JPH021782U

JPH021782U -

Info

Publication number: JPH021782U
Application number: JP7860888U
Authority: JP
Priority date: 1988-06-14
Filing date: 1988-06-14
Publication date: 1990-01-08

Description

[Brief explanation of drawings]

第１図は第１の考案の一実施例を示す構成ブロ
ツク図、第２図は計器前面の構成図、第３図は動
作を説明するフローチヤートである。第４図は第
２の考案の一実施例を示す構成斜視図、第５図は
第４図の装置の構成ブロツク図、第６図はキーボ
ードを介して多点人出力装置の入力作業をする場
合の説明図である。第７図は従来装置の構成ブロ
ツク図、第８図は多点入出力装置の正面図である
。１０……接点スイツチ、２４……発光ダイオー
ド、２６……信号処理回路、４１……判定回路、
４２……モード判別回路、５０……端子台、７０
……ＣＰＵユニツト。 FIG. 1 is a block diagram showing an embodiment of the first invention, FIG. 2 is a front diagram of the instrument, and FIG. 3 is a flowchart explaining the operation. FIG. 4 is a perspective view of the configuration of an embodiment of the second invention, FIG. 5 is a block diagram of the configuration of the device shown in FIG. FIG. FIG. 7 is a block diagram of a conventional device, and FIG. 8 is a front view of a multi-point input/output device. 10... Contact switch, 24... Light emitting diode, 26... Signal processing circuit, 41... Judgment circuit,
42...Mode discrimination circuit, 50...Terminal block, 70
...CPU unit.

Claims

[Claims for Utility Model Registration] (1) A light-emitting element that is provided in one-to-one correspondence with a plurality of input/output signals and displays the conduction state of the signals, and if the input/output signals are input signals, reads the input signals. A signal processing circuit that outputs data to the bus at the specified timing, and in the case of an output signal, reads data from the bus at the specified timing and outputs it to the output terminal, and mediates the exchange of information between the signal processing circuit and the bus. A display device for a multi-point input/output device, comprising: a bus interface circuit that instructs the timing of the light emitting device; a display section arranged in a shape, a means for determining whether the input/output signal is normal or abnormal, and a means for determining whether the input/output signal is normal or abnormal; When switching between normal/abnormal state is instructed, there is a mode in which an abnormal state is displayed on the display section, and in other cases, a mode in which the conduction state of the input/output signal is displayed using the light emitting element. 1. A display device for a multi-point input/output device, comprising: a mode discriminating circuit for determining a mode; (2) the light emitting element and signal processing circuit according to claim 1;
An input/output system in which a multi-point input/output device consisting of a bus interface circuit, a display section, and a mode discrimination circuit that switches the operation of the display section according to instructions from the outside is combined with a plurality of the display sections arranged in a row. , a control unit that sends instructions to each mode discrimination circuit through the bus interface circuit of these multi-point input/output devices and controls input/output; 1. A display device for a multi-point input/output device, characterized in that a character string is displayed using parts.