ユニットずつ用意する場合に比べて、スペースメリットやコストメリットを確保するようになされている。
For this reason, in the digital I / O unit constituting the sequencer system, only the input function and the output function having only the input function can be obtained by incorporating the input function and the output function in one unit like the input / output mixed unit. Compared to a case where one output unit having each is prepared, space merit and cost merit are ensured.
しかしながら、現状の入出力混合ユニットは、入力点数と出力点数が、例えば入力１６点、出力１６点や、入力３２点、出力３２点のように固定であるため、入力／出力の点数変更をするためには、不足分の点数を補うために入力ユニットや出力ユニットを別途追加し、システムに組み込む必要があるという課題がある。
However, since the current input / output mixing unit has a fixed number of input points and output points, such as 16 input points, 16 output points, 32 input points, and 32 output points, the input / output points are changed. Therefore, there is a problem that it is necessary to add an input unit and an output unit separately and to incorporate the system into the system in order to compensate for the shortage score.
本発明は、上記に鑑みてなされたものであり、入力／出力の端子点数を柔軟に変更可能とした入出力混合ユニットを得ることを目的とする。
The present invention has been made in view of the above, and an object thereof is to obtain an input / output mixed unit in which the number of input / output terminals can be flexibly changed.
上述した問題を解決し、目的を達成するために、本発明は、入力機能と出力機能とを有する入出力混合ユニットおいて、外部からの信号を内部に入力する入力回路と、内部に入力した信号を外部に出力する出力回路と、入力回路と出力回路との接続を切替える切替えスイッチと、当該切替えスイッチに接続された複数の入出力端子とを備え、当該切替えスイッチを入出力端子毎に設けるようにした。
In order to solve the above-described problems and achieve the object, the present invention provides an input / output mixing unit having an input function and an output function, and an input circuit for inputting an external signal to the inside, and an input to the inside. An output circuit that outputs a signal to the outside, a changeover switch that switches connection between the input circuit and the output circuit, and a plurality of input / output terminals connected to the changeover switch, and the changeover switch is provided for each input / output terminal I did it.
本発明によれば、入出力混合ユニットを用いてシーケンサシステムを構築する際に、必要な入力点数と出力点数が一致しない場合や、入出力混合ユニットの購入後に入力点数と出力点数を変更したい場合に、使用用途に合わせて入力点数、出力点数の点数比が調整可能となり、不足分の点数を補うための入力ユニットや出力ユニットを追加購入することが無くなり、追加コストやスペースの拡大を防ぐことが出来る。
According to the present invention, when building a sequencer system using an input / output mixing unit, if the required number of input points does not match the number of output points, or if you want to change the number of input points and output points after purchasing the input / output mixing unit In addition, the ratio of the number of input points and output points can be adjusted according to the intended use, eliminating the need to purchase additional input units and output units to make up for the shortage points, thus preventing additional costs and expansion of space. I can do it.
この発明にかかる入出力混合ユニットの好適な実施の形態を詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。
A preferred embodiment of an input / output mixing unit according to the present invention will be described in detail. Note that the present invention is not limited to the embodiments.
実施の形態１．
図１は、本発明の実施の形態に係る入出力混合ユニットを用いたシーケンサシステム１の構成を説明するブロック図である。図示するように、シーケンサシステム１において、システム制御を行うシーケンサＣＰＵ３００と入出力混合ユニット４００とが、ベース等のバス回路を介して接続されており、入出力信号の授受を行うようになされている。シーケンサＣＰＵ３００は、表示機１００及びパソコン２００が接続されている。Embodiment 1 FIG.
FIG. 1 is a block diagram illustrating a configuration of asequencer system 1 using an input / output mixing unit according to an embodiment of the present invention. As shown in the figure, in the sequencer system 1, a sequencer CPU 300 that performs system control and an input / output mixing unit 400 are connected via a bus circuit such as a base to exchange input / output signals. . The sequencer CPU 300 is connected to the display device 100 and the personal computer 200.
図１は、本発明の実施の形態に係る入出力混合ユニットを用いたシーケンサシステム１の構成を説明するブロック図である。図示するように、シーケンサシステム１において、システム制御を行うシーケンサＣＰＵ３００と入出力混合ユニット４００とが、ベース等のバス回路を介して接続されており、入出力信号の授受を行うようになされている。シーケンサＣＰＵ３００は、表示機１００及びパソコン２００が接続されている。
FIG. 1 is a block diagram illustrating a configuration of a
そして、入出力混合ユニット４００は、仕様点数（例えば１６点、３２点、６４点等）分の端子からなる入出力端子群４１０（図２（Ａ）に記載）を有するソケット４２０（図２（Ａ）記載）を備えている。この入出力端子群４１０のうち入力端子として機能する入力機能部５００には、スイッチやセンサ等の入力機器８００が接続され、一方、当該入出力端子群のうち出力端子として機能する出力機能部６００には外部負荷９００が接続されている。
The input / output mixing unit 400 has a socket 420 (see FIG. 2 (A)) having an input / output terminal group 410 (described in FIG. 2 (A)) composed of terminals for a specified number of points (for example, 16 points, 32 points, 64 points, etc.). A) description). The input function unit 500 that functions as an input terminal in the input / output terminal group 410 is connected to an input device 800 such as a switch or a sensor, while the output function unit 600 that functions as an output terminal in the input / output terminal group. Is connected to an external load 900.
なお、入力機能部５００、出力機能部６００には、制御対象や目的に合わせて接続対象が選択され、当該選択された接続対象が接続される。そして、入力端子とは、入出力混合ユニット４００に対して信号を入力、すなわち受信する端子をいい、出力端子とは、入出力混合ユニット４００に対して信号を出力、すなわち送信する端子をいう。
The input function unit 500 and the output function unit 600 select a connection target in accordance with the control target and purpose, and the selected connection target is connected. The input terminal is a terminal that inputs or receives a signal to the input / output mixing unit 400, and the output terminal is a terminal that outputs or transmits a signal to the input / output mixing unit 400.
入出力端子群４１０は、図２（Ａ）に示すように、入出力混合ユニット４００の筐体表面に設置された同一スロット４２０内に設けられ、入力端子、又は出力端子として機能するようになされている。なお、他の実施の形態として、図２（Ｂ）に示すように、入出力混合ユニット４００の筐体表面に複数のスロットを設置し、当該スロット毎に本発明にかかる入出力端子群を設けるようにしても良い。
As shown in FIG. 2A, the input / output terminal group 410 is provided in the same slot 420 installed on the surface of the casing of the input / output mixing unit 400, and functions as an input terminal or an output terminal. ing. As another embodiment, as shown in FIG. 2B, a plurality of slots are provided on the surface of the input / output mixing unit 400, and an input / output terminal group according to the present invention is provided for each slot. You may do it.
入出力混合ユニット４００は、筐体表面に、例えばディップスイッチからなる入出力機能選定スイッチ７００が設けられている。入出力機能選定スイッチ７００は、入出力端子群４１０の入出力端子４１１毎に、入力機能と出力機能とのどちらとして使用するかを設定し得るようになされている。
The input / output mixing unit 400 is provided with an input / output function selection switch 700 such as a dip switch on the surface of the casing. The input / output function selection switch 700 can be set for each input / output terminal 411 of the input / output terminal group 410 to be used as an input function or an output function.
また、入出力混合ユニット４００は、シーケンサＣＰＵ３００を介して当該シーケンサＣＰＵ３００に接続された表示機１００やパソコン２００表示画面に、入出力端子群４１０の入出力端子４１１が入力機能と出力機能とのどちらに設定されているかという設定状況を表示する。
Further, the input / output mixing unit 400 is connected to the display screen of the display device 100 or the personal computer 200 connected to the sequencer CPU 300 via the sequencer CPU 300, and the input / output terminal 411 of the input / output terminal group 410 has either an input function or an output function. Displays the setting status whether it is set to.
図３は、入出力混合ユニット４００の内部回路例、すなわち入出力混合ユニット１ユニット分の内部回路例を示している。入出力混合ユニット４００は、入出力信号の送受信処理を行うＡＳＩＣ（application specific integrated circuit）等の内部回路４４０と、入力機能と出力機能を切り替え可能な入出力端子１点分の入出力回路４５０とを有している。
FIG. 3 shows an internal circuit example of the input / output mixing unit 400, that is, an internal circuit example for one input / output mixing unit. The input / output mixing unit 400 includes an internal circuit 440 such as an ASIC (application specific integrated circuit) that performs transmission / reception processing of input / output signals, and an input / output circuit 450 for one input / output terminal that can switch an input function and an output function. have.
この入出力回路４５０は、仕様点数（例えば１６点、３２点、６４点等）分設けられており、各々、入出力端子群４１０の入出力端子４１１に接続されている。そして、入出力回路４５０は、入出力端子４１１を介してスイッチや負荷等の外部回路１０００に接続されている。なお、外部回路１０００は、スイッチやセンサ等の入力機器８００や出力機器である外部負荷９００の内部回路の総称を言う。
The input / output circuits 450 are provided for the number of specification points (for example, 16 points, 32 points, 64 points, etc.), and are connected to the input / output terminals 411 of the input / output terminal group 410, respectively. The input / output circuit 450 is connected to an external circuit 1000 such as a switch or a load via an input / output terminal 411. The external circuit 1000 is a generic name for internal circuits of the external device 900 that is an input device 800 such as a switch or a sensor or an output device.
また、入出力端子１点分の入出力回路４５０は、ＡＳＩＣ等の内部回路４４０及びベース等のバス回路を通して、シーケンサＣＰＵ ３００と接続されており、当該シーケンサＣＰＵ ３００入と出力信号の授受を行なっている。すなわち、入出力回路４５０は、入力機能部として機能する場合は、スイッチやセンサ等の入力機器８００からの入力信号をシーケンサＣＰＵ ３００に送信し、一方、出力機能部として機能する場合は、シーケンサＣＰＵ ３００から受け取った外部負荷９００を動作させる為のコマンド等の送信信号を、当該外部負荷９００に送信する。
Further, the input / output circuit 450 for one input / output terminal is connected to the sequencer CPU を 通 し て 300 through an internal circuit 440 such as an ASIC and a bus circuit such as a base, and performs input and output of the sequencer CPU 300. ing. That is, when the input / output circuit 450 functions as an input function unit, the input / output circuit 450 transmits an input signal from the input device 800 such as a switch or a sensor to the sequencer CPU 300, whereas when it functions as an output function unit, the sequencer CPU A transmission signal such as a command for operating the external load 900 received from 300 is transmitted to the external load 900.
ここで、１点分の入出力回路４５０の詳細を、図４に示す入出力混合ユニットの内部回路例（入出力回路１点分）を用いて説明する。図４に示すように、入出力回路４５０は、各点毎に入力回路４５１と出力回路４５２とを備えており、これら回路のうち入出力端子４１１に接続される回路は切替えスイッチ４５３によって切替える。
Here, the details of the input / output circuit 450 for one point will be described using the internal circuit example (for one input / output circuit) of the input / output mixing unit shown in FIG. As shown in FIG. 4, the input / output circuit 450 includes an input circuit 451 and an output circuit 452 for each point, and among these circuits, a circuit connected to the input / output terminal 411 is switched by a changeover switch 453.
一般的に入力回路４５１は入力抵抗Ｉ７００とフォトカプラＩ６００、プルダウン抵抗Ｉ５００によって実現され、出力回路４５２は電流制限抵抗Ｉ１００、フォトカプラＩ２００、出力トランジスタＩ３００、またフォトカプラ駆動用の定電圧回路Ｉ４００によって実現される。そして、本発明における入出力混合ユニットでは、入力回路４５１と出力回路４５２をそれぞれ入出力端子点数分備えることにより、入力機能又は出力機能のどちらの機能にも対応することができる。
In general, the input circuit 451 is realized by an input resistor I700, a photocoupler I600, and a pull-down resistor I500, and the output circuit 452 is a current limiting resistor I100, a photocoupler I200, an output transistor I300, and a constant voltage circuit I400 for driving the photocoupler. Realized. In the input / output mixing unit according to the present invention, the input circuit 451 and the output circuit 452 are provided in the number corresponding to the number of input / output terminals, respectively, so that both the input function and the output function can be supported.
切替えスイッチ４５３は、設定状況監視回路４５４を基点として接続した内部スイッチ４５３ａと、ＡＳＩＣ等の内部回路４４０を基点として接続した第１の切替えスイッチである内部スイッチ４５３ｂと、外部回路１０００を基点として接続した第２の切替えスイッチである内部スイッチ４５３ｃとを有している。この内部スイッチ４５３ｃは、外部回路１０００がインターフェイスとして入出力端子群４１０に接続されており、入出力端子４１１を基点として外部回路１０００に接続されている。
The changeover switch 453 is connected with an internal switch 453a connected with the setting status monitoring circuit 454 as a base point, an internal switch 453b that is a first changeover switch with an internal circuit 440 such as an ASIC as a base point, and an external circuit 1000 as a base point. And an internal switch 453c which is the second changeover switch. The internal switch 453c has an external circuit 1000 connected to the input / output terminal group 410 as an interface, and is connected to the external circuit 1000 using the input / output terminal 411 as a base point.
この切替えスイッチ４５３は、図３で補足して示すように、内部スイッチ４５３ａ、４５３ｂ、４５３ｃが絶縁体上に設けられ、当該内部スイッチ４５３ａ、４５３ｂ、４５３ｃに操作部４５４ｄが連結して取り付けられている。切替えスイッチ４５３は、操作部４５４ｄを切り替え操作することにより、内部スイッチ４５３ａ、４５３ｂ、４５３ｃを同時に連動して切り替えることができるようになされている。そして、この操作部４５３ｄは、入出力機能選定スイッチ７００と連結しており、入出力機能選定スイッチ７００での選定結果が伝達し得るようになされている。
As this switch 453 is supplementarily shown in FIG. 3, internal switches 453a, 453b, and 453c are provided on an insulator, and an operation unit 454d is connected to the internal switches 453a, 453b, and 453c. Yes. The changeover switch 453 is configured so that the internal switches 453a, 453b, and 453c can be simultaneously switched in conjunction with each other by switching the operation unit 454d. The operation unit 453d is connected to the input / output function selection switch 700 so that the selection result of the input / output function selection switch 700 can be transmitted.
すなわち、切替えスイッチ４５３は、入出力機能選定スイッチ７００がユーザ操作によって入力機能に設定されると、操作部４５３ｄの切替え操作によって内部スイッチ４５３ｂと内部スイッチ４５３ｃとを入力回路４５１に接続し、設定状況監視回路４５４に接続される内部スイッチ４５３ａがＨ側端子（すなわち、電圧がＨｉｇｈ(５Ｖ等)の端子）に接続される。これにより、内部スイッチ４５３ｃに接続された入出力端子４１１は入力端子として機能する。そして、入力回路４５１が機能している場合、入出力混合ユニット４００は、外部回路１０００に当たる箇所に接続したスイッチやセンサから入力信号を取りこんで、当該入力信号をシーケンサＣＰＵ３００に伝達する。
That is, when the input / output function selection switch 700 is set to the input function by the user operation, the changeover switch 453 connects the internal switch 453b and the internal switch 453c to the input circuit 451 by the switching operation of the operation unit 453d, and the setting status The internal switch 453a connected to the monitoring circuit 454 is connected to the H side terminal (that is, the terminal whose voltage is High (5V, etc.)). Thereby, the input / output terminal 411 connected to the internal switch 453c functions as an input terminal. When the input circuit 451 is functioning, the input / output mixing unit 400 takes in an input signal from a switch or sensor connected to a location corresponding to the external circuit 1000 and transmits the input signal to the sequencer CPU 300.
一方、切替えスイッチ４５３は、入出力機能選定スイッチ７００がユーザ操作によって出力機能に設定されると、操作部４５４ｄの切替え操作によって内部スイッチ４５３ｂと内部スイッチ４５３ｃとを出力回路４５２に接続し、設定状況監視回路４５４に接続される内部スイッチ４５３ａがＬ側端子（すなわち、電圧がグランドに接続してＬｏｗ(０Ｖ)となる端子）に接続される。これにより、内部スイッチ４５３ｃに接続された入出力端子４１１は出力端子として機能する。そして、出力回路４５２が機能している場合、入出力混合ユニット４００は、外部回路１０００に当たる箇所に接続した負荷に、シーケンサＣＰＵ３００から受信した出力信号を伝達し、負荷を駆動する。
On the other hand, when the input / output function selection switch 700 is set to the output function by the user operation, the changeover switch 453 connects the internal switch 453b and the internal switch 453c to the output circuit 452 by the switching operation of the operation unit 454d. An internal switch 453a connected to the monitoring circuit 454 is connected to an L-side terminal (that is, a terminal whose voltage is Low (0V) when connected to the ground). Thereby, the input / output terminal 411 connected to the internal switch 453c functions as an output terminal. When the output circuit 452 is functioning, the input / output mixing unit 400 transmits the output signal received from the sequencer CPU 300 to the load connected to the location corresponding to the external circuit 1000 to drive the load.
加えて、設定状況監視回路４５４は、図４に示すように、入力回路４５１が機能している時は、内部スイッチ４５３ａがＨ側端子に接続され、出力回路４５２が機能している時は、内部スイッチ４５３ａがＬ側端子に接続され、接続先の端子の電圧の高低によって設定状況を監視している。
In addition, as shown in FIG. 4, when the input circuit 451 is functioning, the setting status monitoring circuit 454 is connected when the internal switch 453a is connected to the H side terminal and when the output circuit 452 is functioning. The internal switch 453a is connected to the L-side terminal, and the setting status is monitored by the voltage level of the connection destination terminal.
よって、本発明にかかる入出力混合ユニットにおいては、入出力混合ユニット４００を用いてシーケンサシステムを構築する際に、必要な入力点数と出力点数が一致しない場合や、入出力混合ユニットの購入後に入力点数と出力点数を変更したい場合に、使用用途に合わせて入力点数、出力点数の点数比が調整可能となり、不足分の点数を補うための入力ユニットや出力ユニットを追加購入することが無くなり、追加コストやスペースの拡大を防ぐことが出来る。
Therefore, in the input / output mixing unit according to the present invention, when the sequencer system is constructed using the input / output mixing unit 400, when the required number of input points does not match the number of output points, or after the input / output mixing unit is purchased, If you want to change the number of points and the number of output points, the ratio of the number of input points and output points can be adjusted according to the intended use, eliminating the need to purchase additional input units and output units to compensate for the shortage points. Cost and space expansion can be prevented.
また、本発明にかかる入出力混合ユニットにおいては、切替えスイッチ４５３の内部スイッチ４５３ａ、４５３ｂ、４５３ｃを１つの操作部４５３ｄで開閉を連動させることによって、３箇所に設置した内部スイッチ４５３ａ、４５３ｂ、４５３ｃ全てが、各点毎に意図した機能（入力機能、出力機能）の回路として機能するようにし、切換えミス等のヒューマンエラーをなくすことが出来る。また、操作部４５３ｄの１動作にて内部スイッチ４５３ａ、４５３ｂ、４５３ｃの回路の切換えを完了できる。
Further, in the input / output mixing unit according to the present invention, the internal switches 453a, 453b, 453c of the changeover switch 453 are linked to open / close by one operation unit 453d, so that the internal switches 453a, 453b, 453c installed at three locations. All can function as a circuit of the intended function (input function, output function) for each point, and human errors such as switching errors can be eliminated. Further, the switching of the circuits of the internal switches 453a, 453b, and 453c can be completed by one operation of the operation unit 453d.
また、本発明にかかる入出力混合ユニットにおいては、入出力機能選定スイッチ７００を筺体外部に設置することによって、入出力混合ユニット４００をシステムに組み込んでいる状態でも、入力機能、出力機能の切り替えを可能とし、また設定状態を簡単に視認できる。
In the input / output mixing unit according to the present invention, the input / output function selection switch 700 is installed outside the housing, so that the input function and the output function can be switched even when the input / output mixing unit 400 is incorporated in the system. The setting state can be easily visually confirmed.
また、本発明にかかる入出力混合ユニットにおいては、シーケンサＣＰＵ３００を介して表示機１００やパソコン２００などの周辺ツールと接続することにより、周辺ツールの画面上に入出力機能の設定状態を表示することができる。
Further, in the input / output mixing unit according to the present invention, the setting state of the input / output function is displayed on the screen of the peripheral tool by connecting to the peripheral tool such as the display device 100 or the personal computer 200 via the sequencer CPU 300. Can do.
なお、本実施の形態において、入出力混合ユニット４００の入出力端子群４１０の入出力端子４１１は、入力機能又は出力機能のいずれか一方に設定するようになされていたが、他の実施の形態として、入出力端子群４１０の入出力端子４１１を入力機能及び出力機能のいずれでも無く、信号の送受信を不通とする設定を加えるようにしても良い。これにより、入出力混合ユニット４００の入出力端子群の端子数と、入出力混合ユニット４００に接続する機器の端子数とに差がある場合、入出力混合ユニット４００の入出力端子群のうち、不使用の入出力端子４１１の入出力機能を停止することができる。
In the present embodiment, the input / output terminals 411 of the input / output terminal group 410 of the input / output mixing unit 400 are set to either the input function or the output function. As another example, the input / output terminal 411 of the input / output terminal group 410 may have a setting for disabling transmission / reception of signals without any input function or output function. Thereby, when there is a difference between the number of terminals of the input / output terminal group of the input / output mixing unit 400 and the number of terminals of the device connected to the input / output mixing unit 400, among the input / output terminal group of the input / output mixing unit 400, The input / output function of the unused input / output terminal 411 can be stopped.
また、本実施の形態において、入出力混合ユニット４００は、例えばディップスイッチのような物理的な切り替えスイッチによって、入出力端子群４１０における入出力端子４１１の機能を、入力機能または出力機能に切替えていたが、電気的な切替えスイッチによって、入出力端子４１１の機能を力機能または出力機能に切替えても良い。
In the present embodiment, the input / output mixing unit 400 switches the function of the input / output terminals 411 in the input / output terminal group 410 to an input function or an output function by a physical switch such as a dip switch. However, the function of the input / output terminal 411 may be switched to a force function or an output function by an electrical changeover switch.
更に、本実施の形態において、入出力混合ユニット４００は、表示機１００やパソコン２００等の画面上に表示されるＧＵＩ等の操作画面の操作によって生じる切替えコマンドに基づいて、電気的な切替えスイッチを用いて、入出力端子４１１の機能を入力機能または出力機能に切り替えても良い。
Furthermore, in the present embodiment, the input / output mixing unit 400 sets an electrical changeover switch based on a changeover command generated by operating an operation screen such as a GUI displayed on the screen of the display device 100 or the personal computer 200 or the like. The function of the input / output terminal 411 may be switched to an input function or an output function.
以上のように、本発明に係る入出力混合ユニットは、入力端子の点数と出力端子の点数の調整に適しているものである。
As described above, the input / output mixing unit according to the present invention is suitable for adjusting the number of input terminals and the number of output terminals.
１００ 表示機（表示器）
２００ パソコン
３００ シーケンサＣＰＵ
４００ 入出力混合ユニット
４１０ 入出力端子群
４１１ 入出力端子
４２０ ソケット
４４０ ＡＳＩＣ等の内部回路
４５０ 入出力端子１点分の入出力回路
４５１ 入力回路
４５２ 出力回路
４５３ 切替えスイッチ
４５３ａ、４５３ｂ、４５３ｃ 内部スイッチ
４５４ 設定状況監視回路
５００ 入力機能部
６００ 出力機能部
７００ 入出力機能設定スイッチ
８００ スイッチ、センサ等
９００ 外部負荷
１０００ 外部回路
Ｉ１００ 電流制限抵抗
Ｉ２００ フォトカプラ
Ｉ３００ 出力用トランジスタ
Ｉ４００ 定電圧回路
Ｉ５００ プルダウン抵抗
Ｉ６００ フォトカプラ
Ｉ７００ 入力抵抗 100 display (display)
200PC 300 Sequencer CPU
400 Input / outputmixed unit 410 Input / output terminal group 411 Input / output terminal 420 Socket 440 Internal circuit 450 such as ASIC Input / output circuit for one input / output terminal 451 Input circuit 452 Output circuit 453 Changeover switch 453a, 453b, 453c Internal switch 454 Setting condition monitoring circuit 500 Input function unit 600 Output function unit 700 Input / output function setting switch 800 Switch, sensor, etc. 900 External load 1000 External circuit I100 Current limiting resistor I200 Photocoupler I300 Output transistor I400 Constant voltage circuit I500 Pull-down resistor I600 Photocoupler I700 Input resistance
２００ パソコン
３００ シーケンサＣＰＵ
４００ 入出力混合ユニット
４１０ 入出力端子群
４１１ 入出力端子
４２０ ソケット
４４０ ＡＳＩＣ等の内部回路
４５０ 入出力端子１点分の入出力回路
４５１ 入力回路
４５２ 出力回路
４５３ 切替えスイッチ
４５３ａ、４５３ｂ、４５３ｃ 内部スイッチ
４５４ 設定状況監視回路
５００ 入力機能部
６００ 出力機能部
７００ 入出力機能設定スイッチ
８００ スイッチ、センサ等
９００ 外部負荷
１０００ 外部回路
Ｉ１００ 電流制限抵抗
Ｉ２００ フォトカプラ
Ｉ３００ 出力用トランジスタ
Ｉ４００ 定電圧回路
Ｉ５００ プルダウン抵抗
Ｉ６００ フォトカプラ
Ｉ７００ 入力抵抗 100 display (display)
200
400 Input / output
Claims (7)
- 入力機能と出力機能とを有する入出力混合ユニットおいて、
外部からの信号を内部に入力する入力回路と、内部に入力した信号を外部に出力する出力回路と、上記入力回路と上記出力回路との接続を切替える切替えスイッチと、上記切替えスイッチに接続された複数の入出力端子とを備え、
上記切替えスイッチは、上記入出力端子毎に設けられていることを特徴とする入出力混合ユニット。 In an input / output mixing unit having an input function and an output function,
An input circuit for inputting a signal from the outside, an output circuit for outputting the signal input to the outside, a changeover switch for switching the connection between the input circuit and the output circuit, and the changeover switch With multiple input and output terminals,
The input / output mixing unit, wherein the changeover switch is provided for each of the input / output terminals. - 上記切替えスイッチの上記入力回路又は上記出力回路への接続は、上記入出力端子毎になされることを特徴とする請求項１記載の入出力混合ユニット。 The input / output mixing unit according to claim 1, wherein the input / output terminal is connected to the input circuit or the output circuit of the changeover switch.
- 上記切替えスイッチの切替えは、入出力混合ユニット筐体表面に設けられた入出力選定手段の選定に基づいて行われる
ことを特徴とする請求項１乃至２記載の入出力混合ユニット。 3. The input / output mixing unit according to claim 1, wherein the changeover switch is switched based on selection of an input / output selection means provided on the surface of the input / output mixing unit casing. - 上記切替えスイッチの切替えは、入出力混合ユニット筐体外部から入力された切替えコマンドに基づいて行われる
ことを特徴とする請求項１乃至２記載の入出力混合ユニット。 3. The input / output mixing unit according to claim 1, wherein the changeover switch is switched based on a switching command input from outside the input / output mixing unit casing. - 上記切替えスイッチの切替え先を監視する設定状況監視手段、を備えることを特徴する請求項１乃至４記載の入出力混合ユニット。 5. The input / output mixing unit according to claim 1, further comprising setting status monitoring means for monitoring a switching destination of the changeover switch.
- 上記設定状況監視手段が監視した上記切替えスイッチの切替え状況を表示する表示手段を備える
ことを特徴とする請求項５記載の入出力混合ユニット。 6. The input / output mixing unit according to claim 5, further comprising display means for displaying a switching status of the changeover switch monitored by the setting status monitoring means. - 上記切替えスイッチは、入出力混合ユニットの外部の回路に接続された第１の切替えスイッチと、上記入出力端子に接続された第２の切替えスイッチとからなり、
上記第１の切替えスイッチ及び第２の切替えスイッチは、上記入力回路と上記出力回路との接続を同時に切替えることを特徴とする請求項１乃至６記載の入出力混合ユニット。 The changeover switch includes a first changeover switch connected to an external circuit of the input / output mixing unit and a second changeover switch connected to the input / output terminal.
7. The input / output mixing unit according to claim 1, wherein the first changeover switch and the second changeover switch simultaneously switch the connection between the input circuit and the output circuit.
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| US10648241B2 (en) | 2014-10-10 | 2020-05-12 | Itrec B.V. | Marine riser section for subsea wellbore related operations |
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| JPH09312558A (en) * | 1996-05-23 | 1997-12-02 | Sharp Corp | Data transmission circuit |
| JP2003005719A (en) * | 2001-06-21 | 2003-01-08 | Matsushita Electric Ind Co Ltd | Signal line driving device, electric power supply adjusting device, and image display device |
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