JPH033006U - - Google Patents

Info

Publication number
JPH033006U
JPH033006U JP6211389U JP6211389U JPH033006U JP H033006 U JPH033006 U JP H033006U JP 6211389 U JP6211389 U JP 6211389U JP 6211389 U JP6211389 U JP 6211389U JP H033006 U JPH033006 U JP H033006U
Authority
JP
Japan
Prior art keywords
input
information signal
programmable controller
input device
constant current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6211389U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP6211389U priority Critical patent/JPH033006U/ja
Publication of JPH033006U publication Critical patent/JPH033006U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Programmable Controllers (AREA)

Description

【図面の簡単な説明】
第1図は本考案実施例の基本構成を示す回路図
、第2図は本考案実施例の具体的な構成を示す回
路図、第3図および第4図はそれぞれ従来例の回
路構成を示す回路図である。 1a……入力端子、1b……コモン端子、2a
……制限抵抗、3……ダイオードブリツジ、4…
…フオトカプラ、5a,5b……整流用ダイオー
ド、6a,6b……トランジスタ、7……コンデ
ンサ、8……バリスタ、9……定電流回路、10
,11……ツエナーダイオード。

Claims (1)

    【実用新案登録請求の範囲】
  1. 外部機器からの情報信号を入力し、当該入力し
    た情報信号の電圧レベルを変換してプログラマブ
    ルコントローラ本体へ出力するプログラマブルコ
    ントローラの入力装置において、前記情報信号の
    入力側の入力制限抵抗に定電流回路を直列に接続
    したことを特徴とするプログラマブルコントロー
    ラの入力装置。
JP6211389U 1989-05-29 1989-05-29 Pending JPH033006U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6211389U JPH033006U (ja) 1989-05-29 1989-05-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6211389U JPH033006U (ja) 1989-05-29 1989-05-29

Publications (1)

Publication Number Publication Date
JPH033006U true JPH033006U (ja) 1991-01-14

Family

ID=31590968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6211389U Pending JPH033006U (ja) 1989-05-29 1989-05-29

Country Status (1)

Country Link
JP (1) JPH033006U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100989696B1 (ko) * 2007-10-08 2010-10-26 박윤호 회전형 등받이 의자

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146305A (ja) * 1983-02-10 1984-08-22 Hitachi Ltd 電圧入力形プログラマブルコントロ−ラ
JPS6332607A (ja) * 1986-07-28 1988-02-12 Matsushita Electric Works Ltd 入力回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146305A (ja) * 1983-02-10 1984-08-22 Hitachi Ltd 電圧入力形プログラマブルコントロ−ラ
JPS6332607A (ja) * 1986-07-28 1988-02-12 Matsushita Electric Works Ltd 入力回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100989696B1 (ko) * 2007-10-08 2010-10-26 박윤호 회전형 등받이 의자

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